Log in

Relevant bibliographies by topics / Stellar feedbacks / Journal articles

To see the other types of publications on this topic, follow the link: Stellar feedbacks.

Journal articles on the topic 'Stellar feedbacks'

Author: Grafiati

Published: 8 June 2024

Last updated: 31 July 2025

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 50 journal articles for your research on the topic 'Stellar feedbacks.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse journal articles on a wide variety of disciplines and organise your bibliography correctly.

1

Ciardi, B. "Inhomogeneous reionization regulated by radiative and stellar feedbacks." Astronomical & Astrophysical Transactions 20, no. 1 (2001): 177–82. http://dx.doi.org/10.1080/10556790108208210.

Full text

APA, Harvard, Vancouver, ISO, and other styles

2

Ekström, Sylvia, Georges Meynet, Cyril Georgy, José Groh, Arthur Choplin, and Hanfeng Song. "Massive star evolution: feedbacks in low-Z environment." Proceedings of the International Astronomical Union 14, S344 (2018): 153–60. http://dx.doi.org/10.1017/s1743921318007238.

Full text

Abstract:

AbstractMassive stars are the drivers of the chemical evolution of dwarf galaxies. We review here the basics of massive star evolution and the specificities of stellar evolution in low-Z environment. We discuss nucleosynthetic aspects and what observations could constrain our view on the first generations of stars.

APA, Harvard, Vancouver, ISO, and other styles

3

Ciardi, B., A. Ferrara, F. Governato, and A. Jenkins. "Inhomogeneous reionization of the intergalactic medium regulated by radiative and stellar feedbacks." Monthly Notices of the Royal Astronomical Society 314, no. 3 (2000): 611–29. http://dx.doi.org/10.1046/j.1365-8711.2000.03365.x.

Full text

APA, Harvard, Vancouver, ISO, and other styles

4

Dekel, Avishai, Nir Mandelker, Frederic Bournaud, Daniel Ceverino, Yicheng Guo, and Joel Primack. "Clump survival and migration in VDI galaxies: an analytical model versus simulations and observations." Monthly Notices of the Royal Astronomical Society 511, no. 1 (2022): 316–40. http://dx.doi.org/10.1093/mnras/stab3810.

Full text

Abstract:

ABSTRACT We address the nature of the giant clumps in high-z galaxies that undergo violent disc instability, distinguishing between long-lived and short-lived clumps. We study the evolution of long-lived clumps during migration through the disc via an analytical model tested by simulations and confront theory with CANDELS-HST observations. The clump ‘bathtub’ model, which considers gas and stellar gain and loss, involves four parameters: the accretion efficiency α, the star formation rate (SFR) efficiency ϵd, and the outflow mass-loading factors for gas and stars, η and ηs. The corresponding t

APA, Harvard, Vancouver, ISO, and other styles

5

Fan, Bowen, Da Yang, and Dorian S. Abbot. "Climate Bistability at the Inner Edge of the Habitable Zone due to Runaway Greenhouse and Cloud Feedbacks." Astrophysical Journal Letters 973, no. 1 (2024): L22. http://dx.doi.org/10.3847/2041-8213/ad7789.

Full text

Abstract:

Abstract Understanding the climate dynamics at the inner edge of the habitable zone is crucial for predicting the habitability of rocky exoplanets. Previous studies using global climate models (GCMs) have indicated that planets receiving high stellar flux can exhibit climate bifurcations, leading to bistability between a cold (temperate) and a hot (runaway) climate. However, the mechanism causing this bistability has not been fully explained, in part due to the difficulty associated with inferring mechanisms from small numbers of expensive numerical simulations in GCMs. In this study, we emplo

APA, Harvard, Vancouver, ISO, and other styles

6

Locci, Daniele, Antonino Petralia, Giuseppina Micela, Antonio Maggio, Angela Ciaravella, and Cesare Cecchi-Pestellini. "Extreme-ultraviolet- and X-Ray-driven Photochemistry of Gaseous Exoplanets." Planetary Science Journal 3, no. 1 (2022): 1. http://dx.doi.org/10.3847/psj/ac3f3c.

Full text

Abstract:

Abstract The interaction of exoplanets with their host stars causes a vast diversity in bulk and atmospheric compositions and physical and chemical conditions. Stellar radiation, especially at the shorter wavelengths, drives the chemistry in the upper atmospheric layers of close orbiting gaseous giants, providing drastic departures from equilibrium. In this study, we aim at unfolding the effects caused by photons in different spectral bands on the atmospheric chemistry. This task is particularly difficult because the characteristics of chemical evolution emerge from many feedbacks on a wide ra

APA, Harvard, Vancouver, ISO, and other styles

7

Velmani, Premvijay, and Aseem Paranjape. "The evolving role of astrophysical modelling in dark matter halo relaxation response." Journal of Cosmology and Astroparticle Physics 2025, no. 07 (2025): 026. https://doi.org/10.1088/1475-7516/2025/07/026.

Full text

Abstract:

Abstract We study the change in the radial distribution of dark matter within haloes in response to baryonic astrophysical processes in galaxies at different epochs, investigating the role of astrophysical modeling in cosmological hydrodynamic simulations in producing the response. We find that the linear quasi-adiabatic relaxation with additional dependence on the halo-centric distance provides a good description not only at z = 0, but also at an earlier epoch (z = 1) in the IllustrisTNG simulation suite, with parameters being more universal across a much larger variety of haloes at z = 1 tha

APA, Harvard, Vancouver, ISO, and other styles

8

Wang 王, Jing 菁., Xuchen 旭辰 Lin 林, Lister Staveley-Smith, et al. "FEASTS Combined with Interferometry. II. Significantly Changed H i Surface Densities and Even More Inefficient Star Formation in Galaxy Outer Disks." Astrophysical Journal 973, no. 1 (2024): 15. http://dx.doi.org/10.3847/1538-4357/ad6763.

Full text

Abstract:

Abstract We update the H i surface density measurements for a subset of 17 THINGS galaxies by dealing with the short-spacing problem of the original Very Large Array (VLA) H i images. It is the same sample that Bigiel et al. used to study the relation between H i surface densities and star formation (SF) rate surface densities in galaxy outer disks, which are beyond the optical radius r 25. For 10 galaxies, the update is based on combining original THINGS VLA H i images with H i images taken by the single-dish FAST in the FEASTS program. The median increment of H i surface densities in outer d

APA, Harvard, Vancouver, ISO, and other styles

9

Fierlinger, Katharina M., Andreas Burkert, Evangelia Ntormousi, et al. "Stellar feedback efficiencies: supernovae versus stellar winds." Monthly Notices of the Royal Astronomical Society 456, no. 1 (2015): 710–30. http://dx.doi.org/10.1093/mnras/stv2699.

Full text

APA, Harvard, Vancouver, ISO, and other styles

10

D'Antona, Francesca. "Stellar evolution and feedback connections to stellar dynamics." Proceedings of the International Astronomical Union 2, no. 14 (2006): 430–31. http://dx.doi.org/10.1017/s1743921307011222.

Full text

Abstract:

AbstractUntil a few years ago, the common paradigm for the formation of Globular Clusters (GCs) was that they constitute a ‘simple stellar population’ in which all the stars were formed from a chemically homogeneous cluster medium within a relatively short interval of time, at the beginning of the galactic life. In recent years, the spectroscopic information on the low luminosity (turnoff) cluster stars have extended to the unevolved stars the recognition that chemical anomalies are a common feature of GCs and not an exception. This has provoked a revolution in the simple view of GC formation,

APA, Harvard, Vancouver, ISO, and other styles

11

Ivanova, Nataliya M. "Stellar dynamics and feedback connections to stellar evolution." Proceedings of the International Astronomical Union 2, no. 14 (2006): 432–33. http://dx.doi.org/10.1017/s1743921307011234.

Full text

Abstract:

AbstractIn dense stellar systems, dynamical interactions between objects inevitably lead to frequent formation of exotic stellar objects and multiple systems, thereby imposing new questions for the stellar evolution theory. The evolutionary path of such systems could be different from that of the unperturbed objects, therefore, we must re-evaluate their evolutionary treatment to clarify their consequent dynamical evolution. We review briefly the classes of important dynamical encounters and discuss several post-encounter outcomes that may require more detailed attention or development of a new

APA, Harvard, Vancouver, ISO, and other styles

12

Forget, F., and J. Leconte. "Possible climates on terrestrial exoplanets." Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences 372, no. 2014 (2014): 20130084. http://dx.doi.org/10.1098/rsta.2013.0084.

Full text

Abstract:

What kind of environment may exist on terrestrial planets around other stars? In spite of the lack of direct observations, it may not be premature to speculate on exoplanetary climates, for instance, to optimize future telescopic observations or to assess the probability of habitable worlds. To begin with, climate primarily depends on (i) the atmospheric composition and the volatile inventory; (ii) the incident stellar flux; and (iii) the tidal evolution of the planetary spin, which can notably lock a planet with a permanent night side. The atmospheric composition and mass depends on complex p

APA, Harvard, Vancouver, ISO, and other styles

13

Herbst, Konstantin, John Lee Grenfell, Miriam Sinnhuber, et al. "A new model suite to determine the influence of cosmic rays on (exo)planetary atmospheric biosignatures." Astronomy & Astrophysics 631 (October 31, 2019): A101. http://dx.doi.org/10.1051/0004-6361/201935888.

Full text

Abstract:

Context. The first opportunity to detect indications for life outside of the Solar System may be provided already within the next decade with upcoming missions such as the James Webb Space Telescope (JWST), the European Extremely Large Telescope (E-ELT) and the Atmospheric Remote-sensing Infrared Exoplanet Large-survey (ARIEL) mission, searching for atmospheric biosignatures on planets in the habitable zone of cool K- and M-stars. Nevertheless, their harsh stellar radiation and particle environment could lead to photochemical loss of atmospheric biosignatures. Aims. We aim to study the influen

APA, Harvard, Vancouver, ISO, and other styles

14

Raju, Aman N., Dávid Guszejnov, and Stella S. R. Offner. "Stellar Multiplicity in an RMHD Simulation with Stellar Feedback." Research Notes of the AAS 5, no. 7 (2021): 164. http://dx.doi.org/10.3847/2515-5172/ac151e.

Full text

APA, Harvard, Vancouver, ISO, and other styles

15

Yang, Longhui, Dejian Liu, Chaojie Hao, et al. "Kinematics of Young Stellar Objects under Various Stellar Feedback." Astrophysical Journal Supplement Series 276, no. 1 (2025): 22. https://doi.org/10.3847/1538-4365/ad8d53.

Full text

Abstract:

Abstract Based on the Gaia Data Release 3 and APOGEE data sets, we investigate the kinematic differences between young stellar objects (YSOs) and their parent clouds in five nearby star-forming regions. Overall, the one-dimensional velocity differences between Class II YSOs and their parent molecular cloud range from [0, 1.4] km s−1. In feedback environments dominated by outflows, massive stars, and supernova feedback, the corresponding velocity differences range from [0, 1.4], [0.1, 0.4], and [0.1, 1] km s−1, respectively. These results indicate that YSO kinematics are not significantly affec

APA, Harvard, Vancouver, ISO, and other styles

16

Woods, Paul. "Feedback gets a stellar review." Nature Astronomy 6, no. 4 (2022): 413. http://dx.doi.org/10.1038/s41550-022-01672-5.

Full text

APA, Harvard, Vancouver, ISO, and other styles

17

Swartz, W. H., R. S. Stolarski, L. D. Oman, E. L. Fleming, and C. H. Jackman. "Middle atmosphere response to different descriptions of the 11-yr solar cycle in spectral irradiance in a chemistry-climate model." Atmospheric Chemistry and Physics Discussions 12, no. 3 (2012): 7039–71. http://dx.doi.org/10.5194/acpd-12-7039-2012.

Full text

Abstract:

Abstract. The 11-yr solar cycle in solar spectral irradiance (SSI) inferred from measurements by the SOlar Radiation &amp; Climate Experiment (SORCE) suggests a much larger variation in the ultraviolet than previously accepted. We present middle atmosphere ozone and temperature responses to the solar cycles in SORCE SSI and the ubiquitous Naval Research Laboratory (NRL) SSI reconstruction using the Goddard Earth Observing System chemistry-climate model (GEOS CCM). The results are largely consistent with other recent modeling studies. The modeled ozone response is positive throughout the st

APA, Harvard, Vancouver, ISO, and other styles

18

Tillman, Megan Taylor, Blakesley Burkhart, Stephanie Tonnesen та ін. "An Exploration of AGN and Stellar Feedback Effects in the Intergalactic Medium via the Low-redshift Lyα Forest". Astronomical Journal 166, № 6 (2023): 228. http://dx.doi.org/10.3847/1538-3881/ad02f5.

Full text

Abstract:

Abstract We explore the role of galactic feedback on the low-redshift Lyα (Lyα) forest (z ≲ 2) statistics and its potential to alter the thermal state of the intergalactic medium. Using the Cosmology and Astrophysics with Machine Learning Simulations (CAMELS) suite, we explore variations of the AGN and stellar feedback models in the IllustrisTNG and Simba subgrid models. We find that both AGN and stellar feedback in Simba play a role in setting the Lyα forest column density distribution function (CDD) and the Doppler width (b-value) distribution. The Simba AGN jet feedback mode is able to effi

APA, Harvard, Vancouver, ISO, and other styles

19

Ceverino, Daniel, та Anatoly Klypin. "The role of stellar feedback in the formation of galactic disks and bulges in a ΛCDM Universe". Proceedings of the International Astronomical Union 3, S245 (2007): 33–34. http://dx.doi.org/10.1017/s1743921308017213.

Full text

Abstract:

AbstractAlthough supernova explosions and stellar winds happens at scales bellow 100 pc, they affect the interstellar medium (ISM) and galaxy formation. We use cosmological N-body+Hydrodynamics simulations of galaxy formation, as well as simulations of the ISM to study the effect of stellar feedback on galactic scales. Stellar feedback maintains gas with temperatures above a million degrees. This gas fills bubbles, super-bubbles and chimneys. Our model of feedback, in which 10%–30% of the feedback energy is coming from runaway stars, reproduces this hot gas only if the resolution is better tha

APA, Harvard, Vancouver, ISO, and other styles

20

Berentzen, Ingo, Isaac Shlosman, Inma Martinez‐Valpuesta, and Clayton H. Heller. "Gas Feedback on Stellar Bar Evolution." Astrophysical Journal 666, no. 1 (2007): 189–200. http://dx.doi.org/10.1086/520531.

Full text

APA, Harvard, Vancouver, ISO, and other styles

21

Palouš, Jan, Richard Wünsch, James E. Dale, Vojtěch Sidorin, and Anthony Whitworth. "Stellar feedback and triggered star formation." Proceedings of the International Astronomical Union 5, S266 (2009): 41–45. http://dx.doi.org/10.1017/s1743921309990858.

Full text

Abstract:

AbstractYoung, massive stars influence their ambient medium through winds and radiation. The outcome of this feedback depends on the number of massive stars in a star cluster and on the density of the ambient medium. This contribution is based on a comparison of observations to the results of numerical simulations. We discuss the gravitational fragmentation of feedback-driven shells expanding from young stellar clusters. The thin-shell approximation is compared to 3D hydrodynamical simulations with smoothed-particle hydrodynamics and adaptive-mesh refinement codes. We explore the influence of

APA, Harvard, Vancouver, ISO, and other styles

22

Mashchenko, S., J. Wadsley, and H. M. P. Couchman. "Stellar Feedback in Dwarf Galaxy Formation." Science 319, no. 5860 (2008): 174–77. http://dx.doi.org/10.1126/science.1148666.

Full text

APA, Harvard, Vancouver, ISO, and other styles

23

Azartash-Namin, Bianca, Anna Engelhardt, Ferah Munshi, et al. "Bursting with Feedback: The Relationship between Feedback Model and Bursty Star Formation Histories in Dwarf Galaxies." Astrophysical Journal 970, no. 1 (2024): 40. http://dx.doi.org/10.3847/1538-4357/ad49a5.

Full text

Abstract:

Abstract Due to their inability to self-regulate, ultrafaint dwarfs are sensitive to prescriptions in subgrid physics models that converge and regulate at higher masses. We use high-resolution cosmological simulations to compare the effect of bursty star formation histories (SFHs) on dwarf galaxy structure for two different subgrid supernova (SN) feedback models, superbubble and blastwave, in dwarf galaxies with stellar masses from 5000 < M */M ⊙ < 109. We find that in the “MARVEL-ous Dwarfs” suite both feedback models produce cored galaxies and reproduce observed scaling relations for l

APA, Harvard, Vancouver, ISO, and other styles

24

Fabian, A. C. "Cosmic Feedback from AGN." Proceedings of the International Astronomical Union 5, S267 (2009): 341–49. http://dx.doi.org/10.1017/s1743921310006691.

Full text

Abstract:

AbstractAccretion onto the massive black hole at the centre of a galaxy can feed energy and momentum into its surroundings via radiation, winds, and jets. Feedback due to radiation pressure can lock the mass of the black hole onto the MBH–σ relation, and shape the final stellar bulge of the galaxy. Feedback due to the kinetic power of jets can prevent massive galaxies greatly increasing their stellar mass by heating gas, which would otherwise cool radiatively. The mechanisms involved in cosmic feedback are discussed and illustrated with observations.

APA, Harvard, Vancouver, ISO, and other styles

25

Grudić, Michael Y., J. M. Diederik Kruijssen, Claude-André Faucher-Giguère, et al. "A model for the formation of stellar associations and clusters from giant molecular clouds." Monthly Notices of the Royal Astronomical Society 506, no. 3 (2021): 3239–58. http://dx.doi.org/10.1093/mnras/stab1894.

Full text

Abstract:

ABSTRACT We present a large suite of magnetohydrodynamic simulations of turbulent, star-forming giant molecular clouds (GMCs) with stellar feedback, extending previous work by simulating 10 different random realizations for each point in the parameter space of cloud mass and size. It is found that once the clouds disperse due to stellar feedback, both self-gravitating star clusters and unbound stars generally remain, which arise from the same underlying continuum of substructured stellar density, i.e. the hierarchical cluster formation scenario. The fraction of stars that are born within gravi

APA, Harvard, Vancouver, ISO, and other styles

26

Medlock, Isabel, Chloe Neufeld, Daisuke Nagai, et al. "Quantifying Baryonic Feedback on the Warm–Hot Circumgalactic Medium in CAMELS Simulations." Astrophysical Journal 980, no. 1 (2025): 61. https://doi.org/10.3847/1538-4357/ada442.

Full text

Abstract:

Abstract The baryonic physics shaping galaxy formation and evolution are complex, spanning a vast range of scales and making them challenging to model. Cosmological simulations rely on subgrid models that produce significantly different predictions. Understanding how models of stellar and active galactic nucleus (AGN) feedback affect baryon behavior across different halo masses and redshifts is essential. Using the SIMBA and IllustrisTNG suites from the Cosmology and Astrophysics with MachinE Learning Simulations (CAMELS) project, we explore the effect of parameters governing the subgrid imple

APA, Harvard, Vancouver, ISO, and other styles

27

Zaragoza-Cardiel, Javier, Jacopo Fritz, Itziar Aretxaga, et al. "A quantitative demonstration that stellar feedback locally regulates galaxy growth." Monthly Notices of the Royal Astronomical Society 499, no. 1 (2020): 1172–87. http://dx.doi.org/10.1093/mnras/staa2906.

Full text

Abstract:

ABSTRACT We have applied stellar population synthesis to 500-pc-sized regions in a sample of 102 galaxy discs observed with the MUSE spectrograph. We derived the star formation history and analyse specifically the ‘recent’ ($20\,\rm {Myr}$) and ‘past’ ($570\,\rm {Myr}$) age bins. Using a star formation self-regulator model, we can derive local mass-loading factors, η for specific regions, and find that this factor depends on the local stellar mass surface density, Σ*, in agreement with the predictions form hydrodynamical simulations including supernova feedback. We integrate the local η–Σ* rel

APA, Harvard, Vancouver, ISO, and other styles

28

Murray, Norman. "Feedback and Outflows." Proceedings of the International Astronomical Union 8, S292 (2012): 343–50. http://dx.doi.org/10.1017/s1743921313001671.

Full text

Abstract:

AbstractThe low stellar and gas mass fractions, low galaxy-wide star formation rates (relative to galactic dynamical times) and observations of rapid outflows from galaxies, all suggest that stars and active galactic nuclei violently alter the state of the interstellar and even inter-halo gas in galaxies. I argue that the low galaxy wide star formation rates are not the result of turbulent suppression of star formation on small scale, but rather the result of a balance between dynamical pressure and the force (or rate of momentum deposition) provided by stellar feedback, either in the form of

APA, Harvard, Vancouver, ISO, and other styles

29

Lau, Erwin T., Daisuke Nagai, Ákos Bogdán, et al. "X-Raying CAMELS: Constraining Baryonic Feedback in the Circumgalactic Medium with the CAMELS Simulations and eRASS X-Ray Observations." Astrophysical Journal 984, no. 2 (2025): 190. https://doi.org/10.3847/1538-4357/adc450.

Full text

Abstract:

Abstract The circumgalactic medium (CGM) around massive galaxies plays a crucial role in regulating star formation and feedback. Using the Cosmology and Astrophysics with MachinE Learning Simulations (CAMELS) suite, we develop emulators for the X-ray surface brightness profile and the X-ray luminosity–stellar mass scaling relation, to investigate how stellar and active galactic nucleus (AGN) feedback shape the X-ray properties of the hot CGM. Our analysis shows that at CGM scales (1012 ≲ M halo/M ⊙ ≲ 1013, 10 ≲ r kpc−1 ≲ 400), stellar feedback more significantly impacts the X-ray properties th

APA, Harvard, Vancouver, ISO, and other styles

30

Swartz, W. H., R. S. Stolarski, L. D. Oman, E. L. Fleming, and C. H. Jackman. "Middle atmosphere response to different descriptions of the 11-yr solar cycle in spectral irradiance in a chemistry-climate model." Atmospheric Chemistry and Physics 12, no. 13 (2012): 5937–48. http://dx.doi.org/10.5194/acp-12-5937-2012.

Full text

Abstract:

Abstract. The 11-yr solar cycle in solar spectral irradiance (SSI) inferred from measurements by the SOlar Radiation &amp; Climate Experiment (SORCE) suggests a much larger variation in the ultraviolet than previously accepted. We present middle atmosphere ozone and temperature responses to the solar cycles in SORCE SSI and the ubiquitous Naval Research Laboratory (NRL) SSI reconstruction using the Goddard Earth Observing System chemistry-climate model (GEOSCCM). The results are largely consistent with other recent modeling studies. The modeled ozone response is positive throughout the str

APA, Harvard, Vancouver, ISO, and other styles

31

Grudić, Michael Y., Philip F. Hopkins, Eliot Quataert, and Norman Murray. "The maximum stellar surface density due to the failure of stellar feedback." Monthly Notices of the Royal Astronomical Society 483, no. 4 (2018): 5548–53. http://dx.doi.org/10.1093/mnras/sty3386.

Full text

APA, Harvard, Vancouver, ISO, and other styles

32

Salcido, Jaime, Richard G. Bower, and Tom Theuns. "How feedback shapes galaxies: an analytic model." Monthly Notices of the Royal Astronomical Society 491, no. 4 (2019): 5083–100. http://dx.doi.org/10.1093/mnras/stz3156.

Full text

Abstract:

ABSTRACT We introduce a simple analytic model of galaxy formation that links the growth of dark matter haloes in a cosmological background to the build-up of stellar mass within them. The model aims to identify the physical processes that drive the galaxy-halo co-evolution through cosmic time. The model restricts the role of baryonic astrophysics to setting the relation between galaxies and their haloes. Using this approach, galaxy properties can be directly predicted from the growth of their host dark matter haloes. We explore models in which the effective star formation efficiency within hal

APA, Harvard, Vancouver, ISO, and other styles

33

Keller, B. W. "Where Did the Outskirts Go? Outer Stellar Halos as a Sensitive Probe of Supernova Feedback." Astrophysical Journal 939, no. 1 (2022): 4. http://dx.doi.org/10.3847/1538-4357/ac92fe.

Full text

Abstract:

Abstract A recent comparison by Merritt of simulated and observed Milky Way–mass galaxies has identified a significant tension between the outskirts (r > 20 kpc) of the stellar halos in simulated and observed galaxies. Using observations from the Dragonfly telescope and simulated galaxies from the Illustris-TNG100 project, Merritt found that the outskirts of stellar halos in simulated galaxies have surface densities 1–2 dex higher than those of observed galaxies. In this paper, we compare two suites of 15 simulated Milky Way–like galaxies, each drawn from the same initial conditions, simula

APA, Harvard, Vancouver, ISO, and other styles

34

Fush, S. Trevor, Brian W. O’Shea, Devin W. Silvia, Britton D. Smith, and John H. Wise. "Analyzing Star Formation Feedback Mechanisms in Cosmological Simulations." Research Notes of the AAS 6, no. 2 (2022): 38. http://dx.doi.org/10.3847/2515-5172/ac5821.

Full text

Abstract:

Abstract This study analyzes 18 simulated galaxies run using three prescriptions for stellar feedback, including thermal, kinetic, and interstellar medium pre-processing feedback mechanisms. Each simulation set models one of these mechanisms with 6 distinct galaxies, with varying M vir at z = 0. The morphological and thermodynamic quantities and distributions, as well as star formation histories, are compared to understand the impact of each stellar feedback mechanism. We find that the prescription for stellar feedback makes a significant impact on the behavior of galaxies, and observe systema

APA, Harvard, Vancouver, ISO, and other styles

35

Bally, John. "Dynamical processes in star forming regions: feedback and turbulence generation." Proceedings of the International Astronomical Union 2, S237 (2006): 165–71. http://dx.doi.org/10.1017/s1743921307001408.

Full text

Abstract:

AbstractYoung stellar objects (YSOs) inject large amounts of momentum and kinetic energy into their surroundings. Feedback from low mass YSOs is dominated by their outflows. However, as stellar mass increases, UV photo-heating and ionization play increasingly important roles. Massive stars produce powerful stellar winds and explode as supernovae within 3 – 40 Myr after birth. While low-mass protostellar feedback can drive turbulence in cloud cores and even disrupt the star forming environment, feedback from massive stars plays important roles in the generation of cloud structure and motions in

APA, Harvard, Vancouver, ISO, and other styles

36

Ciotti, Luca. "AGN feedback in numerical simulations." Proceedings of the International Astronomical Union 5, H15 (2009): 293. http://dx.doi.org/10.1017/s1743921310009348.

Full text

Abstract:

AbstractThe passively evolving stellar population in elliptical galaxies (Es) provides a continuous source of fuel for accretion on the central supermassive black hole (SMBH), which is 1) extended over the entire galaxy life (but declining with cosmic time), 2) linearly proportional to the stellar mass of the host spheroid, 3) summing up to a total gas mass that is > 100 times larger than the currently observed SMBH masses, 4) available independently of merging events. The main results of numerical simulations of Es with central SMBH, in which a physically based implementation of radiative

APA, Harvard, Vancouver, ISO, and other styles

37

Grudić, Michael Y., Michael Boylan-Kolchin, Claude-André Faucher-Giguère, and Philip F. Hopkins. "The universal acceleration scale from stellar feedback." Monthly Notices of the Royal Astronomical Society: Letters 496, no. 1 (2020): L127—L132. http://dx.doi.org/10.1093/mnrasl/slaa103.

Full text

Abstract:

ABSTRACT It has been established for decades that rotation curves deviate from the Newtonian gravity expectation given baryons alone below a characteristic acceleration scale $g_{\dagger }\sim 10^{-8}\, \rm {cm\, s^{-2}}$, a scale promoted to a new fundamental constant in MOND. In recent years, theoretical and observational studies have shown that the star formation efficiency (SFE) of dense gas scales with surface density, SFE ∼ Σ/Σcrit with $\Sigma _{\rm crit} \sim \langle \dot{p}/m_{\ast }\rangle /(\pi \, G)\sim 1000\, \rm {M_{\odot }\, pc^{-2}}$ (where $\langle \dot{p}/m_{\ast }\rangle$ is

APA, Harvard, Vancouver, ISO, and other styles

38

Sales, Laura V., Federico Marinacci, Volker Springel, and Margarita Petkova. "Stellar feedback by radiation pressure and photoionization." Monthly Notices of the Royal Astronomical Society 439, no. 3 (2014): 2990–3006. http://dx.doi.org/10.1093/mnras/stu155.

Full text

APA, Harvard, Vancouver, ISO, and other styles

39

Garratt-Smithson, Lilian, Graham A. Wynn, Chris Power, and C. J. Nixon. "Galactic chimney sweeping: the effect of ‘gradual’ stellar feedback mechanisms on the evolution of dwarf galaxies." Monthly Notices of the Royal Astronomical Society 489, no. 3 (2019): 4278–99. http://dx.doi.org/10.1093/mnras/stz2406.

Full text

Abstract:

ABSTRACT We investigate the impact of time-resolved ‘gradual’ stellar feedback processes in high redshift dwarf spheroidal galaxies. Here ‘gradual’ feedback refers to individual stellar feedback events which deposit energy over a period of time. We conduct high-resolution hydrodynamical simulations of dwarf spheroidal galaxies with halo masses of 107–108 M⊙, based on z = 6 progenitors of the Milky Way’s dwarf spheroidal galaxies. We also include a novel feedback prescription for individual massive stars, which includes stellar winds and an HMXB (high mass X-ray binary) phase, on top of superno

APA, Harvard, Vancouver, ISO, and other styles

40

Zenocratti, L. J., M. E. De Rossi, M. A. Lara-López, and T. Theuns. "Correlations between mass, stellar kinematics, and gas metallicity in eagle galaxies." Monthly Notices of the Royal Astronomical Society: Letters 496, no. 1 (2020): L33—L37. http://dx.doi.org/10.1093/mnrasl/slaa085.

Full text

Abstract:

ABSTRACT The metallicity of star-forming gas in galaxies from the eagle (Evolution and Assembly of GaLaxies and their Environments) simulations increases with stellar mass. Here, we investigate whether the scatter around this relation correlates with morphology and/or stellar kinematics. At redshift z = 0, galaxies with more rotational support have lower metallicities on average when the stellar mass is below M⋆ ≈ 1010 M⊙. This trend inverts at higher values of M⋆, when prolate galaxies show typically lower metallicity. At increasing redshifts, the trend between rotational support and metallic

APA, Harvard, Vancouver, ISO, and other styles

41

Mathew, Sajay Sunny, and Christoph Federrath. "Implementation of stellar heating feedback in simulations of star cluster formation: effects on the initial mass function." Monthly Notices of the Royal Astronomical Society 496, no. 4 (2020): 5201–10. http://dx.doi.org/10.1093/mnras/staa1931.

Full text

Abstract:

ABSTRACT Explaining the initial mass function (IMF) of stars is a long-standing problem in astrophysics. The number of complex mechanisms involved in the process of star cluster formation, such as turbulence, magnetic fields, and stellar feedback, make understanding and modelling the IMF a challenging task. In this paper, we aim to assert the importance of stellar heating feedback in the star cluster formation process and its effect on the shape of the IMF. We use an analytical sub-grid model to implement the radiative feedback in fully three-dimensional magnetohydrodynamical (MHD) simulations

APA, Harvard, Vancouver, ISO, and other styles

42

Kobayashi, Chiaki, and Philip Taylor. "Metallicities in cosmological simulations with AGN feedback." Proceedings of the International Astronomical Union 11, S319 (2015): 60. http://dx.doi.org/10.1017/s1743921315010352.

Full text

Abstract:

AbstractIn our cosmological, chemodynamical simulations, (i) the black hole mass–velocity dispersion relation does not evolve, and black holes actually grow along the relation. (ii) the stellar mass–metallicity relation does not change its shape, while the gas-phase relation has a steeper slope at higher redshifts. (iii) While stellar metallicity gradients are made shallower by galaxy mergers, gas-phase gradients are affected more strongly by AGN feedback.

APA, Harvard, Vancouver, ISO, and other styles

43

Martin, Crystal L. "Starburst Feedback in Local, Massive Galaxies." Proceedings of the International Astronomical Union 2, S235 (2006): 280–83. http://dx.doi.org/10.1017/s1743921306006600.

Full text

Abstract:

Major mergers of gas-rich galaxies, each comparable in mass to the Milky Way, are rare at the present epoch. These events were readily identifed, however, two decades ago in far-infrared sky surveys (Soifer et al. 1986, 1987). Removal of the dust enshrouding these starbursts was almost immediately proposed as an evolutionary path to quasar formation (Sanders 1988). Recent measurements of the stellar velocity dispersion, rotation speed, and stellar surface brightness profile of these mergers suggest ULIRGs are indeed progenitors of field elliptical galaxies (Genzel et al. 2001; Tacconi et al. 2

APA, Harvard, Vancouver, ISO, and other styles

44

Pittard, Julian M., and Hazel Rogers. "Stellar wind and supernova feedback from massive stars." Proceedings of the International Astronomical Union 10, H16 (2012): 586. http://dx.doi.org/10.1017/s1743921314012289.

Full text

Abstract:

AbstractWe have constructed three-dimensional hydrodynamical models to simulate the impact of massive star feedback, via winds and SNe, on inhomogeneous molecular material left over from the formation of a massive stellar cluster. We are studying the timescales for the molecular material to be removed from the environment of a massive stellar cluster and the mass and energy fluxes into the wider environment.

APA, Harvard, Vancouver, ISO, and other styles

45

Wu, Xiaohan, Rahul Kannan, Federico Marinacci, Mark Vogelsberger, and Lars Hernquist. "Simulating the effect of photoheating feedback during reionization." Monthly Notices of the Royal Astronomical Society 488, no. 1 (2019): 419–37. http://dx.doi.org/10.1093/mnras/stz1726.

Full text

Abstract:

Abstract We present self-consistent radiation hydrodynamic simulations of hydrogen reionization performed with arepo-rt complemented by a state-of-the-art galaxy formation model. We examine how photoheating feedback, due to reionization, shapes the galaxies properties. Our fiducial model completes reionization by z ≈ 6 and matches observations of the Ly α forest, the cosmic microwave background electron scattering optical depth, the high-redshift ultraviolet (UV) luminosity function, and stellar mass function. Contrary to previous works, photoheating suppresses star formation rates by more tha

APA, Harvard, Vancouver, ISO, and other styles

46

Hazenfratz, Roberto, Paramita Barai, Gustavo A. Lanfranchi, and Anderson Caproni. "Exploring the Evolution of a Dwarf Spheroidal Galaxy with Smoothed-particle Hydrodynamics Simulations. I. Stellar Feedback." Astrophysical Journal 969, no. 1 (2024): 65. http://dx.doi.org/10.3847/1538-4357/ad4700.

Full text

Abstract:

Abstract A fundamental question regarding the evolution of dwarf spheroidal galaxies is the identification of the key physical mechanisms responsible for gas depletion. Here, we focus on the study of stellar feedback in isolated dwarf spheroidal galaxies by performing numerical simulations using a modified version of the smoothed-particle hydrodynamics code GADGET-3. The Milky Way satellite Leo II (PGC 34176) in the Local Group was considered as our default model dwarf galaxy. The parameter space for the stellar feedback models was explored to match observational constraints of Leo II, such as

APA, Harvard, Vancouver, ISO, and other styles

47

Chen, Ke-Jung, Myoungwon Jeon, Thomas Greif, Volker Bromm, and Alexander Heger. "Impact of the First Stars to the First Galaxy Formation." Proceedings of the International Astronomical Union 8, S295 (2012): 21. http://dx.doi.org/10.1017/s1743921313004171.

Full text

Abstract:

AbstractWe present the results from our cosmological simulations of the first stages of galaxy formation. We use Gadget-2 (Springel 2005), modified to include detailed cooling, chemistry, and radiative transfer of primordial gas to study the impact of the first stars on galaxy formation. In contrast to previous work, we apply a realistic treatment of stellar feedback by using updated stellar models for the first stars. In this proceeding, we briefly summarize how stellar feedback from the first stars affects the primordial IGM inside the first galaxies.

APA, Harvard, Vancouver, ISO, and other styles

48

Zhang 张, Zhijie 志杰, Xiaoxia 小霞 Zhang 张, Hui 辉. Li 李, et al. "Low- and High-velocity O vi in Milky Way-like Galaxies: The Role of Stellar Feedback." Astrophysical Journal 962, no. 1 (2024): 15. http://dx.doi.org/10.3847/1538-4357/ad10a4.

Full text

Abstract:

Abstract Milky Way-type galaxies are surrounded by a warm-hot gaseous halo containing a considerable amount of baryons and metals. The kinematics and spatial distribution of highly ionized ion species such as O vi can be significantly affected by supernova (SN) explosions and early (pre-SN) stellar feedback (e.g., stellar winds, radiation pressure). Here we investigate effects of stellar feedback on O vi absorptions in Milky Way−like galaxies by analyzing the suites of high-resolution hydrodynamical simulations under the framework of SMUGGLE, a physically motivated subgrid interstellar medium

APA, Harvard, Vancouver, ISO, and other styles

49

Iani, E., A. Zanella, J. Vernet, et al. "Stellar feedback in a clumpy galaxy at z ∼ 3.4." Monthly Notices of the Royal Astronomical Society 507, no. 3 (2021): 3830–48. http://dx.doi.org/10.1093/mnras/stab2376.

Full text

Abstract:

ABSTRACT Giant star-forming regions (clumps) are widespread features of galaxies at z ≈ 1−4. Theory predicts that they can play a crucial role in galaxy evolution, if they survive to stellar feedback for &gt;50 Myr. Numerical simulations show that clumps’ survival depends on the stellar feedback recipes that are adopted. Up to date, observational constraints on both clumps’ outflows strength and gas removal time-scale are still uncertain. In this context, we study a line-emitting galaxy at redshift z ≃ 3.4 lensed by the foreground galaxy cluster Abell 2895. Four compact clumps with sizes ≲

APA, Harvard, Vancouver, ISO, and other styles

50

Li, Hui, Mark Vogelsberger, Federico Marinacci, and Oleg Y. Gnedin. "Disruption of giant molecular clouds and formation of bound star clusters under the influence of momentum stellar feedback." Monthly Notices of the Royal Astronomical Society 487, no. 1 (2019): 364–80. http://dx.doi.org/10.1093/mnras/stz1271.

Full text

Abstract:

Abstract Energetic feedback from star clusters plays a pivotal role in shaping the dynamical evolution of giant molecular clouds (GMCs). To study the effects of stellar feedback on the star formation efficiency of the clouds and the dynamical response of embedded star clusters, we perform a suite of isolated GMC simulations with star formation and momentum feedback subgrid models using the moving-mesh hydrodynamics code Arepo. The properties of our simulated GMCs span a wide range of initial mass, radius, and velocity configurations. We find that the ratio of the final stellar mass to the tota

APA, Harvard, Vancouver, ISO, and other styles

We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!