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Relevant bibliographies by topics / Dynamics of galaxies

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Academic literature on the topic 'Dynamics of galaxies'

Author: Grafiati

Published: 4 June 2021

Last updated: 11 March 2023

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Journal articles on the topic "Dynamics of galaxies"

1

Bellovary, Jillian M., Sarra Hayoune, Katheryn Chafla, et al. "The origins of off-centre massive black holes in dwarf galaxies." Monthly Notices of the Royal Astronomical Society 505, no. 4 (2021): 5129–41. http://dx.doi.org/10.1093/mnras/stab1665.

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ABSTRACT Massive black holes often exist within dwarf galaxies, and both simulations and observations have shown that a substantial fraction of these may be off-centre with respect to their hosts. We trace the evolution of off-centre massive black holes (MBHs) in dwarf galaxies using cosmological hydrodynamical simulations, and show that the reason for off-centre locations is mainly due to galaxy–galaxy mergers. We calculate dynamical time-scales and show that off-centre MBHs are unlikely to sink to their galaxys’ centres within a Hubble time, due to the shape of the hosts’ potential wells and low stellar densities. These wandering MBHs are unlikely to be detected electromagnetically, nor is there a measurable dynamical effect on the galaxy’s stellar population. We conclude that off-centre MBHs may be common in dwarfs, especially if the mass of the MBH is small or the stellar mass of the host galaxy is large. However, detecting them is extremely challenging, because their accretion luminosities are very low and they do not measurably alter the dynamics of their host galaxies.

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Bertin, G., and V. G. Surdin. "Dynamics of Galaxies." Astronomical & Astrophysical Transactions 20, no. 3 (2001): 603–5. http://dx.doi.org/10.1080/10556790108213605.

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Bekki, Kenji. "Star cluster dynamics in galaxies." Proceedings of the International Astronomical Union 5, S266 (2009): 219–30. http://dx.doi.org/10.1017/s1743921309991086.

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AbstractI present a review of star cluster (SC) dynamics in galaxies, with special emphasis on the effects of global galactic dynamics on SC formation and evolution. I particularly discuss (i) dynamical friction processes affecting SCs in galaxies of different masses, (ii) formation of stellar galactic nuclei and massive globular clusters (GCs) through multiple merging of SCs, (iii) interactions between giant molecular clouds (GMCs) and SCs, (iv) SC destruction due to the strong tidal fields in galaxy mergers and (v) the formation of low-mass dwarfs from numerous SCs. I also discuss some recent observational results on SC mass functions in dwarf galaxies and physical properties of GC systems in luminous galaxies based on recent results of numerical simulations of SC dynamics in galaxies.

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Sellwood, J. A., and A. Wilkinson. "Dynamics of barred galaxies." Reports on Progress in Physics 56, no. 2 (1993): 173–256. http://dx.doi.org/10.1088/0034-4885/56/2/001.

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Barnes, Joshua E., and Lars Hernquist. "Dynamics of Interacting Galaxies." Annual Review of Astronomy and Astrophysics 30, no. 1 (1992): 705–42. http://dx.doi.org/10.1146/annurev.aa.30.090192.003421.

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Merritt, D. "Dynamics of Elliptical Galaxies." Science 259, no. 5103 (1993): 1867–71. http://dx.doi.org/10.1126/science.259.5103.1867.

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Chen, Cheng-Yu, and Chorng-Yuan Hwang. "Dynamics of Companion Galaxies of Early-type Galaxies." Astrophysical Journal 903, no. 1 (2020): 38. http://dx.doi.org/10.3847/1538-4357/abb76c.

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Giri, Gourab, and Bhargav Vaidya. "Numerical modelling of X-shaped radio galaxies using back-flow model." Proceedings of the International Astronomical Union 16, S362 (2020): 70–75. http://dx.doi.org/10.1017/s1743921322001569.

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AbstractThe focus of this work is to comprehensively understand hydro-dynamical back-flows and their role in dynamics and non-thermal spectral signatures particularly during the initial phase of X-shaped radio galaxies. In this regard, we have performed axisymmetric (2D) and three dimensional (3D) simulations of relativistic magneto-hydrodynamic jet propagation from tri-axial galaxies. High-resolution dynamical modelling of axisymmetric jets has demonstrated the effect of magnetic field strengths on lobe and wing formation. Distinct X-shape formation due to back-flow and pressure gradient of ambient is also observed in our 3D dynamical run. Furthermore, the effect of radiative losses and diffusive shock acceleration on the particle spectral evolution is demonstrated, which particularly highlights how crucial their contributions are in the emission signature of these galaxies. This imparts a significant effect on the galaxy’s equipartition condition, indicating that one must be careful in extending its use in estimating other parameters, as the criterion evolves with time.

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Lelli, Federico, Marc Verheijen, and Filippo Fraternali. "Dynamics of starbursting dwarf galaxies." Astronomy & Astrophysics 566 (June 2014): A71. http://dx.doi.org/10.1051/0004-6361/201322657.

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Zaritsky, Dennis. "The Dynamics of Satellite Galaxies." Publications of the Astronomical Society of the Pacific 104 (February 1992): 155. http://dx.doi.org/10.1086/132972.

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Dissertations / Theses on the topic "Dynamics of galaxies"

1

Huang, S. N. "Dynamics of interacting galaxies." Thesis, University of Manchester, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.378332.

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Zaritsky, Dennis Fabian. "The dynamics of satellite galaxies." Diss., The University of Arizona, 1991. http://hdl.handle.net/10150/185639.

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We use the positions and velocities of satellites of our galaxy and of other spiral galaxies to determine the radial mass profile of dark matter halos. We combine our measurement of the velocities of five remote Galactic satellites with published observations of the other Galactic satellites to obtain a complete sample of test particles. We then apply statistical techniques and timing arguments to deduce that the mass of the Galaxy is ≳ 1.3 x 10¹²M(⊙) for standard assumptions and that the halo extends beyond 100 kpc Galactocentric distance. We confirm our result by examining the dynamics of other Local Group galaxies. Subsequently, we expand our study to include nearby (1000 km s⁻¹ < ν(R) < 7000 km s⁻¹) Sb-Sc type galaxies. We use multiaperture spectrometers to conduct a survey for satellite galaxies and are able to double the sample of known satellite galaxies (satellites are defined to be at least eight times fainter than the primary) of isolated unbarred late-type spirals. The homogeneity of the primaries allows us to combine observations of satellites of various primaries and analyze the dynamical properties of the ensemble. The characteristics of this satellite sample (number, radial and azimuthal distribution, luminosity function, orbital characteristics, and contamination) are discussed. Finally, new models of the dynamics of satellite galaxies are developed that include the effects of the cosmological evolution of the halos and do not presume that halos are virialized. These models are used to constrain the mass distribution in which the satellite galaxies orbit. We conclude that only model halos with more than 10¹²M(⊙) within a galactocentric radius of 200 kpc are acceptable (90% confidence limit) for orbits of eccentricity < 0.9. The preferred models (60% confidence limit) are of halos with more than 1.6 x 10¹²M(⊙) within 200 kpc. Halos that formed in a universe with Ω = 1 also fall within the preferred range and have ∼ 3 x 10¹²M(⊙) within 200 kpc. In addition, we infer that the satellites’ orbital eccentricities are typically less than 0.9. These results, in conjunction with the results obtained for the halo of our galaxy, constitute convincing evidence for the existence of large (>200 kpc) and massive (> 10¹²M(⊙), M/L > 80) dark matter halos around isolated unbarred late-type spiral galaxies.

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Millington, S. J. C. "Clusters of galaxies." Thesis, University of Oxford, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.382461.

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Naab, Thorsten. "Structure and dynamics of interacting galaxies." [S.l. : s.n.], 2000. http://deposit.ddb.de/cgi-bin/dokserv?idn=961763744.

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Lüghausen, Fabian [Verfasser]. "Galaxies in Milgromian Dynamics / Fabian Lüghausen." Bonn : Universitäts- und Landesbibliothek Bonn, 2015. http://d-nb.info/1077289189/34.

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Newton, A. J. "Distribution functions and dynamics of galaxies." Thesis, University of Oxford, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.371547.

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Hargreaves, Julia Catherine. "The dynamics of dwarf spheroidal galaxies." Thesis, University of Cambridge, 1995. https://www.repository.cam.ac.uk/handle/1810/270411.

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Yoachim, Peter. "Thick disks in external galaxies /." Thesis, Connect to this title online; UW restricted, 2007. http://hdl.handle.net/1773/5444.

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Velázquez, Hector Manuel. "Dynamics of disc galaxies and their satellites." Thesis, University of Cambridge, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.627438.

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El-Zant, A. A. "Nonlinear dynamics and the evolution of galaxies." Thesis, University of Sussex, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.321419.

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It has been customary practice in galactic dynamics to implicitly assume that the corresponding N-body problem is (near) integrable. After a review of some relevant ideas from non-linear dynamics, I discuss the evidence suggesting that the above assumption is not generally satisfied and the consequences of such a situation. Next, I discuss the characterization of such "chaotic" behaviour. A geometric method-which I argue is best suited for measuring the instability properties of N-body systems-is tested on systems of 231 particles integrated with high precision and displaying "obvious" instabilities like violent relaxation and collective processes. The predicted instability time-scales show good agreement with those inferred from the spatial evolution. As a further test I study closed systems which relax towards definite equilibrium states. The times of relaxation towards such states are then compared to the exponential instability time-scales in an attempt to identify the physical interpretation of the exponential instability that appears to be always present in N -body systems. As an application of the method, the variation of the exponential divergence time-scales in N -body Plummer models with particle number, rotation, softening, and central mass is studied. I also study the extent of chaotic behaviour in some non-axisymmetric but smooth potentials representing galaxies with triaxial halos. This is done with the aid of Liapunov exponents, Poincare maps, and stability analysis of resonant orbits. It is found that a significant amount of chaos is usually present and increases dramatically with the addition of rotating bar perturbations, or of central masses. The degree of instability may also depend on the presence of external noise. It is also shown that dissipative perturbations have the important effect of producing an inflow of matter to the central areas. The consequences of the above processes are then discussed and it is suggested that they may explain some aspects of the observed relative bulge-disk-halo contributions to galaxy rotation curves.

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Books on the topic "Dynamics of galaxies"

1

Dynamics of galaxies. Cambridge University Press, 2000.

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Sanchez, Abran Guerrera, and Rutilio E. Delgado Marquez. Galaxies: Evolution, morphology, and dynamics. Nova Science Publishers, 2011.

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Wielen, Roland, ed. Dynamics and Interactions of Galaxies. Springer Berlin Heidelberg, 1990. http://dx.doi.org/10.1007/978-3-642-75273-5.

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Sanchez, Abran Guerrera, and Rutilio E. Delgado Marquez. Galaxies: Evolution, morphology, and dynamics. Nova Science Publishers, 2011.

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5

De Zeeuw, Tim, ed. Structure and Dynamics of Elliptical Galaxies. Springer Netherlands, 1987. http://dx.doi.org/10.1007/978-94-009-3971-4.

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1928-, Contopoulos George, and Voglis N. 1948-, eds. Galaxies and chaos. Springer, 2003.

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7

Hartog, Roland Henrik den. The dynamics of rich galaxy clusters: Proefschrift. Sterrewacht, 1995.

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8

David, Merritt. Galaxy Dynamics: A Rutgers Symposium. Astronomical Society of the Pacific, 1999.

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9

Cubarsi, Rafael. Kinematics and dynamics of galactic stellar populations. Cambridge Scholars Publishing, 2018.

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10

Space Telescope Science Institute (U. Dynamics of Four Multiple-Nucleus Brightest Cluster Galaxies. s.n, 1985.

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Book chapters on the topic "Dynamics of galaxies"

1

Carati, Andrea, and Luigi Galgani. "Stellar Dynamics and Molecular Dynamics: Possible Analogies." In Galaxies and Chaos. Springer Berlin Heidelberg, 2003. http://dx.doi.org/10.1007/978-3-540-45040-5_3.

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Gerhard, Ortwin E. "Elliptical galaxies." In Galactic Dynamics and N-Body Simulations. Springer Berlin Heidelberg, 1994. http://dx.doi.org/10.1007/3-540-57983-4_21.

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Dvorak, Rudolf. "Chaos in Solar System Dynamics." In Galaxies and Chaos. Springer Berlin Heidelberg, 2003. http://dx.doi.org/10.1007/978-3-540-45040-5_34.

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Bertin, G. "Dynamics of Spiral and Elliptical Galaxies." In Windows on Galaxies. Springer Netherlands, 1990. http://dx.doi.org/10.1007/978-94-009-0543-6_44.

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Nieto, Jean-Luc, and Philippe Prugniel. "Compact Elliptical Galaxies." In Structure and Dynamics of Elliptical Galaxies. Springer Netherlands, 1987. http://dx.doi.org/10.1007/978-94-009-3971-4_8.

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Prieur, J. L. "Status of Shell Galaxies." In Dynamics and Interactions of Galaxies. Springer Berlin Heidelberg, 1990. http://dx.doi.org/10.1007/978-3-642-75273-5_11.

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Clowes, R. G., S. K. Leggett, A. Savage, and L. E. Campusano. "IRAS Galaxies and Morphology." In Dynamics and Interactions of Galaxies. Springer Berlin Heidelberg, 1990. http://dx.doi.org/10.1007/978-3-642-75273-5_29.

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Tonry, J. L. "Rummaging Through Elliptical Galaxies." In Dynamics and Interactions of Galaxies. Springer Berlin Heidelberg, 1990. http://dx.doi.org/10.1007/978-3-642-75273-5_66.

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Combes, F. "Comparison with External Galaxies Dynamics." In Unsolved Problems of the Milky Way. Springer Netherlands, 1996. http://dx.doi.org/10.1007/978-94-009-1687-6_17.

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Genzel, Reinhard, and L. J. Tacconi. "Dynamics of High-z Galaxies." In Mapping the Galaxy and Nearby Galaxies. Springer New York, 2008. http://dx.doi.org/10.1007/978-0-387-72768-4_40.

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Conference papers on the topic "Dynamics of galaxies"

1

BERTIN, G. "DYNAMICS OF SPIRAL GALAXIES." In Proceedings of the 2nd International Symposium. WORLD SCIENTIFIC, 2007. http://dx.doi.org/10.1142/9789812770455_0008.

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MA, CHUNG-PEI. "DARK MATTER DYNAMICS IN GALAXIES." In Proceedings of the 2nd International Symposium. WORLD SCIENTIFIC, 2007. http://dx.doi.org/10.1142/9789812770455_0009.

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Shlosman, Isaac. "Modeling Dynamics in the Central Regions of Disk Galaxies." In THE EVOLUTION OF STARBURSTS: The 331st Wilhelm and Else Heraeus Seminar. AIP, 2005. http://dx.doi.org/10.1063/1.2034990.

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Cesare, Valentina. "Dynamics of disk and elliptical galaxies in Refracted Gravity." In 1st Electronic Conference on Universe. MDPI, 2021. http://dx.doi.org/10.3390/ecu2021-09292.

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Chambers, K. C. "Morphology and dynamics of high Z radio galaxies and quasars." In AFTER THE DARK AGES. ASCE, 1999. http://dx.doi.org/10.1063/1.58609.

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Majewski, S. R. "Dynamics of Disrupting Milky Way Satellite Galaxies and Tidal Streams." In STELLAR ASTROPHYSICS WITH THE WORLD'S LARGEST TELESCOPES: First International Workshop on Stellar Astrophysics with the World's Largest Telescopes. AIP, 2005. http://dx.doi.org/10.1063/1.1893352.

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Krause, Martin, Marc Schartmann, and Andreas Burkert. "Dynamics of clouds in the broad-line region." In Narrow-Line Seyfert 1 Galaxies and their place in the Universe. Sissa Medialab, 2011. http://dx.doi.org/10.22323/1.126.0014.

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Battaner, Eduardo. "Magnetic fields and the dynamics of the outer disk of spiral galaxies." In MAGNETIC FIELDS IN THE UNIVERSE: From Laboratory and Stars to Primordial Structures. AIP, 2005. http://dx.doi.org/10.1063/1.2077249.

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Laing, Robert. "Kinematics and Dynamics of kiloparsec-scale Jets in Radio Galaxies with SKA." In Advancing Astrophysics with the Square Kilometre Array. Sissa Medialab, 2015. http://dx.doi.org/10.22323/1.215.0107.

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Ott, Jürgen, Evan Skillman, Julianne Dalcanton, et al. "Connecting Gas Dynamics and Star Formation Histories in Nearby Galaxies: The VLA—ANGST Survey." In THE EVOLUTION OF GALAXIES THROUGH THE NEUTRAL HYDROGEN WINDOW. AIP, 2008. http://dx.doi.org/10.1063/1.2973559.

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