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Articles de revues sur le sujet « Missing mass (Astronomy) »

Auteur : Grafiati

Publié le 4 juin 2021

Mis à jour le 31 janvier 2023

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1

Malkov, O. Yu. "Local missing mass." Astrophysics 37, no. 3 (July 1994): 256–60. http://dx.doi.org/10.1007/bf02058781.

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2

Visser, Matt. "Is the ?missing mass? really missing?" General Relativity and Gravitation 20, no. 1 (January 1988): 77–81. http://dx.doi.org/10.1007/bf00759258.

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3

Atkins, Chris. "The missing mass." Physics World 34, no. 10 (December 1, 2021): 25v. http://dx.doi.org/10.1088/2058-7058/34/10/32.

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In response to the Lateral Thoughts quiz “Sporting chance”, in which question 8 asked for a rough estimate of the theoretical maximum height a pole vaulter could jump, and why the actual world record is slightly above this.

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4

Petit, J. P. "The missing-mass problem." Il Nuovo Cimento B 109, no. 7 (July 1994): 697–709. http://dx.doi.org/10.1007/bf02722527.

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5

Krishan, V. "Rotation curves of galaxies: Missing mass or missing physics." Pramana 49, no. 1 (July 1997): 147–54. http://dx.doi.org/10.1007/bf02856345.

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6

Schatzman, E. "Missing mass or dark matter?" International Journal of Theoretical Physics 28, no. 9 (September 1989): 1169–71. http://dx.doi.org/10.1007/bf00670357.

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7

Surdin, M. "The Missing Mass of the Universe." Physics Essays 13, no. 1 (March 2000): 130–31. http://dx.doi.org/10.4006/1.3025419.

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8

Trippe, Sascha. "The ‘Missing Mass Problem’ in Astronomy and the Need for a Modified Law of Gravity." Zeitschrift für Naturforschung A 69, no. 3-4 (April 1, 2014): 173–87. http://dx.doi.org/10.5560/zna.2014-0003.

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Since the 1930s, astronomical observations have accumulated evidence that our understanding of the dynamics of galaxies and groups of galaxies is grossly incomplete: assuming the validity of Newton’s law of gravity on astronomical scales, the observed mass (stored in stars and interstellar gas) of stellar systems can account only for roughly 10% of the dynamical (gravitating) mass required to explain the high velocities of stars in those systems. The standard approach to this ‘missing mass problem’ has been the postulate of ‘dark matter’, meaning an additional, electromagnetically dark, matter

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9

Gorjup, Niko, and Amrit Sorli. "SMBH relativistic mass and missing dark matter." Advanced Studies in Theoretical Physics 16, no. 4 (2022): 291–97. http://dx.doi.org/10.12988/astp.2022.91963.

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10

Cook, Richard I., and I. P. Dell'Antonio. "THE MISSING WEAK LENSING MASS IN A781." Astrophysical Journal 750, no. 2 (April 25, 2012): 153. http://dx.doi.org/10.1088/0004-637x/750/2/153.

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11

Mossel, Elchanan, and Mesrob I. Ohannessian. "On the Impossibility of Learning the Missing Mass." Entropy 21, no. 1 (January 2, 2019): 28. http://dx.doi.org/10.3390/e21010028.

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This paper shows that one cannot learn the probability of rare events without imposing further structural assumptions. The event of interest is that of obtaining an outcome outside the coverage of an i.i.d. sample from a discrete distribution. The probability of this event is referred to as the “missing mass”. The impossibility result can then be stated as: the missing mass is not distribution-free learnable in relative error. The proof is semi-constructive and relies on a coupling argument using a dithered geometric distribution. Via a reduction, this impossibility also extends to both discre

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12

Walker, Phil. "Magnetism and the missing mass of the universe." Physics World 8, no. 9 (September 1995): 19. http://dx.doi.org/10.1088/2058-7058/8/9/13.

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13

Krauss, Lawrence, and Michael S. Turner. "Quintessence: The Mystery of Missing Mass in the Universe." Physics Today 53, no. 9 (September 2000): 65–66. http://dx.doi.org/10.1063/1.1325241.

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14

Bahcall, J. N., and S. Casertano. "Some possible regularities in the missing mass problem." Astrophysical Journal 293 (June 1985): L7. http://dx.doi.org/10.1086/184480.

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15

Kleyna, Jan T., Mark I. Wilkinson, N. Wyn Evans, and Gerard Gilmore. "Ursa Major: A Missing Low-Mass CDM Halo?" Astrophysical Journal 630, no. 2 (August 19, 2005): L141—L144. http://dx.doi.org/10.1086/491654.

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16

Santander-García, Miguel, David Jones, Javier Alcolea, Roger Wesson, and Valentín Bujarrabal. "The missing mass conundrum of post-common-envelope planetary nebulae." Proceedings of the International Astronomical Union 14, S343 (August 2018): 239–43. http://dx.doi.org/10.1017/s1743921318005495.

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AbstractMost planetary nebulae (PNe) show beautiful, axisymmetric morphologies despite their progenitor stars being essentially spherical. Angular momentum provided by a close binary companion is widely invoked as the main agent that would help eject an axisymmetric nebula, after a brief phase of engulfment of the secondary within the envelope of the Asymptotic Giant Branch (AGB) star, known as a common envelope (CE). The evolution on the AGB would thus be interrupted abruptly, its (still quite) massive envelope fully ejected to form the PN, which should be more massive than a PN coming from t

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17

Stuckey, W. M., Timothy McDevitt, A. K. Sten, and Michael Silberstein. "Could GR contextuality resolve the missing mass problem?" International Journal of Modern Physics D 27, no. 14 (October 2018): 1847018. http://dx.doi.org/10.1142/s0218271818470181.

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In Newtonian gravity, mass is an intrinsic property of matter, while in general relativity (GR), mass is a contextual property of matter, e.g. when two different GR spacetimes are adjoined. Herein, we explore the possibility that the astrophysical missing mass attributed to nonbaryonic dark matter (DM) actually obtains because we have been assuming the Newtonian intrinsic view of mass rather than the GR contextual view. Perhaps we should model astrophysical phenomena via combined GR spacetimes to better account for their complexity. Accordingly, we consider a GR ansatz in fitting galactic rota

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18

Bardalez Gagliuffi, Daniella C., Jacqueline K. Faherty, Adam C. Schneider, Aaron Meisner, Dan Caselden, Guillaume Colin, Sam Goodman, et al. "WISEA J083011.95+283716.0: A Missing Link Planetary-mass Object." Astrophysical Journal 895, no. 2 (June 5, 2020): 145. http://dx.doi.org/10.3847/1538-4357/ab8d25.

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19

Eggen, Olin J. "The Sirius Supercluster and Missing Mass near the Sun." Astronomical Journal 116, no. 2 (August 1998): 782–88. http://dx.doi.org/10.1086/300465.

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20

Read, J. I., M. I. Wilkinson, N. Wyn Evans, G. Gilmore, and Jan T. Kleyna. "The mass of dwarf spheroidal galaxies and the missing satellite problem." Proceedings of the International Astronomical Union 1, no. C198 (March 2005): 235–39. http://dx.doi.org/10.1017/s1743921305003807.

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21

Fattahi, Azadeh, Julio F. Navarro, and Carlos S. Frenk. "The missing dwarf galaxies of the Local Group." Monthly Notices of the Royal Astronomical Society 493, no. 2 (February 10, 2020): 2596–605. http://dx.doi.org/10.1093/mnras/staa375.

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ABSTRACT We study the Local Group (LG) dwarf galaxy population predicted by the APOSTLE ΛCDM cosmological hydrodynamics simulations. These indicate that: (i) the total mass within 3 Mpc of the Milky Way–Andromeda mid-point (M3Mpc) typically exceeds ∼3 times the sum of the virial masses (M200crit) of the two primaries and (ii) the dwarf galaxy formation efficiency per unit mass is uniform throughout the volume. This suggests that the satellite population within the virial radii of the Milky Way and Andromeda should make up fewer than one third of all LG dwarfs within 3 Mpc. This is consistent w

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22

Datta, B., C. Sivaram, and S. K. Ghosh. "Neutral fermions as the missing mass matter in galactic halos." Astrophysics and Space Science 111, no. 2 (April 1985): 413–17. http://dx.doi.org/10.1007/bf00649981.

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23

Peterson, R. C. "Radial velocities of remote globular clusters - Stalking the missing mass." Astrophysical Journal 297 (October 1985): 309. http://dx.doi.org/10.1086/163529.

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24

Melott, A. L., and D. N. Schramm. "Can 'warm' particles provide the missing mass in dwarf galaxies?" Astrophysical Journal 298 (November 1985): 1. http://dx.doi.org/10.1086/163583.

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25

Valtonen, M. J., and G. G. Byrd. "Redshift asymmetries in systems of galaxies and the missing mass." Astrophysical Journal 303 (April 1986): 523. http://dx.doi.org/10.1086/164100.

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26

Sukhbold, Tuguldur, and Scott Adams. "Missing red supergiants and carbon burning." Monthly Notices of the Royal Astronomical Society 492, no. 2 (January 10, 2020): 2578–87. http://dx.doi.org/10.1093/mnras/staa059.

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ABSTRACT Recent studies on direct imaging of Type II core-collapse supernova progenitors indicate a possible threshold around MZAMS ∼ 16–20 M⊙, where red supergiants (RSG) with larger birth masses do not appear to result in supernova explosions and instead implode directly into a black hole. In this study, we argue that it is not a coincidence that this threshold closely matches the critical transition of central carbon burning in massive stars from the convective to radiative regime. In lighter stars, carbon burns convectively in the centre and result in compact final pre-supernova cores that

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27

McGaugh, Stacy S. "The Halo by Halo Missing Baryon Problem." Proceedings of the International Astronomical Union 3, S244 (June 2007): 136–45. http://dx.doi.org/10.1017/s1743921307013920.

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AbstractThe global missing baryon problem – that the sum of observed baryons falls short of the number expected form BBN – is well known. In addition to this, there is also a local missing baryon problem that applies to individual dark matter halos. This halo by halo missing baryon problem is such that the observed mass fraction of baryons in individual galaxies falls short of the cosmic baryon fraction. This deficit is a strong function of circular velocity. I give an empirical estimate of this function, and note the presence of a critical scale of ~ 900 km s−1 therein. I also briefly review

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28

Silverman, M. P., and R. L. Mallett. "Cosmic degenerate matter: a possible solution to the problem of missing mass." Classical and Quantum Gravity 18, no. 4 (February 2, 2001): L37—L42. http://dx.doi.org/10.1088/0264-9381/18/4/101.

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29

Atkins, Chris. "Clearing the bar." Physics World 34, no. 11 (December 1, 2021): 28v. http://dx.doi.org/10.1088/2058-7058/34/11/36.

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30

Sanders, R. H. "Missing Mass as Evidence for Modified Newtonian Dynamics at Low Accelerations." Modern Physics Letters A 18, no. 27 (September 7, 2003): 1861–75. http://dx.doi.org/10.1142/s0217732303011770.

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Milgrom has proposed that the appearance of discrepancies between the Newtonian dynamical mass and the directly observable mass in astronomical systems could be due to a breakdown of Newtonian dynamics in the limit of low accelerations rather than the presence of unseen matter. Milgrom's hypothesis, modified Newtonian dynamics or MOND, has been remarkably successful in explaining systematic properties of spiral and elliptical galaxies and predicting in detail the observed rotation curves of spiral galaxies with only one additional parameter — a critical acceleration which is on the order of th

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31

FARZAN, YASAMAN. "A FRAMEWORK TO SIMULTANEOUSLY EXPLAIN TINY NEUTRINO MASS AND HUGE MISSING MASS PROBLEM OF THE UNIVERSE." Modern Physics Letters A 25, no. 25 (August 20, 2010): 2111–20. http://dx.doi.org/10.1142/s0217732310034018.

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A minimalistic scenario is developed to explain dark matter and tiny but nonzero neutrino masses. A new scalar called SLIM plays the role of the dark matter. Neutrinos achieve Majorana mass through a one-loop diagram. This scenario can be realized for both real and complex SLIM. Simultaneously explaining the neutrino mass and dark matter abundance constrains the scenario. In particular for real SLIM, an upper bound of a few MeV on the masses of the new particles and a lower bound on their coupling is obtained which make the scenario testable. The low energy scenario can be embedded within vari

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32

Khoze, V. A., A. D. Martin, and M. G. Ryskin. "Double-diffractive processes in high-resolution missing-mass experiments at the Tevatron." European Physical Journal C 19, no. 3 (March 2001): 477–83. http://dx.doi.org/10.1007/s100520100637.

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33

Krasnov, Kirill, and Yuri Shtanov. "Non-metric gravity: II. Spherically symmetric solution, missing mass and redshifts of quasars." Classical and Quantum Gravity 25, no. 2 (December 20, 2007): 025002. http://dx.doi.org/10.1088/0264-9381/25/2/025002.

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34

Fielder, Catherine E., Yao-Yuan Mao, Jeffrey A. Newman, Andrew R. Zentner, and Timothy C. Licquia. "Predictably missing satellites: subhalo abundances in Milky Way-like haloes." Monthly Notices of the Royal Astronomical Society 486, no. 4 (April 17, 2019): 4545–68. http://dx.doi.org/10.1093/mnras/stz1098.

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ABSTRACT On small scales there have been a number of claims of discrepancies between the standard cold dark matter (CDM) model and observations. The ‘missing satellites problem’ infamously describes the overabundance of subhaloes from CDM simulations compared to the number of satellites observed in the Milky Way. A variety of solutions to this discrepancy have been proposed; however, the impact of the specific properties of the Milky Way halo relative to the typical halo of its mass has yet to be explored. Motivated by recent studies that identified ways in which the Milky Way is atypical, we

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35

Clowe, Douglas, Maxim Markevitch, Maruša Bradač, Anthony H. Gonzalez, Sun Mi Chung, Richard Massey, and Dennis Zaritsky. "ON DARK PEAKS AND MISSING MASS: A WEAK-LENSING MASS RECONSTRUCTION OF THE MERGING CLUSTER SYSTEM A520,." Astrophysical Journal 758, no. 2 (October 8, 2012): 128. http://dx.doi.org/10.1088/0004-637x/758/2/128.

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36

Boothroyd, Arnold I., I. J. Sackmann, and William A. Fowler. "Our sun. II - Early mass loss of 0.1 solar mass and the case of the missing lithium." Astrophysical Journal 377 (August 1991): 318. http://dx.doi.org/10.1086/170361.

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37

Merritt, Allison, Annalisa Pillepich, Pieter van Dokkum, Dylan Nelson, Lars Hernquist, Federico Marinacci, and Mark Vogelsberger. "A missing outskirts problem? Comparisons between stellar haloes in the Dragonfly Nearby Galaxies Survey and the TNG100 simulation." Monthly Notices of the Royal Astronomical Society 495, no. 4 (May 4, 2020): 4570–604. http://dx.doi.org/10.1093/mnras/staa1164.

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ABSTRACT Low surface brightness galactic stellar haloes provide a challenging but promising path towards unravelling the past assembly histories of individual galaxies. Here, we present detailed comparisons between the stellar haloes of Milky Way-mass disc galaxies observed as part of the Dragonfly Nearby Galaxies Survey (DNGS) and stellar mass-matched galaxies in the TNG100 run of the IllustrisTNG project. We produce stellar mass maps as well as mock g- and r-band images for randomly oriented simulated galaxies, convolving the latter with the Dragonfly point spread function (PSF) and taking c

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38

Chen, Jacqueline, Samuel K. Lee, Francisco-Javier Castander, José Maza, and Paul L. Schechter. "MISSING LENSED IMAGES AND THE GALAXY DISK MASS IN CXOCY J220132.8-320144." Astrophysical Journal 769, no. 1 (May 6, 2013): 81. http://dx.doi.org/10.1088/0004-637x/769/1/81.

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39

Posti, Lorenzo, Filippo Fraternali, and Antonino Marasco. "Peak star formation efficiency and no missing baryons in massive spirals." Astronomy & Astrophysics 626 (June 2019): A56. http://dx.doi.org/10.1051/0004-6361/201935553.

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It is commonly believed that galaxies use, throughout Hubble time, a very small fraction of the baryons associated with their dark matter halos to form stars. This so-called low star formation efficiency f⋆ ≡ M⋆/fbMhalo, where fb ≡ Ωb/Ωc is the cosmological baryon fraction, is expected to reach its peak at nearly L* (at efficiency ≈20%) and decline steeply at lower and higher masses. We have tested this using a sample of nearby star-forming galaxies, from dwarfs (M⋆ ≃ 107 M⊙) to high-mass spirals (M⋆ ≃ 1011 M⊙) with HI rotation curves and 3.6 μm photometry. We fit the observed rotation curves

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40

Jenkovszky, L. L., O. E. Kuprash, and V. K. Magas. "Low-mass Diffraction Dissociation at the LHC. Role of the Background." Ukrainian Journal of Physics 56, no. 7 (February 9, 2022): 738. http://dx.doi.org/10.15407/ujpe56.7.738.

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A dual model with a nonlinear proton Regge trajectory in the missing mass (M2X) channel is constructed. A background based on a direct-channel exotic trajectory, developed and applied earlier for the inclusive electron-proton cross section description in the nucleon resonance region, is used. The parameters of the model are determined from the extrapolations to earlier experiments. Predictions for the low-mass (2 < M2X < 8 GeV2) diffraction dissociation cross sections at the LHC energies are given.

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41

JIANG, XIAODONG. "A SEARCH FOR NEUTRAL BARYON RESONANCES BELOW PION THRESHOLD." International Journal of Modern Physics A 20, no. 08n09 (April 10, 2005): 1947–50. http://dx.doi.org/10.1142/s0217751x05023700.

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The reaction p(e,e′π+)X0 was studied with two high resolution magnetic spectrometers to search for narrow baryon resonances. A missing mass resolution of 2.0 MeV was achieved. A search for structures in the mass region of 0.97<MX0<1.06 GeV yielded no significant signal. The yield ratio of p(e,e′π+)X0/p(e,e′π+)n was determined to be (-0.35±0.35)×10-3 at 1.004 GeV and (0.34±0.42)×10-3 at 1.044 GeV. This measurement clearly demonstrated the potential of high resolution missing mass searches in coincidence experiments.

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42

LIMA, JOSÉ A. S., and LUCIO MARASSI. "MASS FUNCTION OF HALOS: A NEW ANALYTICAL APPROACH." International Journal of Modern Physics D 13, no. 07 (August 2004): 1345–49. http://dx.doi.org/10.1142/s0218271804005511.

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A generalization of the Press–Schechter (PS) formalism yielding the mass function of bound structures in the Universe is given. The extended formula is based on a power law distribution which encompasses the Gaussian PS formula as a special case. The new method keeps the original analytical simplicity of the PS approach and also solves naturally its main difficult (the missing factor 2) for a given value of the free parameter.

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43

Ruiz, María Teresa. "Do Low Luminosity Stars Matter?" Proceedings of the International Astronomical Union 5, H15 (November 2009): 47–60. http://dx.doi.org/10.1017/s1743921310008185.

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AbstractHistorically, low luminosity stars have attracted very little attention, in part because they are difficult to see except with large telescopes, however, by neglecting to study them we are leaving out the vast majority of stars in the Universe. Low mass stars evolve very slowly, it takes them trillions of years to burn their hydrogen, after which, they just turn into a He white dwarf, without ever going through the red giant phase. This lack of observable evolution partly explains the lack of interest in them. The search for the “missing mass” in the galactic plane turned things around

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Bournaud, Frederic. "Tidal Dwarf Galaxies and Missing Baryons." Advances in Astronomy 2010 (2010): 1–7. http://dx.doi.org/10.1155/2010/735284.

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Tidal dwarf galaxies form during the interaction, collision, or merger of massive spiral galaxies. They can resemble “normal” dwarf galaxies in terms of mass, size, and become dwarf satellites orbiting around their massive progenitor. They nevertheless keep some signatures from their origin, making them interesting targets for cosmological studies. In particular, they should be free from dark matter from a spheroidal halo. Flat rotation curves and high dynamical masses may then indicate the presence of an unseen component, and constrain the properties of the “missing baryons,” known to exist b

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45

Hawkins, Michael, and Charles Alcock. "Hunting Down the Universe: The Missing Mass, Primordial Black Holes, and Other Dark Matters." Physics Today 51, no. 7 (July 1998): 72. http://dx.doi.org/10.1063/1.882307.

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BAYIN, SELÇUK Ş. "MISSING MASS AND THE ACCELERATION OF THE UNIVERSE: IS QUINTESSENCE THE ONLY EXPLANATION?" International Journal of Modern Physics D 11, no. 10 (December 2002): 1523–29. http://dx.doi.org/10.1142/s0218271802002839.

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Detailed observations of the temperature fluctuations in the microwave background radiation indicate that we live in an open universe. From the size of these fluctuations, it is concluded that the geometry of the universe is quite close to Euclidean. In terms Friedmann models, this implies a mass density within 10% of the critical density required for a flat universe. Observed mass can only account for 30% of this mass density. Recently, an outstanding observation revealed that cosmos is accelerating. This motivated some astronomers to explain the missing 70% as some exotic dark energy called

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47

Stierwalt, Sabrina. "ALFALFA in the Leo Region: Looking for Missing Satellites in HI." Proceedings of the International Astronomical Union 3, S244 (June 2007): 385–86. http://dx.doi.org/10.1017/s1743921307014391.

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AbstractThe location of two nearby galaxy groups within ~20 Mpc in the Leo region allows for a detailed study of low-mass galaxies. A catalog of HI line detections in Leo (9h36m < α < 11h36m, +8° < δ < +16°) has been made from the blind HI survey ALFALFA. More sensitive single-pixel Arecibo observations targeted Leo dwarf candidates noted optically by Karachentsev et al. 2004 (K04) to determine group members and allow for a comparison of HI and optically-selected samples. This presentation highlights the differences between the two samples and the significant contribution blind HI

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48

Rigby, J. R., and G. H. Rieke. "Missing Massive Stars in Starbursts: Stellar Temperature Diagnostics and the Initial Mass Function." Astrophysical Journal 606, no. 1 (May 2004): 237–57. http://dx.doi.org/10.1086/382776.

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49

Muzzio, Juan C., Victor H. Dessaunet, and M. Marcela Vergne. "Tidal stripping and accretion in clusters of galaxies with smoothly distributed missing mass." Astrophysical Journal 313 (February 1987): 112. http://dx.doi.org/10.1086/164952.

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50

Rusin, David, and Chung-Pei Ma. "Constraints on the Inner Mass Profiles of Lensing Galaxies from Missing Odd Images." Astrophysical Journal 549, no. 1 (March 1, 2001): L33—L37. http://dx.doi.org/10.1086/319129.

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