Results 21 to 30 of about 3,052 (240)
ON ASYMMETRIC DISTRIBUTIONS OF SATELLITE GALAXIES [PDF]
The Astrophysical Journal, 2014 5 pages, 2 figures, Ap J (Letters), in ...
A. Bowden, N. W. Evans, V. Belokurov
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Binary satellite galaxies [PDF]
Monthly Notices of the Royal Astronomical Society, 2014 Suggestions have appeared in the literature that the following five pairs of Milky Way and Andromeda satellite galaxies are gravitationally bound: Draco and Ursa Minor, Leo IV and V, Andromeda I and III, NGC 147 and 185, and the Magellanic clouds. Under the assumption that a given pair is gravitationally bound, the Virial theorem provides an estimate ...
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Do satellite galaxies trace matter in galaxy clusters? [PDF]
Monthly Notices of the Royal Astronomical Society, 2018 The spatial distribution of satellite galaxies encodes rich information of the structure and assembly history of galaxy clusters. In this paper, we select a redMaPPer cluster sample in SDSS Stripe 82 region with $0.1 \le z \le 0.33$, $200.7$. Using the high-quality weak lensing data from CS82 Survey, we constrain the mass profile of this sample.
Wang, Chunxiang +11 more
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How environment drives galaxy evolution: Lessons learnt from satellite galaxies [PDF]
Astronomische Nachrichten, 2015 AbstractIt is by now well established that galaxy evolution is driven by intrinsic and environmental processes, both contributing to shape the observed properties of galaxies. A number of early studies, both observational and theoretical, have shown that the star formation activity of galaxies depends on their environmental local density and also on ...
A. Pasquali, Vorname Nachname
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Quenching of satellite galaxies at the outskirts of galaxy clusters [PDF]
Monthly Notices of the Royal Astronomical Society, 2018 We find, using cosmological simulations of galaxy clusters, that the hot X-ray emitting intra-cluster medium (ICM) enclosed within the outer accretion shock extends out to $R_{\rm shock}\sim(2 - 3) R_{\rm vir}$, where $R_{\rm vir}$ is the standard virial radius of the halo.
Elad Zinger +3 more
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The Astrophysical Journal, 2023 We use two zoom-in ΛCDM hydrodynamical simulations of massive disk galaxies to study the possible existence of fixed satellite groups showing a kinematically coherent behavior across evolution (angular momentum conservation and clustering).
Isabel Santos-Santos +10 more
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Back to the Green Valley: How to Rejuvenate an S0 Galaxy through Minor Mergers
Galaxies, 2015 About half of the S0 galaxies in the nearby Universe show signatures of recent or ongoing star formation. Whether these S0 galaxies were rejuvenated by the accretion of fresh gas is still controversial.
Michela Mapelli
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The Astrophysical Journal, 2023 This paper represents an effort to provide robust constraints on the galaxy–halo connection and simultaneously test the Planck ΛCDM cosmology using a fully numerical model of small-scale galaxy clustering.
Gillian D. Beltz-Mohrmann +3 more
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The origin of lopsided satellite galaxy distribution in galaxy pairs [PDF]
Monthly Notices of the Royal Astronomical Society, 2019 ABSTRACT It is well known that satellite galaxies are not isotropically distributed among their host galaxies as suggested by most interpretations of the Λ cold dark matter (ΛCDM) model. One type of anisotropy recently detected in the Sloan Digital Sky Survey (and seen when examining the distribution of satellites in the Local Group and ...
Gong, Chen Chris +8 more
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Satellite luminosities in galaxy groups [PDF]
Monthly Notices of the Royal Astronomical Society, 2007 Halo model interpretations of the luminosity dependence of galaxy clustering assume that there is a central galaxy in every sufficiently massive halo, and that this central galaxy is very different from all the others in the halo. The halo model decomposition makes the remarkable prediction that the mean luminosity of the non-central galaxies in a halo
Ramin A. Skibba +2 more
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