Results 1 to 10 of about 5,482 (150)
Accretion of galaxy groups into galaxy clusters [PDF]
Monthly Notices of the Royal Astronomical Society, 2020 ABSTRACT We study the role of group infall in the assembly and dynamics of galaxy clusters in ΛCDM. We select 10 clusters with virial mass M200 ∼ 1014 $\rm M_\odot$ from the cosmological hydrodynamical simulation Illustris and follow their galaxies with stellar mass M⋆ ≥ 1.5 × 108 $\rm M_\odot$.
Laura V. Sales +3 more
openaire +4 more sources
Formation of a Massive Lenticular Galaxy Under the Tidal Interaction with a Group of Dwarf Galaxies
The Astrophysical Journal Letters, 2023 Based on the atomic-hydrogen (H i ) observations using the Five-hundred-meter Aperture Spherical radio Telescope, we present a detailed study of the gas-rich massive S0 galaxy NGC 1023 in a nearby galaxy group.
Jin-Long Xu +8 more
doaj +1 more source
Strangulation in Galaxy Groups [PDF]
The Astrophysical Journal, 2007 We use a cosmological chemodynamical simulation to study how the group environment impacts the star formation properties of disk galaxies. The simulated group has a total mass of M~8x10^12 Msun and a total X-ray luminosity of L_X~10^41 erg s^-1. Our simulation suggests that ram pressure is not sufficient in this group to remove the cold disk gas from a
Daisuke Kawata +2 more
openaire +3 more sources
Scaling Properties of Galaxy Groups [PDF]
Universe, 2021 Galaxy groups and poor clusters are more common than rich clusters, and host the largest fraction of matter content in the Universe. Hence, their studies are key to understand the gravitational and thermal evolution of the bulk of the cosmic matter.
Lorenzo Lovisari +3 more
openaire +5 more sources
The Galaxy Number Density Profile of Halos
The Astrophysical Journal, 2023 More precise measurements of galaxy clustering will be provided by the next generation of galaxy surveys, such as DESI, WALLABY, and the Square Kilometre Array.
Fei Qin +3 more
doaj +1 more source
The Effect of the LMC on the Milky Way System
Galaxies, 2023 We review the recent theoretical and observational developments concerning the interaction of the Large Magellanic Cloud (LMC) with the Milky Way and its neighbourhood.
Eugene Vasiliev
doaj +1 more source
Comparing galaxy populations in compact and loose groups of galaxies [PDF]
Astronomy & Astrophysics, 2013 Accepted for publication in Astronomy & Astrophysics (A&A)
Martinez, Hector Jose Ariel +2 more
openaire +5 more sources
The JWST PEARLS View of the El Gordo Galaxy Cluster and of the Structure It Magnifies
The Astrophysical Journal, 2023 The massive galaxy cluster El Gordo ( z = 0.87) imprints multitudes of gravitationally lensed arcs onto James Webb Space Telescope Near-Infrared Camera (NIRCam) images.
Brenda L. Frye +43 more
doaj +1 more source
Implications of the Milky Way Travel Velocity for Dynamical Mass Estimates of the Local Group
The Astrophysical Journal, 2022 The total mass of the Local Group (LG) is a fundamental quantity that enables interpreting the orbits of its constituent galaxies and placing the LG in a cosmological context.
Katie Chamberlain +6 more
doaj +1 more source
The Astrophysical Journal, 2023 Elucidating dark matter density profiles in Galactic dwarf satellites is essential to understanding not only the quintessence of dark matter, but also the evolution of the satellites themselves.
Kohei Hayashi +3 more
doaj +1 more source