Results 41 to 50 of about 4,926,824 (288)
Quantitative Estimates of Environmental Effects on the Star Formation Rate of Disk Galaxies in Clusters of Galaxies [PDF]
, 1998 A simple model is constructed to evaluate the change of star formation rate of a disk galaxy due to environmental effects in clusters of galaxies. Three effects, (1) tidal force from the potential well of the cluster, (2) increase of external pressure ...
Evrard A. E. +6 more
core +2 more sources
Theoretical Challenges in Galaxy Formation [PDF]
, 2016 Numerical simulations have become a major tool for understanding galaxy formation and evolution. Over the decades the field has made significant progress.
T. Naab, J. Ostriker
semanticscholar +1 more source
The Formation of Galaxies [PDF]
Symposium - International Astronomical Union, 1983 The presently fashionable ideas for galaxy formation are reviewed briefly, and it is concluded that the standard isothermal heirarchy fits the available data best. A simple infall picture is presented which explains many of the observed properties of disk galaxies.
openaire +2 more sources
The Hydrangea simulations: galaxy formation in and around massive clusters [PDF]
, 2017 We introduce the Hydrangea simulations, a suite of 24 cosmological hydrodynamic zoom-in simulations of massive galaxy clusters (M200c = 1014–1015.4 M⊙) with baryon particle masses of ∼106 M⊙.
Y. Bah'e +14 more
semanticscholar +1 more source
The Astrophysical Journal, 2023 We use the DR9 of the DESI legacy imaging survey and SDSS galaxy groups to measure the conditional luminosity function (CLF) for groups with halo mass M _h ≥ 10 ^12 M _⊙ and redshift 0.01 ≤ z ≤ 0.08, down to a limiting r -band magnitude of M _r = −10 to −
Jiacheng Meng +5 more
doaj +1 more source
The formation of galaxy discs [PDF]
Monthly Notices of the Royal Astronomical Society, 2001 Galaxy disk formation must incorporate the multiphase nature of the interstellar medium. The resulting two-phase structure is generated and maintained by gravitational instability and supernova energy input, which yield a source of turbulent viscosity that is able to effectively compete in the protodisk phase with early angular momentum loss of the ...
openaire +4 more sources
FIRE in the field: Simulating the threshold of galaxy formation [PDF]
, 2016 We present a suite of 15 cosmological zoom-in simulations of isolated dark matter haloes, all with masses of M_(halo) ≈ 10^(10) M_⊙ at z = 0, in order to understand the relationship among halo assembly, galaxy formation and feedback's effects on the ...
Alex Fitts +11 more
semanticscholar +1 more source
Bar Formation in Milky Way type Galaxies
Open Astronomy, 2016 Many barred galaxies, possibly including the Milky Way, have cusps in their centers. There is a widespread belief, however, that the usual bar instability, which occurs in bulgeless galaxy models, is impossible for cuspy models because of the presence of
Polyachenko E. V., Berczik P., Just A.
doaj +1 more source
The Astrophysical Journal, 2023 We study the spatially resolved stellar populations of 444 galaxies at 0.3 < z < 6.0 in two clusters (WHL 0137–08 and MACS 0647+70) and a blank field, combining imaging data from the Hubble Space Telescope and JWST to perform spatially resolved spectral ...
Abdurro’uf +22 more
doaj +1 more source
How to model supernovae in simulations of star and galaxy formation [PDF]
, 2017 Author(s): Hopkins, PF; Wetzel, A; Keres, D; Faucher-Giguere, CA; Quataert, E; Boylan-Kolchin, M; Murray, N; Hayward, CC; El-Badry, K | Abstract: © 2018 The Author(s). Published by Oxford University Press on behalf of the Royal Astronomical Society.
P. Hopkins +8 more
semanticscholar +1 more source