Results 111 to 120 of about 4,926,824 (288)

Galaxy Formation and Cluster Formation [PDF]

open access: yesSymposium - International Astronomical Union, 1988
A primary motivation for studying globular clusters is that, as the oldest known galactic fossils, they trace the earliest stages of galactic evolution; indeed, they may hold the key to understanding galaxy formation. Thus it is clearly of great importance to learn how to read the fossil record. To do this, we need to understand something about how the
openaire   +2 more sources

The Epoch of Galaxy Formation [PDF]

open access: yesSymposium - International Astronomical Union, 1978
Unfortunately, there is as yet no direct observation of a forming galaxy, nor of a manifestly “young” galaxy. It is not even clear what such galaxies might look like. There are, however, some lines of attack that will yield indirect information about the environment in which galaxies formed.
Martin J. Rees, Bernard J. T. Jones
openaire   +2 more sources

Photometric Objects Around Cosmic Webs (PAC). VII. Disentangling Mass and Environment Quenching with the Aid of Galaxy–Halo Connection in Simulations

open access: yesThe Astrophysical Journal
Star formation quenching in galaxies plays a crucial role in galaxy evolution and is believed to be driven primarily by galaxy mass and environment.
Yun Zheng   +6 more
doaj   +1 more source

A New Stellar Mass Proxy for Subhalo Abundance Matching

open access: yesThe Astrophysical Journal, 2023
Subhalo abundance matching (SHAM) has played an important role in improving our understanding of how galaxies populate their host dark matter halos.
Chen-Yu Chuang, Yen-Ting Lin
doaj   +1 more source

Cosmological Constraints from Galaxy Clustering and the Mass-to-Number Ratio of Galaxy Clusters: Marginalizing over the Physics of Galaxy Formation

open access: yes, 2013
Many approaches to obtaining cosmological constraints rely on the connection between galaxies and dark matter. However, the distribution of galaxies is dependent on their formation and evolution as well as the cosmological model, and galaxy formation is ...
Lu, Yu   +3 more
core   +2 more sources

The time-evolution of bias [PDF]

open access: yes, 1998
We study the evolution of the bias factor b and the mass-galaxy correlation coefficient r in a simple analytic model for galaxy formation and the gravitational growth of clustering. The model shows that b and r can be strongly time-dependent, but tend to
Babul A.   +5 more
core   +2 more sources

A LAW FOR STAR FORMATION IN GALAXIES [PDF]

open access: yesThe Astrophysical Journal, 2011
We study the galactic-scale triggering of star formation. We find that the largest mass-scale not stabilized by rotation, a well defined quantity in a rotating system and with clear dynamical meaning, strongly correlates with the star formation rate in a wide range of galaxies.
openaire   +9 more sources

The impact of galaxy formation on the total mass, mass profile and abundance of haloes [PDF]

open access: yes, 2014
We use cosmological hydrodynamical simulations to investigate how the inclusion of physical processes relevant to galaxy formation (star formation, metal-line cooling, stellar winds, supernovae and feedback from Active Galactic Nuclei, AGN) change the ...
Marco Velliscig   +10 more
semanticscholar   +1 more source

PAC. V. The Roles of Mass and Environment in the Quenching of Galaxies

open access: yesThe Astrophysical Journal
The roles that mass and environment play in galaxy quenching are still under debate. Leveraging the Photometric objects Around Cosmic webs method, we analyze the excess surface distribution ${\bar{n}}_{2}{w}_{{\rm{p}}}({r}_{{\rm{p}}})$ of photometric ...
Yun Zheng   +8 more
doaj   +1 more source

Downsizing of Star-Forming Galaxies by Gravitational Processes

open access: yes, 2006
There is observed a trend that a lower mass galaxy forms stars at a later epoch. This downsizing of star-forming galaxies has been attributed to hydrodynamical or radiative feedback processes that regulate star formation.
Mouri, H., Taniguchi, Y.
core   +2 more sources

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