Results 111 to 120 of about 431,836 (261)

Early Results from GLASS-JWST. XXV. Electron Density in the Interstellar Medium at 0.7 ≲ z ≲ 9.3 with NIRSpec High-resolution Spectroscopy

The Astrophysical Journal Letters
The electron density ( n _e ) of the interstellar medium (ISM) in star-forming galaxies is intimately linked to star formation and ionization condition.
Sijia Li, Xin Wang, Yuguang Chen, Tucker Jones, Tommaso Treu, Karl Glazebrook, Xianlong He, Alaina Henry, Xiao-Lei Meng, Takahiro Morishita, Guido Roberts-Borsani, Lilan Yang, Hao-Ran Yu, Antonello Calabrò, Marco Castellano, Nicha Leethochawalit, Benjamin Metha, Themiya Nanayakkara, Namrata Roy, Benedetta Vulcani   +19 more
doaj   +1 more source

On the Formation of Galaxies in a Steady State Universe [PDF]

, 1955
D. W. Sciama
openalex   +1 more source

Galaxy Pairs in the 2dF Survey I. Effects of Interactions in the Field

, 2003
We study galaxy pairs in the field selected from the 100 K public release of the 2dF galaxy redshift survey. Our analysis provides a well defined sample of 1258 galaxy pairs, a large database suitable for statistical studies of galaxy interactions in the
Barnes, Barton, Barton, Bergvall, Brinchmann, Carter, Colina, Colless, Diego G. Lambas, Domínguez-Tenreiro, Donzelli, Georgina Coldwell, Kennicutt, Kennicutt, Kennicutt, Larson, Le Fèvre, M. Sol Alonso, Madgwick, Madgwick, Merchán, Mihos, Patricia B. Tissera, Patton, Patton, Petrosian, Tissera, Tissera, Woods, Yee, Zeff   +30 more
core   +1 more source

Widespread Rapid Quenching at Cosmic Noon Revealed by JWST Deep Spectroscopy

The Astrophysical Journal
Massive quiescent galaxies in the young Universe are expected to be quenched rapidly, but it is unclear whether they all experience starbursts before quenching and what physical mechanism drives rapid quenching. We study 14 massive quiescent galaxies ( $\
Minjung Park, Sirio Belli, Charlie Conroy, Benjamin D. Johnson, Rebecca L. Davies, Joel Leja, Sandro Tacchella, J. Trevor Mendel, Chloë Benton, Letizia Bugiani, Razieh Emami, Amir H. Khoram, Yijia Li, Gabriel Maheson, Elijah P. Mathews, Rohan P. Naidu, Erica J. Nelson, Bryan A. Terrazas, Rainer Weinberger   +18 more
doaj   +1 more source

Downsizing of Star-Forming Galaxies by Gravitational Processes

, 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

A Model for the Formation of a Spherical Galaxy [PDF]

, 1969
Richard B. Larson
openalex   +1 more source

Formation of Triaxial Galaxy [PDF]

Journal of Astronomy and Space Sciences, 1987
Results of N-body simulation of dissipationless cold collapse of spherical gravitating system are presented. We compared the results with properties of elliptical galaxies. The system gradually evolved to triaxial system. The projected density profile is
Jang-Hyeon Park, Soo-Yong Kim
doaj  

Galaxy Formation in a Steady State Universe [PDF]

, 1966
James H. Hunter, D. W. Sciama
openalex   +1 more source

Massive Neutrinos and Galaxy Formation

, 1994
We report the most recent results from high-resolution numerical simulations of structure formation in two flat cold+hot dark matter models with neutrino mass densities $\onu=0.2$ and 0.3. We find that structure forms too late in all CDM+HDM models with $
Ma, Chung-Pei
core   +1 more source

The relation between black hole spin and star formation in massive star-forming galaxies [PDF]

arXiv
It has always been believed that feedback from active galactic nuclei (AGN) has an important impact on star formation in massive galaxies. Black hole spin is an important physical parameter of AGN. We use a large sample of massive star-forming galaxies to study the effects of AGN on star formation.
arxiv