Results 1 to 10 of about 86,475 (349)

The impact of lens galaxy environments on the image separation distribution [PDF]

, 2005
We study the impact of lens galaxy environments on the image separation distribution of lensed quasars. We account for both environmental convergence and shear, using a joint distribution derived from galaxy formation models calibrated by galaxy-galaxy ...
Masamune Oguri, Charles R. Keeton, Neal Dalal   +2 more
openalex   +5 more sources

Searching for Conformity Across Cosmic Time with Local Group and Local Volume Star Formation Histories

The Astrophysical Journal, 2023
Conformity denotes the correlation of properties between pairs of galaxies as a function of separation. Correlations between properties such as the star formation rate (SFR), stellar mass, and specific star formation rate (sSFR) have implications for the
Charlotte Olsen, Eric Gawiser
doaj   +1 more source

The Effect of Environment on the Properties of the Most Massive Galaxies at 0.5 < z < 2.5 in the COSMOS-DASH Field

The Astrophysical Journal, 2023
How the environment influences the most massive galaxies is still unclear. To explore the effects of the environment on morphology and star formation in the most massive galaxies at high redshift, we select galaxies with stellar mass $\mathrm{log}({M}_ ...
Jie Song, GuanWen Fang, Yizhou Gu, Zesen Lin, Xu Kong   +4 more
doaj   +1 more source

Fraction of Clumpy Star-forming Galaxies at 0.5 ≤ z ≤ 3 in UVCANDELS: Dependence on Stellar Mass and Environment

The Astrophysical Journal, 2023
High-resolution imaging of galaxies in rest-frame UV has revealed the existence of giant star-forming clumps prevalent in high-redshift galaxies. Studying these substructures provides important information about their formation and evolution and informs ...
Zahra Sattari, Bahram Mobasher, Nima Chartab, Daniel D. Kelson, Harry I. Teplitz, Marc Rafelski, Norman A. Grogin, Anton M. Koekemoer, Xin Wang, Rogier A. Windhorst, Anahita Alavi, Laura Prichard, Ben Sunnquist, Jonathan P. Gardner, Eric Gawiser, Nimish P. Hathi, Matthew J. Hayes, Zhiyuan Ji, Vihang Mehta, Brant E. Robertson, Claudia Scarlata, L. Y. Aaron Yung, Christopher J. Conselice, Y. Sophia Dai, Yicheng Guo, Ray A. Lucas, Alec Martin, Swara Ravindranath   +27 more
doaj   +1 more source

On the Effects of Local Environment on Active Galactic Nucleus (AGN) in the Horizon Run 5 Simulation

The Astrophysical Journal, 2023
We use the Horizon Run 5 cosmological simulation to study the effect of galaxy intrinsic properties and the local environment on active galactic nuclei (AGNs) characterized by their threshold of the accretion rate.
Ankit Singh, Changbom Park, Ena Choi, Juhan Kim, Hyunsung Jun, Brad K. Gibson, Yonghwi Kim, Jaehyun Lee, Owain Snaith   +8 more
doaj   +1 more source

The Roles of Morphology and Environment on the Star Formation Rate–Stellar Mass Relation in COSMOS from 0 < z < 3.5

The Astrophysical Journal, 2023
We investigate the relationship between environment, morphology, and the star formation rate (SFR)–stellar mass relation derived from a sample of star-forming (SF) galaxies (commonly referred to as the “star formation main sequence”, SFMS) in the COSMOS ...
Kevin C. Cooke, Jeyhan S. Kartaltepe, Caitlin Rose, K. D. Tyler, Behnam Darvish, Sarah K. Leslie, Ying-jie Peng, Boris Häußler, Anton M. Koekemoer   +8 more
doaj   +1 more source

A Gradual Decline of Star Formation since Cluster Infall: New Kinematic Insights into Environmental Quenching at 0.3 < z < 1.1

The Astrophysical Journal, 2023
The environments where galaxies reside crucially shape their star formation histories. We investigate a large sample of 1626 cluster galaxies located within 105 galaxy clusters spanning a large range in redshift (0.26 < z < 1.13). The galaxy clusters are
Keunho J. Kim, Matthew B. Bayliss, Allison G. Noble, Gourav Khullar, Ethan Cronk, Joshua Roberson, Behzad Ansarinejad, Lindsey E. Bleem, Benjamin Floyd, Sebastian Grandis, Guillaume Mahler, Michael A. McDonald, Christian L. Reichardt, Alexandro Saro, Keren Sharon, Taweewat Somboonpanyakul, Veronica Strazzullo   +16 more
doaj   +1 more source

Galaxy interactions II: High density environments [PDF]

, 2011
With the aim to assess the role of dense environments in galaxy interactions, properties we present an analysis of close galaxy pairs in groups and clusters, obtained from the Sloan Digital Sky Survey Data Release 7 (SDSS-DR7).
Abazajian, Abazajian, Alonso, Alonso, Alonso, Baldry, Baldry, Balogh, Balogh, Balogh, Barton, Berlind, Blanton, Brinchmann, Ceccarelli, Colless, Cooper, Cooper, Coziol, D. G. Lambas, Darg, De Lucia, Dressler, Ellison, González, González, Gunn, Heiderman, Hopkins, Hopkins, Huchra, Kauffmann, Kennicutt, Lacerna, Lambas, Lambas, Lin, Mamon, Mamon, McIntosh, Merchán, Michel-Dansac, Morgan, N. Padilla, Padilla, Padilla, Padilla, Park, Patton, Pérez, Robaina, S. Alonso, Simard, Skibba, Skibba, Strauss, V. Mesa, von der Linden, Wang, Wong, Yang, York, Zapata, Zibetti, Zwicky   +64 more
core   +1 more source

The DEEP3 Galaxy Redshift Survey: The Impact of Environment on the Size Evolution of Massive Early-type Galaxies at Intermediate Redshift [PDF]

, 2011
Using data drawn from the DEEP2 and DEEP3 Galaxy Redshift Surveys, we investigate the relationship between the environment and the structure of galaxies residing on the red sequence at intermediate redshift.
Coil, Alison L., Cooper, Michael C., Davis, Marc, Dutton, Aaron A., Faber, S. M., Griffith, Roger L., Guhathakurta, Puragra, Koo, David C., Lotz, Jennifer M., Newman, Jeffrey A., Weiner, Benjamin J., Willmer, Christopher N. A., Yan, Renbin   +12 more
core   +2 more sources

COSMOS2020: Discovery of a Protocluster of Massive Quiescent Galaxies at z = 2.77

The Astrophysical Journal Letters, 2023
Protoclusters of galaxies have been found in the last quarter-century. However, most of them have been found through the overdensity of star-forming galaxies, and there have been no known structures identified by more than two spectroscopically confirmed
Kei Ito, Masayuki Tanaka, Francesco Valentino, Sune Toft, Gabriel Brammer, Katriona M. L. Gould, Olivier Ilbert, Nobunari Kashikawa, Mariko Kubo, Yongming Liang, Henry J. McCracken, John R. Weaver   +11 more
doaj   +1 more source