Results 151 to 160 of about 497,560 (237)

Galaxy Quenching and Assembly: A Review

, 2019
A review of observational and theoretical constraints on galaxy assembly and quenching.
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The Role of Gas Stripping in the Quenching of Satellite Galaxies Using SHARK v2.0

The Astrophysical Journal
Observational studies have made substantial progress in characterizing quenching as a function of galaxy stellar mass and environment, but they are often limited in their ability to constrain quenching timescales and to determine the dominant ...
Megan K. Oxland, Matías Bravo, Laura C. Parker, Claudia Del P. Lagos   +3 more
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Can Supernovae Quench Star Formation in High-z Galaxies?

The Astrophysical Journal
JWST is providing a unique opportunity to directly study the feedback processes regulating star formation (SF) in early galaxies. The two z > 5 quiescent systems (JADES-GS-z7-01-QU and MACS0417-z5BBG) detected so far show a recent starburst after which ...
Viola Gelli, Stefania Salvadori, Andrea Ferrara, Andrea Pallottini   +3 more
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A Quenched and Relatively Isolated Dwarf Galaxy in the Local Volume

The Astrophysical Journal
An increasing number of discoveries of isolated and quenched dwarf galaxies are challenging the idea that the present-day local environment of low-mass systems is the main determinant of their quenching.
Tehreem N. Hai, Kristen B. W. McQuinn, Yao-Yuan Mao, Roger E. Cohen, David Shih, Erik Tollerud, Joseph A. Breneman, Andrew E. Dolphin, Max J. B. Newman, Adam Smercina   +9 more
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Quenching of galaxies at cosmic noon

Astronomy & Astrophysics
Context. We identified and analysed massive quiescent galaxies (MQGs) at z ≈ 3.1 within the 2 deg2 COSMOS field and explored the effect of the galaxy environment on quenching processes. By examining the variation in the quenched fraction and physical properties of these galaxies in different environmental contexts, including local densities ...
Akriti Singh, Lucia Guaita, Pascale Hibon, Boris Häußler, Kyoung-Soo Lee, Vandana Ramakrishnan, Ankit Kumar, Nelson Padilla, Nicole M. Firestone, Hyunmi Song, Maria Celeste Artale, Ho Seong Hwang, Paulina Troncoso Iribarren, Caryl Gronwall, Eric Gawiser, Julie Nantais, Francisco Valdes, Changbom Park, Yujin Yang   +18 more
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Discovery and Characterization of Two Ultrafaint Dwarfs outside the Halo of the Milky Way: Leo M and Leo K

The Astrophysical Journal
We report the discovery of two ultrafaint dwarf galaxies, Leo M and Leo K, that lie outside the halo of the Milky Way (MW). Using Hubble Space Telescope imaging of the resolved stars, we create color–magnitude diagrams reaching the oldest main-sequence ...
Kristen. B. W. McQuinn, Yao-Yuan Mao, Erik J. Tollerud, Roger E. Cohen, David Shih, Matthew R. Buckley, Andrew E. Dolphin   +6 more
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Efficient NIRCam Selection of Quiescent Galaxies at 3 < z < 6 in CEERS

The Astrophysical Journal
Substantial populations of massive quiescent galaxies at z ≥ 3 challenge our understanding of rapid galaxy growth and quenching over short timescales.
Arianna S. Long, Jacqueline Antwi-Danso, Erini L. Lambrides, Christopher C. Lovell, Alexander de la Vega, Francesco Valentino, Jorge A. Zavala, Caitlin M. Casey, Stephen M. Wilkins, L. Y. Aaron Yung, Pablo Arrabal Haro, Micaela B. Bagley, Laura Bisigello, Katherine Chworowsky, M. C. Cooper, Olivia R. Cooper, Asantha R. Cooray, Darren Croton, Mark Dickinson, Steven L. Finkelstein, Maximilien Franco, Katriona M. L. Gould, Michaela Hirschmann, Taylor A. Hutchison, Jeyhan S. Kartaltepe, Dale D. Kocevski, Anton M. Koekemoer, Ray A. Lucas, Jed McKinney, Rachel Nere, Casey Papovich, Pablo G. Pérez-González, Nor Pirzkal, Paola Santini   +33 more
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Merger Shocks Enhance Quenching in Local Galaxy Clusters

The Astrophysical Journal
Abstract We report evidence for enhanced quenching in low-redshift galaxy clusters hosting radio relics. This effect is strongest for low-mass galaxies and is consistent with a rapid quenching of star formation. These results imply that merger shocks in the intracluster medium play a role in driving environmental quenching, which we ...
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Stellar Mass Assembly History of Massive Quiescent Galaxies since z ∼ 4: Insights from Spatially Resolved Spectral Energy Distribution Fitting with JWST Data

The Astrophysical Journal
Massive quiescent galaxies at high redshift show significantly more compact morphology than their local counterparts. To examine their internal structure across a wide redshift range and investigate potential redshift dependence, we performed spatially ...
Novan Saputra Haryana, Masayuki Akiyama, Abdurro’uf, Hesti Retno Tri Wulandari, Juan Pablo Alfonzo, Kianhong Lee, Naoki Matsumoto, Ryo Albert Sutanto, Muhammad Nur Ihsan Effendi, Itsna Khoirul Fitriana, Ibnu Nurul Huda, Anton Timur Jaelani, Sultan Hadi Kusuma, Lucky Puspitarini, Dian P. Triani   +14 more
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SQuIGG E: Observational Evidence of Low Ongoing Star Formation Rates in Gas-rich Post-starburst Galaxies

The Astrophysical Journal
Atacama Large Millimeter/submillimeter Array observations have shown that candidate “post-starburst” galaxies (PSBs) at z  ∼ 0.6 can retain significant molecular gas reservoirs.
Pengpei Zhu, Katherine A. Suess, Mariska Kriek, David J. Setton, Rachel Bezanson, Vincenzo Donofrio, Robert Feldmann, Andy D. Goulding, Jenny E. Greene, Desika Narayanan, Justin Spilker   +10 more
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