Results 1 to 10 of about 1,062 (176)

BEACON: JWST NIRCam Pure-parallel Imaging Survey. IV. A Systematic Search for Galaxy Overdensities and Evidence for Gas Accretion Mode Transition

The Astrophysical Journal
We systematically search for galaxy overdensities using 20 independent fields with a minimum of six filters (F090W, F115W, F150W, F277W, F356W, and F444W) from BEACON, the JWST Cycle 2 NIRCam pure-parallel imaging survey.
Ryo Albert Sutanto, Takahiro Morishita, Tadayuki Kodama, Abdurro’uf, Larry D. Bradley, Andrew J. Bunker, Nima Chartab, Nuo Chen, Matthew J. Hayes, George Helou, Novan Saputra Haryana, Nicha Leethochawalit, Zhaoran Liu, Charlotte A. Mason, Marc Rafelski, Michael J. Rutkowski, Massimo Stiavelli, Kosuke Takahashi, Harry I. Teplitz, Michele Trenti, Tommaso Treu, Benedetta Vulcani, Yechi Zhang   +22 more
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The Heavy Metal Survey: The Evolution of Stellar Metallicities, Abundance Ratios, and Ages of Massive Quiescent Galaxies since z ∼ 2

The Astrophysical Journal
We present the elemental abundances and ages of 19 massive quiescent galaxies at z ∼ 1.4 and z ∼ 2.1 from the Keck Heavy Metal Survey. The ultradeep LRIS and MOSFIRE spectra were modeled using a full-spectrum stellar population fitting code with variable
Aliza G. Beverage, Mariska Kriek, Katherine A. Suess, Charlie Conroy, Sedona H. Price, Guillermo Barro, Rachel Bezanson, Marijn Franx, Brian Lorenz, Yilun Ma, Lamiya A. Mowla, Imad Pasha, Pieter van Dokkum, Daniel R. Weisz   +13 more
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Clues to inside-out quenching in quiescent galaxies at 1.2 ≲ z ≲ 2.2: Age, Fe-, and Mg-abundance gradients from JWST-SUSPENSE

Astronomy & Astrophysics
Spatially resolved stellar populations of massive quiescent galaxies at cosmic noon provide powerful insights into star-formation quenching and stellar mass assembly mechanisms.
Cheng Chloe M., Slob Martje, Kriek Mariska, Beverage Aliza G., Barro Guillermo, Bezanson Rachel, de Graaff Anna, Förster Schreiber Natascha M., Lorenz Brian, Marchesini Danilo, Martín-Navarro Ignacio, Muzzin Adam, Newman Andrew B., Price Sedona H., Suess Katherine A., van der Wel Arjen, van de Sande Jesse, van Dokkum Pieter G., Weisz Daniel R.   +18 more
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SDSS-C4 3028: the Nearest Blue Galaxy Cluster Devoid of an Intracluster Medium

The Open Journal of Astrophysics
SDSS-C4 3028 is a galaxy cluster at $z=0.061$, notable for its unusually high fraction of star-forming galaxies with 19 star-forming and 11 quiescent spectroscopically-confirmed member galaxies. From Subaru/HSC imaging, we derived a weak lensing mass of $
Shweta Jain, Yuanyuan Su, Andra Stroe, Paul Nulsen, Hyejeon Cho, Kim HyeongHan, M. James Jee, Ralph P. Kraft, Scott Randall, Jimmy A. Irwin, Ryan L. Sanders, Christine Jones   +11 more
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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
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A Massive Quiescent Galaxy in a Group Environment at z = 4.53

The Astrophysical Journal
We report on the spectroscopic confirmation of a massive quiescent galaxy at z _spec = 4.53 in the COSMOS field. The object was first identified as a galaxy with suppressed star formation at z _phot ∼ 4.65 from the COSMOS2020 catalog.
Takumi Kakimoto, Masayuki Tanaka, Masato Onodera, Rhythm Shimakawa, Po-Feng Wu, Katriona M. L. Gould, Kei Ito, Shuowen Jin, Mariko Kubo, Tomoko L. Suzuki, Sune Toft, Francesco Valentino, Kiyoto Yabe   +12 more
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Star formation quenching precedes morphological transformation in COSMOS-Web’s richest galaxy groups

Astronomy & Astrophysics
We analyzed the 25 richest galaxy groups in COSMOS-Web across the redshift range z = 0.18–3.65, identified using the Adaptive Matched Identifier of Clustered Objects (AMICO) algorithm.
Ghaffari Z., Gozaliasl G., Biviano A., Mamon G. A., Toni G., Taamoli S., Maturi M., Moscardini L., Zacchei A., Gentile F., Haas M., Akins H., Arango-Toro R. C., Cheng Y., Casey C., Franco M., Harish S., Hatamnia H., Ilbert O., Kartaltepe J., Khostovan A. A., Koekemoer A. M., Liu D., McCracken H. J., McKinney J., Rhodes J., Robertson B., Shuntov M., Yang L.   +28 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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Galaxy evolution in the post-merger regime. II -- Post-merger quenching peaks within 500 Myr of coalescence

The Open Journal of Astrophysics
Mechanisms for quenching star formation in galaxies remain hotly debated, with galaxy mergers an oft-proposed pathway. In Ellison et al. (2022) we tested this scenario by quantifying the fraction of recently and rapidly quenched post-starbursts (PSBs) in
Sara Ellison, Leonardo Ferreira, Vivienne Wild, Scott Wilkinson, Kate Rowlands, David R. Patton   +5 more
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The SAGA Survey. V. Modeling Satellite Systems around Milky Way–Mass Galaxies with Updated UniverseMachine

The Astrophysical Journal
Environment plays a critical role in shaping the assembly of low-mass galaxies. Here, we use the U niverse M achine (UM) galaxy–halo connection framework and Data Release 3 of the Satellites Around Galactic Analogs (SAGA) Survey to place dwarf galaxy ...
Yunchong Wang, Ethan O. Nadler, Yao-Yuan Mao, Risa H. Wechsler, Tom Abel, Peter Behroozi, Marla Geha, Yasmeen Asali, Mithi A. C. de los Reyes, Erin Kado-Fong, Nitya Kallivayalil, Erik J. Tollerud, Benjamin Weiner, John F. Wu   +13 more
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