Results 91 to 100 of about 1,048 (176)

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
doaj   +1 more source

Astrophysical black holes: An explanation for the galaxy quenching

Journal of High Energy Astrophysics
In light of increasing observational evidence supporting the existence of ultra-compact objects, we adopt the term astrophysical black hole to refer to any object having a huge mass confined within a sufficiently small region of spacetime. This terminology encompasses both the classical black hole solutions predicted by general relativity, as well as ...
Jay Verma Trivedi, Pankaj S. Joshi, Gopal Krishna, Peter L. Biermann   +3 more
openaire   +2 more sources

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
doaj   +1 more source

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
doaj   +1 more source

Exploring Lenticular Galaxy Formation in Field Environments Using NewHorizon: Evidence for Counterrotating Gas Accretion as a Formation Channel

The Astrophysical Journal
The formation pathways of lenticular galaxies (S0s) in field environments remain a matter of debate. We utilize the cosmological hydrodynamic simulation, NewHorizon , to investigate the issue. We select two massive star formation quenched S0s as our main
Seongbong Han, J. K. Jang, Emanuele Contini, Yohan Dubois, Seyoung Jeon, Sugata Kaviraj, Taysun Kimm, Katarina Kraljic, Sree Oh, Sébastien Peirani, Christophe Pichon, Sukyoung K. Yi   +11 more
doaj   +1 more source

The Structure and Formation Histories of Low-mass Quiescent Galaxies in the A2744 Cluster Environment

The Astrophysical Journal
Low-mass quiescent galaxies are thought to predominantly reside in overdense regions, as environmental effects are often invoked to explain their shutdown of star formation. These longer-timescale quenching mechanisms—such as interactions with hot gas in
Sam E. Cutler, John R. Weaver, Katherine E. Whitaker, Jenny E. Greene, David J. Setton, Zach J. Webb, Ayesha Abdullah, Aubrey Medrano, Rachel Bezanson, Gabriel Brammer, Robert Feldmann, Lukas J. Furtak, Karl Glazebrook, Ivo Labbe, Joel Leja, Danilo Marchesini, Tim B. Miller, Ikki Mitsuhashi, Themiya Nanayakkara, Erica J. Nelson, Richard Pan, Sedona H. Price, Katherine A. Suess, Bingjie Wang   +23 more
doaj   +1 more source

Cluster-green galaxy correlations: Where do these galaxies live?

Astronomy & Astrophysics
Context. Green valley (GV) galaxies are thought to represent a transitional population between star-forming and quiescent systems. However, their spatial distribution relative to galaxy systems, such as galaxy groups and clusters, remains unclear ...
Levis Selene, Rodriguez Facundo, Martínez Héctor J., Coenda Valeria, Muriel Hernán   +4 more
doaj   +1 more source

ISEV2026 Abstract Book

Journal of Extracellular Vesicles, Volume 15, Issue S1, June 2026.
wiley   +1 more source

Searching within Galaxies for the Earliest Signs of Quenching With Spatially Resolved Star Formation Histories in UVCANDELS Galaxies at z < 0.3

The Astrophysical Journal
Understanding the complicated processes that regulate star formation and cause a galaxy to become quiescent is key to our comprehension of galaxy evolution.
Charlotte Olsen, Eric Gawiser, Charlotte Welker, Harry Teplitz, Kartheik Iyer, Xin Wang, Marc Rafelski, Rogier A. Windhorst, Anton Koekemoer, Anahita Alavi, Ben Sunnquist, Norman Grogin, Yicheng Guo, Christopher J. Conselice, L. Y. Aaron Yung, Kalina Nedkova, Bahram Mobasher, Ray A. Lucas, Vihang Mehta, Y. Sophia Dai, Jonathan P. Gardner   +20 more
doaj   +1 more source

A massive quiescent galaxy at redshift 4.658. [PDF]

Nature, 2023
Carnall AC, McLure RJ, Dunlop JS, McLeod DJ, Wild V, Cullen F, Magee D, Begley R, Cimatti A, Donnan CT, Hamadouche ML, Jewell SM, Walker S.   +12 more
europepmc   +1 more source