Results 141 to 150 of about 49,283 (254)

Discovery of Diffuse Radio Emission in a Massive z = 1.709 Cool Core Cluster: A Candidate Radio Minihalo

The Astrophysical Journal Letters
Clusters of galaxies host spectacular diffuse radio sources, extending over scales from 100 kpc to several Mpcs. These sources, with extremely faint surface brightness ( μ Jy/arcsec ^2 level), are not tied to individual galaxies but trace synchrotron ...
Julie HLavacek-Larrondo, Roland Timmerman, Christoph Pfrommer, Erik Osinga, Larissa Tevlin, Tracy M. A. Webb, Natalia Martorella, Xiaoyuan Zhang, Reinout van Weeren, Hyunseop Choi, Gabriella Di Gennaro, Marie-Lou Gendron-Marsolais, Carter Rhea   +12 more
doaj   +1 more source

The SRG/eROSITA All-Sky Survey $J$-Band Follow-Up Observations for Selected High-Redshift Galaxy Cluster Candidates [PDF]

N. Zimmermann, Matthias Kluge, S. Grandis, T. Schrabback, Frank Balzer, E. Bulbul, Johan Comparat, B. Csizi, V. Ghirardini, H. Jansen, F. Kleinebreil, A. Liu, A. Merloni, M. E. Ramos-Ceja, J. S. Sanders, Xiaoyuan Zhang, P. Aschenbrenner, F. Enescu, S. Keiler, Manfred J. Mark, M. Rinner, Pierre Schweitzer, E. Silvestre-Rosello, L. Stepman   +23 more
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Cluster Candidates with Massive Quiescent Galaxies at z ∼ 2

The Astrophysical Journal
Galaxy clusters are crucial to understanding the role of the environment in galaxy evolution. However, due to their rarity, only a limited number of clusters have been identified at z  ≳ 2. In this paper, we report a discovery of seven cluster candidates
Tomokazu Kiyota, Makoto Ando, Masayuki Tanaka, Alexis Finoguenov, Sadman Shariar Ali, Jean Coupon, Guillaume Desprez, Stephen Gwyn, Marcin Sawicki, Rhythm Shimakawa   +9 more
doaj   +1 more source

Ram‐Pressure Stripping of Galaxies in High‐Redshift Clusters and the Influence of Intracluster Medium Heating [PDF]

, 2001
Yutaka Fujita
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The Photometric Analysis of the Environment Around Two Dusty Star-forming Galaxies at z ∼ 2

The Astrophysical Journal
Studying the environments of dusty star-forming galaxies (DSFGs) provides insight into whether these luminous systems are reliable signposts of large-scale overdensities.
Joe Bhangal, Allison W. S. Man, Tom J. L. C. Bakx, Darko Donevski, Pierre Cox, Helmut Dannerbauer, Stephen Serjeant, Masato Hagimoto, Pluto Jiang, Wenxiao Liu   +9 more
doaj   +1 more source

Constraining ${Ω_{0}}$ from X-ray properties of Clusters of Galaxies at high redshift [PDF]

, 1997
R. Sadat, Alain Blanchard, J. Oukbir
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LAE Galaxies at High Redshift: Formation Sites for Low-Metal Globular Clusters [PDF]

, 2012
Bruce G. Elmegreen, Sangeeta Malhotra, James E. Rhoads   +2 more
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Identification of Galaxy Protoclusters Based on the Spherical Top-hat Collapse Theory

The Astrophysical Journal
We propose a new method for finding galaxy protoclusters that is motivated by structure formation theory and also directly applicable to observations. We adopt the conventional definition that a protocluster is a galaxy group whose virial mass M _vir < M
Jaehyun Lee, Changbom Park, Juhan Kim, Christophe Pichon, Brad K. Gibson, Jihye Shin, Yonghwi Kim, Owain N. Snaith, Yohan Dubois, C. Gareth Few   +9 more
doaj   +1 more source

JWST Photometry of Globular Cluster Populations in MACS0417.5−1154

The Astrophysical Journal
Deep JWST imaging of the massive galaxy cluster MACS0417.5−1154, at redshift z = 0.443, reveals a huge population of globular clusters (GCs) and ultracompact dwarfs (UCDs) primarily distributed around its single central giant brightest cluster galaxy ...
William E. Harris, Marta Reina-Campos, Kaitlyn E. Keatley, Maruša Bradač, Nicholas S. Martis, Adam Muzzin, Gaël Noirot, Ghassan T. E. Sarrouh, Marcin Sawicki, Chris J. Willott, Samantha C. Berek   +10 more
doaj   +1 more source

A Study of Nine High-Redshift Clusters of Galaxies. IV. Photometry and Spectra of Clusters 1324+3011 and 1604+4321 [PDF]

, 2001
Marc Postman, L. M. Lubin, J. B. Oke
openalex   +1 more source