Results 121 to 130 of about 1,030,336 (214)

Witnessing the Formation of a Brightest Cluster Galaxy in a Nearby X-Ray Cluster

, 2010
The central dominant galaxies in galaxy clusters constitute the most massive and luminous galaxies in the universe. Despite this, the formation of these brightest cluster galaxies (BCGs) and the impact of this on the surrounding cluster environment ...
Lei Bai, Raychaudhury, Somak, Rasmussen, J, Trevor J. Ponman, Ponman, Trevor, Jesper Rasmussen, Dariush, A, Somak Raychaudhury, Bai, L, Mulchaey, JS, John S. Mulchaey, Ali Dariush   +11 more
core   +1 more source

The Journey to Dominance: How Brightest Cluster Galaxies Evolve Differently from Other Massive Galaxies

The Astrophysical Journal
We use the L-GALAXIES semianalytic model to investigate the evolution of brightest cluster galaxies (BCGs) found in clusters at z  ∼ 0. BCGs are typically located in the central region of galaxy clusters, near the bottom of the potential well, exposing ...
Marcelo C. Vicentin, Michael A. Strauss, Laerte Sodré Jr., Robert M. Yates, Pablo Araya-Araya, Doris Stoppacher   +5 more
doaj   +1 more source

XRISM Reveals Low Nonthermal Pressure in the Core of the Hot, Relaxed Galaxy Cluster A2029

The Astrophysical Journal Letters
We present XRISM Resolve observations of the core of the hot, relaxed galaxy cluster Abell 2029 (A2029). We find that the line-of-sight bulk velocity of the intracluster medium (ICM) within the central 180 kpc is at rest with respect to the brightest ...
XRISM Collaboration, Marc Audard, Hisamitsu Awaki, Ralf Ballhausen, Aya Bamba, Ehud Behar, Rozenn Boissay-Malaquin, Laura Brenneman, Gregory V. Brown, Lia Corrales, Elisa Costantini, Renata Cumbee, Maria Diaz Trigo, Chris Done, Tadayasu Dotani, Ken Ebisawa, Megan E. Eckart, Dominique Eckert, Satoshi Eguchi, Teruaki Enoto, Yuichiro Ezoe, Adam Foster, Ryuichi Fujimoto, Yutaka Fujita, Yasushi Fukazawa, Kotaro Fukushima, Akihiro Furuzawa, Luigi Gallo, Javier A. García, Liyi Gu, Matteo Guainazzi, Kouichi Hagino, Kenji Hamaguchi, Isamu Hatsukade, Katsuhiro Hayashi, Takayuki Hayashi, Natalie Hell, Edmund Hodges-Kluck, Ann Hornschemeier, Yuto Ichinohe, Manabu Ishida, Kumi Ishikawa, Yoshitaka Ishisaki, Jelle Kaastra, Timothy Kallman, Erin Kara, Satoru Katsuda, Yoshiaki Kanemaru, Richard Kelley, Caroline Kilbourne, Shunji Kitamoto, Shogo Kobayashi, Takayoshi Kohmura, Aya Kubota, Maurice Leutenegger, Michael Loewenstein, Yoshitomo Maeda, Maxim Markevitch, Hironori Matsumoto, Kyoko Matsushita, Dan McCammon, Brian McNamara, François Mernier, Eric D. Miller, Jon M. Miller, Ikuyuki Mitsuishi, Misaki Mizumoto, Tsunefumi Mizuno, Koji Mori, Koji Mukai, Hiroshi Murakami, Richard Mushotzky, Hiroshi Nakajima, Kazuhiro Nakazawa, Jan-Uwe Ness, Kumiko Nobukawa, Masayoshi Nobukawa, Hirofumi Noda, Hirokazu Odaka, Shoji Ogawa, Anna Ogorzalek, Takashi Okajima, Naomi Ota, Stephane Paltani, Robert Petre, Paul Plucinsky, Frederick S. Porter, Katja Pottschmidt, Kosuke Sato, Toshiki Sato, Makoto Sawada, Hiromi Seta, Megumi Shidatsu, Aurora Simionescu, Randall Smith, Hiromasa Suzuki, Andrew Szymkowiak, Hiromitsu Takahashi, Mai Takeo, Toru Tamagawa, Keisuke Tamura, Takaaki Tanaka, Atsushi Tanimoto, Makoto Tashiro, Yukikatsu Terada, Yuichi Terashima, Yohko Tsuboi, Masahiro Tsujimoto, Hiroshi Tsunemi, Takeshi Tsuru, Hiroyuki Uchida, Nagomi Uchida, Yuusuke Uchida, Hideki Uchiyama, Yoshihiro Ueda, Shinichiro Uno, Jacco Vink, Shin Watanabe, Brian J. Williams, Satoshi Yamada, Shinya Yamada, Hiroya Yamaguchi, Kazutaka Yamaoka, Noriko Yamasaki, Makoto Yamauchi, Shigeo Yamauchi, Tahir Yaqoob, Tomokage Yoneyama, Tessei Yoshida, Mihoko Yukita, Irina Zhuravleva, Tommaso Bartalesi, Stefano Ettori, Roman Kosarzycki, Lorenzo Lovisari, Tom Rose, Arnab Sarkar, Ming Sun, Prathamesh Tamhane   +138 more
doaj   +1 more source

Evolution of the Brightest Cluster Galaxies [PDF]

, 2016
In this thesis, I explore the evolution of the brightest cluster galaxies (BCGs) over the last 10 billion years through detailed studies of both local BCGs from SDSS and their high-z progenitors from CANDELS UDS.\ud \ud First, I study a large sample of local BCGs and link their morphologies to their structural properties.
openaire   +1 more source

Star Formation, Nebulae, and Active Galactic Nuclei in CLASH Brightest Cluster Galaxies. I. Dependence on Core Entropy of Intracluster Medium

The Astrophysical Journal
We set the stage for reassessing how star formation, emission-line nebulae, and active galactic nuclei (AGNs) in brightest cluster galaxies (BCGs) depend on the thermodynamics of the intracluster medium (ICM).
Arsen Levitskiy, Jeremy Lim, Youichi Ohyama, Juno Li, Megan Donahue   +4 more
doaj   +1 more source

Feedback and brightest cluster galaxy formation: ACS observations of the radio galaxy TNJ J1338-1942 AT z=4.1

, 2005
We present deep optical imaging of the z 4: 1 radio galaxy TN J1338 - 1942, obtained using the Advanced Camera for Surveys ( ACS) on board the Hubble Space Telescope, as well as ground- based near- infrared imaging data from the European Southern ...
Infante L, Brown RA, Sparks WB, Golimowski DA, Lesser MP, Mei S, Kimble RA, Venemans B, Bartko F, Goto T, Holden B, Zheng W., Gronwall C, Postman M, Motta V, De Breuck C, Zirm AW, Miley GK, Bouwens RJ, Homeier N, Feldman PD, Blakeslee JP, Illingworth GD, Sirianni M, Rottgering HJA, Burrows CJ, Ardila DR, Overzier RA, Hartig GF, Franx M, Tran HD, Clampin M, Krist JE, Cross NJG, Bradley LD, ROSATI, Piero, Ford HC, Broadhurst TJ, Martel AR, Menanteau F, Cheng ES, Meurer GR, Tsvetanov ZI, Demarco R, White RL, Benitez NB   +45 more
core   +1 more source

Environmental Imprints on the Assembly of the Cool Gas around Bright Cluster Galaxies

The Astrophysical Journal Letters
Galaxy clusters represent extreme cosmic laboratories where environmental processes dramatically reshape their constituent galaxies, yet their effect on the gaseous halos of central galaxies remains poorly constrained.
Runyu Zhu, Hu Zou, Taotao Fang, Enci Wang, Zeyu Chen, Zhaobin Chen, Weiyu Ding, Jinfu Gou, Weijian Guo, Niu Li, Wenxiong Li, Shufei Liu, Haoming Song, Jipeng Sui, Xi Tan, Yunao Xiao, Jingyi Zhang   +16 more
doaj   +1 more source

Weak-lensing Characterization of the Dark Matter in 29 Merging Clusters that Exhibit Radio Relics

The Astrophysical Journal Supplement Series
We present a multiwavelength analysis of 29 merging galaxy clusters that exhibit radio relics. For each merging system, we perform a weak-lensing analysis on Subaru optical imaging.
Kyle Finner, M. James Jee, Hyejeon Cho, Kim HyeongHan, Wonki Lee, Reinout J. van Weeren, David Wittman, Mijin Yoon   +7 more
doaj   +1 more source

Warm and Cold Molecular Gas in the Cluster Center of MACS 1931−26 with JWST and ALMA

The Astrophysical Journal
We perform one of the first spatially resolved studies of warm (>100 K) and cold (10–100 K) molecular gas in the circumgalactic medium (CGM), focusing on the brightest cluster galaxy (BCG) of a cool-core galaxy cluster, MACS 1931−26, at z = 0.35.
L. Ghodsi, L. Kuhn, A. W. S. Man, P. Andreani, C. De Breuck, A. Togi, K. Dasyra, M. Lehnert, I. García-Bernete, D. Donevski, T. G. Bisbas, Y. Miyamoto   +11 more
doaj   +1 more source

A distinct radial acceleration relation across the brightest cluster galaxies and galaxy clusters

Astronomy & Astrophysics
Recent studies reveal a radial acceleration relation (RAR) in galaxies, which illustrates a tight empirical correlation connecting the observational acceleration and the baryonic acceleration with a characteristic acceleration scale. However, a distinct RAR has been revealed on brightest cluster galaxy (BCG) cluster scales with a seventeen-times-larger
Yong Tian, Chung-Ming Ko, Pengfei Li, Stacy McGaugh, Shemile L. Poblete   +4 more
openaire   +2 more sources