Results 51 to 60 of about 2,230 (139)

The three-dimensional shapes of the galaxy cluster intracluster medium in eRASS1

Astronomy & Astrophysics
Aims. The three-dimensional shapes of clusters are important for understanding the astrophysics of the clusters and as a probe in cosmological studies. Methods. We estimate the most probable three-dimensional shape of galaxy clusters in the first eROSITA
Kulkarni S., Sanders J. S., Bulbul E., Liu A., Ramos-Ceja M. E.   +4 more
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The Seeding of Cosmic Ray Electrons by Cluster Radio Galaxies: A Review

Galaxies
Radio galaxies in clusters of galaxies are a prominent reservoir of magnetic fields and of non-thermal particles, which become mixed with the intracluster medium.
Franco Vazza, Andrea Botteon
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Editorial: Thermal imbalance and multiphase plasmas across scales: from the solar corona to the intracluster medium

Frontiers in Astronomy and Space Sciences, 2023
Dmitrii Y. Kolotkov, Patrick Antolin, Prateek Sharma   +2 more
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Merger Shocks Enhance Quenching in Local Galaxy Clusters

The Astrophysical Journal
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.
Ian D. Roberts
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Investigating the Intracluster Medium Viscosity Using the Tails of GASP Jellyfish Galaxies

The Astrophysical Journal
The microphysics of the intracluster medium (ICM) in galaxy clusters is still poorly understood. Observational evidence suggests that the effective viscosity is suppressed by plasma instabilities that reduce the mean free path of particles. Measuring the
Alessandro Ignesti, Gianfranco Brunetti, Marco Gullieuszik, Nina Akerman, Antonino Marasco, Bianca M. Poggianti, Yuan Li, Benedetta Vulcani, Myriam Gitti, Alessia Moretti, Eric Giunchi, Neven Tomičić, Cecilia Bacchini, Rosita Paladino, Mario Radovich, Anna Wolter   +15 more
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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
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Intensity Fluctuations of Radio Halos in Galaxy Clusters: Insights from Power Spectrum Estimation

The Astrophysical Journal
Nonthermal synchrotron emissions from radio halos allow us to study mechanisms of particle (re)acceleration, magnetic field distribution, merger history, and turbulence in the intracluster medium.
Srijita Pal, Nirupam Roy, Sameer Salunkhe, Surajit Paul, Tanu Sharma, Samir Choudhuri   +5 more
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The eROSITA Final Equatorial-Depth Survey (eFEDS)

Astronomy & Astrophysics
Context. This is the second paper in a series exploring the X-ray properties of galaxy clusters optically selected by the Subaru Hyper Suprime-Cam (HSC) survey, using data from the SRG/eROSITA Final Equatorial-Depth Survey (eFEDS). Aims.
Nguyen-Dang N. T., Ota N., Okabe N., Oguri M., Mitsuishi I., Reiprich T. H., Pacaud F., Bulbul E., Sanders J. S., Brüggen M., Liu A., Tsujita Y., Chiu I., Ghirardini V., Grandis S., Klein M., Migkas K., Miyatake H., Miyazaki S., Ramos-Ceja M. E.   +19 more
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A Deep Redshift Survey of the Perseus Cluster (A426): Spatial Distribution and Kinematics of Galaxies

The Astrophysical Journal Supplement Series
We study the global kinematics of the Perseus galaxy cluster (A426) at redshift z = 0.017 using a large sample of galaxies from our new MMT/Hectospec spectroscopic observation for this cluster.
Wooseok Kang, Ho Seong Hwang, Hyunmi Song, Changbom Park, Narae Hwang, Byeong-Gon Park   +5 more
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XRISM Observations of the Prototypical Cold Front in A3667

The Astrophysical Journal Letters
We present high-resolution X-ray spectroscopy of the merging galaxy cluster A3667 with XRISM/Resolve. Two observations, targeting the cluster X-ray core and the prototypical cold front, were performed with exposures of 105 and 276 ks, respectively.
Yuki Omiya, Yuto Ichinohe, Kazuhiro Nakazawa, Hisamitsu Awaki, Dominique Eckert, Yutaka Fujita, Isamu Hatsukade, Maxim Markevitch, François Mernier, Ikuyuki Mitsuishi, Naomi Ota, Aurora Simionescu, Yuusuke Uchida, Shutaro Ueda, Irina Zhuravleva, John Zuhone   +15 more
doaj   +1 more source