Constraining gas motion and non-thermal pressure beyond the core of the Abell 2029 galaxy cluster with XRISM

廿日出, 勇; ハツカデ, イサム; Hatsukade, Isamu; 森, 浩二; モリ, コウジ; Mori, Koji; 鈴木, 寛大; スズキ, ヒロマサ; Suzuki, Hiromasa; XRISM Collaboration

doi:https://doi.org/10.1093/pasj/psaf055

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Constraining gas motion and non-thermal pressure beyond the core of the Abell 2029 galaxy cluster with XRISM

http://hdl.handle.net/10458/0002001854

名前 / ファイル	ライセンス	アクション
fulltext (3.7 MB)

アイテムタイプ

学術雑誌論文 / Journal Article(1)

公開日

2025-10-22

タイトル

Constraining gas motion and non-thermal pressure beyond the core of the Abell 2029 galaxy cluster with XRISM

言語

eng

キーワード

言語

キーワード

cosmology: observations

キーワード

言語

キーワード

galaxies: clusters: individual (Abell 2029)

キーワード

言語

キーワード

intergalactic medium

キーワード

言語

キーワード

X-rays: galaxies: clusters

資源タイプ

journal article

アクセス権

open access

著者

廿日出, 勇

WEKO 35360
e-Rad_Researcher 30221500

ja	廿日出, 勇宮崎大学
ja-Kana	ハツカデ, イサム
en	Hatsukade, Isamu University of Miyazaki

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森, 浩二

WEKO 13827
e-Rad_Researcher 00404393

ja	森, 浩二宮崎大学
ja-Kana	モリ, コウジ
en	Mori, Koji University of Miyazaki

Search repository

鈴木, 寛大

WEKO 35601
e-Rad_Researcher 50915402

ja	鈴木, 寛大宮崎大学
ja-Kana	スズキ, ヒロマサ
en	Suzuki, Hiromasa University of Miyazaki

Search repository

XRISM Collaboration

抄録

内容記述タイプ

Abstract

内容記述

We report on a detailed spectroscopic study of the gas dynamics and hydrostatic mass bias of the galaxy cluster Abell 2029, utilizing high-resolution observations from XRISM Resolve. Abell 2029, known for its cool core and relaxed X-ray morphology, provides an excellent opportunity to investigate the influence of gas motions beyond the central region. Expanding upon prior studies that revealed low turbulence and bulk motions within the core, our analysis covers regions out to the scale radius (670 kpc) based on three radial pointings extending from the cluster center toward the northern side. We obtain accurate measurements of bulk and turbulent velocities along the line of sight. The results indicate that non-thermal pressure accounts for no more than 2% of the total pressure at all radii, with a gradual decrease outward. The observed radial trend differs from many numerical simulations, which often predict an increase in non-thermal pressure fraction at larger radii. These findings suggest that deviations from hydrostatic equilibrium are small, leading to a hydrostatic mass bias of around 2% across the observed area.

言語

内容記述

内容記述タイプ

Other

内容記述

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 Díaz 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 C 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, Daiki Ishi, 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 A Leutenegger, Michael Loewenstein, Yoshitomo Maeda, Maxim Markevitch, Hironori Matsumoto, Kyoko Matsushita, Dan McCammon, Brian McNamara, François Mernier, Eric 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 Go 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

言語

書誌情報

en : Publications of the Astronomical Society of Japan

巻 77, 号 Supplement_1, p. 242-253, 発行日 2025-08-18

出版者

Oxford University Press (OUP)

言語

ISSN

収録物識別子タイプ

EISSN

収録物識別子

2053051X

ISSN

収録物識別子タイプ

ISSN

収録物識別子

00046264

DOI

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2025-10-22 06:29:12.435235

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