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Atomic data and spectral modeling constraints from high-resolution X-ray observations of the Perseus cluster with Hitomi*

Collaboration, Hitomi; Aharonian, Felix; Akamatsu, Hiroki; Akimoto, Fumie; Allen, Steven W; Angelini, Lorella; Audard, Marc; Awaki, Hisamitsu; Axelsson, Magnus; Bamba, Aya; Bautz, Marshall W; Blandford, Roger; Brenneman, Laura W; Brown, Gregory V; Bulbul, Esra; Cackett, Edward M; Chernyakova, Maria; Chiao, Meng P; Coppi, Paolo S; Costantini, Elisa; de Plaa, Jelle; de Vries, Cor P; den Herder, Jan-Willem; Done, Chris; Dotani, Tadayasu; Ebisawa, Ken; Eckart, Megan E; Enoto, Teruaki; Ezoe, Yuichiro; Fabian, Andrew C; Ferrigno, Carlo; Foster, Adam R; Fujimoto, Ryuichi; Fukazawa, Yasushi; Furuzawa, Akihiro; Galeazzi, Massimiliano; Gallo, Luigi C; Gandhi, Poshak; Giustini, Margherita; Goldwurm, Andrea; Gu, Liyi; Guainazzi, Matteo; Haba, Yoshito; Hagino, Kouichi; Hamaguchi, Kenji; Harrus, Ilana M; Hatsukade, Isamu; Hayashi, Katsuhiro; Hayashi, Takayuki; Hayashida, Kiyoshi; Hell, Natalie; Hiraga, Junko S; Hornschemeier, Ann; Hoshino, Akio; Hughes, John P; Ichinohe, Yuto; Iizuka, Ryo; Inoue, Ha...

Atomic data and spectral modeling constraints from high-resolution X-ray observations of the Perseus cluster with Hitomi* Thumbnail


Authors

Hitomi Collaboration

Felix Aharonian

Hiroki Akamatsu

Fumie Akimoto

Steven W Allen

Lorella Angelini

Marc Audard

Hisamitsu Awaki

Magnus Axelsson

Aya Bamba

Marshall W Bautz

Roger Blandford

Laura W Brenneman

Gregory V Brown

Esra Bulbul

Edward M Cackett

Maria Chernyakova

Meng P Chiao

Paolo S Coppi

Elisa Costantini

Jelle de Plaa

Cor P de Vries

Jan-Willem den Herder

Tadayasu Dotani

Ken Ebisawa

Megan E Eckart

Teruaki Enoto

Yuichiro Ezoe

Andrew C Fabian

Carlo Ferrigno

Adam R Foster

Ryuichi Fujimoto

Yasushi Fukazawa

Akihiro Furuzawa

Massimiliano Galeazzi

Luigi C Gallo

Poshak Gandhi

Margherita Giustini

Andrea Goldwurm

Liyi Gu

Matteo Guainazzi

Yoshito Haba

Kouichi Hagino

Kenji Hamaguchi

Ilana M Harrus

Isamu Hatsukade

Katsuhiro Hayashi

Takayuki Hayashi

Kiyoshi Hayashida

Natalie Hell

Junko S Hiraga

Ann Hornschemeier

Akio Hoshino

John P Hughes

Yuto Ichinohe

Ryo Iizuka

Hajime Inoue

Yoshiyuki Inoue

Manabu Ishida

Kumi Ishikawa

Yoshitaka Ishisaki

Masachika Iwai

Jelle Kaastra

Tim Kallman

Tsuneyoshi Kamae

Jun Kataoka

Satoru Katsuda

Nobuyuki Kawai

Richard L Kelley

Caroline A Kilbourne

Takao Kitaguchi

Shunji Kitamoto

Tetsu Kitayama

Takayoshi Kohmura

Motohide Kokubun

Katsuji Koyama

Shu Koyama

Peter Kretschmar

Hans A Krimm

Aya Kubota

Hideyo Kunieda

Philippe Laurent

Shiu-Hang Lee

Maurice A Leutenegger

Olivier Limousin

Michael Loewenstein

Knox S Long

David Lumb

Greg Madejski

Yoshitomo Maeda

Daniel Maier

Kazuo Makishima

Maxim Markevitch

Hironori Matsumoto

Kyoko Matsushita

Dan McCammon

Brian R McNamara

Missagh Mehdipour

Eric D Miller

Jon M Miller

Shin Mineshige

Kazuhisa Mitsuda

Ikuyuki Mitsuishi

Takuya Miyazawa

Tsunefumi Mizuno

Hideyuki Mori

Koji Mori

Koji Mukai

Hiroshi Murakami

Richard F Mushotzky

Takao Nakagawa

Hiroshi Nakajima

Takeshi Nakamori

Shinya Nakashima

Kazuhiro Nakazawa

Kumiko K Nobukawa

Masayoshi Nobukawa

Hirofumi Noda

Hirokazu Odaka

Takaya Ohashi

Masanori Ohno

Takashi Okajima

Naomi Ota

Masanobu Ozaki

Frits Paerels

Stéphane Paltani

Robert Petre

Ciro Pinto

Frederick S Porter

Katja Pottschmidt

Christopher S Reynolds

Samar Safi-Harb

Shinya Saito

Kazuhiro Sakai

Toru Sasaki

Goro Sato

Kosuke Sato

Rie Sato

Makoto Sawada

Norbert Schartel

Peter J Serlemtsos

Hiromi Seta

Megumi Shidatsu

Aurora Simionescu

Randall K Smith

Yang Soong

Łukasz Stawarz

Yasuharu Sugawara

Satoshi Sugita

Andrew Szymkowiak

Hiroyasu Tajima

Hiromitsu Takahashi

Tadayuki Takahashi

Shin’ichiro Takeda

Yoh Takei

Toru Tamagawa

Takayuki Tamura

Takaaki Tanaka

Yasuo Tanaka

Yasuyuki T Tanaka

Makoto S Tashiro

Yuzuru Tawara

Yukikatsu Terada

Yuichi Terashima

Francesco Tombesi

Hiroshi Tomida

Yohko Tsuboi

Masahiro Tsujimoto

Hiroshi Tsunemi

Takeshi Go Tsuru

Hiroyuki Uchida

Hideki Uchiyama

Yasunobu Uchiyama

Shutaro Ueda

Yoshihiro Ueda

Shin’ichiro Uno

C Megan Urry

Eugenio Ursino

Shin Watanabe

Norbert Werner

Dan R Wilkins

Brian J Williams

Shinya Yamada

Hiroya Yamaguchi

Kazutaka Yamaoka

Noriko Y Yamasaki

Makoto Yamauchi

Shigeo Yamauchi

Tahir Yaqoob

Yoichi Yatsu

Daisuke Yonetoku

Irina Zhuravleva

Abderahmen Zoghbi

AJJ Raassen



Abstract

The Hitomi Soft X-ray Spectrometer spectrum of the Perseus cluster, with ∼5 eV resolution in the 2–9 keV band, offers an unprecedented benchmark of the atomic modeling and database for hot collisional plasmas. It reveals both successes and challenges of the current atomic data and models. The latest versions of AtomDB/APEC (3.0.8), SPEX (3.03.00), and CHIANTI (8.0) all provide reasonable fits to the broad-band spectrum, and are in close agreement on best-fit temperature, emission measure, and abundances of a few elements such as Ni. For the Fe abundance, the APEC and SPEX measurements differ by 16%, which is 17 times higher than the statistical uncertainty. This is mostly attributed to the differences in adopted collisional excitation and dielectronic recombination rates of the strongest emission lines. We further investigate and compare the sensitivity of the derived physical parameters to the astrophysical source modeling and instrumental effects. The Hitomi results show that accurate atomic data and models are as important as the astrophysical modeling and instrumental calibration aspects. Substantial updates of atomic databases and targeted laboratory measurements are needed to get the current data and models ready for the data from the next Hitomi-level mission.

Citation

Collaboration, H., Aharonian, F., Akamatsu, H., Akimoto, F., Allen, S. W., Angelini, L., …Raassen, A. (2018). Atomic data and spectral modeling constraints from high-resolution X-ray observations of the Perseus cluster with Hitomi*. Publications of Astronomical Society of Japan, 70(2), Article 12. https://doi.org/10.1093/pasj/psx156

Journal Article Type Article
Acceptance Date Dec 13, 2017
Online Publication Date Apr 11, 2018
Publication Date Apr 11, 2018
Deposit Date May 31, 2018
Publicly Available Date Mar 28, 2024
Journal Publications of Astronomical Society of Japan
Print ISSN 0004-6264
Electronic ISSN 2053-051X
Publisher Oxford University Press
Peer Reviewed Peer Reviewed
Volume 70
Issue 2
Article Number 12
DOI https://doi.org/10.1093/pasj/psx156

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Copyright Statement
© The Author 2018. Published by Oxford University Press on behalf of The Scots Philosophical Association and the University of St Andrews.
This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted reuse, distribution, and reproduction in any medium, provided the original work is properly cited.





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