Hitomi Constraints on the 3.5 keV Line in the Perseus Galaxy Cluster

F. A Aharonian; H Akamatsu; F Akimoto; S. W Allen; L Angelini; K. A Arnaud; M Audard; H Awaki; M Axelsson; A Bamba; M. W Bautz; R. D Blandford; E Bulbul; L. W Brenneman; G. V Brown; E. M Cackett; M Chernyakova; M. P Chiao; P Coppi; E Costantini; J. de Plaa; J.-W. den Herder; C Done; T Dotani; K Ebisawa; M. E Eckart; T Enoto; Y Ezoe; A. C Fabian; C Ferrigno; A. R Foster; R Fujimoto; Y Fukazawa; A Furuzawa; M Galeazzi; L. C Gallo; P Gandhi; M Giustini; A Goldwurm; L Gu; M Guainazzi; Y Haba; K Hagino; K Hamaguchi; I Harrus; I Hatsukade; K Hayashi; T Hayashi; K Hayashida; J Hiraga; A. E Hornschemeier; A Hoshino; J. P Hughes; Y Ichinohe; R Iizuka; H Inoue; S Inoue; Y Inoue; K Ishibashi; M Ishida; K Ishikawa; Y Ishisaki; M Itoh; M Iwai; N Iyomoto; J. S Kaastra; T Kallman; T Kamae; E Kara; J Kataoka; S Katsuda; J Katsuta; M Kawaharada; N Kawai; R. L Kelley; D Khangulyan; C. A Kilbourne; A. L King; T Kitaguchi; S Kitamoto; T Kitayama; T Kohmura; M Kokubun; S Koyama; K Koyama; P Kretschmar; H. A Krimm; A Kubota; H Kunieda; P Laurent; F Lebrun; S.-H Lee; M. A Leutenegger; O Limousin; M Loewenstein; K. S Long; D. H Lumb; G. M Madejski; Y Maeda; D Maier; K Makishima; M Markevitch; H Matsumoto; K Matsushita; D McCammon; B. R McNamara; M Mehdipour; E. D Miller; J. M Miller; S Mineshige; K Mitsuda; I Mitsuishi; T Miyazawa; T Mizuno; H Mori; K Mori; H Moseley; K Mukai; H Murakami; T Murakami; R. F Mushotzky; T Nakagawa; H Nakajima; T Nakamori; T Nakano; S Nakashima; K Nakazawa; K Nobukawa; M Nobukawa; H Noda; M Nomachi; S. L. O’ Dell; H Odaka; T Ohashi; M Ohno; T Okajima; N Ota; M Ozaki; F Paerels; S Paltani; A Parmar; R Petre; C Pinto; M Pohl; F. S Porter; K Pottschmidt; B. D Ramsey; C. S Reynolds; H. R Russell; S Safi-Harb; S Saito; K Sakai; H Sameshima; T Sasaki; G Sato; K Sato; R Sato; M Sawada; N Schartel; P. J Serlemitsos; H Seta; M Shidatsu; A Simionescu; R. K Smith; Y Soong; Ł Stawarz; Y Sugawara; S Sugita; A. E Szymkowiak; H Tajima; H Takahashi; T Takahashi; S Takeda; Y Takei; T Tamagawa; K Tamura; T Tamura; T Tanaka; Yasuo Tanaka; Yasuyuki Tanaka; M Tashiro; Y Tawara; Y Terada; Y Terashima; F Tombesi; H Tomida; Y Tsuboi; M Tsujimoto; H Tsunemi; T Tsuru; H Uchida; H Uchiyama; Y Uchiyama; S Ueda; Y Ueda; S Ueno; S Uno; C. M Urry; E Ursino; C. P. de Vries; S Watanabe; N Werner; D. R Wik; D. R Wilkins; B. J Williams; S Yamada; H Yamaguchi; K Yamaoka; N. Y Yamasaki; M Yamauchi; S Yamauchi; T Yaqoob; Y Yatsu; D Yonetoku; A Yoshida; I Zhuravleva; A Zoghbi; Hitomi Collaboration

doi:10.3847/2041-8213/aa61fa

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Hitomi Constraints on the 3.5 keV Line in the Perseus Galaxy Cluster

Journal article

Open access

Hitomi Constraints on the 3.5 keV Line in the Perseus Galaxy Cluster

F. A Aharonian, H Akamatsu, F Akimoto, S. W Allen, L Angelini, K. A Arnaud, M Audard, H Awaki, M Axelsson, A Bamba, …

Astrophysical Journal Letters, Vol.837(1), p.L15

2017-03-01

DOI: https://doi.org/10.3847/2041-8213/aa61fa

Abstract

© 2017. The American Astronomical Society. All rights reserved. High-resolution X-ray spectroscopy with Hitomi was expected to resolve the origin of the faint unidentified E ≈ 3.5 keV emission line reported in several low-resolution studies of various massive systems, such as galaxies and clusters, including the Perseus cluster. We have analyzed the Hitomi first-light observation of the Perseus cluster. The emission line expected for Perseus based on the XMM-Newton signal from the large cluster sample under the dark matter decay scenario is too faint to be detectable in the Hitomi data. However, the previously reported 3.5 keV flux from Perseus was anomalously high compared to the sample-based prediction. We find no unidentified line at the reported high flux level. Taking into account the XMM measurement uncertainties for this region, the inconsistency with Hitomi is at a 99% significance for a broad dark matter line and at 99.7% for a narrow line from the gas. We do not find anomalously high fluxes of the nearby faint K line or the Ar satellite line that were proposed as explanations for the earlier 3.5 keV detections. We do find a hint of a broad excess near the energies of high-n transitions of S xvi (E ≃ 3.44 keV rest-frame) - a possible signature of charge exchange in the molecular nebula and another proposed explanation for the unidentified line. While its energy is consistent with XMM pn detections, it is unlikely to explain the MOS signal. A confirmation of this interesting feature has to wait for a more sensitive observation with a future calorimeter experiment.

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Collaboration types: Domestic collaboration; International collaboration
Citation topics: 5 Physics; 5.9 Particles & Fields; 5.9.398 Neutrinos
Web Of Science research areas: Astronomy & Astrophysics
ESI research areas: Space Science

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Title: Hitomi Constraints on the 3.5 keV Line in the Perseus Galaxy Cluster
Creators: F. A Aharonian - Moscow Engineering Physics Institute
H Akamatsu - SRON Netherlands Institute for Space Research
F Akimoto - Nagoya University
S. W Allen - Stanford University
L Angelini - Goddard Space Flight Center
K. A Arnaud - University of Maryland, College Park
M Audard - University of Geneva
H Awaki - Ehime University
M Axelsson - Tokyo Metropolitan University
A Bamba - The University of Tokyo
M. W Bautz - Massachusetts Institute of Technology
R. D Blandford - Stanford University
E Bulbul - Massachusetts Institute of Technology
L. W Brenneman - Harvard University
G. V Brown - Lawrence Livermore National Laboratory
E. M Cackett - University of Cambridge
M Chernyakova - Dublin Institute For Advanced Studies
M. P Chiao - Goddard Space Flight Center
P Coppi - Yale University
E Costantini - SRON Netherlands Institute for Space Research
J. de Plaa
J.-W. den Herder - SRON Netherlands Institute for Space Research
C Done - Durham University
T Dotani
K Ebisawa
M. E Eckart - Goddard Space Flight Center
T Enoto - Kyoto University
Y Ezoe - Tokyo Metropolitan University
A. C Fabian - University of Cambridge
C Ferrigno - University of Geneva
A. R Foster - Harvard University
R Fujimoto - Kanazawa University
Y Fukazawa - Hiroshima University
A Furuzawa - Fujita Health University
M Galeazzi - University of Miami
L. C Gallo - Saint Mary's University
P Gandhi - University of Southampton
M Giustini - SRON Netherlands Institute for Space Research
A Goldwurm
L Gu - SRON Netherlands Institute for Space Research
M Guainazzi
Y Haba - Aichi University of Education
K Hagino
K Hamaguchi - University of Maryland, Baltimore County
I Harrus - University of Maryland, Baltimore County
I Hatsukade - University of Miyazaki
K Hayashi
T Hayashi - Nagoya University
K Hayashida - Osaka University
J Hiraga - Kwansei Gakuin University
A. E Hornschemeier - Goddard Space Flight Center
A Hoshino - Rikkyo University
J. P Hughes - Rutgers, The State University of New Jersey
Y Ichinohe - Tokyo Metropolitan University
R Iizuka
H Inoue
S Inoue - Osaka University
Y Inoue
K Ishibashi - Nagoya University
M Ishida
K Ishikawa
Y Ishisaki - Tokyo Metropolitan University
M Itoh - Kobe University
M Iwai
N Iyomoto - Kyushu University
J. S Kaastra - SRON Netherlands Institute for Space Research
T Kallman - Goddard Space Flight Center
T Kamae - Stanford University
E Kara - University of Maryland, College Park
J Kataoka - Waseda University
S Katsuda - Chuo University
J Katsuta - Hiroshima University
M Kawaharada - Japan Aerospace Exploration Agency
N Kawai - Tokyo Institute of Technology
R. L Kelley - Goddard Space Flight Center
D Khangulyan - Rikkyo University
C. A Kilbourne - Goddard Space Flight Center
A. L King - Stanford University
T Kitaguchi - Hiroshima University
S Kitamoto - Rikkyo University
T Kitayama - Toho University
T Kohmura - Tokyo University of Science
M Kokubun
S Koyama
K Koyama - Kyoto University
P Kretschmar
H. A Krimm - Goddard Space Flight Center
A Kubota - Shibaura Institute of Technology
H Kunieda - Nagoya University
P Laurent
F Lebrun
S.-H Lee
M. A Leutenegger - Goddard Space Flight Center
O Limousin
M Loewenstein - University of Maryland, College Park
K. S Long - Space Telescope Science Institute
D. H Lumb - European Space Research and Technology Centre
G. M Madejski - Stanford University
Y Maeda
D Maier
K Makishima
M Markevitch - Goddard Space Flight Center
H Matsumoto - Nagoya University
K Matsushita - Tokyo University of Science
D McCammon - University of Wisconsin–Madison
B. R McNamara - University of Waterloo
M Mehdipour - SRON Netherlands Institute for Space Research
E. D Miller - Massachusetts Institute of Technology
J. M Miller - University of Michigan–Ann Arbor
S Mineshige - Kyoto University
K Mitsuda
I Mitsuishi - Nagoya University
T Miyazawa - Okinawa Institute of Science and Technology Graduate University
T Mizuno - Hiroshima University
H Mori - Goddard Space Flight Center
K Mori - University of Miyazaki
H Moseley - Goddard Space Flight Center
K Mukai - University of Maryland, Baltimore County
H Murakami - Tohoku Gakuin University
T Murakami - Kanazawa University
R. F Mushotzky - University of Maryland, College Park
T Nakagawa
H Nakajima - Osaka University
T Nakamori - Yamagata University
T Nakano
S Nakashima
K Nakazawa - The University of Tokyo
K Nobukawa - Nara Women's University
M Nobukawa - Nara University of Education
H Noda - Tohoku University
M Nomachi - Osaka University
S. L. O’ Dell - Marshall Space Flight Center
H Odaka
T Ohashi - Tokyo Metropolitan University
M Ohno - Hiroshima University
T Okajima - Goddard Space Flight Center
N Ota - Nara Women's University
M Ozaki
F Paerels - Columbia University
S Paltani - University of Geneva
A Parmar - European Space Research and Technology Centre
R Petre - Goddard Space Flight Center
C Pinto - University of Cambridge
M Pohl - University of Geneva
F. S Porter - Goddard Space Flight Center
K Pottschmidt - University of Maryland, Baltimore County
B. D Ramsey - Marshall Space Flight Center
C. S Reynolds - University of Maryland, College Park
H. R Russell - University of Cambridge
S Safi-Harb - University of Manitoba
S Saito - Rikkyo University
K Sakai - Goddard Space Flight Center
H Sameshima
T Sasaki - Tokyo University of Science
G Sato
K Sato - Tokyo University of Science
R Sato
M Sawada - Aoyama Gakuin University
N Schartel
P. J Serlemitsos - Goddard Space Flight Center
H Seta - Tokyo Metropolitan University
M Shidatsu
A Simionescu
R. K Smith - Harvard University
Y Soong - Goddard Space Flight Center
Ł Stawarz
Y Sugawara
S Sugita - Tokyo Institute of Technology
A. E Szymkowiak - Yale University
H Tajima - Nagoya University
H Takahashi - Hiroshima University
T Takahashi
S Takeda - Okinawa Institute of Science and Technology Graduate University
Y Takei
T Tamagawa
K Tamura - Nagoya University
T Tamura
T Tanaka - Kyoto University
Yasuo Tanaka
Yasuyuki Tanaka - Hiroshima University
M Tashiro - Saitama University
Y Tawara - Nagoya University
Y Terada - Saitama University
Y Terashima - Ehime University
F Tombesi - Goddard Space Flight Center
H Tomida
Y Tsuboi - Chuo University
M Tsujimoto
H Tsunemi - Osaka University
T Tsuru - Kyoto University
H Uchida - Kyoto University
H Uchiyama - Shizuoka University
Y Uchiyama - Rikkyo University
S Ueda
Y Ueda - Kyoto University
S Ueno
S Uno - Nihon Fukushi University
C. M Urry - Yale University
E Ursino - University of Miami
C. P. de Vries
S Watanabe
N Werner - Hungarian Academy of Sciences
D. R Wik - Johns Hopkins University
D. R Wilkins - Saint Mary's University
B. J Williams - Goddard Space Flight Center
S Yamada - Tokyo Metropolitan University
H Yamaguchi - Goddard Space Flight Center
K Yamaoka - Nagoya University
N. Y Yamasaki
M Yamauchi - University of Miyazaki
S Yamauchi - Nara Women's University
T Yaqoob - University of Maryland, Baltimore County
Y Yatsu - Tokyo Institute of Technology
D Yonetoku - Kanazawa University
A Yoshida - University of Manitoba
I Zhuravleva - Stanford University
A Zoghbi - University of Michigan–Ann Arbor
Hitomi Collaboration
Publication Details: Astrophysical Journal Letters, Vol.837(1), p.L15
Publisher: American Astronomical Society
Academic Unit: College of A&S; A&S - Physics
Language: English
Resource Type: Journal article
Record Identifier: 991031713720102976