Temperature structure in the Perseus cluster core observed with
Hitomi

AHARONIAN, F., H. AKAMATSU, F. AKIMOTO, S.W. ALLEN, L. ANGELINI, M. AUDARD, H. AWAKI, M. AXELSSON, A. BAMBA, M.W. BAUTZ, R. BLANDFORD, L.W. BRENNEMAN, GV. BROWN, E. BULBUL, EM. CACKETT, M. CHERNYAKOVA, MP. CHIAO, PS. COPPI, E. COSTANTINI, J. DE PLAA, C.P. DE VRIES, J.W. DEN HERDER, C. DONE, T. DOTANI, K. EBISAWA, ME. ECKART, T. ENOTO, Y. EZOE, A.C. FABIAN, C. FERRIGNO, AR. FOSTER, R. FUJIMOTO, Y. FUKAZAWA, M. FURUKAWA, A. FURUZAWA, M. GALEAZZI, L.C. GALLO, P. GANDHI, M. GIUSTINI, A. GOLDWURM, Gu LY, M. GUAINAZZI, Y. HABA, K. HAGINO, K. HAMAGUCHI, IM. HARRUS, I. HATSUKADE, K. HAYASHI, T. HAYASHI, K. HAYASHIDA, JS. HIRAGA, A. HORNSCHEMEIER, A. HOSHINO, J.P. HUGHES, Y. ICHINOHE, R. IIZUKA, H. INOUE, Y. INOUE, M. ISHIDA, K. ISHIKAWA, Y. ISHISAKI, M. IWAI, J. KAASTRA, T. KALLMAN, T. KAMAE, J. KATAOKA, Y. KATO, S. KATSUDA, N. KAWAI, R.L. KELLEY, C.A. KILBOURNE, T. KITAGUCHI, S. KITAMOTO, T. KITAYAMA, T. KOHMURA, M. KOKUBUN, K. KOYAMA, S. KOYAMA, P. KRETSCHMAR, HA. KRIMM, A. KUBOTA, H. KUNIEDA, P. LAURENT, SH. LEE, MA. LEUTENEGGER, O. LIMOUSIN, M. LOEWENSTEIN, KS. LONG, D. LUMB, G. MADEJSKI, Y. MAEDA, D. MAIER, K. MAKISHIMA, M. MARKEVITCH, H. MATSUMOTO, K. MATSUSHITA, D. MCCAMMON, B.R. MCNAMARA, M. MEHDIPOUR, ED. MILLER, JM. MILLER, S. MINESHIGE, K. MITSUDA, I. MITSUISHI, T. MIYAZAWA, T. MIZUNO, H. MORI, K. MORI, K. MUKAI, H. MURAKAMI, R.F. MUSHOTZKY, T. NAKAGAWA, H. NAKAJIMA, T. NAKAMORI, S. NAKASHIMA, K. NAKAZAWA, KK. NORUKAWA, M. NOBUKAWA, H. NODA, H. ODAKA, T. OHASHI, M. OHNO, T. OKAJIMA, N. OTA, M. OZAKI, F. PAERELS, S. PALTANI, R. PETRE, C. PINTO, FS. PORTER, K. POTTSCHMIDT, C.S. REYNOLDS, S. SAFI-HARB, S. SAITO, K. SAKAI, T. SASAKI, G. SATO, K. SATO, R. SATO, M. SAWADA, N. SCHARTEL, P.J. SERLEMITSOS, H. SETA, M. SHIDATSU, A. SIMIONESCU, RK. SMITH, Y. SOONG, L. STAWARZ, Y. SUGAWARA, S. SUGITA, A. SZYMKOWIAK, H. TAJIMA, H. TAKAHASHI, T. TAKAHASHI, S. TAKEDA, Y. TAKEI, T. TAMAGAWA, T. TAMURA, T. TANAKA, Y. TANAKA, YT. TANAKA, MS. TASHIRO, Y. TAWARA, Y. TERADA, Y. TERASHIMA, F. TOMBESI, H. TOMIDA, Y. TSUBOI, M. TSUJIMOTO, H. TSUNEMI, TG. TSURU, H. UCHIDA, H. UCHIYAMA, Y. UCHIYAMA, S. UEDA, Y. UEDA, S. UNO, C.M. URRY, E. URSINO, S. WATANABE, Norbert WERNER, DR. WILKINS, BJ. WILLIAMS, S. YAMADA, H. YAMAGUCHI, K. YAMAOKA, NY. YAMASAKI, M. YAMAUCHI, S. YAMAUCHI, T. YAQOOB, Y. YATSU, D. YONETOKU, I. ZHURAVLEVA a A. ZOGHBI. Temperature structure in the Perseus cluster core observed with Hitomi. PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN. OXFORD: OXFORD UNIV PRESS, 2018, roč. 70, č. 2, s. "11-1"-"11-30", 30 s. ISSN 0004-6264. Dostupné z: https://dx.doi.org/10.1093/pasj/psy004.

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@article{1440377,
   author = {Aharonian, F. and Akamatsu, H. and Akimoto, F. and Allen, S.W. and Angelini, L. and Audard, M. and Awaki, H. and Axelsson, M. and Bamba, A. and Bautz, M.W. and Blandford, R. and Brenneman, L.W. and Brown, GV. and Bulbul, E. and Cackett, EM. and Chernyakova, M. and Chiao, MP. and Coppi, PS. and Costantini, E. and de Plaa, J. and de Vries, C.P. and den Herder, J.W. and Done, C. and Dotani, T. and Ebisawa, K. and Eckart, ME. and Enoto, T. and Ezoe, Y. and Fabian, A.C. and Ferrigno, C. and Foster, AR. and Fujimoto, R. and Fukazawa, Y. and Furukawa, M. and Furuzawa, A. and Galeazzi, M. and Gallo, L.C. and Gandhi, P. and Giustini, M. and Goldwurm, A. and LY, Gu and Guainazzi, M. and Haba, Y. and Hagino, K. and Hamaguchi, K. and Harrus, IM. and Hatsukade, I. and Hayashi, K. and Hayashi, T. and Hayashida, K. and Hiraga, JS. and Hornschemeier, A. and Hoshino, A. and Hughes, J.P. and Ichinohe, Y. and Iizuka, R. and Inoue, H. and Inoue, Y. and Ishida, M. and Ishikawa, K. and Ishisaki, Y. and Iwai, M. and Kaastra, J. and Kallman, T. and Kamae, T. and Kataoka, J. and Kato, Y. and Katsuda, S. and Kawai, N. and Kelley, R.L. and Kilbourne, C.A. and Kitaguchi, T. and Kitamoto, S. and Kitayama, T. and Kohmura, T. and Kokubun, M. and Koyama, K. and Koyama, S. and Kretschmar, P. and Krimm, HA. and Kubota, A. and Kunieda, H. and Laurent, P. and Lee, SH. and Leutenegger, MA. and Limousin, O. and Loewenstein, M. and Long, KS. and Lumb, D. and Madejski, G. and Maeda, Y. and Maier, D. and Makishima, K. and Markevitch, M. and Matsumoto, H. and Matsushita, K. and McCammon, D. and McNamara, B.R. and Mehdipour, M. and Miller, ED. and Miller, JM. and Mineshige, S. and Mitsuda, K. and Mitsuishi, I. and Miyazawa, T. and Mizuno, T. and Mori, H. and Mori, K. and Mukai, K. and Murakami, H. and Mushotzky, R.F. and Nakagawa, T. and Nakajima, H. and Nakamori, T. and Nakashima, S. and Nakazawa, K. and Norukawa, KK. and Nobukawa, M. and Noda, H. and Odaka, H. and Ohashi, T. and Ohno, M. and Okajima, T. and Ota, N. and Ozaki, M. and Paerels, F. and Paltani, S. and Petre, R. and Pinto, C. and Porter, FS. and Pottschmidt, K. and Reynolds, C.S. and SafiandHarb, S. and Saito, S. and Sakai, K. and Sasaki, T. and Sato, G. and Sato, K. and Sato, R. and Sawada, M. and Schartel, N. and Serlemitsos, P.J. and Seta, H. and Shidatsu, M. and Simionescu, A. and Smith, RK. and Soong, Y. and Stawarz, L. and Sugawara, Y. and Sugita, S. and Szymkowiak, A. and Tajima, H. and Takahashi, H. and Takahashi, T. and Takeda, S. and Takei, Y. and Tamagawa, T. and Tamura, T. and Tanaka, T. and Tanaka, Y. and Tanaka, YT. and Tashiro, MS. and Tawara, Y. and Terada, Y. and Terashima, Y. and Tombesi, F. and Tomida, H. and Tsuboi, Y. and Tsujimoto, M. and Tsunemi, H. and Tsuru, TG. and Uchida, H. and Uchiyama, H. and Uchiyama, Y. and Ueda, S. and Ueda, Y. and Uno, S. and Urry, C.M. and Ursino, E. and Watanabe, S. and Werner, Norbert and Wilkins, DR. and Williams, BJ. and Yamada, S. and Yamaguchi, H. and Yamaoka, K. and Yamasaki, NY. and Yamauchi, M. and Yamauchi, S. and Yaqoob, T. and Yatsu, Y. and Yonetoku, D. and Zhuravleva, I. and Zoghbi, A.},
   article_location = {OXFORD},
   article_number = {2},
   doi = {http://dx.doi.org/10.1093/pasj/psy004},
   keywords = {galaxies: clusters: individual (Perseus); methods: observational; X-rays: galaxies: clusters},
   language = {eng},
   issn = {0004-6264},
   journal = {PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN},
   title = {Temperature structure in the Perseus cluster core observed with Hitomi},
   url = {https://academic.oup.com/pasj/article/70/2/11/4969735},
   volume = {70},
   year = {2018}
}

TY  - JOUR
ID  - 1440377
AU  - Aharonian, F. - Akamatsu, H. - Akimoto, F. - Allen, S.W. - Angelini, L. - Audard, M. - Awaki, H. - Axelsson, M. - Bamba, A. - Bautz, M.W. - Blandford, R. - Brenneman, L.W. - Brown, GV. - Bulbul, E. - Cackett, EM. - Chernyakova, M. - Chiao, MP. - Coppi, PS. - Costantini, E. - de Plaa, J. - de Vries, C.P. - den Herder, J.W. - Done, C. - Dotani, T. - Ebisawa, K. - Eckart, ME. - Enoto, T. - Ezoe, Y. - Fabian, A.C. - Ferrigno, C. - Foster, AR. - Fujimoto, R. - Fukazawa, Y. - Furukawa, M. - Furuzawa, A. - Galeazzi, M. - Gallo, L.C. - Gandhi, P. - Giustini, M. - Goldwurm, A. - LY, Gu - Guainazzi, M. - Haba, Y. - Hagino, K. - Hamaguchi, K. - Harrus, IM. - Hatsukade, I. - Hayashi, K. - Hayashi, T. - Hayashida, K. - Hiraga, JS. - Hornschemeier, A. - Hoshino, A. - Hughes, J.P. - Ichinohe, Y. - Iizuka, R. - Inoue, H. - Inoue, Y. - Ishida, M. - Ishikawa, K. - Ishisaki, Y. - Iwai, M. - Kaastra, J. - Kallman, T. - Kamae, T. - Kataoka, J. - Kato, Y. - Katsuda, S. - Kawai, N. - Kelley, R.L. - Kilbourne, C.A. - Kitaguchi, T. - Kitamoto, S. - Kitayama, T. - Kohmura, T. - Kokubun, M. - Koyama, K. - Koyama, S. - Kretschmar, P. - Krimm, HA. - Kubota, A. - Kunieda, H. - Laurent, P. - Lee, SH. - Leutenegger, MA. - Limousin, O. - Loewenstein, M. - Long, KS. - Lumb, D. - Madejski, G. - Maeda, Y. - Maier, D. - Makishima, K. - Markevitch, M. - Matsumoto, H. - Matsushita, K. - McCammon, D. - McNamara, B.R. - Mehdipour, M. - Miller, ED. - Miller, JM. - Mineshige, S. - Mitsuda, K. - Mitsuishi, I. - Miyazawa, T. - Mizuno, T. - Mori, H. - Mori, K. - Mukai, K. - Murakami, H. - Mushotzky, R.F. - Nakagawa, T. - Nakajima, H. - Nakamori, T. - Nakashima, S. - Nakazawa, K. - Norukawa, KK. - Nobukawa, M. - Noda, H. - Odaka, H. - Ohashi, T. - Ohno, M. - Okajima, T. - Ota, N. - Ozaki, M. - Paerels, F. - Paltani, S. - Petre, R. - Pinto, C. - Porter, FS. - Pottschmidt, K. - Reynolds, C.S. - Safi-Harb, S. - Saito, S. - Sakai, K. - Sasaki, T. - Sato, G. - Sato, K. - Sato, R. - Sawada, M. - Schartel, N. - Serlemitsos, P.J. - Seta, H. - Shidatsu, M. - Simionescu, A. - Smith, RK. - Soong, Y. - Stawarz, L. - Sugawara, Y. - Sugita, S. - Szymkowiak, A. - Tajima, H. - Takahashi, H. - Takahashi, T. - Takeda, S. - Takei, Y. - Tamagawa, T. - Tamura, T. - Tanaka, T. - Tanaka, Y. - Tanaka, YT. - Tashiro, MS. - Tawara, Y. - Terada, Y. - Terashima, Y. - Tombesi, F. - Tomida, H. - Tsuboi, Y. - Tsujimoto, M. - Tsunemi, H. - Tsuru, TG. - Uchida, H. - Uchiyama, H. - Uchiyama, Y. - Ueda, S. - Ueda, Y. - Uno, S. - Urry, C.M. - Ursino, E. - Watanabe, S. - Werner, Norbert - Wilkins, DR. - Williams, BJ. - Yamada, S. - Yamaguchi, H. - Yamaoka, K. - Yamasaki, NY. - Yamauchi, M. - Yamauchi, S. - Yaqoob, T. - Yatsu, Y. - Yonetoku, D. - Zhuravleva, I. - Zoghbi, A.
PY  - 2018
TI  - Temperature structure in the Perseus cluster core observed with Hitomi
JF  - PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN
VL  - 70
IS  - 2
SP  - "11-1"-"11-30"
EP  - "11-1"-"11-30"
PB  - OXFORD UNIV PRESS
SN  - 00046264
KW  - galaxies: clusters: individual (Perseus)
KW  - methods: observational
KW  - X-rays: galaxies: clusters
UR  - https://academic.oup.com/pasj/article/70/2/11/4969735
N2  - The present paper explains the temperature structure of X-ray emitting plasma in the core of the Perseus cluster based on 1.8-20.0 keV data obtained with the Soft X-ray Spectrometer (SXS) on board the Hitomi Observatory. A series of four observations was carried out, with a total effective exposure time of 338 ks that covered a central region of similar to 7' in diameter. SXS was operated with an energy resolution of similar to 5 eV (full width at half maximum) at 5.9 keV. Not only fine structures of K-shell lines in He-like ions, but also transitions from higher principal quantum numbers were clearly resolved from Si through Fe. That enabled us to perform temperature diagnostics using the line ratios of Si, S, Ar, Ca, and Fe, and to provide the first direct measurement of the excitation temperature and ionization temperature in the Perseus cluster. The observed spectrum is roughly reproduced by a single-temperature thermal plasma model in collisional ionization equilibrium, but detailed line-ratio diagnostics reveal slight deviations from this approximation. In particular, the data exhibit an apparent trend of increasing ionization temperature with the atomic mass, as well as small differences between the ionization and excitation temperatures for Fe, the only element for which both temperatures could be measured. The best-fit two-temperature models suggest a combination of 3 and 5 keV gas, which is consistent with the idea that the observed small deviations from a single-temperature approximation are due to the effects of projecting the known radial temperature gradient in the cluster core along the line of sight. A comparison with the Chandra/ACIS and the XMM-Newton/RGS results, on the other hand, suggests that additional lower-temperature components are present in the intracluster medium (ICM), but not detectable with Hitomi/SXS giving its 1.8-20 keV energy band.
ER  -

AHARONIAN, F., H. AKAMATSU, F. AKIMOTO, S.W. ALLEN, L. ANGELINI, M. AUDARD, H. AWAKI, M. AXELSSON, A. BAMBA, M.W. BAUTZ, R. BLANDFORD, L.W. BRENNEMAN, GV. BROWN, E. BULBUL, EM. CACKETT, M. CHERNYAKOVA, MP. CHIAO, PS. COPPI, E. COSTANTINI, J. DE PLAA, C.P. DE VRIES, J.W. DEN HERDER, C. DONE, T. DOTANI, K. EBISAWA, ME. ECKART, T. ENOTO, Y. EZOE, A.C. FABIAN, C. FERRIGNO, AR. FOSTER, R. FUJIMOTO, Y. FUKAZAWA, M. FURUKAWA, A. FURUZAWA, M. GALEAZZI, L.C. GALLO, P. GANDHI, M. GIUSTINI, A. GOLDWURM, Gu LY, M. GUAINAZZI, Y. HABA, K. HAGINO, K. HAMAGUCHI, IM. HARRUS, I. HATSUKADE, K. HAYASHI, T. HAYASHI, K. HAYASHIDA, JS. HIRAGA, A. HORNSCHEMEIER, A. HOSHINO, J.P. HUGHES, Y. ICHINOHE, R. IIZUKA, H. INOUE, Y. INOUE, M. ISHIDA, K. ISHIKAWA, Y. ISHISAKI, M. IWAI, J. KAASTRA, T. KALLMAN, T. KAMAE, J. KATAOKA, Y. KATO, S. KATSUDA, N. KAWAI, R.L. KELLEY, C.A. KILBOURNE, T. KITAGUCHI, S. KITAMOTO, T. KITAYAMA, T. KOHMURA, M. KOKUBUN, K. KOYAMA, S. KOYAMA, P. KRETSCHMAR, HA. KRIMM, A. KUBOTA, H. KUNIEDA, P. LAURENT, SH. LEE, MA. LEUTENEGGER, O. LIMOUSIN, M. LOEWENSTEIN, KS. LONG, D. LUMB, G. MADEJSKI, Y. MAEDA, D. MAIER, K. MAKISHIMA, M. MARKEVITCH, H. MATSUMOTO, K. MATSUSHITA, D. MCCAMMON, B.R. MCNAMARA, M. MEHDIPOUR, ED. MILLER, JM. MILLER, S. MINESHIGE, K. MITSUDA, I. MITSUISHI, T. MIYAZAWA, T. MIZUNO, H. MORI, K. MORI, K. MUKAI, H. MURAKAMI, R.F. MUSHOTZKY, T. NAKAGAWA, H. NAKAJIMA, T. NAKAMORI, S. NAKASHIMA, K. NAKAZAWA, KK. NORUKAWA, M. NOBUKAWA, H. NODA, H. ODAKA, T. OHASHI, M. OHNO, T. OKAJIMA, N. OTA, M. OZAKI, F. PAERELS, S. PALTANI, R. PETRE, C. PINTO, FS. PORTER, K. POTTSCHMIDT, C.S. REYNOLDS, S. SAFI-HARB, S. SAITO, K. SAKAI, T. SASAKI, G. SATO, K. SATO, R. SATO, M. SAWADA, N. SCHARTEL, P.J. SERLEMITSOS, H. SETA, M. SHIDATSU, A. SIMIONESCU, RK. SMITH, Y. SOONG, L. STAWARZ, Y. SUGAWARA, S. SUGITA, A. SZYMKOWIAK, H. TAJIMA, H. TAKAHASHI, T. TAKAHASHI, S. TAKEDA, Y. TAKEI, T. TAMAGAWA, T. TAMURA, T. TANAKA, Y. TANAKA, YT. TANAKA, MS. TASHIRO, Y. TAWARA, Y. TERADA, Y. TERASHIMA, F. TOMBESI, H. TOMIDA, Y. TSUBOI, M. TSUJIMOTO, H. TSUNEMI, TG. TSURU, H. UCHIDA, H. UCHIYAMA, Y. UCHIYAMA, S. UEDA, Y. UEDA, S. UNO, C.M. URRY, E. URSINO, S. WATANABE, Norbert WERNER, DR. WILKINS, BJ. WILLIAMS, S. YAMADA, H. YAMAGUCHI, K. YAMAOKA, NY. YAMASAKI, M. YAMAUCHI, S. YAMAUCHI, T. YAQOOB, Y. YATSU, D. YONETOKU, I. ZHURAVLEVA a A. ZOGHBI. Temperature structure in the Perseus cluster core observed with Hitomi. \textit{PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN}. OXFORD: OXFORD UNIV PRESS, 2018, roč.~70, č.~2, s.~''11-1''-''11-30'', 30 s. ISSN~0004-6264. Dostupné z: https://dx.doi.org/10.1093/pasj/psy004.

Základní údaje
Originální název	Temperature structure in the Perseus cluster core observed with Hitomi
Autoři	AHARONIAN, F. (276 Německo), H. AKAMATSU (528 Nizozemské království), F. AKIMOTO (840 Spojené státy), S.W. ALLEN (826 Velká Británie a Severní Irsko), L. ANGELINI (380 Itálie), M. AUDARD (840 Spojené státy), H. AWAKI (840 Spojené státy), M. AXELSSON (840 Spojené státy), A. BAMBA (840 Spojené státy), M.W. BAUTZ (840 Spojené státy), R. BLANDFORD (826 Velká Británie a Severní Irsko), L.W. BRENNEMAN (840 Spojené státy), GV. BROWN (840 Spojené státy), E. BULBUL (840 Spojené státy), EM. CACKETT (840 Spojené státy), M. CHERNYAKOVA (840 Spojené státy), MP. CHIAO (840 Spojené státy), PS. COPPI (840 Spojené státy), E. COSTANTINI (380 Itálie), J. DE PLAA (528 Nizozemské království), C.P. DE VRIES (528 Nizozemské království), J.W. DEN HERDER (528 Nizozemské království), C. DONE (826 Velká Británie a Severní Irsko), T. DOTANI (840 Spojené státy), K. EBISAWA (840 Spojené státy), ME. ECKART (840 Spojené státy), T. ENOTO (840 Spojené státy), Y. EZOE (840 Spojené státy), A.C. FABIAN (826 Velká Británie a Severní Irsko), C. FERRIGNO (380 Itálie), AR. FOSTER (840 Spojené státy), R. FUJIMOTO (840 Spojené státy), Y. FUKAZAWA (840 Spojené státy), M. FURUKAWA (840 Spojené státy), A. FURUZAWA (840 Spojené státy), M. GALEAZZI (380 Itálie), L.C. GALLO (380 Itálie), P. GANDHI (826 Velká Británie a Severní Irsko), M. GIUSTINI (380 Itálie), A. GOLDWURM (840 Spojené státy), Gu LY (528 Nizozemské království), M. GUAINAZZI (380 Itálie), Y. HABA (840 Spojené státy), K. HAGINO (840 Spojené státy), K. HAMAGUCHI (840 Spojené státy), IM. HARRUS (840 Spojené státy), I. HATSUKADE (840 Spojené státy), K. HAYASHI (840 Spojené státy), T. HAYASHI (840 Spojené státy), K. HAYASHIDA (840 Spojené státy), JS. HIRAGA (840 Spojené státy), A. HORNSCHEMEIER (840 Spojené státy), A. HOSHINO (840 Spojené státy), J.P. HUGHES (840 Spojené státy), Y. ICHINOHE (840 Spojené státy), R. IIZUKA (840 Spojené státy), H. INOUE (840 Spojené státy), Y. INOUE (840 Spojené státy), M. ISHIDA (840 Spojené státy), K. ISHIKAWA (840 Spojené státy), Y. ISHISAKI (840 Spojené státy), M. IWAI (840 Spojené státy), J. KAASTRA (528 Nizozemské království), T. KALLMAN (840 Spojené státy), T. KAMAE (840 Spojené státy), J. KATAOKA (840 Spojené státy), Y. KATO (840 Spojené státy), S. KATSUDA (840 Spojené státy), N. KAWAI (840 Spojené státy), R.L. KELLEY (840 Spojené státy), C.A. KILBOURNE (840 Spojené státy), T. KITAGUCHI (840 Spojené státy), S. KITAMOTO (840 Spojené státy), T. KITAYAMA (840 Spojené státy), T. KOHMURA (840 Spojené státy), M. KOKUBUN (840 Spojené státy), K. KOYAMA (840 Spojené státy), S. KOYAMA (840 Spojené státy), P. KRETSCHMAR (840 Spojené státy), HA. KRIMM (840 Spojené státy), A. KUBOTA (840 Spojené státy), H. KUNIEDA (840 Spojené státy), P. LAURENT (840 Spojené státy), SH. LEE (840 Spojené státy), MA. LEUTENEGGER (250 Francie), O. LIMOUSIN (250 Francie), M. LOEWENSTEIN (840 Spojené státy), KS. LONG (840 Spojené státy), D. LUMB (840 Spojené státy), G. MADEJSKI (616 Polsko), Y. MAEDA (840 Spojené státy), D. MAIER (840 Spojené státy), K. MAKISHIMA (840 Spojené státy), M. MARKEVITCH (643 Rusko), H. MATSUMOTO (840 Spojené státy), K. MATSUSHITA (840 Spojené státy), D. MCCAMMON (840 Spojené státy), B.R. MCNAMARA (840 Spojené státy), M. MEHDIPOUR (528 Nizozemské království), ED. MILLER (840 Spojené státy), JM. MILLER (840 Spojené státy), S. MINESHIGE (840 Spojené státy), K. MITSUDA (840 Spojené státy), I. MITSUISHI (840 Spojené státy), T. MIYAZAWA (840 Spojené státy), T. MIZUNO (840 Spojené státy), H. MORI (840 Spojené státy), K. MORI (840 Spojené státy), K. MUKAI (840 Spojené státy), H. MURAKAMI (840 Spojené státy), R.F. MUSHOTZKY (840 Spojené státy), T. NAKAGAWA (840 Spojené státy), H. NAKAJIMA (840 Spojené státy), T. NAKAMORI (840 Spojené státy), S. NAKASHIMA (840 Spojené státy), K. NAKAZAWA (840 Spojené státy), KK. NORUKAWA (840 Spojené státy), M. NOBUKAWA (840 Spojené státy), H. NODA (840 Spojené státy), H. ODAKA (840 Spojené státy), T. OHASHI (840 Spojené státy), M. OHNO (840 Spojené státy), T. OKAJIMA (840 Spojené státy), N. OTA (840 Spojené státy), M. OZAKI (840 Spojené státy), F. PAERELS (528 Nizozemské království), S. PALTANI (840 Spojené státy), R. PETRE (840 Spojené státy), C. PINTO (380 Itálie), FS. PORTER (840 Spojené státy), K. POTTSCHMIDT (840 Spojené státy), C.S. REYNOLDS (826 Velká Británie a Severní Irsko), S. SAFI-HARB (840 Spojené státy), S. SAITO (840 Spojené státy), K. SAKAI (840 Spojené státy), T. SASAKI (840 Spojené státy), G. SATO (840 Spojené státy), K. SATO (840 Spojené státy), R. SATO (840 Spojené státy), M. SAWADA (840 Spojené státy), N. SCHARTEL (276 Německo), P.J. SERLEMITSOS (840 Spojené státy), H. SETA (840 Spojené státy), M. SHIDATSU (840 Spojené státy), A. SIMIONESCU (642 Rumunsko), RK. SMITH (840 Spojené státy), Y. SOONG (840 Spojené státy), L. STAWARZ (616 Polsko), Y. SUGAWARA (840 Spojené státy), S. SUGITA (124 Kanada), A. SZYMKOWIAK (840 Spojené státy), H. TAJIMA (840 Spojené státy), H. TAKAHASHI (840 Spojené státy), T. TAKAHASHI (840 Spojené státy), S. TAKEDA (840 Spojené státy), Y. TAKEI (840 Spojené státy), T. TAMAGAWA (840 Spojené státy), T. TAMURA (840 Spojené státy), T. TANAKA (840 Spojené státy), Y. TANAKA (840 Spojené státy), YT. TANAKA (840 Spojené státy), MS. TASHIRO (840 Spojené státy), Y. TAWARA (840 Spojené státy), Y. TERADA (840 Spojené státy), Y. TERASHIMA (840 Spojené státy), F. TOMBESI (380 Itálie), H. TOMIDA (840 Spojené státy), Y. TSUBOI (840 Spojené státy), M. TSUJIMOTO (840 Spojené státy), H. TSUNEMI (840 Spojené státy), TG. TSURU (840 Spojené státy), H. UCHIDA (840 Spojené státy), H. UCHIYAMA (840 Spojené státy), Y. UCHIYAMA (840 Spojené státy), S. UEDA (840 Spojené státy), Y. UEDA (840 Spojené státy), S. UNO (840 Spojené státy), C.M. URRY (840 Spojené státy), E. URSINO (380 Itálie), S. WATANABE (840 Spojené státy), Norbert WERNER (703 Slovensko, garant, domácí), DR. WILKINS (840 Spojené státy), BJ. WILLIAMS (840 Spojené státy), S. YAMADA (840 Spojené státy), H. YAMAGUCHI (840 Spojené státy), K. YAMAOKA (840 Spojené státy), NY. YAMASAKI (840 Spojené státy), M. YAMAUCHI (840 Spojené státy), S. YAMAUCHI (840 Spojené státy), T. YAQOOB (840 Spojené státy), Y. YATSU (840 Spojené státy), D. YONETOKU (840 Spojené státy), I. ZHURAVLEVA (643 Rusko) a A. ZOGHBI (528 Nizozemské království).
Vydání	PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN, OXFORD, OXFORD UNIV PRESS, 2018, 0004-6264.

Další údaje
Originální jazyk	angličtina
Typ výsledku	Článek v odborném periodiku
Obor	10308 Astronomy
Stát vydavatele	Japonsko
Utajení	není předmětem státního či obchodního tajemství
WWW	URL URL
Impakt faktor	Impact factor: 2.750
Kód RIV	RIV/00216224:14310/18:00103773
Organizační jednotka	Přírodovědecká fakulta
Doi	http://dx.doi.org/10.1093/pasj/psy004
UT WoS	000432287600003
Klíčová slova anglicky	galaxies: clusters: individual (Perseus); methods: observational; X-rays: galaxies: clusters
Změnil	Změnila: Mgr. Marie Šípková, DiS., učo 437722. Změněno: 10. 11. 2022 12:55.

Anotace

The present paper explains the temperature structure of X-ray emitting plasma in the core of the Perseus cluster based on 1.8-20.0 keV data obtained with the Soft X-ray Spectrometer (SXS) on board the Hitomi Observatory. A series of four observations was carried out, with a total effective exposure time of 338 ks that covered a central region of similar to 7' in diameter. SXS was operated with an energy resolution of similar to 5 eV (full width at half maximum) at 5.9 keV. Not only fine structures of K-shell lines in He-like ions, but also transitions from higher principal quantum numbers were clearly resolved from Si through Fe. That enabled us to perform temperature diagnostics using the line ratios of Si, S, Ar, Ca, and Fe, and to provide the first direct measurement of the excitation temperature and ionization temperature in the Perseus cluster. The observed spectrum is roughly reproduced by a single-temperature thermal plasma model in collisional ionization equilibrium, but detailed line-ratio diagnostics reveal slight deviations from this approximation. In particular, the data exhibit an apparent trend of increasing ionization temperature with the atomic mass, as well as small differences between the ionization and excitation temperatures for Fe, the only element for which both temperatures could be measured. The best-fit two-temperature models suggest a combination of 3 and 5 keV gas, which is consistent with the idea that the observed small deviations from a single-temperature approximation are due to the effects of projecting the known radial temperature gradient in the cluster core along the line of sight. A comparison with the Chandra/ACIS and the XMM-Newton/RGS results, on the other hand, suggests that additional lower-temperature components are present in the intracluster medium (ICM), but not detectable with Hitomi/SXS giving its 1.8-20 keV energy band.

VytisknoutZobrazeno: 23. 5. 2024 20:05

Temperature structure in the Perseus cluster core observed with Hitomi

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