Hitomi observation of radio galaxy NGC 1275: The first X-ray
microcalorimeter spectroscopy of Fe-K alpha line emission from
an active galactic nucleus

J 2018

Hitomi observation of radio galaxy NGC 1275: The first X-ray microcalorimeter spectroscopy of Fe-K alpha line emission from an active galactic nucleus

AHARONIAN, F., H. AKAMATSU, F. AKIMOTO, S.W. ALLEN, L. ANGELINI et. al.

Základní údaje

Originální název

Hitomi observation of radio galaxy NGC 1275: The first X-ray microcalorimeter spectroscopy of Fe-K alpha line emission from an active galactic nucleus

Autoři

AHARONIAN, F. (840 Spojené státy), H. AKAMATSU (840 Spojené státy), 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), P.S. 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), 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 (392 Japonsko), 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), 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), OO. 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 (380 Itálie), E.D. 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 (380 Itálie), 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 (124 Kanada), 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 (840 Spojené státy), 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. ZOGHBI (528 Nizozemské království) a T. KAWAMURO (840 Spojené státy)

Vydání

PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN, OXFORD, OXFORD UNIV PRESS, 2018, 0004-6264

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

10308 Astronomy

Stát vydavatele

Japonsko

Utajení

není předmětem státního či obchodního tajemství

Odkazy

URL URL

Impakt faktor

Impact factor: 2.750

Kód RIV

RIV/00216224:14310/18:00103774

Organizační jednotka

Přírodovědecká fakulta

DOI

http://dx.doi.org/10.1093/pasj/psx147

UT WoS

000432287600005

Klíčová slova anglicky

galaxies: active; galaxies: individual (NGC 1275); galaxies: radio galaxy; methods: observational; X-rays: galaxies

Příznaky

Mezinárodní význam, Recenzováno

Změněno: 10. 11. 2022 12:38, Mgr. Marie Šípková, DiS.

Anotace

V originále

The origin of the narrow Fe-K alpha fluorescence line at 6.4 keV from active galactic nuclei has long been under debate; some of the possible sites are the outer accretion disk, the broad line region, a molecular torus, or interstellar/intracluster media. In 2016 February-March, we performed the first X-ray microcalorimeter spectroscopy with the Soft X-ray Spectrometer (SXS) on board the Hitomi satellite of the Fanaroff-Riley type I radio galaxy NGC 1275 at the center of the Perseus cluster of galaxies. With the high-energy resolution of similar to 5 eV at 6 keV achieved by Hitomi/SXS, we detected the Fe-K alpha line with similar to 5.4 sigma significance. The velocity width is constrained to be 500-1600 km s(-1) (FWHM for Gaussian models) at 90% confidence. The SXS also constrains the continuum level from the NGC 1275 nucleus up to similar to 20 keV, giving an equivalent width of similar to 20 eV for the 6.4 keV line. Because the velocity width is narrower than that of the broad H alpha line of similar to 2750 km s(-1), we can exclude a large contribution to the line flux from the accretion disk and the broad line region. Furthermore, we performed pixel map analyses on the Hitomi/SXS data and image analyses on the Chandra archival data, and revealed that the Fe-K alpha line comes from a region within similar to 1.6 kpc of the NGC 1275 core, where an active galactic nucleus emission dominates, rather than that from intracluster media. Therefore, we suggest that the source of the Fe-K alpha line from NGC 1275 is likely a low-covering-fraction molecular torus or a rotating molecular disk which probably extends from a parsec to hundreds of parsecs scale in the active galactic nucleus system.

Citovat

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, P.S. 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, 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, 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, OO. 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, E.D. 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. ZOGHBI a T. KAWAMURO. Hitomi observation of radio galaxy NGC 1275: The first X-ray microcalorimeter spectroscopy of Fe-K alpha line emission from an active galactic nucleus. PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN. OXFORD: OXFORD UNIV PRESS, 2018, roč. 70, č. 2, s. "13-1"-"13-20", 20 s. ISSN 0004-6264. Dostupné z: https://dx.doi.org/10.1093/pasj/psx147.

@article{1440417,
   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, P.S. 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 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 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, OO. 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, E.D. 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. and Kawamuro, T.},
   article_location = {OXFORD},
   article_number = {2},
   doi = {http://dx.doi.org/10.1093/pasj/psx147},
   keywords = {galaxies: active; galaxies: individual (NGC 1275); galaxies: radio galaxy; methods: observational; X-rays: galaxies},
   language = {eng},
   issn = {0004-6264},
   journal = {PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN},
   title = {Hitomi observation of radio galaxy NGC 1275: The first X-ray microcalorimeter spectroscopy of Fe-K alpha line emission from an active galactic nucleus},
   url = {https://arxiv.org/abs/1711.06289},
   volume = {70},
   year = {2018}
}

TY  - JOUR
ID  - 1440417
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, P.S. - 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. - 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. - 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, OO. - 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, E.D. - 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. - Kawamuro, T.
PY  - 2018
TI  - Hitomi observation of radio galaxy NGC 1275: The first X-ray microcalorimeter spectroscopy of Fe-K alpha line emission from an active galactic nucleus
JF  - PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN
VL  - 70
IS  - 2
SP  - "13-1"-"13-20"
EP  - "13-1"-"13-20"
PB  - OXFORD UNIV PRESS
SN  - 00046264
KW  - galaxies: active
KW  - galaxies: individual (NGC 1275)
KW  - galaxies: radio galaxy
KW  - methods: observational
KW  - X-rays: galaxies
UR  - https://arxiv.org/abs/1711.06289
N2  - The origin of the narrow Fe-K alpha fluorescence line at 6.4 keV from active galactic nuclei has long been under debate; some of the possible sites are the outer accretion disk, the broad line region, a molecular torus, or interstellar/intracluster media. In 2016 February-March, we performed the first X-ray microcalorimeter spectroscopy with the Soft X-ray Spectrometer (SXS) on board the Hitomi satellite of the Fanaroff-Riley type I radio galaxy NGC 1275 at the center of the Perseus cluster of galaxies. With the high-energy resolution of similar to 5 eV at 6 keV achieved by Hitomi/SXS, we detected the Fe-K alpha line with similar to 5.4 sigma significance. The velocity width is constrained to be 500-1600 km s(-1) (FWHM for Gaussian models) at 90% confidence. The SXS also constrains the continuum level from the NGC 1275 nucleus up to similar to 20 keV, giving an equivalent width of similar to 20 eV for the 6.4 keV line. Because the velocity width is narrower than that of the broad H alpha line of similar to 2750 km s(-1), we can exclude a large contribution to the line flux from the accretion disk and the broad line region. Furthermore, we performed pixel map analyses on the Hitomi/SXS data and image analyses on the Chandra archival data, and revealed that the Fe-K alpha line comes from a region within similar to 1.6 kpc of the NGC 1275 core, where an active galactic nucleus emission dominates, rather than that from intracluster media. Therefore, we suggest that the source of the Fe-K alpha line from NGC 1275 is likely a low-covering-fraction molecular torus or a rotating molecular disk which probably extends from a parsec to hundreds of parsecs scale in the active galactic nucleus system.
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, P.S. 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, 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, 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, OO. 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, E.D. 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. ZOGHBI a T. KAWAMURO. Hitomi observation of radio galaxy NGC 1275: The first X-ray microcalorimeter spectroscopy of Fe-K alpha line emission from an active galactic nucleus. \textit{PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN}. OXFORD: OXFORD UNIV PRESS, 2018, roč.~70, č.~2, s.~''13-1''-''13-20'', 20 s. ISSN~0004-6264. Dostupné z: https://dx.doi.org/10.1093/pasj/psx147.

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