J 2018

Atmospheric gas dynamics in the Perseus cluster observed with Hitomi

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

Základní údaje

Originální název

Atmospheric gas dynamics in the Perseus cluster observed with Hitomi

Autoři

AHARONIAN, F.; H. AKAMATSU; F. AKIMOTO; S.W. ALLEN; L. ANGELINI; M. AUDARD; H. AWAKI; M. AXELSSON; A. BAMBA; MW. BAUTZ; R. BLANDFORD; LW. BRENNEMAN; GV. BROWN; E. BULBUL; EM. CACKETT; REA. CANNING; 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; AC. 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; T. HAYASHI; K. HAYASHIDA; JS. HIRAGA; A. HORNSCHEMEIER; A. HOSHINO; J.P. HUGHES; Y. ICHINOHE; R. IIZUKA; H. INOUE; S. INOUE; Y. INOUE; M. ISHIDA; K. ISHIKAWA; Y. ISHISAKI; M. IWAI; J. KAASTRA; T. KALLMAN; T. KAMAE; J. KATAOKA; S. KATSUDA; N. KAWAI; RL. KELLEY; CA. 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. LUMR; G. MADEJSKI; Y. MAEDA; D. MAIER; K. MAKISHIMA; M. MARKEVITCH; H. MATSUMOTO; K. MATSUSHITA; D. MCCAMMON; BR. 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; RF. 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; R.K. 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; K. TANAKA; 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; QHS. WANG; 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

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

Impakt faktor

Impact factor: 2.750

Kód RIV

RIV/00216224:14310/18:00103759

Organizační jednotka

Přírodovědecká fakulta

UT WoS

000432287600001

EID Scopus

2-s2.0-85071589087

Klíčová slova anglicky

galaxies: clusters: individual (Perseus); galaxies: clusters: intracluster medium; galaxies: individual (NGC 1275); X-rays: galaxies: clusters

Štítky

Změněno: 10. 11. 2022 12:26, Mgr. Marie Novosadová Šípková, DiS.

Anotace

V originále

Extending the earlier measurements reported in Hitomi collaboration (2016, Nature, 535, 117), we examine the atmospheric gas motions within the central 100 kpc of the Perseus cluster using observations obtained with the Hitomi satellite. After correcting for the point spread function of the telescope and using optically thin emission lines, we find that the line-of-sight velocity dispersion of the hot gas is remarkably low and mostly uniform. The velocity dispersion reaches a maxima of approximately 200 km s(-1) toward the central active galactic nucleus (AGN) and toward the AGN inflated northwestern "ghost" bubble. Elsewhere within the observed region, the velocity dispersion appears constant around 100 km s(-1). We also detect a velocity gradient with a 100 km s(-1) amplitude across the cluster core, consistent with large-scale sloshing of the core gas. If the observed gas motions are isotropic, the kinetic pressure support is less than 10% of the thermal pressure support in the cluster core. The well-resolved, optically thin emission lines have Gaussian shapes, indicating that the turbulent driving scale is likely below 100 kpc, which is consistent with the size of the AGN jet inflated bubbles. We also report the first measurement of the ion temperature in the intracluster medium, which we find to be consistent with the electron temperature. In addition, we present a new measurement of the redshift of the brightest cluster galaxy NGC 1275.