Revealing the Launching Mechanism of Disk Winds in Black Hole Binaries through High Resolution X-ray Spectroscopy

• Project/Area Number: 16K17672
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Astronomy
• Research Institution: Ehime University (2017-2019); Institute of Physical and Chemical Research (2016)
• Principal Investigator: Shidatsu Megumi 愛媛大学, 理工学研究科(理学系), 助教 (10755846)
• Project Period (FY): 2016-04-01 – 2020-03-31
• Project Status: Completed (Fiscal Year 2019)
• Budget Amount: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000); Fiscal Year 2018: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000); Fiscal Year 2017: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000); Fiscal Year 2016: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
• Keywords: X線天文学 / ブラックホール / 降着円盤 / Ｘ線天文学 / ブラックホール噴出流

Outline of Final Research Achievements

Previous observations of black hole X-ray binaries detected outflows at a velocity as high as ~100-1000 km/s launched from their accretion disks (so-called disk winds). In this study, we analyzed X-ray high resolution spectra obtained with Chandra, to study the structures of the highly ionized blue-shifted absorption lines produced by the disk winds and to derive the column density, the degree of ionization, and the velocity of the winds. These wind parameters were found to be explained well by the thermal wind model, in which the gas in the outer region of the accretion disk is heated by irradiation of X-rays from the inner disk and escape from the system as a wind.

Academic Significance and Societal Importance of the Research Achievements

本研究では、Chandra 衛星などの観測データを用いて、長年の未解明問題であったブラックホールX線連星の円盤風の噴出メカニズムについて、X線の照射による降着円盤のガスの加熱で説明できることを明らかにした。ただし、これは限られた観測データによる結果である。当初の計画では、ひとみ衛星を用いて、円盤風による吸収線をかつてない精度で観測する予定であった。しかし、打ち上げ後１ヶ月で運用を停止し、ブラックホールX線連星の観測が全く実施できなかった。そこで、ひとみの代替機として数年後に打ち上げ予定の XRISM 衛星を用いて、円盤風の噴出メカニズムの問題に最終決着をつけることを目指している。

Research Products

• [Int'l Joint Research] Durham University/Special Astrophysical Observatory(英国)
• [Int'l Joint Research] Durham University(英国)
• [Int'l Joint Research] Special Astrophysical Observatory(ロシア連邦)
• [Journal Article] Application of the Thermal Wind Model to Absorption Features in the Black Hole X-Ray Binary H1743?322 (2019)
  • Author(s): Shidatsu Megumi、Done Chris
  • Journal Title: The Astrophysical Journal Volume: 885 Issue: 2 Pages: 112-112
  • DOI: 10.3847/1538-4357/ab46b3
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] X-ray and optical observations of the black hole candidate MAXI?J1828?249 (2019)
  • Author(s): Oda Sonoe、Shidatsu Megumi、Nakahira Satoshi、Tamagawa Toru、Moritani Yuki、Itoh Ryosuke、Ueda Yoshihiro、Negoro Hitoshi、Makishima Kazuo、Kawai Nobuyuki、Mihara Tatehiro
  • Journal Title: Publications of the Astronomical Society of Japan Volume: 71 Issue: 5 Pages: 108-108
  • DOI: 10.1093/pasj/psz091
  • Peer Reviewed / Open Access
• [Journal Article] X-ray and Optical Monitoring of State Transitions in MAXI J1820+070 (2019)
  • Author(s): Shidatsu Megumi, Nakahira Satoshi, Murata Katsuhiro L., Adachi Ryo, Kawai Nobuyuki, Ueda Yoshihiro, Negoro Hitoshi
  • Journal Title: The Astrophysical Journal Volume: 印刷中
  • Peer Reviewed / Open Access
• [Journal Article] Does the mid-infrared-hard X-ray luminosity relation for active galactic nuclei depend on Eddington ratio? (2019)
  • Author(s): Toba, Y., Ueda, Y., Matsuoka, K., Shidatsu, M., Nagao, T., Terashima, Y., Wang, W., & Chang, Y.
  • Journal Title: Monthly Notices of the Royal Astronomical Society Volume: 484 Issue: 1 Pages: 196-203
  • DOI: 10.1093/mnras/sty3523
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Discovery of Dying Active Galactic Nucleus in Arp 187: Experience of Drastic Luminosity Decline within 104 yr (2019)
  • Author(s): Ichikawa Kohei、Ueda Junko、Bae Hyun-Jin、Kawamuro Taiki、Matsuoka Kenta、Toba Yoshiki、Shidatsu Megumi
  • Journal Title: The Astrophysical Journal Volume: 870 Issue: 2 Pages: 65-65
  • DOI: 10.3847/1538-4357/aaf233
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Detection of polarized gamma-ray emission from the Crab nebula with the Hitomi Soft Gamma-ray Detector (2018)
  • Author(s): Hitomi collaboration
  • Journal Title: Publications of the Astronomical Society of Japan Volume: 70 Issue: 6 Pages: 113-113
  • DOI: 10.1093/pasj/psy118
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Evolution of Thermally Driven Disk Wind in the Black Hole Binary 4U 1630-47 Observed with Suzaku and NuSTAR (2018)
  • Author(s): Hori, T., Ueda, Y., Done, C., Shidatsu, M., Kubota, A.
  • Journal Title: The Astrophysical Journal Volume: 869 Issue: 2 Pages: 183-183
  • DOI: 10.3847/1538-4357/aaea5e
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] X-Ray, Optical, and Near-infrared Monitoring of the New X-Ray Transient MAXI J1820+070 in the Low/Hard State (2018)
  • Author(s): Shidatsu Megumi, Nakahira Satoshi, Yamada Satoshi, Kawamuro Taiki, Ueda Yoshihiro, Negoro Hitoshi, Murata Katsuhiro L., Itoh Ryosuke, Tachibana Yutaro, Adachi Ryo, Yatsu Yoichi, Kawai Nobuyuki, Hanayama Hidekazu, Horiuchi Takashi, Akitaya Hiroshi, Saito Tomoki, Takayama Masaki, Ohshima Tomohito 他 11 名
  • Journal Title: The Astrophysical Journal Volume: 868 Issue: 1 Pages: 54-54
  • DOI: 10.3847/1538-4357/aae929
  • Peer Reviewed / Open Access
• [Journal Article] Ratio of black hole to galaxy mass of an extremely red dust-obscured galaxy at z = 2.52 (2018)
  • Author(s): Matsuoka K.、Toba Y.、Shidatsu M.、Ueda Y.、Iwasawa K.、Terashima Y.、Imanishi M.、Nagao T.、Marconi A.、Wang W.-H.
  • Journal Title: Astronomy & Astrophysics Volume: 620 Pages: L3-L3
  • DOI: 10.1051/0004-6361/201833943
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Discovery and state transitions of the new Galactic black hole candidate MAXI J1535?571 (2018)
  • Author(s): Nakahira Satoshi、Shidatsu Megumi、Makishima Kazuo、Ueda Yoshihiro、Yamaoka Kazutaka、Mihara Tatehiro、Negoro Hitoshi、Kawase Tomofumi、Kawai Nobuyuki、Morita Kotaro
  • Journal Title: Publications of the Astronomical Society of Japan Volume: 70 Issue: 5
  • DOI: 10.1093/pasj/psy093
  • Peer Reviewed / Open Access
• [Journal Article] The 7-year MAXI/GSC X-Ray Source Catalog in the High Galactic Latitude Sky (3MAXI) (2018)
  • Author(s): Kawamuro T., Ueda Y., Shidatsu M., Hori T., Morii M., Nakahira S., Isobe N., Kawai N., Mihara T., Matsuoka M., Morita T., Nakajima M., Negoro H., Oda S., Sakamoto T., Serino M., Sugizaki M., Tanimoto A., Tomida H., Tsuboi, Y. 他 11 名
  • Journal Title: The Astrophysical Journal Supplement Series Volume: 238 Issue: 2 Pages: 32-32
  • DOI: 10.3847/1538-4365/aad1ef
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] State transitions of GRS 1739-278 in the 2014 outburst (2018)
  • Author(s): Wang Sili、Kawai Nobuyuki、Shidatsu Megumi、Tachibana Yutaro、Yoshii Taketoshi、Sudo Masayuki、Kubota Aya
  • Journal Title: Publications of the Astronomical Society of Japan Volume: 70 Issue: 4 Pages: 67-67
  • DOI: 10.1093/pasj/psy058
  • Peer Reviewed / Open Access
• [Journal Article] Hitomi X-ray observation of the pulsar wind nebula G21.5-0.9 (2018)
  • Author(s): Hitomi Collaboration、Aharonian Felix、...、Kohmura Takayoshi...、et al (他191名）
  • Journal Title: Publications of the Astronomical Society of Japan Volume: 70 Issue: 3 Pages: 1-16
  • DOI: 10.1093/pasj/psy027
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] The 7-year MAXI/GSC Source Catalog of the Low-Galactic-latitude Sky (3MAXI) (2018)
  • Author(s): Hori T., Shidatsu, M., Ueda, Y., Kawamuro, T., Morii, M., Nakahira, S., Isobe, N., Kawai, N., Mihara T., Matsuoka, M., Morita, T., Nakajima, M., Negoro, H., Oda, S., Sakamoto, T., Serino, M., Sugizaki, M., Tanimoto, A., Tomida, H., Tsuboi, Y. 他 10 名
  • Journal Title: The Astrophysical Journal Supplement Series Volume: 235 Issue: 1 Pages: 7-7
  • DOI: 10.3847/1538-4365/aaa89c
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Discovery of the New X-Ray Transient MAXI J1807+132: A Candidate of a Neutron Star Low-mass X-Ray Binary (2017)
  • Author(s): Shidatsu M., Tachibana Y., Yoshii T., Negoro H., Kawamuro T., Iwakiri W., Nakahira S., Makishima K., Ueda Y., Kawai N., Serino M., and Kennea J.
  • Journal Title: The Astrophysical Journal Volume: 850 Issue: 2 Pages: 155-155
  • DOI: 10.3847/1538-4357/aa93f0
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Solar abundance ratios of the iron-peak elements in the Perseus cluster (2017)
  • Author(s): Aharonian, F., Bamba, A. et al.
  • Journal Title: Nature Volume: 551 Issue: 7681 Pages: 478-480
  • DOI: 10.1038/nature24301
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Rapid optical variations correlated with X-rays in the 2015 second outburst of V404 Cygni (GS 2023+338) (2017)
  • Author(s): Kimura Mariko、Kato Taichi、Isogai Keisuke、Tak Hyungsuk、Shidatsu Megumi、et al.
  • Journal Title: Monthly Notices of the Royal Astronomical Society Volume: 471 Issue: 1 Pages: 373-382
  • DOI: 10.1093/mnras/stx1555
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Multi-messenger Observations of a Binary Neutron Star Merger (2017)
  • Author(s): Abbott B. P., Abbott, R., Abbott, T. D., Acernese, F., Ackley, K., Adams, C., Adams, T., Addesso, P., Adhikari, R. X., Adya, V. B., Affeldt, C., Afrough, M., Agarwal, B., Agathos, M., Agatsuma, K., Aggarwal, N., Aguiar, O. D., Aiello, L., Ain, A., Ajith, P. 他 Negoro, H. 含む 3656 名
  • Journal Title: The Astrophysical Journal Letters Volume: 848 Issue: 2 Pages: 1-59
  • DOI: 10.3847/2041-8213/aa91c9
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] NuSTAR and Swift Observations of the Ultraluminous X-Ray Source IC 342 X-1 in 2016: Witnessing Spectral Evolution (2017)
  • Author(s): Shidatsu M., Ueda Y., Fabrika S.
  • Journal Title: The Astrophysical Journal Volume: 839 Issue: 1 Pages: 46-46
  • DOI: 10.3847/1538-4357/aa67e7
  • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] Suzaku spectroscopy of the neutron star transient 4U 1608-52 during its outburst decay. (2017)
  • Author(s): Armas Padilla M., Ueda Y., Hori T., Shidatsu M., Munoz-Darias T.
  • Journal Title: Monthly Notices of the Royal Astronomical Society Volume: 467 Pages: 290-297
  • DOI: 10.1093/mnras/stx020
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] An Optically Thick Disk Wind in GRO J1655-40? (2016)
  • Author(s): Shidatsu, M., Done, C., Ueda, Y.
  • Journal Title: The Astrophysical Journal Volume: 823 Issue: 2 Pages: 159-159
  • DOI: 10.3847/0004-637x/823/2/159
  • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] Hitomi Constraints on the 3.5 keV Line in the Perseus Galaxy Cluster (2016)
  • Author(s): Aharonian, F. A., Akamatsu, H, Terada, Y. et al (Hitomi collaboration)
  • Journal Title: The Astrophysical Journal Letters Volume: 837 Issue: 1 Pages: 15-23
  • DOI: 10.3847/2041-8213/aa61fa
  • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] Large X-ray flares on stars detected with MAXI/GSC: A universal correlation between the duration of a flare and its X-ray luminosity (2016)
  • Author(s): Y. Tsuboi, K. Yamazaki, Y. Sugawara, A. Kawagoe, S. Kaneto, R. Iizuka, T. Matsumura, S. Nakahira, M. Higa, M. Matsuoka, M. Sugizaki, Y. Ueda, N. Kawai, M. Morii, M. Serino, T. Mihara, H. Tomida, S. Ueno, H. Negoro, N. Isobe, H. Tsunemi, et al.
  • Journal Title: Publications of the Astronomical Society of Japan Volume: 68 Issue: 5 Pages: 90-90
  • DOI: 10.1093/pasj/psw081
  • Peer Reviewed / Open Access
• [Journal Article] Hard X-ray luminosity function of tidal disruption events: First results from the MAXI extragalactic survey (2016)
  • Author(s): Kawamuro, T., Ueda, Y., Shidatsu, M., Hori, T., Kawai, N., Negoro, H., Mihara, T.
  • Journal Title: Publications of the Astronomical Society of Japan Volume: 68 Issue: 4 Pages: 5874-5874
  • DOI: 10.1093/pasj/psw056
  • Peer Reviewed / Open Access
• [Journal Article] The quiescent intracluster medium in the core of the Perseus cluster (2016)
  • Author(s): Hitomi Collaboration et al.
  • Journal Title: Nature Volume: 535 Issue: 7610 Pages: 117-121
  • DOI: 10.1038/nature18627
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] A soft X-ray lag detected in Centaurus A (2016)
  • Author(s): Y Tachibana, T Kawamuro, Y Ueda, M Shidatsu, M Arimoto, Ti Yoshii, Y Yatsu, Y Saito, S Pike, N Kawai
  • Journal Title: Publications of the Astronomical Society of Japan Volume: 68 Issue: SP1
  • DOI: 10.1093/pasj/psw001
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] The MAXI/GSC Nova-Alert System and results of its first 68 months (2016)
  • Author(s): Negoro, H., Kohama, M., Serino, M., Saitio, H, Takahashi, T., Miyoshi, S., Ozawa, H., Suwa, F., Asada, M., Fukushima, K., Eguchi, S., Kawai, N., Kennea, J., 他 28 名
  • Journal Title: Publications of the Astronomical society of Japan Volume: 68 Issue: SP1 Pages: 1-24
  • DOI: 10.1093/pasj/psw016
  • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] Broadband X-ray study of the galactic black hole binary 4U 1630-47 with Suzaku (2016)
  • Author(s): Hori, T.; Ueda, Y.; Done, C.; Shidatsu, M.; Kawamuro, T.; Kubota, A.; Nakahira, S.
  • Journal Title: Astronomische Nachrichten Volume: 337 Issue: 4-5 Pages: 467-467
  • DOI: 10.1002/asna.201612331
  • Peer Reviewed / Int'l Joint Research
• [Presentation] X線・光赤外線同時観測で探る X 線連星の降着円盤 (2019)
  • Author(s): 志達めぐみ
  • Organizer: 第10回光赤外線天文学大学間連携ワークショップ
  • Invited
• [Presentation] 銀河系内ブラックホールX線連星の多波長観測 (2019)
  • Author(s): 志達めぐみ
  • Organizer: FORCE 研究会: 高感度・広帯域X線観測で探る ブラックホール降着現象の物理
  • Invited
• [Presentation] X 線新星 MAXI J1820+070 の X 線・可視光モニタ観測 (II) 状態遷移の観測 (2019)
  • Author(s): 志達めぐみ、中平聡志、村田勝寛、安達稜、河合誠之、上田佳宏、根來均
  • Organizer: 日本天文学会 2019 年春季年会
• [Presentation] X線新星 MAXI J1820+070 の X 線・可視光モニタ観測 (2018)
  • Author(s): 志達めぐみ、中平聡志、山田智史、上田佳宏、川室太希、根来均、村田勝寛、伊藤亮介、橘優太朗、安達稜、谷津陽一、河合誠之、花山秀和、堀内貴史、光赤外線大学間連携チーム
  • Organizer: 日本天文学会 2018 秋季年会
• [Presentation] New eyes on X-ray astrophysical objects with Japanese and Chinese observatories (2018)
  • Author(s): Megumi Shidatsu
  • Organizer: MAXI observation of MAXI J1535-571 and MAXI J1820+070
  • Int'l Joint Research
• [Presentation] MAXI results on X-ray binaries (2018)
  • Author(s): Megumi Shidatsu
  • Organizer: Time for Accretion
  • Int'l Joint Research / Invited
• [Presentation] X線トランジェント天体MAXI J1807+132 と MAXI J1535-571 の発見と追観測 (2018)
  • Author(s): 志達めぐみ、橘優太朗、吉井健敏、根來均、川室太希、岩切渉、中平聡志、牧島一夫、上田佳宏、河合誠之、芹野素子、Jamie Kennea、森田浩太郎
  • Organizer: 第18回宇宙科学シンポジウム
• [Presentation] ブラックホールX線連星 H1743-322 の観測データを用いた熱駆動型円盤風モデルの検証 (2018)
  • Author(s): 志達めぐみ、Chris Done
  • Organizer: 2018年天文学会春季年会
• [Presentation] NuSTAR とSwift による超高光度X 線源IC 342 X-1 の同時観測 (2017)
  • Author(s): 志達めぐみ, 上田佳宏, Sergei Fabrika
  • Organizer: 日本天文学会2017年春季年会
  • Place of Presentation: 九州大学
  • Year and Date: 2017-03-15
• [Presentation] NuSTAR and Swift observations of the ultraluminous X-ray source IC 342 X-1 in 2016 (2017)
  • Author(s): Shidatsu M.
  • Organizer: Ultra-luminous X-ray Source Workshop
  • Place of Presentation: ISAS (Sagamihara, Japan)
  • Year and Date: 2017-03-06
  • Int'l Joint Research
• [Presentation] MAXI による X 線新星 MAXI J1807+132 の発見と X 線・可視光による追観測 (2017)
  • Author(s): 志達めぐみ、橘優太朗、吉井健敏、根來均、川室太希、岩切渉、中平聡志、牧島一夫、上田佳宏、河合誠之、芹野素子、Jamie Kennea、森田浩太郎
  • Organizer: 2017年天文学会秋季年会
• [Presentation] MAXI/GSC 7-year all-sky map and studies of large-scale diffuse structures (2016)
  • Author(s): Shidatsu M., et al.
  • Organizer: The 6th MAXI international conference 7 years of MAXI: monitoring X-ray transients
  • Place of Presentation: RIKEN (Wako, Japan)
  • Year and Date: 2016-12-05
  • Int'l Joint Research
• [Presentation] An optically-thick disk wind in GRO J1655-40? (2016)
  • Author(s): Shidatsu M.
  • Organizer: ULX and their environments
  • Place of Presentation: Strasbourg, France
  • Year and Date: 2016-06-13
  • Int'l Joint Research
• [Remarks] Research Highlight
  • URL: http://www.riken.jp/en/research/rikenresearch/highlights/20180309_0053/
• [Remarks] Solving the case of the missing x-rays
  • URL: http://www.riken.jp/en/research/rikenresearch/highlights/8330/