電波観測を用いた超巨大ブラックホール成長率の推定と質量成長史の解明

• Project/Area Number: 17J09016
• Research Category: Grant-in-Aid for JSPS Fellows
• Allocation Type: Single-year Grants
• Section: 国内
• Research Field: Astronomy
• Research Institution: National Astronomical Observatory of Japan
• Principal Investigator: 川室 太希 国立天文台, ハワイ観測所, 特別研究員(PD)
• Project Period (FY): 2017-04-26 – 2020-03-31
• Project Status: Completed (Fiscal Year 2019)
• Budget Amount: ¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000); Fiscal Year 2019: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000); Fiscal Year 2018: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000); Fiscal Year 2017: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
• Keywords: 超巨大ブラックホール / 活動銀河核 / X 線 / サブミリ・ミリ波 / 星間ガス / 星形成 / X-ray / submm/mm 波 / ALMA / Chandra / NuSTAR / MAXI

Outline of Annual Research Achievements

前年度から引き続き X 線望遠鏡 Chandra とサブミリ・ミリ波干渉計 ALMA のデータを用いて、質量降着中の超巨大ブラックホール (もしくは、活動銀河核) からの X 線輻射が母銀河に与える影響について研究を行った。前回の天体と違い、今回は、活動銀河核から伸びるジェットの構造が明確に見えている天体であった。そのため、活動銀河核からのジェットと輻射の 2 つの影響の可能性について同時に研究することができた。前回の天体で見られたように、X 線放射領域と冷たい分子ガスの分布は空間的に反相関していることがわかった。X 線放射領域とジェットの方向が異なることから、中心核からの X 線輻射がその領域を形作っていることが示唆された。また、以前の研究と異なり分子ガスの力学的なモデリングを行うことで、分子がどれだけ立体的に広がっているのかを抑え、またそれをもとに密度を求めることに成功した。結果、電離パラメータをもとに、X 線輻射によって分子ガスの反相関が説明できることまで議論できた。
また、前年度の後半から行っていた、X 線望遠鏡 XMM-Newton と NuSTAR を用いた矮小銀河における活動銀河核の存在についての研究も継続した。既存の赤外線の観測では、AGNの存在が間接的に示唆されているものの、X 線を検出することで、直接的にその存在を示した研究はなかった。XMM-Newton を用いることで、軟 X 線 (0.5-10 keV) 放射を有意に受けることができたが、これは活発な星形成活動によって説明できる程度であり、ここから活動銀河核の存在について言及するのが難しいことを明らかにした。また、星形成からの影響がほとんど無い硬 X 帯域の NuSTAR のデータを自ら取得、精査した。結果、有意に硬 X 線放射を受けることが出来ず、更なる追観測が重要であることがわかった。

Research Progress Status

令和元年度が最終年度であるため、記入しない。

Strategy for Future Research Activity

令和元年度が最終年度であるため、記入しない。

Research Products

• [Int'l Joint Research] University of Ulsan College of Medicine(韓国)
• [Int'l Joint Research] Universita degli Studi di Firenze(イタリア)
• [Int'l Joint Research] ASIAA(台湾)
• [Int'l Joint Research] Columbia University(米国)
• [Int'l Joint Research] Gemini South Observatory/Pontificia Universidad Catolica de Chile(Chile)
• [Int'l Joint Research] Max-Planck-Institut(Germany)
• [Int'l Joint Research] University of Texas at San Antonio/Columbia University(米国)
• [Journal Article] Multi-epoch Modeling of TXS 0506+056 and Implications for Long-term High-energy Neutrino Emission (2020)
  • Author(s): Petropoulou Maria、Murase Kohta、Santander Marcos、Buson Sara、Tohuvavohu Aaron、Kawamuro Taiki、Vasilopoulos Georgios、Negoro Hiroshi、Ueda Yoshihiro、Siegel Michael H.、Keivani Azadeh、Kawai Nobuyuki、Mastichiadis Apostolos、Dimitrakoudis Stavros
  • Journal Title: The Astrophysical Journal Volume: 891 Issue: 2 Pages: 115-115
  • DOI: 10.3847/1538-4357/ab76d0
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Subaru Infrared Adaptive Optics-assisted High-spatial-resolution Imaging Search for Luminous Dual Active Galactic Nuclei in Nearby Ultraluminous Infrared Galaxies (2020)
  • Author(s): Imanishi Masatoshi、Kawamuro Taiki、Kikuta Satoshi、Nakano Suzuka、Saito Yuriko
  • Journal Title: The Astrophysical Journal Volume: 891 Issue: 2 Pages: 140-140
  • DOI: 10.3847/1538-4357/ab733e
  • Peer Reviewed
• [Journal Article] Luminosity Ratio between [O iv] 25.89 μm Line and Nuclear Continuum 12 μm as a Diagnostic for “Buried” AGNs (2019)
  • Author(s): Yamada Satoshi、Ueda Yoshihiro、Tanimoto Atsushi、Kawamuro Taiki、Imanishi Masatoshi、Toba Yoshiki
  • Journal Title: The Astrophysical Journal Volume: 876 Issue: 2 Pages: 96-101
  • DOI: 10.3847/1538-4357/ab14f0
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] XCLUMPY: X-Ray Spectral Model from Clumpy Torus and Its Application to the Circinus Galaxy (2019)
  • Author(s): Tanimoto Atsushi、Ueda Yoshihiro、Odaka Hirokazu、Kawaguchi Toshihiro、Fukazawa Yasushi、Kawamuro Taiki
  • Journal Title: The Astrophysical Journal Volume: 877 Issue: 2 Pages: 95-95
  • DOI: 10.3847/1538-4357/ab1b20
  • Peer Reviewed / Open Access
• [Journal Article] A NuSTAR and XMM-Newton Study of the Two Most Actively Star-forming Green Pea Galaxies (SDSS J0749+3337 and SDSS J0822+2241) (2019)
  • Author(s): Kawamuro Taiki、Ueda Yoshihiro、Ichikawa Kohei、Imanishi Masatoshi、Izumi Takuma、Tanimoto Atsushi、Matsuoka Kenta
  • Journal Title: The Astrophysical Journal Volume: 881 Issue: 1 Pages: 48-48
  • DOI: 10.3847/1538-4357/ab2bf6
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] A Chandra and ALMA study of X-ray-irradiated gas in the central < 100 pc of the Circinus galaxy (2019)
  • Author(s): Kawamuro Taiki、Izumi Takuma、Imanishi Masatoshi
  • Journal Title: Publications of the Astronomical Society of Japan Volume: 71 Issue: 4 Pages: 68-86
  • DOI: 10.1093/pasj/psz045
  • Peer Reviewed
• [Journal Article] NuSTAR Discovery of Dead Quasar Engine in Arp 187 (2019)
  • Author(s): Ichikawa Kohei、Kawamuro Taiki、Shidatsu Megumi、Ricci Claudio、Bae Hyun-Jin、Matsuoka Kenta、Shin Jaejin、Toba Yoshiki、Ueda Junko、Ueda Yoshihiro
  • Journal Title: The Astrophysical Journal Letters Volume: 883 Issue: 1 Pages: 13-17
  • DOI: 10.3847/2041-8213/ab3ebf
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] NuSTAR Discovery of a Compton-thick, Dust-obscured Galaxy: WISE J0825+3002 (2019)
  • Author(s): Toba Yoshiki、Yamada Satoshi、Ueda Yoshihiro、Ricci Claudio、Terashima Yuichi、Nagao Tohru、Wang Wei-Hao、Tanimoto Atsushi、Kawamuro Taiki
  • Journal Title: The Astrophysical Journal Volume: 888 Issue: 1 Pages: 8-17
  • DOI: 10.3847/1538-4357/ab5718
  • 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] BAT AGN Spectroscopic Survey. XI. The Covering Factor of Dust and Gas in Swift/BAT Active Galactic Nuclei (2019)
  • Author(s): Ichikawa, K., Ricci, C., Ueda, Y. et al.
  • Journal Title: The Astrophysical Journal Volume: 870 Issue: 1 Pages: 31-31
  • DOI: 10.3847/1538-4357/aaef8f
  • Peer Reviewed / 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] 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] 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] Suzaku Observations of Heavily Obscured (Compton-thick) Active Galactic Nuclei Selected by the Swift/BAT Hard X-Ray Survey (2018)
  • Author(s): Tanimoto Atsushi、Ueda Yoshihiro、Kawamuro Taiki、Ricci Claudio、Awaki Hisamitsu、Terashima Yuichi
  • Journal Title: The Astrophysical Journal Volume: 853 Issue: 2 Pages: 146-171
  • DOI: 10.3847/1538-4357/aaa47c
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Hitomi observation of radio galaxy NGC1275: The first X-ray microcalorimeter spectroscopy of Fe-Kα line emission from an active galactic nucleus (2018)
  • Author(s): Hitomi Collaboration, Aya Bamba, et al.
  • Journal Title: Publications of the Astronomical Society of Japan Volume: 70 Issue: 2 Pages: 13-13
  • DOI: 10.1093/pasj/psx147
  • 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] 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] N uSTAR Hard X-Ray Data and Gemini 3D Spectra Reveal Powerful AGN and Outflow Histories in Two Low-redshift Lyα Blobs (2017)
  • Author(s): Kawamuro Taiki、Schirmer Mischa、Turner James E. H.、Davies Rebecca L.、Ichikawa Kohei
  • Journal Title: The Astrophysical Journal Volume: 848 Issue: 1 Pages: 42-42
  • DOI: 10.3847/1538-4357/aa8e46
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] The Complete Infrared View of Active Galactic Nuclei from the 70 Month Swift/BAT Catalog (2017)
  • Author(s): Ichikawa, K., Ricci, C., Ueda, Y., Matsuoka, K., Toba, Y., Kawamuro, T., Trakhtenbrot, B., Koss, M. J.
  • Journal Title: The Astrophysical Journal Volume: 835 Issue: 1 Pages: 1-19
  • DOI: 10.3847/1538-4357/835/1/74
  • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
• [Presentation] An X-ray study of two Green Pea galaxies (2020)
  • Author(s): 川室 太希
  • Organizer: 日本天文学会2020年春季年会
• [Presentation] X 線と電波の高空間分解能データで探る AGN 周辺 < 100 pc スケールの構造 (2019)
  • Author(s): 川室 太希
  • Organizer: AGN 核周領域とその関連研究
  • Invited
• [Presentation] A Chandra and ALMA Study of X-ray-irradiated Gas in the Central 100 pc of the Circinus Galaxy (2019)
  • Author(s): Kawamuro, Taiki
  • Organizer: X-ray Astronomy 2019
  • Int'l Joint Research
• [Presentation] A Chandra and ALMA Study of X-ray-irradiated Gas in the Central 100 pc of the Circinus Galaxy (2019)
  • Author(s): Kawamuro, Taiki
  • Organizer: XCalibur2019
  • Int'l Joint Research
• [Presentation] A Chandra and ALMA Study of X-ray-irradiated Gas in the Central 100 pc of the Circinus Galaxy (2019)
  • Author(s): Kawamuro, Taiki
  • Organizer: Supermassive Black Holes: Environment and Evolution
  • Int'l Joint Research
• [Presentation] 広帯域 X 線観測で探る星潮汐破壊現象 (2019)
  • Author(s): 川室太希
  • Organizer: 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] A Chandra and ALMA Study of X-ray-irradiated Gas in the Central 100 pc of the Circinus Galaxy (2019)
  • Author(s): Kawamuro T.
  • Organizer: East Asia AGN workshop 2019
  • Int'l Joint Research
• [Presentation] Study of X-ray Irradiated ISM around Circinus Galaxy Nucleus with Chandra and ALMA (2018)
  • Author(s): 川室太希
  • Organizer: 第 5 回 銀河進化研究会
• [Presentation] Chandra and ALMA Study of X-ray Irradiated Inter Stellar Media in the Central 100 pc of Circinus Galaxy (2018)
  • Author(s): 川室太希
  • Organizer: 日本天文学会 2018 秋季年会
• [Presentation] HSC and eROSITA AGN Study from an X-ray Perspective (2018)
  • Author(s): Kawamuro T.
  • Organizer: Formation and evolution of SMBHs revealed by ‘Wide field’, ‘Multi-wavelength’, and ‘Transient’ surveys with HSC
  • Int'l Joint Research / Invited
• [Presentation] Study of X-ray Irradiated Inter Stellar Medium in Ciricnus Galaxy Nucleus at 10 pc resolution with Chandra and ALMA (2018)
  • Author(s): Kawamuro T.
  • Organizer: 15th Potsdam Thinkshop
  • Int'l Joint Research
• [Presentation] Suzaku Observations of Moderately Obscured (Compton-thin) Active Galactic Nuclei Selected by Swift/BAT Hard X-ray Survey (2018)
  • Author(s): Kawamuro T.
  • Organizer: Torus 2018
  • Int'l Joint Research
• [Presentation] NuSTAR と Gemini/GMOS IFS による近傍 (z ~ 0.3) LABs に存在する吸収を受けたAGNの観測 (2018)
  • Author(s): 川室 太希
  • Organizer: 「超巨大ブラックホール研究推進連絡会」第５回WS
• [Presentation] MAXI/GSC の 7 年間データによる高銀緯 X 線カタログの作成 (2018)
  • Author(s): 川室 太希
  • Organizer: 第17回高宇連研究会「ひとみ衛星の成果と将来への展望」
• [Presentation] 7 年間のデータに基づく MAXI/GSC 高銀緯天体カタログ第三版の作成 (2018)
  • Author(s): 川室 太希
  • Organizer: 春季天文学会
• [Presentation] NuSTAR と Gemini/GMOS IFS による近傍 Lyα blob (z~0.3) の観測 (2018)
  • Author(s): 川室 太希
  • Organizer: 春季天文学会
• [Presentation] Chandra と ALMA で探る Circinus galaxy 中心 < 100 pc のガスの性質 (2018)
  • Author(s): 川室 太希
  • Organizer: 宇宙電波懇談会シンポジウム FY2017「未来を拓く技術開発とその将来展望」
• [Presentation] X線観測による近傍宇宙の埋もれたAGNの探査 (2017)
  • Author(s): 川室 太希
  • Organizer: 第一回 missing black hole ワークショップ
  • Invited
• [Presentation] Suzaku Observations of Moderately Obscured (Compton-thin) Active Galactic Nuclei Selected by Swift/BAT Hard X-ray Survey (2017)
  • Author(s): Taiki Kawamuro
  • Organizer: ELUSIVE AGN IN THE NEXT ERA
  • Int'l Joint Research
• [Presentation] AGN nuclear structure studied by X-ray spectral analysis, and the relevance to the surrounding ionized gas (2017)
  • Author(s): Taiki Kawamuro
  • Organizer: East Asian Young Astronomers Meeting 2017
  • Int'l Joint Research
• [Presentation] AGN nuclear structure studied by X-ray spectral analysis, and the relevance to the surrounding ionized gas (2017)
  • Author(s): Taiki Kawamuro
  • Organizer: East Asia AGN workshop 2017
  • Int'l Joint Research