Mass accretion process onto central engine of active galactic nuclei

• Project/Area Number: 23540268
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Astronomy
• Research Institution: National Astronomical Observatory of Japan (2012-2013); Kagoshima University (2011)
• Principal Investigator: KAMENO Seiji 国立天文台, チリ観測所, 教授 (20270449)
• Co-Investigator(Renkei-kenkyūsha): OHSUGA Ken 国立天文台, 理論研究部, 助教 (90386508) ; TERASHIMA Yuichi 愛媛大学, 大学院・理工学研究科, 教授 (20392813) ; NAGAO Toru 愛媛大学, 宇宙進化研究センター, 教授 (00508450) ; SUSA Hajime 甲南大学, 理工学部, 教授 (00323262)
• Project Period (FY): 2011 – 2013
• Project Status: Completed (Fiscal Year 2013)
• Budget Amount: ¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000); Fiscal Year 2013: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000); Fiscal Year 2012: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000); Fiscal Year 2011: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
• Keywords: 活動銀河 / ブラックホール / 質量降着 / 電波天文学 / 光赤外線天文学 / X線天文学

Research Abstract

Active Galactic Nuclei (AGNs) are powered by accretion matter onto Super Massive Black Hole (SMBH) in the galactic centers. To clarify the origin of accretion matter, physical condition, and angular momentum transfer mechanism, we observed molecular gas, dust, and plasma in 10-pc-scale vicinity of nearby AGNs. ALMA observations of CO (J=2-1) toward Cen A revealed (1) molecular gas disk that follows galactic rotation, (2) S-shaped filamentary gas stream toward 20-pc circumnuclear region, and (3) compact gas condensation which show rapid rotation within 20 pc. Since the rotation is similar to SMBH-bound stellar velocity field, we consider that these stars are formed in the condensed molecular gas and its dynamical friction would work for angular momentum transfer.
We also found variation of maser emission synchronized with jet eruption in NGC 1052, identified radio component of gamma-ray flare source in 3C 84, etc.

Research Products

• [Journal Article] The core shift measurements for two-sided jets affected by Free-Free ab sorption using VLBA (2013)
  • Author(s): Haga, T., Doi, A., Murata, Y., Sudou, H., Kameno, S., Hada, K., Nagai, H.
  • Journal Title: The European Physical Journal Web of Conferences Volume: 61 Pages: 080041-080046
  • DOI: 10.1051/epjconf/20136108004
  • Peer Reviewed
• [Journal Article] Outflow Launching Mechanisms (2013)
  • Author(s): Ohsuga, K., Mineshige, S
  • Journal Title: Space Science Reviews Volume: Vol.88 Issue: 1-4 Pages: 353-369
  • DOI: 10.1007/s11214-013-0017-3
  • Peer Reviewed
• [Journal Article] Development of 32-m Radio Telescopes for Monitoring Observations of Methanol Masers, H_2O Masers, and Radio Continuum (2013)
  • Author(s): Yonekura, Y., Saito, Y., Saito, T., Mori, T., Soon, K. L., Momose, M., Yokosawa, M., Ogawa, H., Fujisawa, K., Sugiyama, K., Motogi, K., Takaba, H., Sorai, K., Nakai, N., Kameno, S., Kobayashi, H., Kawaguchi, N., Hachisuka, K
  • Journal Title: Astronomical Society of the Pacific Conference Series Volume: Vol.476 Pages: 415-415
• [Journal Article] ALMA Extended Array (2013)
  • Author(s): Kameno, S., Nakai, N., Honma, M
  • Journal Title: Astronomical Society of the Pacific Conference Series Volume: Vol.476 Pages: 409-409
• [Journal Article] Optimization by Smoothed Bandpass Calibration in Radio Spectroscopy (2013)
  • Author(s): Kameno, S., Yamaki, H., Mizuno, I., Beppu, H., Imai, H., Kuno, N., Akashi, T
  • Journal Title: Astronomical Society of the Pacific Conference Series Volume: Vol.476 Pages: 407-407
  • NAID: 10031122925
• [Journal Article] A New 45 GHz Band Receiver with Dual Polarization for NRO 45-m Telescope (2013)
  • Author(s): Tokuda, K., Kozu, M., Kimura, K., Muraoka, K., Maezawa, H., Onishi, T., Ogawa, H., Nakamura, F., Kuno, N., Takano, S., Iono, D., Kawabe, R., Kameno, S
  • Journal Title: Astronomical Society of the Pacific Conference Series Volume: Vol.476 Pages: 403-403
• [Journal Article] Jet Kinematics and Absorbing Matter in the Quasar 1413+135 (2013)
  • Author(s): Lee, M., Hiwaki, H., Kameno, S
  • Journal Title: Astronomical Society of the Pacific Conference Series Volume: Vol.476 Pages: 291-291
• [Journal Article] The CCS 45 GHz Zeeman Project: Magnetic Field Measurements Towards Prestellar Cores (2013)
  • Author(s): Nakamura, F., Ogawa, H., Kameno, S., Kimura, K., Mizuno, I., Tokuda, K., Kozu, M., Tanaka, T., Iono, D., Takano, S., Dobashi, K., Matsumoto, T., Kuno, N., Kawabe, R., Onishi, T., Momose, M., Shinnaga, H., Yamamoto, S., Maezawa, H., Hirota, T
  • Journal Title: Astronomical Society of the Pacific Conference Series Volume: Vol.476 Pages: 239-239
• [Journal Article] VLBI Imagings of a Kilo-Parsec Knot in 3C 380 (2013)
  • Author(s): Koyama, S., Kino, M., Nagai, H., Hada, K., Kameno, S., Kobayashi , H.
  • Journal Title: Publications of the Astronomical Society of Japan Volume: 65 Issue: 2 Pages: 29-35
  • DOI: 10.1093/pasj/65.2.29
  • Peer Reviewed
• [Journal Article] Nuclear Radio Jet from a Low-luminosity Active Galactic Nucleus in NGC 4258 (2013)
  • Author(s): Doi, A., Kohno, K., Nakanishi, K., Kameno, S., Inoue, M., Hada, K., Sorai, K
  • Journal Title: The Astrophysical Journal Volume: Vol.765 Issue: 1 Pages: 63-63
  • DOI: 10.1088/0004-637x/765/1/63
  • Peer Reviewed
• [Journal Article] The CCS 45 GHz Zeeman Project: Magnetic Field Measurements Towards Prestellar Cores (2013)
  • Author(s): Nakamura, F.; Ogawa, H.; Kameno, S.; Kimura, K.; Mizuno, I.; Tokuda, K.; Kozu, M.; Tanaka, T.; Iono, D.; Takano, S.; Dobashi, K.; Matsumoto, T.; Kuno, N.; Kawabe, R.; Onishi, T.; Momose, M.; Shinnaga, H.; Yamamoto, S.; Maezawa, H.; Hirota, T.
  • Journal Title: ASP Conference Series Volume: 476 Pages: 239-242
• [Journal Article] Jet Kinematics and Absorbing Matter in the Quasar 1413+135 (2013)
  • Author(s): Lee, M.; Hiwaki, H.; Kameno, S.
  • Journal Title: ASP Conference Series Volume: 476 Pages: 291-292
• [Journal Article] A New 45 GHz Band Receiver with Dual Polarization for NRO 45-m Telescope (2013)
  • Author(s): Tokuda, K.; Kozu, M.; Kimura, K.; Muraoka, K.; Maezawa, H.; Onishi, T.; Ogawa, H.; Nakamura, F.; Kuno, N.; Takano, S.; Iono, D.; Kawabe, R.; Kameno, S.
  • Journal Title: ASP Conference Series Volume: 476 Pages: 403-406
• [Journal Article] Optimization by Smoothed Bandpass Calibration in Radio Spectroscopy (2013)
  • Author(s): Kameno, S.; Yamaki, H.; Mizuno, I.; Beppu, H.; Imai, H.; Kuno, N.; Akashi, T.
  • Journal Title: ASP Conference Series Volume: 476 Pages: 407-408
  • NAID: 10031122925
• [Journal Article] ALMA Extended Array (2013)
  • Author(s): Kameno, S.; Nakai, N.; Honma, M.
  • Journal Title: ASP Conference Series Volume: 476 Pages: 409-410
• [Journal Article] Development of 32-m Radio Telescopes for Monitoring Observations of Methanol Masers, H2O Masers, and Radio Continuum (2013)
  • Author(s): Yonekura, Y.; Saito, Y.; Saito, T.; Mori, T.; Soon, K. L.; Momose, M.; Yokosawa, M.; Ogawa, H.; Fujisawa, K.; Sugiyama, K.; Motogi, K.; Takaba, H.; Sorai, K.; Nakai, N.; Kameno, S.; Kobayashi, H.; Kawaguchi, N.; Hachisuka, K.
  • Journal Title: ASP Conference Series Volume: 476 Pages: 415-416
• [Journal Article] Optimization by Smoothed Bandpass Calibration in Radio Spectroscopy (2012)
  • Author(s): Yamaki, H., Kameno, S., Beppu, H., Mizuno, I., Imai, H
  • Journal Title: Publications of the Astronomical Society of Japan Volume: Vol.64 Issue: 5 Pages: 118-118
  • DOI: 10.1093/pasj/64.5.118
  • NAID: 10031122925
  • Peer Reviewed
• [Journal Article] VLBI and single-dish monitoring of 3C 84 for the period 2009-2011 (2012)
  • Author(s): Nagai, H., Orienti, M., Kino, M., Suzuki, K., Giovannini, G., Doi, A., Asada, K., Giroletti, M., Kataoka, J., D'Ammando, F., Inoue, M., Lähteenäki, A., Tornikoski, M., León -Tavares, J., Kameno, S., Bach, U
  • Journal Title: Monthly Notices of the Royal Astronomical Society Volume: Vol.423 Issue: 1 Pages: L122-L126
  • DOI: 10.1111/j.1745-3933.2012.01269.x
  • Peer Reviewed
• [Journal Article] A Candidate Active Galactic Nucleus with a Pure Soft Thermal X-Ray Spectrum (2012)
  • Author(s): Terashima, Y., Kamizasa, N., Awaki, H., Kubota, A., Ueda, Y.
  • Journal Title: Astrophys. J. Volume: 752 Issue: 2 Pages: 154-154
  • DOI: 10.1088/0004-637x/752/2/154
  • Peer Reviewed
• [Journal Article] ALMA reveals a chemically evolved submillimeter galaxy at z = 4.76 (2012)
  • Author(s): Nagao, T., Maiolino, R., De Breuck, C., Caselli, P., Hatsukade, B., Saigo, K
  • Journal Title: Astronomy and Astrophysics Volume: Vol.542 Pages: L34-L34
  • DOI: 10.1051/0004-6361/201219518
  • Peer Reviewed
• [Journal Article] Exploring the Central Sub-parsec Region of the γ-Ray Bright Radio Galaxy 3C 84 with VLBA at 43 GHz in the Period of 2002-2008 (2012)
  • Author(s): Suzuki, K., Nagai, H., Kino, M., Kataoka, J., Asada, K., Doi, A., Inoue, M., Orienti, M., Giovannini, G., Giroletti, M., Lähteenäki, A., Tornikoski, M., León-Tavares, J., Bach, U., Kameno, S., Kobayashi, H
  • Journal Title: The Astrophysical Journal Volume: Vol. 746 Issue: 2 Pages: 140-140
  • DOI: 10.1088/0004-637x/746/2/140
  • Peer Reviewed
• [Journal Article] Optimization by Smoothed Bandpass Calibration in Radio Spectroscopy (2012)
  • Author(s): Yamaki, Haruka; Kameno, Seiji; Beppu, Hirohisa; Mizuno, Izumi; Imai, Hiroshi
  • Journal Title: Publications of the Astronomical Society of Japan Volume: 64
  • NAID: 10031122925
  • Peer Reviewed
• [Journal Article] Millimeter Radio Continuum Emissions as the Activity of Supermassive Black Holes in Nearby Early-type Galaxies and Low-luminosity Active Galactic Nuclei (2011)
  • Author(s): Doi, A., et al.
  • Journal Title: The Astronomical Journal Volume: 142 Issue: 5 Pages: 167-167
  • DOI: 10.1088/0004-6256/142/5/167
  • Peer Reviewed
• [Journal Article] GlobalStructure of Three Distinct AccretionFlows and Outflows around Black Holesfrom Two-dimensional Radiationmagnetohydrodynamic Simulations (2011)
  • Author(s): Ohsuga, K., Mineshige, S
  • Journal Title: ApJ Volume: 738 Issue: 1 Pages: 2-2
  • DOI: 10.1088/0004-637x/736/1/2
  • Peer Reviewed
• [Presentation] ソフトウェア偏波分光計 PolariS の開発III --- GPU を用いた分光処理 (2013)
  • Author(s): 亀野誠二
  • Organizer: 日本天文学会 2013 年秋季年会
  • Place of Presentation: 東北大学, 宮城県
• [Presentation] 電波分光観測の効率化 IV --- 高感度スプリアス検出と抑圧 (2013)
  • Author(s): 亀野誠二
  • Organizer: 日本天文学会 2013 年秋季年会
  • Place of Presentation: 東北大学, 宮城県
• [Presentation] ALMA Extended Array (2013)
  • Author(s): Kameno, S.
  • Organizer: EA ALMA Development Workshop
  • Place of Presentation: 国立天文台（東京都）
• [Presentation] ALMA Extended Array (2013)
  • Author(s): Kameno, S.
  • Organizer: ALMA Workshop on Long Baseline and Phase Correction
  • Place of Presentation: 国立天文台（東京都）
• [Presentation] 電波分光観測の効率化IV - 高感度スプリアス検出と抑圧 (2013)
  • Author(s): 亀野誠二, Maurizio Miccolis, 杉本正宏
  • Organizer: 日本天文学会2013秋季年会
  • Place of Presentation: 東北大学（宮城県）
• [Presentation] ソフトウェア偏波分光計PolariSの開発III - GPUを用いた分光処理 (2013)
  • Author(s): 亀野誠二, 水野いづみ, 加納周, 黒尾信
  • Organizer: 日本天文学会2013秋季年会
  • Place of Presentation: 東北大学（宮城県）
• [Presentation] 電波分光観測の効率化 III--- NRO45m鏡での検証とシステム変動の較正 (2012)
  • Author(s): 亀野誠二
  • Organizer: 日本天文学会 2012 年秋季年会
  • Place of Presentation: 大分大学, 大分県
• [Presentation] ソフトウェア分光計 PolariS の開発 (2012)
  • Author(s): 亀野誠二
  • Organizer: 日本天文学会 2012 年秋季年会
  • Place of Presentation: 大分大学, 大分県
• [Presentation] Optimization of Bandpass Calibration for Radio Spectroscopy (2012)
  • Author(s): 亀野誠二
  • Organizer: East Asia VLBI Workshop 2012 年
  • Place of Presentation: Academia Sinica Institute of Astronomy and Astrophysics, 台湾
• [Presentation] Digital Signal Processing for Accurate Calibration (2012)
  • Author(s): 亀野誠二
  • Organizer: East Asia VLBI Workshop 2012 年
  • Place of Presentation: Academia Sinica Institute of Astronomy and Astrophysics, 台湾
• [Presentation] Digital signal processing for accurate calibration (2012)
  • Author(s): Seiji Kameno
  • Organizer: East Asia VLBI Workshop 2012
  • Place of Presentation: ASIAA（台湾）
• [Presentation] Optimization of Bandpass Calibration in Radio Spectroscopy (2012)
  • Author(s): Seiji Kameno
  • Organizer: East Asia VLBI Workshop 2012
  • Place of Presentation: ASIAA（台湾）
• [Presentation] ALMA Extended Array (2012)
  • Author(s): Seiji Kameno
  • Organizer: East Asia VLBI Workshop 2012
  • Place of Presentation: ASIAA（台湾）
• [Presentation] Jet Kinematics and Absorbing Matter in the Quasar 1413+135 (2012)
  • Author(s): Minju Lee, Haruka Hiwaki, Seiji Kameno
  • Organizer: New Trends in Radio Astronomy in the ALMA Era
  • Place of Presentation: ザ・プリンス箱根（神奈川県）
• [Presentation] Optimization by Smoothed Bandpass Calibration in Radio Spectroscopy (2012)
  • Author(s): Seiji Kameno
  • Organizer: New Trends in Radio Astronomy in the ALMA Era
  • Place of Presentation: ザ・プリンス箱根（神奈川県）
• [Presentation] ALMA Extended Array (2012)
  • Author(s): Seiji Kameno
  • Organizer: New Trends in Radio Astronomy in the ALMA Era
  • Place of Presentation: ザ・プリンス箱根（神奈川県）
• [Presentation] ソフトウェア分光計PolariSの開発 (2012)
  • Author(s): 亀野誠二
  • Organizer: 日本天文学会2012年秋季年会
  • Place of Presentation: 大分大学（大分県）
• [Presentation] 電波分光観測の効率化III - NRO45m鏡での検証とシステム変動の較正 (2012)
  • Author(s): 亀野誠二
  • Organizer: 日本天文学会2012年秋季年会
  • Place of Presentation: 大分大学（大分県）
• [Presentation] ALMA拡張アレイ (2012)
  • Author(s): 亀野誠二
  • Organizer: 宇宙電波懇談会シンポジウム2012
  • Place of Presentation: 国立天文台（東京都）
• [Presentation] ALMA 拡張アレイ (2011)
  • Author(s): 亀野誠二
  • Organizer: 宇宙電波懇談会シンポジウム 2011 年
  • Place of Presentation: 大阪府立大学, 大阪府
• [Presentation] Optimization of Bandpass Calibration in Radio Spectroscopy (2011)
  • Author(s): 亀野誠二
  • Organizer: ALMA EA Development Workshop 2011 年
  • Place of Presentation: 国立天文台, 東京都
• [Presentation] Statistics of Digital Signals for Accurate Amplitude Calibration (2011)
  • Author(s): 亀野誠二
  • Organizer: ALMA EA Development Workshop 2011 年
  • Place of Presentation: 国立天文台, 東京都
• [Presentation] ALMA Extended Array (2011)
  • Author(s): 亀野誠二
  • Organizer: ALMA EA Development Workshop 2011 年
  • Place of Presentation: 国立天文台, 東京都
• [Presentation] 電波分光観測の効率化 II---平滑化窓とスキャンパララメーターの一般化 (2011)
  • Author(s): 亀野誠二, 山木春霞
  • Organizer: 日本天文学会 2011 年秋季年会
  • Place of Presentation: 鹿児島大学, 鹿児島県
• [Presentation] 電波分光観測の効率化II --- 平滑化窓とスキャンパラメーターの一般化 (2011)
  • Author(s): 亀野誠二、山木春霞
  • Organizer: 日本天文学会
  • Place of Presentation: 鹿児島大学
• [Presentation] ALMA Extended Array (2011)
  • Author(s): 亀野誠二
  • Organizer: ALMA EA Development WorkShop 2011(招待講演)
  • Place of Presentation: 国立天文台（東京都三鷹市）
• [Presentation] Statistics of digital signals for accurate amplitude calibration (2011)
  • Author(s): 亀野誠二
  • Organizer: ALMA EA Development WorkShop 2011
  • Place of Presentation: 国立天文台（東京都三鷹市）
• [Presentation] Optimization of Bandpass Calibration in Radio Spectroscopy (2011)
  • Author(s): 亀野誠二
  • Organizer: ALMA EA Development WorkShop 2011
  • Place of Presentation: 国立天文台（東京都三鷹市）
• [Presentation] ALMA拡張アレイ (2011)
  • Author(s): 亀野誠二
  • Organizer: 宇宙電波懇談会シンポジウム2011(招待講演)
  • Place of Presentation: 東京大学小柴ホール（東京都文京区）
• [Remarks]
  • URL: http://milkyway.sci.kagoshima-u.ac.jp/~kameno/GBT/
• [Remarks]
  • URL: http://milkyway.sci.kagoshima-u.ac.jp/~kameno/GPSsurvey/