The emergence of the supermassive black hole-galaxy mass relations at z > 1
Project/Area Number |
18H01251
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Research Category |
Grant-in-Aid for Scientific Research (B)
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Allocation Type | Single-year Grants |
Section | 一般 |
Review Section |
Basic Section 16010:Astronomy-related
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Research Institution | The University of Tokyo |
Principal Investigator |
Silverman John 東京大学, カブリ数物連携宇宙研究機構, 教授 (90573030)
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Project Period (FY) |
2018-04-01 – 2021-03-31
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Project Status |
Completed (Fiscal Year 2022)
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Budget Amount *help |
¥15,210,000 (Direct Cost: ¥11,700,000、Indirect Cost: ¥3,510,000)
Fiscal Year 2020: ¥6,370,000 (Direct Cost: ¥4,900,000、Indirect Cost: ¥1,470,000)
Fiscal Year 2019: ¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2018: ¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
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Keywords | supermassive black holes / near-infrared / galaxy evolution / coevolution / HST / Infrared / host galaxies / Astrophysics / quasars / Optical / optical / high redshift / Supermassive black holes / AGN / AGN evolution |
Outline of Final Research Achievements |
We have determined the relation between black hole mass and stellar mass of quasar host galaxies out to z ~ 2 using the Hubble Space Telescope and the Subaru telescope. We find that the mass ratio is nearly constant (i.e., non-evolving) over the last 8 billion years of the universe. This is supported by the analysis of 584 quasars from the Sloan Digital Sky Survey which have their host galaxies imaged by the Hyper Suprime-Cam Subaru Strategic Program. We also found for the first time that the dispersion in the mass ratio is nearly constant and in agreement with simulations which include quasar feedback to regulate their joint mass growth. Overall, we find that supermassive black holes and their host galaxies are growing together in a co-evolutionary manner, likely by sharing a common fuel supply which simultaneously provides gas to form new stars, builds up the central stellar mass concentration, and accretes onto the central black hole.
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Academic Significance and Societal Importance of the Research Achievements |
本課題において,国際的な論文誌にて複数の論文を出版した.また,国際学会においても研究成果の発表を行った.結果として,本研究は初期宇宙におけるクェーサー母銀河の研究に高い影響を与え,ジェームズウェッブ宇宙望遠鏡なども用いた該当分野の研究を国際的にリードしている.
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Report
(4 results)
Research Products
(22 results)
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[Journal Article] Optical Spectroscopy of Dual Quasar Candidates from the Subaru HSC-SSP program2021
Author(s)
Tang S.、Silverman J.D.、Ding X.、Li J.、Lee K.-G.、Strauss M.A.、Goulding A.、Schramm M.、Kawinwanichakij L.、Xavier P.J.、Hennawi J.F.、Imanishi M.、Iwasawa K.、Toba Y.、Kayo I.、Oguri M.、Matsuoka Y.、Onoue M.、Jahnke K.、Ichikawa K.、Hartwig T.、Kashikawa N.、Kawaguchi Toshihiro、et al.
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Journal Title
The Astrophysical Journal
Volume: 922
Issue: 1
Pages: 83-83
DOI
Related Report
Peer Reviewed / Open Access / Int'l Joint Research
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[Journal Article] Dual Supermassive Black Holes at Close Separation Revealed by the Hyper Suprime-Cam Subaru Strategic Program2020
Author(s)
Silverman J.D., Tang S., Lee K.-G., T. Hartwig, A. Goulding, M.A. Strauss, M. Schramm, X. Ding, R. Riffel, S. Fujimoto, C. Hikage, M. Imanishi, K. Iwasawa, K. Jahnke, I. Kayo, N. Kashikawa, T. Kawaguchi, 他16名
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Journal Title
The Astrophysical Journal
Volume: 899
Issue: 2
Pages: 154-154
DOI
Related Report
Peer Reviewed / Open Access / Int'l Joint Research
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