The Origin of Stellar Populations in Primeval Elliptical Galaxies at Redshift z～2
| Project/Area Number |
19540245
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Astronomy
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| Research Institution | National Astronomical Observatory of Japan |
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Principal Investigator |
ARIMOTO Nobuo National Astronomical Observatory of Japan, 光赤外研究部, 教授 (60242096)
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| Project Period (FY) |
2007 – 2009
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| Project Status |
Completed (Fiscal Year 2009)
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| Budget Amount *help |
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2009: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2008: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2007: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
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| Keywords | 楕円銀河 / 銀河形成 / 銀河進化 / 星の種族 / 星生成 / 矮小銀河 / 球状星団系 / BzK銀河 |
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| Research Abstract |
We have used the Subaru Telescope to take infrared spectra of a very distant, unusually bright, and massive elliptical galaxy. In contrast with previous studies, this galaxy appears to be similar to its cousins in the local Universe. Its size appears to be normal for its mass, and its velocity dispersion is consistent with its large size. This research deepens the puzzle as to how and why some elliptical galaxies seem to reach their full size very early in the evolution of the Universe while other, very compact ones increase in volume a hundredfold over time.
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Report
(4 results)
Research Products
(29 results)
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[Journal Article] A z=1.82 Analog of Local Ultra-massive Elliptical Galaxies2010
Author(s)
Onodera, M., Daddi, E., Gobat, R., Cappellari, M., Arimoto, N., Renzini, A., Yamada, Y., McCracken, H.J., Mancini, C., Capak, P., 12 coauthors
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Related Report
Peer Reviewed
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[Journal Article] A Wide Area Survey for High-reedshift Massive Galaxies. II. Near-infrared Spectroscopy of BzK-selected Massive Star-forming Galaxies2010
Author(s)
Onodera, M., Arimoto, N., Daddi, E., Renzini, A., Kong, X., Cimatti, A., Broadhurst, T., Alexander, D.
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Journal Title
Related Report
Peer Reviewed
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[Journal Article] The Globular Cluster System of the Virgo Giant Elliptical Galaxy NGC4636. II. Kinematics of the Globular Cluster System2010
Author(s)
Lee, M.G., Park, H.S., Hwang, H.S., Arimoto, N., Tamura, N., Onodera, M.
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Peer Reviewed
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[Journal Article] The Globular Cluster System of the Virgo Giant Elliptical Galaxy NGC4636. I. Subaru/Faint Object Camera and Spectrograph Spectroscopy and Database2010
Author(s)
Lee, M.G., Park, H.S., Hwang, H.S., Arimoto, N., Tamura, N., Onodera, M.
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Peer Reviewed
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[Journal Article] Resolving the Stellar Outskirts of M81 : Evidence for a Fain, Extended Structural Component2009
Author(s)
Barker, M.K., Ferguson, A.M.M N., Irwin, M., Arimoto, N., Jablonka, P.
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Related Report
Peer Reviewed
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[Journal Article] Chemical composition of extremely metal-poor stars in the Sextans dwarf spheroidal galaxy2009
Author(s)
Aoki, W., Arimoto, N., Sadakane, K., Tolstoy, E., Battaglia, G., Jablonka, P., Shetrone, M., Letarte, B., Irwin, M., Hill, V., 8 coauthors
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Peer Reviewed
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[Journal Article] On the nature of red galaxies : the Chandra perspective2009
Author(s)
Campisi, M.A., Vignali, C., Brusa, M., Daddi, E., Comastri, A., Pozzetti, L., Alexander, D.M., Renzini, A., Arimoto, N., Kong, X.
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Peer Reviewed
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[Journal Article] Kinemetry of SINS High-Redshift Star-Forming Galaxies: Distinguishing Rotating Disks From Major Mergers2008
Author(s)
Shapiro, K.L, Genzel, R., Arimoto, N., Renzini, A., Daddi, E., Kong, X., Cimatti, A., et. al.
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Journal Title
Astrophysical Journal (印刷中)
Related Report
Peer Reviewed
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