Dust-free Insight into the Obscured Cosmic Accretion History and Modes of Galaxy Assembly
Project/Area Number |
15K17604
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Research Category |
Grant-in-Aid for Young Scientists (B)
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Allocation Type | Multi-year Fund |
Research Field |
Astronomy
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Research Institution | The University of Tokyo |
Principal Investigator |
RUJOPAKARN WIPHU 東京大学, カブリ数物連携宇宙研究機構, 客員科学研究員 (60731776)
|
Project Period (FY) |
2015-04-01 – 2018-03-31
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Project Status |
Completed (Fiscal Year 2017)
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Budget Amount *help |
¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
Fiscal Year 2016: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2015: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
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Keywords | galaxy evolution / galaxy assembly / star formation / active galactic nuclei / SF - AGN coevolution / Galaxy Evolution / Galactic Bulge Formation / Star Formation / SMBH Growth / Radio Astronomy / Ultra-deep sky survey |
Outline of Final Research Achievements |
The support from this program has enabled successful analysis and dissemination of results from the most sensitive astronomical survey at radio frequencies ever conducted. We used the Very Large Array radio observatory to conduct 2 - 8 GHz imaging of the Hubble Ultra-Deep Field at the sensitivities required to capture star-forming galaxies at z ~ 1-3, the peak epoch of galaxy assembly. We found that (1) the typical morphology of star formation (SF) in rapidly assembling galaxies at redshift z ~ 2 to be disk-wide, consistent with the scenario that galaxies assemble most of their stellar mass via accretion of cold gas, which leads to gas-rich, unstable disks and in-situ disk-wide star formation; and that (2) the active galactic nuclei (AGN) and SF are co-spatial at z ~ 3, consistent with a picture of in-situ galactic bulge and MBH growth. The program has spurred multiple new observing campaigns to definitively characterize the SF morphologies and the co-spatial nature of SF and AGN.
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Report
(4 results)
Research Products
(30 results)
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[Journal Article] The SXDF-ALMA 2-arcmin^2 Deep Survey: Stacking Rest-frame Near-infrared Selected Objects2016
Author(s)
Wang W.-H., Kohno K., Hatsukade B., Umehata H., Aretxaga I., Hughes D., Caputi K. I., Dunlop J. S., Ikarashi S., Iono D., Ivison R. J., Lee M., Makiya R., Matsuda Y., Motohara K., et al.
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Journal Title
The Astrophysical Journal
Volume: 833
Issue: 2
Pages: 195-195
DOI
Related Report
Peer Reviewed / Int'l Joint Research
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[Journal Article] SXDF-ALMA 2 arcmin2 deep survey: Resolving and characterizing the infrared extragalactic background light down to 0.5 mJy2016
Author(s)
Yamaguchi, Yuki; Tamura, Yoichi; Kohno, Kotaro; Aretxaga, Itziar; Dunlop, James S.; Hatsukade, Bunyo; Hughes, David; Ikarashi, Soh; Ishii, Shun; Ivison, Rob J.; Izumi, Takuma; Kawabe, Ryohei; Kodama, Tadayuki; Lee, Minju et al.
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Journal Title
PASJ
Volume: 68
Issue: 5
Pages: 82-96
DOI
Related Report
Peer Reviewed / Int'l Joint Research
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[Journal Article] A complete census of Herschel-detected infrared sources within the HST Frontier Fields2016
Author(s)
Rawle, T. D.; Altieri, B.; Egami, E.; Perez-Gonzalez, P. G.; Boone, F.; Clement, B.; Ivison, R. J.; Richard, J.; Rujopakarn, W.; Valtchanov, I.; Walth, G.; Weiner, B. J.; Blain, A. W.; Dessauges-Zavadsky, M.; Kneib, J.-P.; Lutz, D.; Rodighiero, G.; Schaerer, D.; Smail, I.
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Journal Title
Monthly Notices of the Royal Astronomical Society
Volume: -
Issue: 2
Pages: 1626-1645
DOI
Related Report
Peer Reviewed / Int'l Joint Research
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[Journal Article] Suppressing star formation in quiescent galaxies with supermassive black hole winds2016
Author(s)
Edmond Cheung, Kevin Bundy, Sebastien Peirani, Wiphu Rujopakarn, Kyle Westfall, Michele Cappellari, Renbin Yan, Matthew Bershady, Jenny E. Greene, Timothy M. Heckman, Niv Drory, David R. Law, Karen L. Masters, Daniel Thomas, David A. Wake, Anne-Marie Weijmans, Kate Rubin, Francesco Belfiore, et al.
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Journal Title
Related Report
Peer Reviewed / Int'l Joint Research
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[Journal Article] A higher efficiency of converting gas to stars push galaxies at z~1.6 well above the star-forming main sequence2015
Author(s)
J. D. Silverman, E. Daddi, G. Rodighiero, W. Rujopakarn, M. Sargent, A. Renzini, D. Liu, C. Feruglio, D. Kashino, D. Sanders, J. Kartaltepe, T. Nagao, N. Arimoto, S. Berta, M. Bethermin, A. Koekemoer, D. Lutz, G. Magdis, C. Mancini, M. Onodera, and G. Zamorani
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Journal Title
The Astrophysical Journal Letters
Volume: Volume 812, Number 2
Issue: 2
Pages: 23-30
DOI
Related Report
Peer Reviewed / Open Access / Int'l Joint Research
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[Journal Article] SXDF-ALMA 1.5 arcmin2 Deep Survey: A Compact Dusty Star-forming Galaxy at z = 2.52015
Author(s)
Tadaki, Ken-ichi; Kohno, Kotaro; Kodama, Tadayuki; Ikarashi, Soh; Aretxaga, Itziar; Berta, Stefano; Caputi, Karina I.; Dunlop, James S.; Hatsukade, Bunyo; Hayashi, Masao; Hughes, David H.; Ivison, Rob; Izumi, Takuma; Koyama, Yusei; Lutz, Dieter; Makiya, Ryu; Matsuda, Yuichi; Nakanishi, Kouichiro; Rujopakarn, Wiphu, et
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Journal Title
The Astrophysical Journal Letters
Volume: Volume 811, Issue 1
Issue: 1
Pages: 3-8
DOI
Related Report
Peer Reviewed / Int'l Joint Research
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