Dust-free Insight into the Obscured Cosmic Accretion History and Modes of Galaxy Assembly

• Project/Area Number: 15K17604
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Astronomy
• 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
• Project Status: Completed (Fiscal Year 2017)
• Budget Amount: ¥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)
• 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.

Research Products

• [Int'l Joint Research] National Radio Astronomy Observatory/University of Arizona(米国)
• [Int'l Joint Research] European Southern Observatory(EU)
• [Int'l Joint Research] Royal Observatory(英国)
• [Int'l Joint Research] CEA Saclay (Dr. David Elbaz)(France)
• [Int'l Joint Research] National Radio Astronomy Observatory/University of Arizona(米国)
• [Int'l Joint Research] European Southern Observatory(Germany)
• [Int'l Joint Research] Royal Observatory/The University of Edinburgh(英国)
• [Int'l Joint Research] CEA Saclay(France)
• [Journal Article] Cospatial Star Formation and Supermassive Black Hole Growth in z - 3 Galaxies: Evidence for In Situ Co-evolution (2018)
  • Author(s): Rujopakarn W.、Nyland K.、Rieke G. H.、Barro G.、Elbaz D.、Ivison R. J.、Jagannathan P.、Silverman J. D.、Smolcic V.、Wang T.
  • Journal Title: The Astrophysical Journal Volume: 854, Issue 1, article id. L4 Issue: 1 Pages: 1-7
  • DOI: 10.3847/2041-8213/aaa9b3
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] ALMA 26 arcmin2 Survey of GOODS-S at One-millimeter (ASAGAO): X-Ray AGN Properties of Millimeter-selected Galaxies (2018)
  • Author(s): Ueda Y.、Hatsukade B.、Kohno K.、Yamaguchi Y.、Tamura Y.、Umehata H.、Akiyama M.、Ao Y.、Aretxaga I.、Caputi K.、Dunlop J. S.、Espada D.、Fujimoto S.、Hayatsu N. H.、Imanishi M.、Inoue A. K.、Ivison R. J.、Kodama T.、Lee M. M.、Matsuoka K.、et al.
  • Journal Title: The Astrophysical Journal Volume: 853 Issue: 1 Pages: 24-24
  • DOI: 10.3847/1538-4357/aa9f10
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Spatially Resolved Kinematics in the Central 1 kpc of a Compact Star-forming Galaxy at z - 2.3 from ALMA CO Observations (2017)
  • Author(s): Barro G.、Kriek M.、Perez-Gonzalez P. G.、Diaz-Santos T.、Price S. H.、Rujopakarn W.、Pandya V.、Koo D. C.、Faber S. M.、Dekel A.、Primack J. R.、Kocevski D. D.
  • Journal Title: The Astrophysical Journal Volume: 851,Issue 2, article id. L40 Issue: 2 Pages: 1-6
  • DOI: 10.3847/2041-8213/aa9f0d
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] SHARDS Frontier Fields: Physical Properties of a Low-mass Lyα Emitter at z = 5.75 (2017)
  • Author(s): Hernan-Caballero, Antonio; Perez-Gonzalez, Pablo G.; Diego, Jose M.;Rujopakarn, Wiphu. et.al
  • Journal Title: The Astrophysical Journal Volume: 849, Issue 2, article id. 82 Issue: 2 Pages: 1-13
  • DOI: 10.3847/1538-4357/aa917f
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Molecular gas properties of a lensed star-forming galaxy at z ~ 3.6: a case study (2017)
  • Author(s): Dessauges-Zavadsky, M.; Zamojski, M.; Rujopakarn, W. et.al
  • Journal Title: Astronomy & Astrophysics Volume: 605,id. A81 Pages: 1-18
  • DOI: 10.1051/0004-6361/201628513
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] ALMA constraints on star-forming gas in a prototypical z = 1.5 clumpy galaxy: the dearth of CO(5-4) emission from UV-bright clumps (2017)
  • Author(s): Cibinel A.、Daddi E.、Bournaud F.、Sargent M. T.、le Floc'h E.、Magdis G. E.、Pannella M.、Rujopakarn W.、Juneau S.、Zanella A.、Duc P.-A.、Oesch P. A.、Elbaz D.、Jagannathan P.、Nyland K.、Wang T.
  • Journal Title: Monthly Notices of the Royal Astronomical Society Volume: 469, Issue 4 Issue: 4 Pages: 4683-4704
  • DOI: 10.1093/mnras/stx1112
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] ALMA observations of cold molecular gas in AGN hosts at z - 1.5 - evidence of AGN feedback? (2017)
  • Author(s): Kakkad D.、Mainieri V.、Brusa M.、Padovani P.、Carniani S.、Feruglio C.、Sargent M.、Husemann B.、Bongiorno A.、Bonzini M.、Piconcelli E.、Silverman J. D.、Rujopakarn W.
  • Journal Title: Monthly Notices of the Royal Astronomical Society Volume: 468, Issue 4 Issue: 4 Pages: 4205-4215
  • DOI: 10.1093/mnras/stx726
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] A deep ALMA image of the Hubble Ultra Deep Field (2017)
  • Author(s): Dunlop, J. S., Rujopakarn, W. (7th author of 39 authors) et.al
  • Journal Title: Monthly Notices of the Royal Astronomical Society Volume: 466 Issue: 1 Pages: 861-883
  • DOI: 10.1093/mnras/stw3088
  • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] SDSS IV MaNGA: Discovery of an H-alpha Blob Associated with a Dry Galaxy Pair―Ejected Gas or a ``Dark’’ Galaxy Candidate? (2017)
  • Author(s): Lin, L., Rujopakarn, W. (12th author of 34 authors) et.al
  • Journal Title: The Astrophysical Journal Volume: 837 Issue: 1 Pages: 32-32
  • DOI: 10.3847/1538-4357/837/1/32
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Transit timing variation and transmission spectroscopy analyses of the hot Neptune GJ3470b (2016)
  • Author(s): Awiphan, S., Rujopakarn, W. (6th author of 11 authors) et.al
  • Journal Title: Monthly Notices of the Royal Astronomical Society Volume: 463 Issue: 3 Pages: 2574-2582
  • DOI: 10.1093/mnras/stw2148
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] The SXDF-ALMA 2-arcmin^2 Deep Survey: Stacking Rest-frame Near-infrared Selected Objects (2016)
  • 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.
  • Journal Title: The Astrophysical Journal Volume: 833 Issue: 2 Pages: 195-195
  • DOI: 10.3847/1538-4357/833/2/195
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] VLA and ALMA Imaging of Intense Galaxy-wide Star Formation in z ~ 2 Galaxies (2016)
  • Author(s): Rujopakarn, W., (1st author of 33 authors) et.al
  • Journal Title: The Astrophysical Journal Volume: 833 Issue: 1 Pages: 12-12
  • DOI: 10.3847/0004-637x/833/1/12
  • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] SDSS-IV MaNGA: A Serendipitous Observation of a Potential Gas Accretion Event (2016)
  • Author(s): Cheung, E., Rujopakarn, W. (23th author of 27 authors) et.al
  • Journal Title: The Astrophysical Journal Volume: 832 Issue: 2 Pages: 182-182
  • DOI: 10.3847/0004-637x/832/2/182
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] SXDF-ALMA 2 arcmin2 deep survey: Resolving and characterizing the infrared extragalactic background light down to 0.5 mJy (2016)
  • 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.
  • Journal Title: PASJ Volume: 68 Issue: 5 Pages: 82-96
  • DOI: 10.1093/pasj/psw073
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Sub-kiloparsec ALMA Imaging of Compact Star-forming Galaxies at z ~ 2.5: Revealing the Formation of Dense Galactic Cores in the Progenitors of Compact Quiescent Galaxies (2016)
  • Author(s): Barro, G., Rujopakarn, W. (12th author of 13 authors) et.al
  • Journal Title: The Astrophysical Journal Letters Volume: 827 Issue: 2 Pages: L32-L32
  • DOI: 10.3847/2041-8205/827/2/l32
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] A complete census of Herschel-detected infrared sources within the HST Frontier Fields (2016)
  • 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.
  • Journal Title: Monthly Notices of the Royal Astronomical Society Volume: - Issue: 2 Pages: 1626-1645
  • DOI: 10.1093/mnras/stw712
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Suppressing star formation in quiescent galaxies with supermassive black hole winds (2016)
  • 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.
  • Journal Title: Nature Volume: -
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] A higher efficiency of converting gas to stars push galaxies at z～1.6 well above the star-forming main sequence (2015)
  • 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
  • Journal Title: The Astrophysical Journal Letters Volume: Volume 812, Number 2 Issue: 2 Pages: 23-30
  • DOI: 10.1088/2041-8205/812/2/l23
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] SXDF-ALMA 1.5 arcmin2 Deep Survey: A Compact Dusty Star-forming Galaxy at z = 2.5 (2015)
  • 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
  • Journal Title: The Astrophysical Journal Letters Volume: Volume 811, Issue 1 Issue: 1 Pages: 3-8
  • DOI: 10.1088/2041-8205/811/1/l3
  • Peer Reviewed / Int'l Joint Research
• [Presentation] ALMA and JVLA imaging of intense galaxy-wide star formation in z ~ 2 galaxies in the HUDF: bridging SMGs to the Main Sequence (2017)
  • Author(s): Wiphu Rujopakarn
  • Organizer: Galaxy Evolution Across Time
  • Int'l Joint Research
• [Presentation] ALMA and JVLA imaging of intense galaxy-wide star formation in z~2 galaxies in the HUDF: bridging SMGs to the main sequence (2017)
  • Author(s): Wiphu Rujopakarn
  • Organizer: SMG20 - Twenty years of Submillimetre Galaxies: STAR-FORMING GALAXIES AT HIGH REDSHIFTS
  • Int'l Joint Research / Invited
• [Presentation] Resolving the Obscured Cosmic Accretion History and Modes of Galaxy Assembly (2015)
  • Author(s): Wiphu Rujopakarn
  • Organizer: SKA Pathfinders Radio Continuum Surveys 2015
  • Place of Presentation: Protea Hotel Kruger Gate, Nelspruit, South Africa
  • Year and Date: 2015-07-02
  • Int'l Joint Research