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  • Tokuoka, TsuyoshiWaseda Univ, Fac Sci & Engn, Grad Sch Adv Sci & Engn, Dept Pure & Appl Phys, 3-4-1 Okubo, Tokyo 1698555, Japan. (author)

Possible Systematic Rotation in the Mature Stellar Population of a z=9.1 Galaxy

  • Article/chapterEnglish2022

Publisher, publication year, extent ...

  • 2022-07-01
  • Institute of Physics Publishing (IOPP),2022
  • electronicrdacarrier

Numbers

  • LIBRIS-ID:oai:DiVA.org:uu-481193
  • https://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-481193URI
  • https://doi.org/10.3847/2041-8213/ac7447DOI

Supplementary language notes

  • Language:English
  • Summary in:English

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  • Subject category:ref swepub-contenttype
  • Subject category:art swepub-publicationtype

Notes

  • Correction in: The Astrophysical Journal Letters, vol. 944, no 2DOI 10.3847/2041-8213/acb935
  • We present new observations with the Atacama Large Millimeter/submillimeter Array for a gravitationally lensed galaxy at z = 9.1, MACS1149-JD1. [O III] 88 mu m emission is detected at 10 sigma with a spatial resolution of similar to 0.3 kpc in the source plane, enabling the most distant morphokinematic study of a galaxy. The [O iii] emission is distributed smoothly without any resolved clumps and shows a clear velocity gradient with Delta V-obs/2 sigma(tot) = 0.84 +/- 0.23, where Delta V-obs is the observed maximum velocity difference and sigma(tot) is the velocity dispersion measured in the spatially integrated line profile, suggesting a rotating system. Assuming a geometrically thin self-gravitating rotation disk model, we obtain V-rot/sigma(V)=0.67-0.26+0.73, where V-rot and sigma (V) are the rotation velocity and velocity dispersion, respectively, still consistent with rotation. The resulting disk mass of 0.65-0.40+1.37x10(9) M-circle dot is consistent with being associated with the stellar mass identified with a 300 Myr old stellar population independently indicated by a Balmer break in the spectral energy distribution. We conclude that the most of the dynamical mass is associated with the previously identified mature stellar population that formed at z similar to 15.

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Added entries (persons, corporate bodies, meetings, titles ...)

  • Inoue, Akio K.Waseda Univ, Fac Sci & Engn, Grad Sch Adv Sci & Engn, Dept Pure & Appl Phys, 3-4-1 Okubo, Tokyo 1698555, Japan.;Waseda Univ, Fac Sci & Engn, Waseda Res Inst Sci & Engn, 3-4-1 Okubo, Tokyo 1698555, Japan. (author)
  • Hashimoto, TakuyaUniv Tsukuba, Fac Pure & Appl Sci, Tomonaga Ctr Hist Universe TCHoU, Tsukuba, Ibaraki 3058571, Japan. (author)
  • Ellis, Richard S.UCL, Dept Phys & Astron, Gower St, London WC1E 6BT, England. (author)
  • Laporte, NicolasUniv Cambridge, Kavli Inst Cosmol, Madingley Rd, Cambridge CB3 0HA, England.;Univ Cambridge, Cavendish Lab, 19 JJ Thomson Ave, Cambridge CB3 0HE, England. (author)
  • Sugahara, YumaWaseda Univ, Fac Sci & Engn, Waseda Res Inst Sci & Engn, 3-4-1 Okubo, Tokyo 1698555, Japan.;Natl Astron Observ Japan, 2-21-1 Osawa, Mitaka, Tokyo 1818588, Japan. (author)
  • Matsuo, HiroshiNatl Astron Observ Japan, 2-21-1 Osawa, Mitaka, Tokyo 1818588, Japan. (author)
  • Tamura, YoichiNagoya Univ, Grad Sch Sci, Div Particle & Astrophys Sci, Nagoya, Aichi 4648602, Japan. (author)
  • Fudamoto, YoshinobuWaseda Univ, Fac Sci & Engn, Waseda Res Inst Sci & Engn, 3-4-1 Okubo, Tokyo 1698555, Japan.;Natl Astron Observ Japan, 2-21-1 Osawa, Mitaka, Tokyo 1818588, Japan. (author)
  • Moriwaki, KanaUniv Tokyo, Dept Phys, Bunkyo Ku, 7-3-1 Hongo, Tokyo 1130033, Japan. (author)
  • Roberts-Borsani, GuidoUniv Calif Los Angeles, Dept Phys & Astron, 430 Portola Plaza, Los Angeles, CA 90095 USA. (author)
  • Shimizu, IkkohShikoku Gakuin Univ, Dept Literature, 3-2-1 Bunkyocho, Zentsuji, Kagawa 7658505, Japan. (author)
  • Yamanaka, SatoshiToba Coll, Natl Inst Technol, Gen Educ Dept, 1-1 Ikegami Cho, Toba, Mie 5178501, Japan. (author)
  • Yoshida, NaokiUniv Tokyo, Dept Phys, Bunkyo Ku, 7-3-1 Hongo, Tokyo 1130033, Japan.;Univ Tokyo, UT Inst Adv Study, Kavli Inst Phys & Math Universe WPI, 5-1-5 Kashiwanoha, Kashiwa, Chiba 2778583, Japan.;Univ Tokyo, Sch Sci, Res Ctr Early Universe, Bunkyo Ku, 7-3-1 Hongo, Tokyo 1130033, Japan.;Univ Tokyo, Sch Sci, Inst Phys Intelligence, Bunkyo Ku, 7-3-1 Hongo, Tokyo 1130033, Japan. (author)
  • Zackrisson, ErikUppsala universitet,Observationell astrofysik(Swepub:uu)erzac792 (author)
  • Zheng, WeiJohns Hopkins Univ, Dept Phys & Astron, Baltimore, MD 21218 USA. (author)
  • Waseda Univ, Fac Sci & Engn, Grad Sch Adv Sci & Engn, Dept Pure & Appl Phys, 3-4-1 Okubo, Tokyo 1698555, Japan.Waseda Univ, Fac Sci & Engn, Grad Sch Adv Sci & Engn, Dept Pure & Appl Phys, 3-4-1 Okubo, Tokyo 1698555, Japan.;Waseda Univ, Fac Sci & Engn, Waseda Res Inst Sci & Engn, 3-4-1 Okubo, Tokyo 1698555, Japan. (creator_code:org_t)

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  • In:Astrophysical Journal Letters: Institute of Physics Publishing (IOPP)933:12041-82052041-8213

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