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ALMA [C II] 158 μm ...
ALMA [C II] 158 μm Detection of a Redshift 7 Lensed Galaxy behind RX J1347.1-1145
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Bradač, M. (author)
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Garcia-Appadoo, D. (author)
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Huang, K. -H (author)
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- Vallini, Livia (author)
- Stockholms universitet,Nordiska institutet för teoretisk fysik (Nordita),Dipartimento di Fisica e Astronomia, Bologna, Italy; INAF, Osservatorio Astronomico di Bologna, Italy,Dipartimento di Fisica e Astronomia, Italy; Nordita SU
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Finney, E. Q. (author)
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Hoag, A. (author)
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Lemaux, B. C. (author)
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Schmidt, K. B. (author)
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Treu, T. (author)
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Carilli, C. (author)
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Dijkstra, M. (author)
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Ferrara, A. (author)
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Fontana, A. (author)
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Jones, T. (author)
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Ryan, R. (author)
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Wagg, J. (author)
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Gonzalez, A. H. (author)
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(creator_code:org_t)
- Institute of Physics Publishing (IOPP), 2017
- 2017
- English.
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In: Astrophysical Journal Letters. - : Institute of Physics Publishing (IOPP). - 2041-8205 .- 2041-8213. ; 836:1
- Related links:
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https://urn.kb.se/re...
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https://doi.org/10.3...
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https://urn.kb.se/re...
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Abstract
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- We present the results of ALMA spectroscopic follow-up of a z =6.766 Lyα emitting galaxy behind the cluster RX J1347.1-1145. We report the detection of [C ii] 158 μm line fully consistent with the Lyα redshift and with the peak of the optical emission. Given the magnification of μ =5.0 ±0.3, the intrinsic (corrected for lensing) luminosity of the [C ii] line is L [C ii] = 1.4+0.2-0.3 × 107 L⊙, roughly ∼5 times fainter than other detections of z ∼ 7 galaxies. The result indicates that low L [C ii] in z ∼ 7 galaxies compared to the local counterparts might be caused by their low metallicities and/or feedback. The small velocity offset (δv = 20+140-40 Km s-1) between the Lyα and [C ii] line is unusual, and may be indicative of ionizing photons escaping.
Subject headings
- NATURVETENSKAP -- Fysik -- Astronomi, astrofysik och kosmologi (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Astronomy, Astrophysics and Cosmology (hsv//eng)
Keyword
- dark ages
- reionization
- first stars
- galaxies: clusters: individual (RX J1347.1-1145)
- galaxies: high-redshift
- gravitational lensing: strong
Publication and Content Type
- ref (subject category)
- art (subject category)
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- By the author/editor
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Bradač, M.
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Garcia-Appadoo, ...
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Huang, K. -H
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Vallini, Livia
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Finney, E. Q.
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Hoag, A.
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show more...
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Lemaux, B. C.
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Schmidt, K. B.
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Treu, T.
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Carilli, C.
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Dijkstra, M.
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Ferrara, A.
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Fontana, A.
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Jones, T.
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Ryan, R.
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Wagg, J.
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Gonzalez, A. H.
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show less...
- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
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and Astronomy Astrop ...
- Articles in the publication
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Astrophysical Jo ...
- By the university
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Royal Institute of Technology
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Stockholm University