Richard Ellis
Spectroscopy of arcs in the rich cluster Abell 963
Ellis, Richard; Allington-Smith, Jeremy; Smail, Ian
Abstract
Spectra are presented for portions of the two arcs observed close to the dominant cD galaxy in the rich cluster Abell 963 (z = 0.206). The spectrum of the northern arc displays a strong emission line at 6600 Å which is seen along the entire arc. The feature cannot be understood unless the redshift is greater than that of the cluster, the most likely interpretation being [O II] 3727 Å at z = 0.771. The southern arc is considerably fainter and its spectrum shows no obvious features. However, new CCD photometry is consistent with a near-constant blue color ( B – R ~ 0.3) along both arcs, supporting the suggestion that they arise from the gravitationally lensed light of a background object. The optical and infrared color is consistent with a spiral galaxy undergoing strong star formation at this redshift. We discuss briefly the implication of this result, and the possible role lensing surveys may play in the study of high-redshift galaxies.
Citation
Ellis, R., Allington-Smith, J., & Smail, I. (1991). Spectroscopy of arcs in the rich cluster Abell 963. Monthly Notices of the Royal Astronomical Society, 249(1), 184-190. https://doi.org/10.1093/mnras/249.1.184
Journal Article Type | Article |
---|---|
Publication Date | Mar 1, 1991 |
Deposit Date | Nov 10, 2016 |
Publicly Available Date | Nov 10, 2016 |
Journal | Monthly Notices of the Royal Astronomical Society |
Print ISSN | 0035-8711 |
Electronic ISSN | 1365-2966 |
Publisher | Royal Astronomical Society |
Peer Reviewed | Peer Reviewed |
Volume | 249 |
Issue | 1 |
Pages | 184-190 |
DOI | https://doi.org/10.1093/mnras/249.1.184 |
Public URL | https://durham-repository.worktribe.com/output/1584317 |
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Copyright Statement
This article has been accepted for publication in Monthly Notices of the Royal Astronomical Society ©: 1991 Royal Astronomical Society. Provided by the NASA Astrophysics Data System. Published by Oxford University Press on behalf of the Royal Astronomical Society. All rights reserved.
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