Keck Spectroscopy of Giant Arcs in Abell 2390

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dc.creatorFrye, B. L.
dc.creatorBroadhurst, T. J.
dc.creatorSpinrad, H.
dc.creatorBunker, A.
dc.date1998-03-06
dc.date.accessioned2026-07-07T02:26:17Z
dc.date.available2026-07-07T02:26:17Z
dc.descriptionWe present new Keck observations of giant arcs in the cluster Abell 2390. High resolution two-dimensional spectra of two arcs show metal lines at z=4.040 +/- 0.005 with Lyman-alpha emission spatially separated from the stellar continuum. In addition, spectroscopy along the notorious `straight' arc reveals two unrelated galaxies, at z=0.913 and z=1.033, with absorption lines of MgII and FeII at z=0.913 seen against the more distant object, indicating the presence of a large gaseous halo.
dc.description3 pages, 3 figures. To appear in "The Young Universe", (Rome Observatory, Oct. 1997), eds. S. D'Ordorico, A. Fontana, and E. Giallongo
dc.identifierhttps://arxiv.org/abs/astro-ph/9803066
dc.identifierhttp://arxiv.org/abs/astro-ph/9803066
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/12215
dc.subjectAstrophysics
dc.titleKeck Spectroscopy of Giant Arcs in Abell 2390
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