THE GRAVITATIONAL LENS CFRS-14.1311=HST-14176+5226

Citation
D. Crampton et al., THE GRAVITATIONAL LENS CFRS-14.1311=HST-14176+5226, Astronomy and astrophysics, 307(3), 1996, pp. 53-56
Citations number
15
Categorie Soggetti
Astronomy & Astrophysics
Journal title
ISSN journal
00046361
Volume
307
Issue
3
Year of publication
1996
Pages
53 - 56
Database
ISI
SICI code
0004-6361(1996)307:3<53:TGLC>2.0.ZU;2-M
Abstract
Ratnatunga et al. (1995) have recently proposed that an object, HST 14 176+5226, in the ''Groth-Westphal'' HST survey strip is an ''Einstein cross'' gravitational lens. By chance, this object has been previously observed in the Canada-France Redshift Survey. The candidate lens, ca talogued as CFRS14.1311, is an elliptical galaxy at z = 0.81. In addit ion, the spectrum shows a strong, spatially-extended, emission feature at 5342 Angstrom that almost certainly originates from two of the fou r ''lensed'' images. We tentatively identify this emission line as Ly alpha at z = 3.4. A less prominent emission feature at 6822 Angstrom m ay be CIV 1549. Our data thus support the identification of this syste m as a new quadruple-image lens.