Keck Spectroscopy of the Einstein Cross HST 14176+5226

Details Keck Spectroscopy of the Einstein Cross HST 14176+5226 Keck Spectroscopy of the Einstein Cross HST 14176+5226

May 1998

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998aas...192.0702m&link_type=abstract

American Astronomical Society, 192nd AAS Meeting, #07.02; Bulletin of the American Astronomical Society, Vol. 30, p.825

Astronomy and Astrophysics

Astronomy

Scientific paper

We have used LRIS on Keck II to obtain high-quality spectroscopic data on the Einstein Cross lens HST 14176+5226. We confirm that the system consists of a foreground elliptical at z=0.811 and a lensed object at z=3.4. A mass estimate for the elliptical is made using absorption lines that are sampled at high signal-to-noise, and compared with the inferred mass based on a best-fit lensing model for the system. Based on the combined imaging & spectroscopic data and the gravitational-lens modeling, we explore the possibility that the lensed object is a starburst galaxy at z=3.4.

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