ESO VLT Optical spectroscopy of BL Lac objects: 5 new redshifts

Details ESO VLT Optical spectroscopy of BL Lac objects: 5 new redshifts ESO VLT Optical spectroscopy of BL Lac objects: 5 new redshifts

Jul 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009atel.2123....1b&link_type=abstract

The Astronomer's Telegram, #2123

Astronomy and Astrophysics

Astronomy

1

Optical, Agn

Scientific paper

We presents results for Optical spectroscopy of BL Lac candidates performed with the ESO VLT equipped with FORS2. Observations were performed between April and June 2008. We were able to determine new redshift from emission/absorption lines for 5 objects: OJ -131: z=0.138, BL Lac, from the detection of MgII, [OII], Hbeta and [OIII] in emission; 1ES 1106+244: z=0.482, BL Lac, from the detection of CaII H&K and G band in absorption.

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