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Date and Time of the Query: 2018-12-13 T09:37:09 PST
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For refcode 2005AJ....129..559S:
Retrieve 12 NED objects in this reference.
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Copyright by American Astronomical Society. Reproduced by permission
2005AJ....129..559S ESO Very Large Telescope Optical Spectroscopy of BL Lacertae Objects. I. New Redshifts B. Sbarufatti, A. Treves, R. Falomo, J. Heidt, J. Kotilainen, and R. Scarpa Abstract. We report redshift measurements for 12 BL Lacertae objects from a program aimed at obtaining high signal-to-noise ratio (up to ~500) optical spectroscopy of a mixed sample of objects. The new observations, gathered with the 8 m ESO Very Large Telescope, allowed us to detect weak spectral features down to a line equivalent width as small as ~1 {angstrom}. The new redshifts fall in the 0.2 - 1.3 interval. For nine objects we observe emission lines from the active nucleus. In the remaining three cases absorption lines from the host galaxy are found. For two objects we also detect absorption lines from intervening systems. Keywords: Galaxies: BL Lacertae Objects: General
Retrieve 12 NED objects in this reference.
Please click here for ADS abstract

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