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Date and Time of the Query: 2018-12-15 T00:52:34 PST
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For refcode 2003A&A...412..651C:
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NED Abstract

Copyright by European Southern Observatory (ESO). Reproduced by permission
2003A&A...412..651C Optical spectroscopy of BL Lac objects: New redshifts and mis-identified sources N. Carangelo, R. Falomo, J. Kotilainen, A. Treves and M.-H. Ulrich We are carrying out a multi-purpose program of high signal to noise optical spectroscopy at medium resolution of 30 BL Lac objects. Here we report the detection of three new redshifts, and the discovery of three misclassified sources. The new redshifts refer to PKS 0754+100 (z=0.266), H-1914-194 (z=0.137) and 1ES0715-259, for which we derive a redshift of z=0.465 and also a "new" classification a Steep Spectrum Radio Quasar. In two cases (UM493 and 1620+103) stellar spectra indicate a wrong classification. The three sources with new redshift measurement show strong [OIII] emission in their spectra and their host galaxy properties are known. The central black hole masses derived using the M_BH_-_L_bulge_ and the M_BH_-{sigma}([OIII]) relations are compared. Keywords: galaxies: BL Lacertae objects: general, galaxies: active, galaxies: quasars: general
Retrieve 5 NED objects in this reference.
Please click here for ADS abstract

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