Publications [#66642] of Jeffrey L. Krolik

Papers Published

1. Menou, K. and Vanden Berk, D.E. and Ivezic, Z. and Kim, R.S.J. and Knapp, G.R. and Richards, G.T. and Strateva, I. and Xiaohui Fan and Gunn, J.E. and Hall, P.B. and Heckman, T. and Krolik, J. and Lupton, R.H. and Schneider, D.P. and York, D.G. and Anderson, S.F. and Bahcall, N.A. and Brinkmann, J. and Brunner, R. and Csabai, I. and Fukugita, M. and Hennessy, G.S. and Kunszt, P.Z. and Lamb, D.Q. and Munn, J.A. and Nichol, R.C. and Szokoly, G.P., Broad absorption line quasars in the Sloan Digital Sky Survey with VLA FIRST radio detections, Astrophys. J. (USA), vol. 561 no. 2 (2001), pp. 645 - 52 [323218]
   (last updated on 2007/04/16)

   Abstract:
   We present 13 broad absorption line (BAL) quasars, including 12 new objects, identified in the Sloan Digital Sky Survey (SDSS) and matched within 2" to sources in the FIRST radio survey catalog. The surface density of this sample of radio-detected BAL quasars is 4.5±1.2 per 100 deg², i.e., approximately 4 times as high as previously found by the shallower FIRST Bright Quasar Survey (FBQS). A majority of these radio-detected BAL quasars are moderately radio-loud objects. The fraction of BAL quasars in the entire radio quasar sample, 4.8%±1.3%, is comparable to the fraction of BAL quasars among the SDSS optical quasar sample (ignoring selection effects). We estimate that the true fraction of BAL quasars (mostly "HiBALs") in the radio sample is 9.2%±2.6%, once selection effects are accounted for. We caution that the absorption troughs of four of the 13 radio-detected quasars considered do not strictly satisfy the standard BALnicity criteria. One or possibly two of the new radio-detected BAL quasars are of the rare "FeLoBAL" type. BAL quasars are generally redder than the median SDSS quasar at the same redshift

   Keywords:
   quasars;