Discovery of a classic FR II broad absorption line quasar from the FIRST survey

被引:52
作者
Gregg, MD
Becker, RH
Brotherton, MS
Laurent-Muehleisen, SA
Lacy, M
White, RL
机构
[1] Univ Calif Davis, Dept Phys, Davis, CA 95616 USA
[2] Univ Calif Lawrence Livermore Natl Lab, Inst Geophys & Planetary Phys, Livermore, CA 94550 USA
[3] Natl Opt Astron Observ, Tucson, AZ 85726 USA
[4] Space Telescope Sci Inst, Baltimore, MD 21218 USA
关键词
quasars : absorption lines; quasars : general; quasars : individual (FIRST J101614.3+520916);
D O I
10.1086/317194
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
We have discovered a remarkable quasar, FIRST J101614.3+520916, whose optical spectrum shows unambiguous broad absorption features, while its double-lobed radio morphology and luminosity clearly indicate a classic Fanaroff-Riley type II radio source. Its radio luminosity places it at the extreme of the recently established class of radio-loud broad absorption line quasars. Because of its hybrid nature we speculate that FIRST J101614.3+520916 is a typical FR II quasar that has been rejuvenated as a broad absorption line (BAL) quasar with a compact steep spectrum core. The direction of the jet axis of FIRST J101614.3+520916 can be estimated from its radio structure and optical brightness, indicating that we are viewing the system at a viewing angle of greater than or similar to 40 degrees. The position angles of the radio jet and optical polarization are not well aligned, differing by similar to 20 degrees -30 degrees. When combined with the evidence presented by Becker and coworkers for a sample of 29 BAL quasars showing that at least some BAL quasars are viewed along the jet axis, the implication is that no preferred viewing orientation is necessary to observe BAL systems in a quasar's spectrum. This, and the probable young nature of compact steep spectrum sources, leads naturally to the alternate hypothesis that BALs are an early stage in the lives of quasars.
引用
收藏
页码:142 / 149
页数:8
相关论文
共 43 条
[1]  
Aldcroft T, 1997, ASTR SOC P, V128, P25
[2]   An asymmetric relativistic model for classical double radio sources [J].
Arshakian, TG ;
Longair, MS .
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2000, 311 (04) :846-860
[3]   Radio spectra of radio quiet quasars .2. Broad absorption line quasars [J].
Barvainis, R ;
Lonsdale, C .
ASTRONOMICAL JOURNAL, 1997, 113 (01) :144-147
[4]   Properties of radio-selected broad absorption line quasars from the first Bright Quasar Survey [J].
Becker, RH ;
White, RL ;
Gregg, MD ;
Brotherton, MS ;
Laurent-Muehleisen, SA ;
Arav, N .
ASTROPHYSICAL JOURNAL, 2000, 538 (01) :72-82
[5]   THE FIRST SURVEY - FAINT IMAGES OF THE RADIO SKY AT 20 CENTIMETERS [J].
BECKER, RH ;
WHITE, RL ;
HELFAND, DJ .
ASTROPHYSICAL JOURNAL, 1995, 450 (02) :559-577
[6]   The first radio-loud broad absorption line QSO and evidence for a hidden population of quasars [J].
Becker, RH ;
Gregg, MD ;
Hook, IM ;
McMahon, RG ;
White, RL ;
Helfand, DJ .
ASTROPHYSICAL JOURNAL, 1997, 479 (02) :L93-L96
[7]   A NEW CATALOG OF 53,522 4.85 GHZ SOURCES [J].
BECKER, RH ;
WHITE, RL ;
EDWARDS, AL .
ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES, 1991, 75 (01) :1-229
[8]   OUTFLOWS DRIVEN BY COSMIC-RAY PRESSURE IN BROAD ABSORPTION-LINE QSOS [J].
BEGELMAN, MC ;
DEKOOL, M ;
SIKORA, M .
ASTROPHYSICAL JOURNAL, 1991, 382 (02) :416-432
[9]   MORE SPECTROSCOPY OF THE FUZZ AROUND QSOS - ADDITIONAL EVIDENCE FOR 2-TYPES OF QSO [J].
BOROSON, TA ;
PERSSON, SE ;
OKE, JB .
ASTROPHYSICAL JOURNAL, 1985, 293 (01) :120-131
[10]   THE BROAD ABSORPTION-LINES IN THE SPECTRUM OF THE QSO PKS 1157+014 - A POSSIBLE LINK BETWEEN BROAD ABSORPTION-LINE QSOS, METAL ENRICHMENT, AND THE FORMATION OF GALAXIES [J].
BRIGGS, FH ;
TURNSHEK, DA ;
WOLFE, AM .
ASTROPHYSICAL JOURNAL, 1984, 287 (02) :549-554