Journal article
An FeLoBAL Binary Quasar
The Astrophysical journal, v 573(2), pp L85-L89
11 Jun 2002
Abstract
In an ongoing infrared imaging survey of quasars at Keck Observatory, we have
discovered that the z=1.285 quasar SDSS J233646.2-010732.6 comprises two point
sources with a separation of 1.67". Resolved spectra show that one component is
a standard quasar with a blue continuum and broad emission lines; the other is
a broad absorption line (BAL) quasar, specifically, a BAL QSO with prominent
absorption from MgII and metastable FeII, making it a member of the ``FeLoBAL''
class. The number of known FeLoBALs has recently grown dramatically from a
single example to more than a dozen, including a gravitationally lensed example
and the binary member presented here, suggesting that this formerly rare object
may be fairly common. Additionally, the presence of this BAL quasar in a
relatively small separation binary adds to the growing evidence that the BAL
phenomenon is not due to viewing a normal quasar at a specific orientation, but
rather that it is an evolutionary phase in the life of many, if not all,
quasars, and is particularly associated with conditions found in interacting
systems.
Metrics
Details
- Title
- An FeLoBAL Binary Quasar
- Creators
- Michael D Gregg - University of California, DavisRobert H Becker - University of California, DavisRichard L White - Space Telescope Science InstituteGordon T Richards - Pennsylvania State UniversityFred H Chaffee - W.M. Keck ObservatoryXiaohui Fan - Institute for Advanced Study
- Publication Details
- The Astrophysical journal, v 573(2), pp L85-L89
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Physics
- Web of Science ID
- WOS:000176663100005
- Scopus ID
- 2-s2.0-0041526293
- Other Identifier
- 991019201515404721
InCites Highlights
Data related to this publication, from InCites Benchmarking & Analytics tool:
- Collaboration types
- Domestic collaboration
- Web of Science research areas
- Astronomy & Astrophysics