Reference : VLT Observations of two Unusual BAL Quasars
Scientific congresses and symposiums : Paper published in a book
Physical, chemical, mathematical & earth Sciences : Space science, astronomy & astrophysics
VLT Observations of two Unusual BAL Quasars
Hall, Patrick [ > > ]
Hutsemekers, Damien mailto [Université de Liège - ULg > Département d'astrophys., géophysique et océanographie (AGO) > Astroph. extragalactique et observations spatiales (AEOS) >]
Active Galactic Nuclei: From Central Engine to Host Galaxy. ASPC 290
[en] The SDSS has confirmed the existence of populations of broad absorption line quasars with extreme properties. I will discuss the discovery of redshifted absorption troughs (confirmation of a rotating disk wind?), absorption from FeIII but not FeII (a very large column density of moderately ionized gas?), extremely reddened objects (extinction curves even steeper than that of the SMC), objects with overlapping troughs that remove 90% of the flux below MgII, and two mysterious objects which may or may not be unusual BALs. Implications of these objects for quasar and BAL outflow models will be discussed, along with preliminary results of various followup observations.
ISBN: <ISBN>1-58381-135-4</ISBN>

File(s) associated to this reference

Fulltext file(s):

Restricted access
2003ASPC..290..209H.pdfPublisher postprint393.5 kBRequest copy

Bookmark and Share SFX Query

All documents in ORBi are protected by a user license.