Hubble Space Telescope Images and Spectra of Objects Around an Optically Violent Variable QSO

Details Hubble Space Telescope Images and Spectra of Objects Around an Optically Violent Variable QSO Hubble Space Telescope Images and Spectra of Objects Around an Optically Violent Variable QSO

Dec 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995aas...187.8701b&link_type=abstract

American Astronomical Society, 187th AAS Meeting, #87.01; Bulletin of the American Astronomical Society, Vol. 27, p.1414

Astronomy and Astrophysics

Astronomy

1

Scientific paper

The Arecibo Occultation radio source AO 0235+164 is a rapidly and violently variable QSO with ze = 0.94. It was originally designated as a BL Lac object since no emission lines were detected in its spectrum; two absorption redshifts at 0.524 and 0.851 were measured some years before weak emission lines at z = 0.94 were detected by Cohen et al. (ApJ,318,577,1987). A point-like companion (Smith et al., ApJ,218,611,1977) was found 2 arc sec south with an emission line redshift at 0.524. It was designated object A by Yanny et al. (ApJ,338,735,1989). This object has sometimes been called a ``normal'' galaxy, presumably giving rise to the absorption at 0.524 in the QSO. Recent observations of the surrounding field, using the post-repair WFPC 2 on the Hubble Space Telescope, have been analyzed and the nature of the companion object 2 arc sec south, and of a second companion 1.3 arc sec east of AO, have been studied. Spectra of companion object A have been obtained with the Faint Object Spectrograph with gratings G160L and G270H, and 1.0 arc sec aperture, and these show that it is an AGN or QSO with BAL-type broad absorption lines shortward of CIVlambda 1549, SiIVlambda 1397, and NVlambda 1240, also broad CIII]lambda 1909 emission. The second object, A1, 1.3 arc sec east of the QSO, originally identified by Yanny et al. (1989) and shown to have [0II]lambda 3727 at z=0.524, is slightly extended. The physical properties and nature of this remarkable configuration will be discussed. This research has been supported in part by NASA NAS5-29293 and NAG5-1630.

Affiliated with

Also associated with

No associations

Rating

Hubble Space Telescope Images and Spectra of Objects Around an Optically Violent Variable QSO does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Hubble Space Telescope Images and Spectra of Objects Around an Optically Violent Variable QSO, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hubble Space Telescope Images and Spectra of Objects Around an Optically Violent Variable QSO will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1256257