Optical Variability of BL Lacertae during the Major Outburst of 1997

Details Optical Variability of BL Lacertae during the Major Outburst of 1997 Optical Variability of BL Lacertae during the Major Outburst of 1997

Jul 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000apj...537..638g&link_type=abstract

The Astrophysical Journal, Volume 537, Issue 2, pp. 638-643.

Astronomy and Astrophysics

Astronomy

7

Galaxies: Bl Lacertae Objects: Individual: Name: Bl Lacertae, Galaxies: Active, Galaxies: Nuclei

Scientific paper

We have undertaken an investigation of recent flux variability in BL Lac. We present optical observations taken over 22 nights documenting major as well as minor outbursts. This has been combined, for purposes of multifrequency analysis, with published X-ray and γ-ray data taken for an additional single night. On two nights in particular, including the night of the X-ray observations, a major outburst of about a full magnitude of variation was recorded. All the data have been analyzed with theoretical models. Attempts were made to use synchrotron self-Compton and external Comptonization models to explain the data; however, both classes of models were found lacking. More satisfactory results were obtained using an analytical model proposed by Wang et al. that involves the evolution of synchrotron spectra in a homogeneous jet due to the injection of relativistic electrons, taking into account radiation losses during the outbursts. It is hoped that the results of this study of BL Lac, an archetype for the class of blazars in general, represent a more generic phenomenon applicable to the entire class.

Affiliated with

Also associated with

No associations

Rating

Optical Variability of BL Lacertae during the Major Outburst of 1997 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 Optical Variability of BL Lacertae during the Major Outburst of 1997, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optical Variability of BL Lacertae during the Major Outburst of 1997 will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1717708