Optical multiband observations of BL Lacertae during the outburst of 2005

Details Optical multiband observations of BL Lacertae during the outburst of 2005 Optical multiband observations of BL Lacertae during the outburst of 2005

Nov 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006mnras.373..209h&link_type=abstract

Monthly Notices of the Royal Astronomical Society, Volume 373, Issue 1, pp. 209-216.

Astronomy and Astrophysics

Astronomy

10

Bl Lacertae Objects: General, Bl Lacertae Objects: Individual: Bl Lacertae, Galaxies: Photometry

Scientific paper

The aim of our observations is to investigate the intranight variability properties and the spectral variability of BL Lacertae. 799 optical multiband observations were intensively made with the Beijing-Arizona-Taiwan-Connecticut (BATC) 60/90 cm Schmidt telescope during the outburst composed of two subsequent flares in 2005. The second flare, whose rising phase lasted at least 44 d, was observed with amplitudes of more than 1.1 mag in three BATC optical bands. In general, on intranight time-scale the amplitude of variability and the variation rate are larger at the shorter wavelength, and the variation rate is comparable in the rising and decaying phases within each band. A possible time-lag between the light curves in bands e and m, around 11.6 min, was obtained. Based on the analysis of the colour index variation with the source brightness, the variability of BL Lacertae can be interpreted as having two components: a `strongly chromatic' intranight component and a `mildly chromatic' internight component, which may be the results of both intrinsic physical mechanism and geometric effects.

Affiliated with

Also associated with

No associations

Rating

Optical multiband observations of BL Lacertae during the outburst of 2005 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 multiband observations of BL Lacertae during the outburst of 2005, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optical multiband observations of BL Lacertae during the outburst of 2005 will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1536585