Extreme intranight variability in the BL Lacertae object AO 0235+164

Details Extreme intranight variability in the BL Lacertae object AO 0235+164 Extreme intranight variability in the BL Lacertae object AO 0235+164

2000-07-26

arxiv.org/abs/astro-ph/0007407v1

Astronomy and Astrophysics

Astrophysics

4 pages, 3 figures, to appear in Astronomy & Astrophysics (Letters)

Scientific paper

We present results of two-colour photometry with high time resolution of the violently variable BL Lac object AO 0235+164. We have found extreme intranight variability with amplitudes of ~ 100 % over time scales of 24 hours. Changes of 0.5 magnitudes in both R and V bands were measured within a single night, and variations up to 1.2 magnitudes occurred from night to night. A complete outburst with an amplitude ~ 30 % was observed during one of the nights, while the spectrum remained unchanged. This seems to support an origin based on a thin relativistic shock propagating in such a way that it changes the viewing angle, as recently suggested by Kraus et al. (1999) and Qian et al. (2000).

Affiliated with

Also associated with

No associations

Rating

Extreme intranight variability in the BL Lacertae object AO 0235+164 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 Extreme intranight variability in the BL Lacertae object AO 0235+164, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Extreme intranight variability in the BL Lacertae object AO 0235+164 will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-719538