A Large Brightness Enhancement of the QSO 0957+561 A Component

Details A Large Brightness Enhancement of the QSO 0957+561 A Component A Large Brightness Enhancement of the QSO 0957+561 A Component

2002-05-23

arxiv.org/abs/astro-ph/0205399v1

Astronomy and Astrophysics

Astrophysics

13 pages including 3 figures and 1 table. Accepted for publication in ApJ Lett

Scientific paper

10.1086/341968

We report an increase of more than 0.2 mag in the optical brightness of the leading image (A) of the gravitational lens Q0957+561, detected during the 09/2000 -- 06/2001 monitoring campaign (2001 observing season). The brightening is similar to or even greater than the largest change ever detected during the 20 years of monitoring of this system. We discuss two different provisional explanations to this event: intrinsic source variability or microlensing (either short timescale microlensing or cessation of the historical microlensing). An exhaustive photometric monitoring of Q0957+561 is needed until summer of 2002 and during 2003 to discriminate between these possibilities.

Affiliated with

Also associated with

No associations

Rating

A Large Brightness Enhancement of the QSO 0957+561 A Component 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 A Large Brightness Enhancement of the QSO 0957+561 A Component, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A Large Brightness Enhancement of the QSO 0957+561 A Component will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-454165