Microlensing on different timescales in the lightcurves of QSO 0957+561 A,B

Details Microlensing on different timescales in the lightcurves of QSO 0957+561 A,B Microlensing on different timescales in the lightcurves of QSO 0957+561 A,B

Aug 1998

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998a%26a...336..829p&link_type=abstract

Astronomy and Astrophysics, v.336, p.829-839 (1998)

Astronomy and Astrophysics

Astrophysics

56

Methods: Statistical, Methods: Data Analysis, Quasars: Individual: 0957+561A, B, Gravitational Lensing

Scientific paper

A statistical analysis of an extended data set on a time basis of 17 years of optical observations of the gravitationally lensed quasar 0957+561 is presented. We use all available photometry to estimate the time delay between A and B images as 416.3+/- 1.7 days. Using this refined value we investigate basic statistical properties of the difference curve between the A and the time shifted B image. We find a significant variability of 0.25 mag on a time scale of 5 years, which we interpret as microlensing by compact objects in the lensing galaxy. We show that masses down to about 10(-5}M_{sun) may explain this microlensing event. Solar mass objects alone can more or less be excluded. However, a distribution of compact objects with a small fraction (

Affiliated with

Also associated with

No associations

Rating

Microlensing on different timescales in the lightcurves of QSO 0957+561 A,B 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 Microlensing on different timescales in the lightcurves of QSO 0957+561 A,B, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Microlensing on different timescales in the lightcurves of QSO 0957+561 A,B will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1574238