SIMBAD references

2005A&A...440...53G - Astronomy and Astrophysics, volume 440, 53-58 (2005/9-2)

Microlensing in the double quasar SBS1520+530.

GAYNULLINA E.R., SCHMIDT R.W., AKHUNOV T., BURKHONOV O., GOTTLOEBER S., MIRTADJIEVA K., NURITDINOV S.N., TADJIBAEV I., WAMBSGANSS J. and WISOTZKI L.

Abstract (from CDS):

We present the results of a monitoring campaign of the double quasar SBS1520+530 at Maidanak observatory from April 2003 to August 2004. We obtained light curves in V and R filters that show small-amplitude Δm≃0.1 mag intrinsic variations of the quasar on time scales of about 100 days. The data set is consistent with the previously determined time delay of Δt=(130±3) days by Burud et al. (2002A&A...391..481B). We find that the time delay corrected magnitude difference between the quasar images is now larger by (0.14±0.03) mag than during the observations by Burud et al. (2002A&A...391..481B). This confirms the presence of gravitational microlensing variations in this system.

Abstract Copyright: ∼

Journal keyword(s): gravitational lensing - dark matter - quasars: individual: SBS 1520+530 - cosmology: observations

VizieR on-line data: <Available at CDS (J/A+A/440/53): table1.dat table2.dat>

Simbad objects: 8

goto Full paper

goto View the references in ADS

To bookmark this query, right click on this link: simbad:2005A&A...440...53G and select 'bookmark this link' or equivalent in the popup menu