'Round the Clock Observations of the Q0957+561 A,B Gravitationally Lensed Quasar

Details 'Round the Clock Observations of the Q0957+561 A,B Gravitationally Lensed Quasar 'Round the Clock Observations of the Q0957+561 A,B Gravitationally Lensed Quasar

2001-03-09

arxiv.org/abs/astro-ph/0103146v1

Astronomy and Astrophysics

Astrophysics

8 pages, AASTeX 4.0, accepted by the Astrophysical Journal

Scientific paper

10.1086/338135

An observing campaign with 10 participating observatories has undertaken to monitor the optical brightness of the Q0957 gravitationally lensed quasar for 10 consecutive nights in January 2000. The resulting A image brightness curve has significant brightness fluctuations and makes a photometric prediction for the B image light curve for a second campaign planned for 12-21 March 2001. The ultimate purpose is to determine the gravitational lens time delay to a fraction of an hour, and to seek evidence for rapid microlensing.

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