A Rapid Microlensing Event in the Q0957+561 A,B Gravitational Lens System

Details A Rapid Microlensing Event in the Q0957+561 A,B Gravitational Lens System A Rapid Microlensing Event in the Q0957+561 A,B Gravitational Lens System

2003-03-07

arxiv.org/abs/astro-ph/0303170v1

Astrophys.J. 594 (2003) 97-100

Astronomy and Astrophysics

Astrophysics

Scientific paper

10.1086/376832

We re-analyze brightness data sampled intensively over 5 nights at two epochs separated by the quasar lens time delay, to examine the nature of the observed microlensing. We find strong evidence for a microlensing event with an amplitude of 1% and a time scale of twelve hours. The existence of such rapid microlensing, albeit at low amplitude, imposes constraints on the nature of the quasar and of the baryonic dark matter.

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