A New Method to Map Flares in Quasars

Details A New Method to Map Flares in Quasars A New Method to Map Flares in Quasars

2003-05-16

arxiv.org/abs/astro-ph/0305297v1

Astrophys.J. 594 (2003) 107-115

Astronomy and Astrophysics

Astrophysics

22 pages (including 3 tables and 7 figures) Accepted to ApJ

Scientific paper

10.1086/376936

Recently, Chartas et al. (2001) detected a rapid X-ray flare in the gravitationally lensed, multiple image quasar RX J0911.4+0551. Dramatic events, such as rapid X-ray flares, are useful in providing high precision measurements of the time delays between multiple images. In this paper, we argue that there is a new possibility in measurements of time delays between multiple images of gravitationally lensed quasars; constrain the locations of putative flares that give rise to the intrinsic rapid variabilities of quasars. The realization, however, of these goals cannot be presently achieved due to the limited accuracy of the current measurements. We predict that timing flares with accuracies of the order of a few seconds will be needed to probe the location of the flares. Our proposing method will work with better instruments in near future, such as XEUS.

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