Monitoring the X-Ray Transient AGN RX J2217.9-5941

Details Monitoring the X-Ray Transient AGN RX J2217.9-5941 Monitoring the X-Ray Transient AGN RX J2217.9-5941

Sep 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002cxo..prop.1091p&link_type=abstract

Chandra Proposal ID #04700037

Physics

Chandra Proposal Id #04700037

Scientific paper

When observed in X-rays AGN show a wide range of variabilities. While variabilities by factors of 2-3 are quite common, the most extreme form of variability is X-ray transience. In this case the source is bright only at one time and becomes fainter by factors of several 100s of even vanishes from the X-ray sky. X-ray transience can be explained by either a dramatic chance of the accretion disk properties or by a rapid chance of then accretion rate, either by disk instabilities of by tidal disruption of a star by the central black hole. I propose to monitor the X-ray transient candidate, RX J2217.9--5941 for short two Chandra observations. The sources was bright in the ROSAT All-Sky Survey but appeared to be very faint when observed years later.

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