ar X iv : a st ro - p h / 04 08 44 4 v 1 2 4 A ug 2 00 4 1 THE BATSE 9 YEAR HISTORIES OF THE BRIGHTEST AGN
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چکیده
The Burst and Transient Source Experiment (BATSE) aboard CGRO monitored the whole sky through 8 NaI(Tl) crystal scintillators sensitive in the 20 keV-2 MeV energy band continuously from April 1991 until June 2000. Results are presented on the long term vari-abilty observed in the brightest Active Galactic Nuclei (AGN) present in the BATSE data archive. This was achieved through the application of the Earth Occulta-tion technique to data flat-fielded using the BATSE Mass Model. Removal of the temporal background variations from the data should allow a more sensitive extraction of source parameters. Analysis of the general trends of the 9-year light curves are also presented.
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