The Chandra High Resolution Spectra of Mkn 421
F. Nicastro, A. Fruscione, M. Elvis, A. Siemiginowska, F. Fiore, S. Bianchi
Abstract
Mkn 421 was observed by Chandra twice, on November 5, 1999 as part of the Chandra calibration program, with the ACIS-HETG configuration, and on May 29, 2000 following our Target Of Opportunity request aimed to catch the source in an ultra-high state, with both the ACIS-HETG and the HRC-LETG configurations. In this contribution we present and compare the two Chandra-MEG observations of Mkn 421, which lasted 26 and 19.6 ks respectively.
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