ASCA IAU Circulars

Circ. #: 5993

Source: Markarian 421

Comments: Energy flux from the GIS showed Mkn 421 about 2 times brighter than when observed with EXOSAT in 1984. Photon index of 2.5.

Authors: T. Takahashi, M Tashiro, T. Kamae, K. Makishima, T. Kii, F. Makino, T. Ohashi, F. Takahara, N. Y. Yamasaki, R. Hartman, G. Madejski, R. C. Lamb, and T. C. Weekes

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