Astronomy and Astrophysics – Astronomy
Scientific paper
Aug 1983
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983icrc....1....3a&link_type=abstract
IN: International Cosmic Ray Conference, 18th, Bangalore, India, August 22-September 3, 1983, Conference Papers. Volume 1 (A85-2
Astronomy and Astrophysics
Astronomy
Bl Lacertae Objects, Light Curve, Spaceborne Astronomy, X Ray Sources, Heao 2, Image Resolution, Proportional Counters, Variability, X Ray Spectra
Scientific paper
X-ray emission from two BL Lacertae objects (H2155-304 and PKS 0548-322) has been studied with the High-Resolution Imager and Monitor Proportional Counter (MPC) on the Einstein Observatory. The high-spatial-resolution observations confirm the identification of these X-ray sources with the BL Lac objects and give a source size less than about 2 arcsec. Variations in the X-ray intensity and spectrum of these sources were detected over time scales of a few hours from analysis of the MPC observations.
Agrawal Prahlad C.
Riegler Guenter R.
Singh Kamal P.
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