NASA NTRS · 19890029313
Upper limits from hard X-ray observations of five BL Lacertae objects
Abstract
Results are presented from hard X-ray observations of the five brightest X-ray BL Lacertae objects: PKS 0548-322, Mrk 421 (=1101+384), 2A 1219+305, Mrk 501 (=1652+398), and PKS 2155-304. The observations covered the energy range 15-165 keV from August 1977 to December 1978. The results are compared with previous studies.
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Bezler, M., Gruber, D. E., Rothschild, R. E.. 1988-11-15. Upper limits from hard X-ray observations of five BL Lacertae objects. https://ntrs.nasa.gov/citations/19890029313
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