Ultraviolet and X-ray observations of the BL Lac object PKS 05 8-322

Details Ultraviolet and X-ray observations of the BL Lac object PKS 05 8-322 Ultraviolet and X-ray observations of the BL Lac object PKS 05 8-322

May 1982

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982stin...8227198u&link_type=abstract

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Astronomy and Astrophysics

Astronomy

Astronomical Spectroscopy, Bl Lacertae Objects, Ultraviolet Spectra, X Ray Spectra, Heao 2, Infrared Spectra, Iue, Quasars, Relativistic Theory, Spectrum Analysis

Scientific paper

Spectrophotometric observations of the BL Lac object PKS 0548-322 were made with ultraviolet and X-ray instruments on the IUE and HEAO-2 satellites. Two observations in each spectral region, one set of which was obtained simultaneously are presented. A power law of energy index approximately 1.0 gives a good description of the data from ultraviolet through X-ray frequencies. This source is reported to be variable on short timescales (Gilmore 1980); the implications of the spectral properties and apparent variability are discussed in light of a relativistic jet model. Findings support the jet picture of BL Lac objects.

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