The X-ray spectrum of the BL Lacertae object PKS 0548-322

Details The X-ray spectrum of the BL Lacertae object PKS 0548-322 The X-ray spectrum of the BL Lacertae object PKS 0548-322

Oct 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979apj...233l..47r&link_type=abstract

Astrophysical Journal, Part 2 - Letters to the Editor, vol. 233, Oct. 15, 1979, p. L47-L49.

Astronomy and Astrophysics

Astrophysics

30

Bl Lacertae Objects, Heao 1, X Ray Sources, X Ray Spectra, Energy Spectra

Scientific paper

X-ray observations of H0548-322 = PKS 0548-322 at energies from 0.15 keV to 24 keV with the HEAO A-2 experiment are reported. The spectrum shows a distinct break in slope near 2 keV, with the indices of power-law energy spectra of 2.2 below and 0.3 above this break. A synchrotron self-Compton model is consistent with radio, optical, and all X-ray data, although a modified synchrotron self-Compton model with added thermal origin for the low-energy X-ray spectrum is also plausible.

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