The X-ray spectra of blazars: Analysis of the complete EXOSAT archive

Details The X-ray spectra of blazars: Analysis of the complete EXOSAT archive The X-ray spectra of blazars: Analysis of the complete EXOSAT archive

Dec 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994apjs...95..371s&link_type=abstract

Astrophysical Journal Supplement Series (ISSN 0067-0049), vol. 95, no. 2, p. 371-385

Astronomy and Astrophysics

Astronomy

50

Astronomical Catalogs, Bl Lacertae Objects, Quasars, Stellar Models, X Ray Astronomy, X Ray Spectra, Astronomical Spectroscopy, Exosat Satellite, Mathematical Models, Oxygen, Spaceborne Astronomy

Scientific paper

We analyzed the 0.1-10 keV spectra of 26 blazars (21 BL Lac objects and 5 highly polarized quasars), on the basis of 93 exposures taken from the EXOSAT archives. Fits were performed first with a single power-law model. Indications are found that better fits can be obtained with models where the slope steepens at higher energies. We therefore considered a broken power law and found that in a large fraction of the spectra the fit is significantly improved. Fits with a power law + oxygen edge at 0.6 keV are also explored.

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