A Serendipitous Hard X-ray Detection of the Blazar LBQS 1319+0039

Abstract

We report a serendipitous hard X-ray (3-24 keV) detection of the blazar LBQS 1319+0039. The X-ray spectrum is consistent with powerlaw emission with a photon index of $\Gamma =1.78$. The observed emission and published redshift imply an observed 2-10 keV luminosity of $3.4\times 10^{45}$ erg s${}^{-1}$. This is consistent with extrapolations from a previous soft X-ray detection, thus there is no evidence for strong variability.

published in Research Notes of the American Astronomical Society

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• Roma-BZCAT: A multifrequency catalogue of Blazars
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• The NuSTAR Serendipitous Survey: The 40 month Catalog and the Properties of the Distant High Energy X-ray Source Population