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arXiv · 1908.06831

A survey of Active Galaxies with the HAWC Gamma-ray Observatory

Alberto Carramiñana·Daniel Rosa González·Sara Coutiño de León·Anna Lia Longinotti
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Abstract

The High Altitude Water Cherenkov Gamma-Ray Observatory has been accumulating a progressively deeper exposure of the TeV sky since its inauguration in March 2015. Located at geographical latitude $+19^\circ$N, HAWC has been able to perform a deep and unbiased survey of two thirds of the sky. We analyzed three years of HAWC data searching for long term persistent emission from a redshift limited ($z\leq 0.3$) sample of active galactic nuclei drawn from the {\it Fermi}-LAT 3FHL catalog. The HAWC dataset confirms the high significance detection of the two nearest BL Lac objects, \mbox{Mrk 421} and \mbox{Mrk 501}, and sets limits for the rest of the sample, down to integrated photon fluxes of order $N(>0.5~{\rm TeV})\lesssim 10^{-12}\,\rm cm^{-2}s^{-1}$. We present and discuss some of the results of this survey, focusing on individual objects of particular interest.

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Alberto Carramiñana, Daniel Rosa González, Sara Coutiño de León, Anna Lia Longinotti. 2019-08-19. A survey of Active Galaxies with the HAWC Gamma-ray Observatory. https://arxiv.org/abs/1908.06831

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