English

Target of Opportunity Observations of Blazars with H.E.S.S

High Energy Astrophysical Phenomena 2017-10-24 v2

Abstract

The very-high-energy (VHE, E>100 GeV) extragalactic sky is dominated by blazars, a class of active galactic nuclei which show rapid variability at all wavelengths. Target of Opportunity (ToO) observations triggered by flaring activity detected at longer wavelengths are, thus, an important part of the blazar observing strategy of H.E.S.S., an array of five imaging atmospheric Cherenkov telescopes sensitive to VHE photons. In this contribution we detail the H.E.S.S. extragalactic ToO program, describing the specific procedures currently in place to follow up on multi-wavelength alerts. The program is illustrated by discussing a few recent noteworthy targets observed with the H.E.S.S. phase II array over the last two years of blazar ToO observations.

Keywords

Cite

@article{arxiv.1708.01083,
  title  = {Target of Opportunity Observations of Blazars with H.E.S.S},
  author = {F. Schüssler and M. Seglar-Arroyo and M. Arrieta and M. Böttcher and C. Boisson and M. Cerruti and N. Chakraborty and I. D. Davids and F. Jankowsky and J. P. Lenain and H. Prokoph and D. Sanchez and S. Wagner and M. Zacharias and A. Zech and the H. E. S. S. Collaboration},
  journal= {arXiv preprint arXiv:1708.01083},
  year   = {2017}
}

Comments

35th International Cosmic Ray Conference -ICRC2017, 10-20 July, 2017, Bexco, Busan, Korea