English

VERITAS Long-Term Observations of Hard Spectrum Blazars

High Energy Astrophysical Phenomena 2019-08-13 v1

Abstract

The VERITAS collaboration has approved long-term observations on several distant, hard-spectrum blazars. We present first results from VERITAS long-term observations of 1ES1218+304, 1ES0229+200, and 1ES0414+009. Gamma-ray observations of distant, hard-spectrum blazars has emerged as an effective, indirect probe of the universe's diffuse extragalactic background light (EBL), due to the extinction of gamma-rays via the pair production interaction γTeVγEBLe+e\gamma_{TeV}\gamma_{EBL}\rightarrow e^{+}e^{-}, which is expected to produce absorption features in distant gamma-ray sources. The sources presented here emit spectra that are well fit by power laws.

Keywords

Cite

@article{arxiv.1307.7051,
  title  = {VERITAS Long-Term Observations of Hard Spectrum Blazars},
  author = {Arun S. Madhavan},
  journal= {arXiv preprint arXiv:1307.7051},
  year   = {2019}
}

Comments

ICRC proceedings paper, 4 pages, 4 figures