Observations of very high energy emission from B2 1215+30 with VERITAS

TL;DR

This paper reports the detection of very high energy gamma-ray emission from the blazar B2 1215+30 using VERITAS, including spectral analysis and multi-wavelength modeling of its emission.

Contribution

First detection of VHE gamma-ray emission from B2 1215+30 with detailed spectral and multi-wavelength analysis.

Findings

Detected VHE gamma-ray flux of (8.0 ± 0.9) × 10^{-12} cm^{-2} s^{-1}

Energy spectrum fitted with a power-law index of -3.6 ± 0.5

Multi-wavelength data used to model the spectral energy distribution

Abstract

We present results of 45 hours of data taken from January to June 2011 with VERITAS above 200 GeV in the direction of B2 1215+30. The blazar was clearly detected with a constant flux of F(E>200 GeV) = (8.0 +- 0.9) \times 10^{-12} cm^{-2} s^{-1}. The energy spectrum can be fitted using a power-law with index -3.6 +- 0.5. Simultaneous multi-wavelength data are also presented, and are used to model the spectral energy distribution with a one-zone leptonic model.