Speaker
Floriana Zefi
(LLR - Ecole Polytechnique)
Description
We report on evidence of correlated gamma-ray variability from the BL Lac source B2 1215+30, detected by VERITAS (E > 100 GeV) and the Fermi Large Area Telescope (100 MeV < E <100 GeV). The source was observed by VERITAS during an exceptional flaring state in February 2014. Further investigations of flux variability in the energy range covered by Fermi-LAT, quasi-simultaneous with VERITAS observations, showed evidence of correlated variability. Using these results we constrain the size of the emission region and derive a limit on the Doppler factor of the relativistic jet of B2 1215+30.
| Registration number following "ICRC2015-I/" | 517 |
|---|---|
| Collaboration | VERITAS |
Primary authors
Floriana Zefi
(LLR - Ecole Polytechnique)
Reshmi Mukherjee
(Barnard College/Columbia University)
