Fermi Gamma-ray Space Telescope

2HWC J2019+367: A Pulsar, but how?

Chad Brisbois
(Vikas Joshi)

Abstract:

In the TeV sky, the Cygnus region is one of the brightest areas outside of the inner galaxy. It has been heavily observed for decades, making it perfect target for multi-wavelength studies. Originally discovered in 2007 by the Milagro Observatory, and subsequently detected by VERITAS, it is seen by the High Altitude Water Cherenkov Observatory (HAWC) as 2HWC J2019+367. Most recently, HAWC has observed gamma-ray emission beyond 100 TeV from 2HWC J2019+367. The hard index and cutoff of the spectrum of the source points to leptonic models of emission. This source has long been thought to be associated with PSR J2021+3651 but previous studies have never been able to conclusively prove the association. In this poster, we present detailed spectral and morphological studies of 2HWC J2019+367 at the highest energies using the latest data from the HAWC Observatory.