Fermi Gamma-ray Space Telescope

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

Chad Brisbois
(Vikas Joshi)


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.