HESS J1852-000 near the supernova remnant Kes 78
February 2011
Multi-wavelength view of the region around Kes 78. The radio shell of the SNR is shown in the upper-left panel, and is overlaid on the CO image (upper right), as well as on the smoothed ROSAT X-ray count map (lower left)
and on the H.E.S.S. gamma ray significance map (lower right). The white circle illustrates the H.E.S.S. angular resolution.
Kes 78 - also known as G32.8−0.1 is an elongated shell-type supernova remnant (top image, and Fig. 1) at an estimated distance of about 9 kpc (Xu & Zhang 2009). Maser emission is detected on the rim of the remnant (Koralesky et al. 1998), indicating that the supernova shock runs into a cloud of molecular gas, as observed also for other remnants such as W28 or W51 (see 25th Texas Symposium on Relativistic Astrophysics, Heidelberg, 2010
