Discovery of gamma-ray emission from the blazar 1ES 0414+009
July 2011 Star chart from the 1983 discovery paper (Ulmer et. al) where the X-ray source detected by HEAO 1 in the region defined by the parallel lines was identified as the blazar 1ES…
HESS J1831-098, a new gamma-ray discovered pulsar wind nebula?
June 2011 The source HESS J1831-098 and its location in the H.E.S.S. Galactic Plane Survey. HESS J1831-098 (top image and Fig. 1) is a new very high energy gamma-ray source at longitude 21.8 degr.…
Gamma-ray emission from the direction of the globular cluster Terzan 5
May 2011 Near infra-red image of the globular cluster Terzan 5. The field of view is 40 arcseconds across. (Source: ESO) Globular clusters (GCs) are very old stellar systems with exceptionally high densities of…
VHE gamma rays from the vicinity of the supernova remnant G318.2+0.1
April 2011 Radio image at 843 MHz of the supernova remnant G318.2+0.1 (Whiteoak & Green 1996). The on-going H.E.S.S. Galactic Plane Survey continues to reveal new sources of very high energy (VHE) gamma rays.…
Very high energy gamma rays from the blazar PKS 0447-439
March 2011 Energy output of PKS 0447-439 across the electromagnetic spectrum, based on archival radio data (magenta), optical data from the ATOM telescope (black circles), Swift UVOT data (green), X-ray data from Swift (red)…
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…
The incredible shrinking source HESS J1303-631
January 2011 Energy mosaic of HESS J1303-631. Red: gamma rays below 2 TeV, green: 2 TeV to 10 TeV, blue: above 10 TeV. The highest energy photons originate nearest the pulsar, PSR J1301−6305 (marked…
Very high energy gamma rays from the W49 region
December 2010 A composite Chandra X-ray (blue) and Palomar infrared (red and green) image of the supernova remnant W49B reveals a barrel-shaped nebula (Source: X-ray: NASA/CXC/SSC/J. Keohane et al.; Infrared: Caltech/SSC/J.Rho and T. Jarrett).…
HESS J1943+213: an extreme BL Lac object?
November 2010 Our Galaxy with its spiral arms (from Wikipedia). The distance from the sun (cross of the lines indicating directions of constellations) to the center of the Galaxy is about 8.5 kpc. HESS…
A new SNR shell resolved in TeV gamma rays
October 2010 New very high energy gamma-ray image of HESS J1731-347, resolving a shell coincident with the radio shell G356.6-0.7 (region A). Outside the shell, a gamma-ray excess of 7.5 sigma significance is seen…