The Crab Nebula seen with the H.E.S.S. II telescope
December 2012 The Crab Nebula was obviously one of the early commissioning targets for the H.E.S.S. II telescope. (Image Credit: NASA, ESA, J. Hester, A. Loll (ASU); Acknowledgement: Davide De Martin (Skyfactory)) Virtually every…
HESS J1458-608, a pulsar wind nebula associated with the Fermi pulsar PSR J1459-60
November 2012 Very high energy gamma ray map of HESS J1458-608. The black contours show detection significance of 5 and 7 sigma. The position of the pulsar PSR J1459-60 is marked by green and…
The new source HESS J1641-463 emerging near HESS J1640-465
October 2012 Radio image of the vicinity of the gamma ray source HESS J1640-456, with the two remnants G338.3-0.0 and G338.5+0.1. 843 MHz image from the Sydney University Molonglo Sky Survey. With increasing exposure…
10th Anniversary: The H.E.S.S. gamma ray sky
September 2012 TeVCat sky map of H.E.S.S.-discovered gamma ray sources, as of late August 2012. The colors indicates the likely nature of sources: Supernova remnants (green), pulsar wind nebulae (violet), binaries (yellow), star cluster/star…
The currently most distant source of very high energy gamma rays
August 2012 Optical finding chart for KUV 00311-1938, aka SHBL J003334.2-192133 aka 1RXS J003334.6-192130, from Piranomonte et al. 2007. Shown are the X-ray (large) and radio (small) error circles. Distant Active Galactic Nuclei are…
High and very high energy gamma-rays from the blazar SHBL J001355.9-185406
July 2012 H.E.S.S. gamma-ray image of SHBL J001355.9-185406. Preliminary. Active galactic nuclei (AGN) are among the most powerful gamma-ray emitters in the observed Universe, and constitute a large fraction of objects seen either by…
Discovery of very high energy gamma rays from the quasar PKS 1510-089
June 2012 5 GHz VLA radio image of the blazar PKS 1510-089 with its jet (O’Dea et al. 1988, Sambruna et al. 2004) Blazars are a composite class, consisting of BL Lacertae type objects…
Emission from the region of SNR G22.7-0.2
May 2012 VLA radio image of the region of the supernova remnants G23.3-0.3 (left) – also known as W41, see SOM June 2006 – and G22.7-0.2, center. Source: MAGPIS – The Multi-Array Galactic Plane…
A mysterious gamma ray signal
April 2012 Can a yellow main sequence star with a distant companion star produce gamma rays? Credit: ESO/L. Calcada In April 2011, the H.E.S.S. telescopes targeted the object 1RXS J142209.1-174546 as a potential source…
The Active Galactic Nucleus 1RXS J101015.9−311909
March 2012 Image of the host galaxy of the X-ray source 1RXS J101015.9−311909, from the 2MASS sky survey (Jarrett et al. 2000). Active galactic nuclei (AGN) with high X-ray and radio emission represent promising…