News about HESS J1858+020
January 2010 The very high energy gamma ray source HESS J1858+020 is located about 0.6 degr. off the Galactic plane, which is indicated by the dashed line. The color indicates the strength of the…
Five years later: VHE emission from the Galactic Center
December 2009 Composite image of the Galactic Center region, combining Hubble images in the near-infrared, Spitzer Space Telescope images in the infrared, and Chandra X-ray images. The bright white region on the bottom right…
Discovery of VHE Gamma-Ray Emission of a Remarkable Young Composite SNR
November 2009 XMM-Newton X-ray image of supernova remnant G292.2-0.5 and, at its center, pulsar PSR J1119-6127. Colors encode X-ray energies: 0.3-1.5 keV (red), 1.5-3.0 keV (green) and 3.0-10.0 keV (blue). From Gonzalez et al.…
HESS J1507-622 – an Unidentified Source off the Galactic Plane
September 2009 H.E.S.S. gamma-ray sky map of a section of the Milky Way which hosts all three sources at latitude below -1.5 degr.: HESS J1507-622, HESS J1442-642 and HESS J1356-645. In other ranges of…
An Extended Source of Gamma Rays near PSR B1706-44
August 2009 Chandra X-ray image (greyscale) superimposed on a 1384 MHz ATCA radio image of the shell of the supernova remnant G343.1-2.3 (from Romani et al. 2005). The approximate boundary of the remnant is…
The Westerlund 1 Star Cluster
June 2009 The massive young stellar cluster Westerlund 1 (Source: Wikipedia, 2MASS/UMass/IPAC-Caltech/NASA/NSF) contains a large number of massive and hot stars. The size of the cluster is about 1′. Westerlund 1 (Wd1) is the…
A VHE gamma ray source in the W51 region: HESS J1923+141
May 2009 W51 is a giant HII region / supernova remnant complex, also known as G49.2-0.7. The image shows the region in 11 cm radio emission, with the 0.5 degr. diameter supernova remnant shell…
Very High Energy Gamma-Rays from Centaurus A
April 2009 Centaurus A is the closest active radio galaxy, a giant elliptical galaxy about 11 million light years distant. The composite view (left) combines X-ray, optical and radio images (right). In the optical,…
HESS J1731-347 – an old supernova remnant?
March 2009 Very high energy gamma ray image of HESS J1731-347. The image is smoothed with a Gaussian of 0.1 degr. width; the resulting “beam size” is indicated by the green circle. At the…
Another first from PKS 2155-304: a joint H.E.S.S. – Fermi campaign
February 2009 The Fermi Gamma-ray Space Telescope was launched from Cape Canaveral on June 11, 2008, carrying the Large Area Telescope (LAT) as the primary instrument, and the GLAST Burst Monitor (GBM). The LAT…
