MSH 15-5 2 – a Pulsar Wind Nebula with a Jet
Chandra X-ray image (Gaensler et al. 2002) of the region around the MSH 15-5 2 remnant (also known as G320.4-1.2). At the center the 150 ms X-ray, gamma and radio pulsar PSR B1509-58, surrounded…
HESS J1303-631 – the mystery TeV source
Is this what is behind the TeV source HESS J1303-631? Some stars, like the Wolf-Rayet star WR124, have enormous stellar winds resulting in shock waves akin to those produced in supernova explosions, and potentially…
TeV gamma rays from the Binary Pulsar PSR B1259-63
Illustration of a binary system similar to the PSR B1259-63/SS 2883 system, where the pulsar orbits a massive Be star with a disk-like outflow of stellar material (from Hubble archive). The actual viewing direction…
Another Shell-Type Supernova Remnant: RX J0852.0–4622 (“Vela Junior”)
March 2005 The supernova remnant RX J1713.7–3946 (SOM 2005-01) was the first remnant where the shell structure was detected in VHE gamma rays, demonstrating that the supernova shock wave accelerates particles. The detailed interpretation…
The Supernova Remnant G0.9+0.1: VHE gamma rays from the pulsar wind nebula
February 2005 Radio images of the Galactic Center region (see SOM 2004-12) include a number of shell-type supernova remnants. G0.9+0.1 is a composite remnant, showing a partial shell – about 8′ in diameter –…
The Supernova Remnant RX J1713.7–3946: High-energy particle acceleration in the shell of a supernova remnant
January 2005 Supernova remnants have long been suspected as the source of comic rays; they seem to be the only sources capable of supplying the energy required to feed the bulk of the cosmic…
The Galactic Center
December 2004 The Galactic Center region harbors a variety of potential sources of high-energy radiation, such as the supermassive black hole Sgr A* and a number of supernova remnants, among them the Sgr A…
The Active Galaxy PKS 2155–304
November 2004 At a redshift of 0.12, the Active Galactic Nucleus (AGN) PKS 2155-304 is one of the most distant well-established sources of TeV gamma rays, together with the source H 1426+428 at a…
The Crab Nebula
October 2004 Since its discovery as a TeV source by the Whipple telescope in 1989, the Crab Nebula serves as a standard candle for TeV astronomy and usually is one of the first targets…
