Probing the extent of the non-thermal emission from the Vela X region at TeV energies with HESS

Abstract

Vela X is a region of extended radio emission in the western part of the Vela constellation: one of the nearest pulsar wind nebulae, and associated with the energetic Vela pulsar (PSR B0833-45). Extended very-high-energy (VHE) gamma-ray emission (HESS J0835-455) was discovered using the H.

E. S.

S. experiment in 2004. The VHE gamma-ray emission was found to be coincident with a region of X-ray emission discovered with ROSAT above 1.5 keV (the so-called Vela X cocoon): a filamentary structure extending southwest from the pulsar to the centre of Vela X.

Keywords

• Probing
• extent
• non-thermal
• emission
• Vela
• region
• TeV
• energies
• with
• HESS