Cosmic Ray Acceleration and Non-thermal X-rays in Cyg OB2

Details Cosmic Ray Acceleration and Non-thermal X-rays in Cyg OB2 Cosmic Ray Acceleration and Non-thermal X-rays in Cyg OB2

Sep 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003cxo..prop.1392b&link_type=abstract

Chandra Proposal ID #05200474

Astronomy and Astrophysics

Astrophysics

Chandra Proposal Id #05200474

Scientific paper

The astrophysical sites where Galactic cosmic ray (GCR) nuclei gain their extreme energies continue to defy indentification. It has been argued that the interacting, supersonic winds blowing from the many massive stars in young stellar associations - together with any SNRs therein - will set up shocks whose scale, power and duration could accelerate particles to CR energies. Thus, the HEGRA group's recent report of a steady and extended TeV-range gamma-ray source lying within the Cygnus OB2 association is extremely interesting. We obtained a short CHANDRA DDT + VLA exposure of this source. Here we propose to make a deeper study, again with the VLA, in order to ascertain whether OB associations could be really be accelerating cosmic rays, as appears to be the case.

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