Astronomy and Astrophysics – Astrophysics
Scientific paper
Sep 2009
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009aspc..407..349o&link_type=abstract
The Low-Frequency Radio Universe ASP Conference Series, Vol. 407, proceedings of the conference held 8-12 December 2008, at Nati
Astronomy and Astrophysics
Astrophysics
2
Scientific paper
We have observed 4 VHE gamma-ray sources discovered by the High Energy Stereoscopic System (H.E.S.S.) with the Giant Metrewave Radio Telescope (GMRT). The sources viz., HESS J1813-178, HESS J1825-137, HESS J1834-087, and HESS J1837-069 were observed simultaneously at 0.61 and 0.235 GHz and at 1.28 GHz. Resolved source counterparts for 3 of these were detected at all the three frequencies. None was detected for HESS J1825-137. We investigate the consistent multiwavelength behaviour of these sources and plausible gamma-ray emission mechanisms.
Osborne John L.
Pandey-Pommier Mamta
Shankar Udaya N.
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