Radio study of TeV sources from new GMRT observations

JORGE LEONARDO SUPÁN; GABRIELA CASTELLETTI; BHAL CHANDRA JOSHI; MAYURESH SURNIS; DANIEL SUPANITSKY

Pune

Congreso; 33rd Meeting of the Astronomical Society of India; 2015

National Centre for Radio Astrophysics (NCRA) of the Tata Institute of Fundamental Research (TIFR)

A number of TeV sources have been discovered by High Energy Stereoscopic System (H.E.S.S.) in the last decade. Out of these, TeV sources associated with supernova remnants (SNRs) are particularly important due to the possibility of the presence of a putative pulsar and an associated pulsar wind nebula (PWN), which can power the TeV source by leptonic mechanisms. Alternatively, these sources can also be powered by a hadronic scenario due to interaction of SNR with its surroundings. Here, we report on imaging and time-series observations carried out with the GMRT to understand the nature of the gamma-ray SNR G15.4+0.1 and the SNR candidate G25.5+0.0. Our scientific project also includes new observations of the sources G29.4+0.1 and G353.6-0.7, scheduled during the cycle 27 of the GMRT.