Abstract Details
| Name: Nayana A J Affiliation: NCRA-TIFR Conference ID: ASI2018_462 Title : uGMRT observations of a TeV SNR G353.6-0.7 Authors and Co-Authors : Poonam Chandra NCRA-TIFR Abstract Type : Poster Abstract Category : Stars,ISM and the Galaxy Abstract : Supernova shocks are suggested as probable candidates of cosmic ray acceleration sites, through Diffusive Shock Acceleration. A TeV source associated with Supernova Remnant (SNR) becomes an interesting laboratory in this context. HESS J1731−347 also known as SNR G353.6−0.7 is one of the five known shell-type supernova remnants (SNRs) emitting in the very high energy (VHE, energy > 0.1 TeV) γ -ray domain. SNR G353.6−0.7 is of size ∼ 30 arcmin and is an ideal candidate to study the particle acceleration mechanism in SNR shocks. Studying the radio morphology of the remnant and constraining the spectral index is crucial to understand the acceleration mechanism. We present the upgraded Giant Metrewave Radio Telescope (uGMRT) observations of SNR G353.6−0.7 in the 250-500 MHz band. The excellent uv coverage of the uGMRT is critical to see the complete structure of the SNR and to estimate the correct flux. We investigate the spatial structure of the spectral indices over the SNR using the wide-band capability of the uGMRT. |