Observations of supernova remnants with the Sardinia Radio Telescope
Date Issued
2016
Author(s)
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Iacolina, M. N.
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Murtas, G.
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Abstract
In the frame of the Astronomical Validation activities for the 64m Sardinia Radio Telescope, we performed 5-22 GHz imaging observations of the complex-morphology supernova remnants (SNRs) W44 and IC443. We adopted innovative observing and mapping techniques providing unprecedented accuracy for single-dish imaging of SNRs at these frequencies, revealing morphological details typically available only at lower frequencies through interferometry observations. High-frequency studies of SNRs in the radio range are useful to better characterize the spatially-resolved spectra and the physical parameters of different regions of the SNRs interacting with the ISM. Furthermore, synchrotron-emitting electrons in the high-frequency radio band are also responsible for the observed high-energy phenomenology as -e.g.- Inverse Compton and bremsstrahlung emission components observed in gamma-rays, to be disentangled from hadron emission contribution (providing constraints on the origin of cosmic rays).
Coverage
Supernova Remnants: An Odyssey in Space after Stellar Death
Start page
18
Conferenece
Supernova Remnants: An Odyssey in Space after Stellar Death
Conferenece place
Chania, Grecia
Conferenece date
6-11 giugno 2016
Ads BibCode
2016sros.confE..18E
Rights
open.access
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1609.03882-Egron-SNR.pdf
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