Evolution and Spectrum of the Radio Emission of Tycho’s Supernova Remnant


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详细

The radio spectrum of Tycho’s Supernova Remnant is constructed at frequencies 12.6–143 000 MHz for epoch 2010.3, taking into account the secular decrease in the radio flux density of the remnant at the rate d = −(0.46 ± 0.03)%/year:

\(S_\nu ^{3C10} (t = 2010.3) = (43.1 \pm 1.8 Jy)(\nu [GHz])^{ - (0.592 \pm 0.019) + (0.041 \pm 0.012)\log (\nu [GHz])} .\)
The spectrum has positive curvature. The presence of a low-frequency turnover in the spectrum of the radio source 3C10 with its maximum at 7.7 MHz is predicted, due to absorption in the interstellar medium in the direction toward the source.

作者简介

E. Vinyaikin

Lobachevsky State University of Nizhny Novgorod (NNSU)

编辑信件的主要联系方式.
Email: evin@nirfi.unn.ru
俄罗斯联邦, Nizhny Novgorod, 603950

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