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Low-frequency Radio Absorption in Tycho’s Supernova Remnant

  • Authors: Maria Arias, Jacco Vink, Ping Zhou, Francesco de Gasperin, Martin J. Hardcastle, and Tim W. Shimwell

2019 The Astronomical Journal 158 253.

  • Provider: AAS Journals

Caption: Figure 5.

Results of fitting Equation (1) to the maps. For each pixel we fitted for amplitude S0, the spectral index α, and the optical depth for the ISM material at 40 MHz τ40,ISM. The units of the S0 map on the left are Jy bm−1. The errors are the diagonal term of the covariance matrix corresponding to each parameter.

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