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The effects of mixing of the ejecta on the hard X-ray emissions from SN 1987A (1988)

Ebisuzaki, Toshikazu ; Shibazaki, Noriaki

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Publication Date: 2011-08-19

Description: The X-ray and gamma-ray emissions expected from SN 1987A have been calculated, taking into account mixing of material in the ejecta. Nuclear gamma rays emitted by Co-56 are scattered down to the hard X-ray band by multiple Compton scatterings. Nomoto's 11E1Y6 model for the ejecta of SN 1987A is used. X-ray light curves in the 10-30 keV band and spectra above 20 keV calculated with an inner mixed region of 5 + or - 1 solar mass are consistent with the observations performed with the Ginga satellite and the Kvant/Roentgen mission. On the basis of this comparison, further evolutions of the hard X-ray, gamma-ray, and optical/infrared emissions are discussed.

Keywords: ASTROPHYSICS

Type: Astrophysical Journal, Part 2 - Letters to the Editor (ISSN 0004-637X); 327; L5-L8

Format: text

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