Документ взят из кэша поисковой машины. Адрес
оригинального документа
: http://www.stsci.edu/~kgordon/papers/2005ApJ...627L.113B.html
Дата изменения: Thu Jan 21 20:10:00 2016 Дата индексирования: Sun Apr 10 16:19:50 2016 Кодировка: ISO8859-5 Поисковые слова: п п п п п п п п п п п п п п |
Dust emission from the Type II supernova SN 2002hh in NGC 6946 has been detected at mid-infrared wavelengths by the Spitzer Space Telescope from 590 to 758 days after outburst and confirmed by higher angular resolution Gemini North mid-IR observations. The day 600 5.8-24 ЮМm emission can be fit by a 290 K blackbody having a luminosity of 1.6У?107 Lsolar. The minimum emitting radius of 1.1У?1017 cm is too large for the emitting dust to have been formed in the supernova ejecta. Using radiative transfer models and realistic dust grain parameters, fits to the observed flux distribution could be obtained with an optically thick dust shell having a mass of 0.10-0.15 Msolar, corresponding to a total dust+gas mass in excess of 10 Msolar, suggesting a massive M supergiant or luminous blue variable precursor to this self-obscured object.
[ADS]
ADS Citation Query
# citations = 25
citations vs. year [year,citations]
[2006,6][2007,4][2008,2][2009,4][2010,2][2011,3][2012,1][2013,2][2015,1]
Copyright © 2012 Karl D. Gordon All Rights Reserved