Spectropolarimetric Diagnostics of Thermonuclear Supernova Explosions
نویسندگان
چکیده
منابع مشابه
Spectropolarimetric diagnostics of thermonuclear supernova explosions.
Even at extragalactic distances, the shape of supernova ejecta can be effectively diagnosed by spectropolarimetry. We present results for 17 type Ia supernovae that allow a statistical study of the correlation among the geometric structures and other observable parameters of type Ia supernovae. These observations suggest that type Ia supernova ejecta typically consist of a smooth, central, iron...
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We consider some of the spectral and polarimetric signatures of the gravitational confined detonation scenario for Type Ia supernova explosions. In this model, material produced by an off-center deflagration (which itself fails to produce the explosion) forms a metal-rich atmosphere above the white dwarf surface. Using hydrodynamical simulations, we show that this atmosphere is compressed and a...
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Several progenitor scenarios have been suggested for Type Ia supernovae. Here we discuss the consequences for the explosion mechanism and for observables of some of them, which are explored by means of multi-dimensional hydrodynamic and radiation transfer simulations. While the observables predicted from delayed detonations of Chandrasekhar-mass white dwarfs agree reasonably well with the data,...
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Over the past decade a large number of supernovae have been observed. We have detailed spectra and lightcurves of many events. These observations have shown that there is a lot of diversity in events, and looking at the properties of Ias with host galaxy have led to the argument that there may be distinct populations or multiple progenitor mechanisms at work. Finally, some observations suggest ...
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ژورنال
عنوان ژورنال: Science
سال: 2006
ISSN: 0036-8075,1095-9203
DOI: 10.1126/science.1121656