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Direct analysis of type Ia supernovae spectra.
(2000)
This work describes how to use and modify the highly parameterized spectrum synthesis code (SYNNEW). SYNNEW can be used to derive information directly from type Ia supernovae spectra.
The direct analysis of spectra of type Ia supernovae.
(2000)
By using SYNOW, we show that most of the spectroscopic differences among type Ia supernovae can be explained by the temperature; therefore, the composition of most of the type Ia supernovae is essentially the same. In ...
The Sobolev approximation in a spherical shell expanding with constant radial velocity.
(2000)
A simple model of line radiative transfer in a circumstellar shell surrounding a supernova is presented. An examination of optical depth in an atmosphere with power-law expansion and a single source of opacity highlights ...