Statistics – Computation
Scientific paper
Feb 1993
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993a%26a...268..570h&link_type=abstract
Astronomy and Astrophysics (ISSN 0004-6361), vol. 268, no. 2, p. 570-590.
Statistics
Computation
69
Astronomical Models, Light Curve, Supernovae, Bolometers, Computational Astrophysics, Local Thermodynamic Equilibrium, Opacity, Photoionization, Radiative Transfer
Scientific paper
A state of the art radiation transfer code for computing bolometric and monochromatic light curve of type Ia SNE is presented and used to calculate light curves for the N21 delayed detonation model. The results indicate that the temperature structure of envelope depends critically on the use of a time-dependent opacity, the inclusion of line scattering, the correct distinction between the frequency averaging in the radiation energy and radiation flux moment equations, and on the approximation used in the radiation transfer. The coupling between temperature profile and optical depth cannot be neglected. The time-dependent photospheric radius is thus strongly affected by the assumptions and approximations made in a light curve model. This can have important implications for Type Ia SNe both for their use as distance indicators and for their spectral analysis.
Hoeflich Peter
Khokhlov Alexei
Mueller Ewald
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