Computer Science – Numerical Analysis
Scientific paper
Dec 1994
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994apj...437l.115i&link_type=abstract
Astrophysical Journal, Part 2 - Letters (ISSN 0004-637X), vol. 437, no. 2, p. L115-L118
Computer Science
Numerical Analysis
84
Binary Stars, Carbon Stars, Light Curve, Stellar Envelopes, Stellar Models, Supernovae, Distance, Gamma Ray Observatory, Monochromatic Radiation, Nickel Isotopes, Numerical Analysis, Radiative Transfer, Stellar Mass
Scientific paper
SN 1994I in M51 has provided light curves in various wavelength bands allowing a distinction between models of Type Ic supernovae. We present bolometric and monochromatic light curves of exploding C+O stars that form from approximately 13-15 solar mass stars through the losses of the H-rich and He envelopes in close binary systems. The slopes of the calculated light curves are sensitive to the models and found to be in excellent agreement with the observed light curves for the 0.9 solar mass ejecta model. A high interstellar reddening AV is approximately equal to 1.4 mag) is required. From the light curve fits, a distance modulus of 29.2 +/- 0.3 mag is derived for M51. The ejected Ni-56 mass is found to be 0.07(plus 0.035 or minus 0.025) solar mass. Possibilities to observe gamma rays from SN 1994I with Compton Gamma Ray Observatory (CGRO) are discussed.
Höflich Peter
Iwamoto Kohichi
Kumagai Shiomi
Nomoto Ken'ichi
Shigeyama Toshikazu
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