主要内容:
理论拟合了SN 1994I（Ic型超新星）的光变曲线。大致方法是模拟超新星的爆发。
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文章信息:
| Title: |
| Theoretical light curves for the type IC supernova SN 1994I |
| Authors: |
| Iwamoto, Kohichi; Nomoto, Ken'ichi; Hoflich, Peter; Yamaoka, Hitoshi; Kumagai, Shiomi; Shigeyama, Toshikazu |
| Affiliation: |
| AA(University of Tokyo, Tokyo, Japan), AB(University of Tokyo, Tokyo, Japan), AC(Harvard University, Cambridge, MA, US), AD(Harvard University, Cambridge, MA, US), AE(The Institute of Physical and Chemical Research, Saitama, Japan), AF(The Institute of Physical and Chemical Research, Saitama, Japan) |
| Publication: |
| Astrophysical Journal, Part 2 - Letters (ISSN 0004-637X), vol. 437, no. 2, p. L115-L118 (ApJ Homepage) |
| Publication Date: |
| 12/1994 |
Abstract
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 A
V 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.
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