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The Rise Time of the Normal Type Ia SN 1990N

  • Paolo A. Mazzali (a1) and Brian P. Schmidt (a2)

Abstract

The earliest spectrum available of a well-observed, local type Ia SN, the UV-optical spectrum of SN 1990N obtained 14 days before B maximum, was modelled with a Monte Carlo code in order to determine its epoch and consequently the rise time from explosion to B max, which is important for fitting template light curves. If a standard density distribution and composition for the SN ejecta are used, and the Cepheid distance modulus to the host galaxy, NGC4639 in the Virgo cluster, μ = 32.0, is adopted, the spectrum is best reproduced for an epoch t = 5.5 ± 1 days, implying for the SN a rise time of 19.5 ± 1 days. For a shorter μ, t is smaller, but for a T-F distance μ = 31.4 the solution is not consistent.

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References

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Arnett, D. 1996, Supernovae and Nucleosynthesis (Princeton: Princeton U. P.)
Branch, D., Doggett, J. B., Nomoto, K. & Thielemann, F.-K. 1985, ApJ, 294, 619.
Leibundgut, B., Kirshner, R. P., Filippenko, A. V. et al. 1991, ApJ, 371, L23.
Lucy, L. B. 1999, A&A, 345, 211.
Mazzali, P. A. 2000, A&A, in press.
Mazzali, P. A. & Lucy, L. B. 1993 A&A, 279, 447.
Mazzali, P. A., Lucy, L. B., Danziger, I. J. et al. 1993, A&A, 269, 423.
Perlmutter, S., Gabi, S., Goldhaber, G. et al. 1997, ApJ, 483, 565.
Phillips, M. M. 1993, ApJ, 413, L105.
Pierce, M. J. 1994, ApJ, 430, 53.
Riess, A. G., Press, W. H. & Kirshner, R. P. 1995, ApJ, 438, L17.
Riess, A. G., Filippenko, A. V., Challis, P. et al. 1998, AJ, 116, 1009.
Riess, A. G., Filippenko, A. V., Li, W. & Schmidt, B. P., 1999a, AJ, 118, 2668.
Riess, A. G., Filippenko, A. V., Li, W. et al. 1999b, AJ, 118, 2674.
Sandage, A., Saha, A., Tammann, G. A. et al. 1996, ApJ, 460, L15.
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Proceedings of the International Astronomical Union
  • ISSN: -
  • EISSN: 0074-1809
  • URL: /core/journals/proceedings-of-the-international-astronomical-union
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