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A type IIb model for supernova 1993J

Abstract

SPECTRAL analyses of supernovae have allowed them to be broadly divided into two classes, type I and type II. Supernova 1993J was identified1–3 as a type II supernova following the detection of a weak hydrogen line in its early spectrum. But the optical light curve4 of SN1993J is atypical for this class of supernova, with the intensity rising to a second maximum after the initial outburst. The light curve around the second maximum more closely resembles that of the type Ib supernova 1983N (ref. 5), the progenitor of which may have been a helium star6. Here we show that the secondary brightening and subsequent decay of the light curve can be explained by the radioactive decay of 56Co; combined with the early spectrum, this suggests that the progenitor may have been a red supergiant with an unusually thin hydrogen-rich envelope. If this model is correct, the spectrum will rapidly evolve from type II to type Ib, in which case SN1993J would be classified as a type lib supernova7–8. We suggest that the progenitor was in a binary system, and had lost most of its hydrogen envelope to the companion star before the explosion.

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References

  1. Filippenko, A. V. IAU Circ. No. 5731 (1993).

  2. Garnavich, P. & Ann, H. B. IAU Circ. No. 5731 (1993).

  3. Taniguchi, Y. et al. Publis. Astr. Soc. Japan 45, L43–L46 (1993).

    ADS  CAS  Google Scholar 

  4. Schmidt, G. et al. Nature (in the press).

  5. Panagia, N. in High Energy Phenomena Around Collapsed Stars (ed. Pacini, F.) 33–49 (Reidel, Dordrecht, 1987).

    Book  Google Scholar 

  6. Shigeyama, T., Nomoto, K., Tsujimoto, T. & Hashimoto, M. Astrophys. J. 361, L23–L27 (1990).

    ADS  CAS  Article  Google Scholar 

  7. Woosley, S. E., Pinto, P. A. & Ensman, L. M. Astrophys. J. 324, 466–489 (1988).

    ADS  CAS  Article  Google Scholar 

  8. Filippenko, A. V. Astr. J. 96, 1941–1948 (1988).

    ADS  CAS  Article  Google Scholar 

  9. Doggett, J. B. & Branch, D. Astr. J. 90, 2303–2311 (1985).

    ADS  CAS  Article  Google Scholar 

  10. Arnett, W. D. & Falk, S. W. Astrophys. J. 210, 733–740 (1976).

    ADS  CAS  Article  Google Scholar 

  11. Blinnikov, S. I. & Bartunov, O. S. Astr. Astrophys. 273, 106–122 (1993).

    ADS  CAS  Google Scholar 

  12. Ensman, L. M. & Woosley, S. E. Astrophys. J. 333, 754–776 (1988).

    ADS  CAS  Article  Google Scholar 

  13. Nomoto, K., Shigeyama, T. & Hashimoto, M. Lecture Notes in Physics 305, 319–334 (1988).

    ADS  Article  Google Scholar 

  14. Arnett, D. Astrophys. J. 343, 834–838 (1988).

    ADS  Article  Google Scholar 

  15. Nomoto, K. & Hashimoto, M. Phys. Rep. 163, 13–36 (1988).

    ADS  CAS  Article  Google Scholar 

  16. Hachisu, I., Matsuda, T., Nomoto, K. & Shigeyama, T. Astrophys. J. 368, L27–L30 (1991).

    ADS  CAS  Article  Google Scholar 

  17. Shigeyama, T. et al. Astrophys. J. (in the press).

  18. Hashimoto, M., Iwamoto, K. & Nomoto, K. Astrophys. J. (in the press).

  19. Humphreys, R. M. in Wolf-Rayet Stars and Interrelations with Other Massive Stars in Galaxies (eds van der Hucht, K. A. & Hidayat, B.) 485–497 (Kluwer, Dordrecht, 1991).

    Book  Google Scholar 

  20. Swartz, D. A., Wheeler, J. C. & Harkness, R. P. Astrophys. J. 374, 266–280 (1991).

    ADS  CAS  Article  Google Scholar 

  21. Fransson, C. & Kozma, C. Astrophys. J. 408, L25–L28 (1993).

    ADS  CAS  Article  Google Scholar 

  22. Jannuzi, B., Schmidt, G., Elston, R. & Smith, P. IAU Circ. No. 5776 (1993).

  23. Hu, J. Y., Li, Z. W., Jiang, X. J. & Wang, L. F. IAU Circ. No. 5777 (1993).

  24. Kumagai, S., Shigeyama, T. & Nomoto, K. in SN1987A and Other Supernovae (eds Danziger, I. J. & Kjär, K.) 203–207 (European Southern Observatory, Garching, 1991).

    Google Scholar 

  25. Nomoto, K., Kumagai, S. & Shigeyama, T. in AIP Conf. Proc. 232: Gamma-Ray Line Astrophysics (eds Durouchoux, P. & Prantzos, N.) 236–251 (Am. Inst. Phys., New York, 1991).

    Book  Google Scholar 

  26. The, L.-S., Clayton, D. D. & Burrows, A. in Wolf-Rayet Stars and Interrelations with Other Massive Stars in Galaxies (eds van der Hucht, K. A. & Hidayat, B.) 537–545 (Kluwer, Dordrecht, 1991).

    Book  Google Scholar 

  27. Henry, R. B. C. & MacAlpine, G. M. Astrophysics. J. 258, 11–21 (1982).

    ADS  CAS  Article  Google Scholar 

  28. Clark, D. H. Superstars (McGraw–Hill, New York, 1984).

    Google Scholar 

  29. Filippenko, A. V. & Matheson, T. IAU Circ. No. 5787 (1993).

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Nomoto, K., Suzuki, T., Shigeyama, T. et al. A type IIb model for supernova 1993J. Nature 364, 507–509 (1993). https://doi.org/10.1038/364507a0

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