Early Spectroscopic Identification of SN 2008D

  title={Early Spectroscopic Identification of SN 2008D},
  author={D. Malesani and J. Fynbo and J. Hjorth and G. Leloudas and J. Sollerman and M. Stritzinger and P. Vreeswijk and D. J. Watson and J. Gorosabel and M. Michałowski and C. Thone and T. Augusteijn and D. Bersier and P. Jakobsson and A. O. Jaunsen and C. Ledoux and A. Levan and B. Milvang-Jensen and E. Rol and N. Tanvir and K. Wiersema and D. Xu and L. Albert and M. Bayliss and C. Gall and L. Grove and B. P. Koester and E. Leitet and T. Pursimo and I. Skillen},
  journal={The Astrophysical Journal},
  • D. Malesani, J. Fynbo, +27 authors I. Skillen
  • Published 2008
  • Physics, Computer Science
  • The Astrophysical Journal
  • SN 2008D was discovered while following up an unusually bright X-ray transient (XT) in the nearby spiral galaxy NGC 2770. We present early optical spectra ( obtained 1.75 days after the XT) which allowed the first identification of the object as a supernova ( SN) at redshift z = 0.007. These spectra were acquired during the initial declining phase of the light curve, likely produced in the stellar envelope cooling after shock breakout, and rarely observed. They exhibit a rather flat spectral… CONTINUE READING
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