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Spitzer measurements of atomic and molecular abundances in the Type IIPSN 2005af

  • Rubina Kotak
  • , P. Meikle
  • , M. Pozzo
  • , S.D. Van Dyk
  • , D. Farrah
  • , R. Fesen
  • , A.V. Filippenko
  • , R.J. Foley
  • , C. Fransson
  • , C.L. Gerardy
  • , P.A. Hoflich
  • , P. Lundqvist
  • , Seppo Mattila
  • , J. Sollerman
  • , J.C. Wheeler

Research output: Contribution to journalArticlepeer-review

Abstract

We present results based on mid-infrared (3.6-30 mm) observations with the Spitzer Space Telescope of the nearby Type IIP supernova 2005af. We report the first ever detection of the SiO molecule in a Type IIP supernova. Together with the detection of the CO fundamental, this is an exciting finding as it may signal the onset of dust condensation in the ejecta. From a wealth of fine-structure lines we provide abundance estimates for stable Ni, Ar, and Ne that, via spectral synthesis, may be used to constrain nucleosynthesis models.
Original languageEnglish
Pages (from-to)L117-L120
Number of pages4
JournalAstrophysical Journal
Volume651
Publication statusPublished - 2006

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