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

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arxiv astro-ph/0609706 v1 pith:ZVSUFCAP submitted 2006-09-26 astro-ph

Rubina Kotak (ESO) , Peter Meikle , Monica Pozzo (Imperial College London) , Schuyler D. van Dyk (SSC) , Duncan Farrah (Cornell Uni.) , Robert Fesen (Dartmouth College) , Alexei V. Filippenko , Ryan Foley (Berkeley)
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Claes Fransson (Stockholm Obs.) Christopher L. Gerardy (Imperial College London) Peter A. Hoeflich (Florida State Uni.) Peter Lundqvist (Stockholm Obs.) Seppo Mattila (Queen's Uni. Belfast) Jesper Sollerman (DARK Cosmology Centre) J. Craig Wheeler (Uni. Texas at Austin)
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keywords detectionspitzersupernovatypeabundanceabundancesatomiccondensation
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We present results based on Spitzer Space Telescope mid-infrared (3.6-30 micron) observations of the nearby 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 which, via spectral synthesis, may be used to constrain nucleosynthesis models.

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Cited by 2 Pith papers

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