期刊
ASTROPHYSICAL JOURNAL
卷 651, 期 2, 页码 L117-L120出版社
UNIV CHICAGO PRESS
DOI: 10.1086/509655
关键词
supernovae : general; supernovae : individual (SN 1987A, SN 2004dj, SN 2005af)
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.
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