NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2019-06-19 T21:42:54 PDT
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For refcode 2002PASJ...54..905G:
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Copyright by Astronomical Society of Japan. 2002PASJ...54..905G Carbon Monoxide in the Type Ic Supernova 2000ew Gerardy, Christopher L.; Fesen, Robert A.; Nomoto, Ken'ichi; Maeda, Keiichi; Hoflich, Peter; Wheeler, J. Craig Abstract. We present K-band (1.9-2.5 microns) spectra of the Type Ic SN 2000ew observed with IRCS on the Subaru Telescope. These data show the first detection of carbon monoxide (CO) emission in a Type Ic supernova. The detection of CO in SN 2000ew provides further evidence that molecule formation may be a common occurrence in core-collapse supernova ejecta. The spectrum also contains narrow emission lines of [Fe II ] and He I probably from dense clumps of hydrogen-poor circumstellar gas surrounding SN 2000ew. Our spectrum of SN 2000ew shows no trace of an unidentified feature seen near 2.26 {mu} m, just blueward of the CO emission, in the spectrum of SN 1987A; we discuss proposed detections of this feature in other Type II supernovae. Keywords: infrared: stars, ISM: molecules, supernovae: general, supernovae: individual (SN 2000ew)
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