Optical Photometry of the Type Ia SN 1999ee and the Type Ib/c SN 1999ex in IC 5179

Details Optical Photometry of the Type Ia SN 1999ee and the Type Ib/c SN 1999ex in IC 5179 Optical Photometry of the Type Ia SN 1999ee and the Type Ib/c SN 1999ex in IC 5179

Jun 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002aas...200.9503s&link_type=abstract

American Astronomical Society, 200th AAS Meeting, #95.03; Bulletin of the American Astronomical Society, Vol. 34, p.956

Astronomy and Astrophysics

Astronomy

Scientific paper

We present optical light-curves of the Type Ia supernova SN 1999ee and the Type Ib/c SN 1999ex, both located in the galaxy IC 5179, based on observations gathered through the course of the Supernova Optical and Infrared Survey. SN 1999ee has an extremely well sampled light-curve in UBVRIZ filters spanning from 9 days before Bmax through 53 days after. UBVRIZ data for SN 1999ex present us with the first ever observed shock wave breakout of a Type Ib/c event as well as unprecedented coverage of the supernova through maximum light. Observations show that the rapidly evolving shockwave breakout occurred 17 days before maximum light. This data provides us with compelling evidence that the progenitor system of such an event was a massive star lacking a hydrogen envelope which underwent core collapse, and not the thermonuclear runaway of a white dwarf or coalescence of some form of a compact object(s).

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