Evidence for Core Collapse in the Type Ib/c SN 1999ex

Details Evidence for Core Collapse in the Type Ib/c SN 1999ex Evidence for Core Collapse in the Type Ib/c SN 1999ex

2002-12-17

arxiv.org/abs/astro-ph/0212368v1

Astronomy and Astrophysics

Astrophysics

6 pages, 4 figures, to appear in ``From Twilight to Highlight: The Physics of Supernovae'', Eds. W. Hillebrandt and B. Leibund

Scientific paper

10.1007/10828549_29

We present optical and infrared spectra of SN 1999ex that reveal a clear example of an intermediate Type Ib/c case. This suggests a continuous spectroscopic sequence between Type Ib and Type Ic supernovae. We report UBVRIz photometric observations of SN 1999ex that started only one day after explosion, which permitted us to witness an elusive transient cooling phase that lasted 4 days. The initial cooling and subsequent radioactive heating produced a dip in the lightcurve which is consistent with explosion models involving core collapse of evolved massive helium stars, and inconsistent with lightcurves resulting from the thermonuclear runaway of compact white dwarfs.

Affiliated with

Also associated with

No associations

Rating

Evidence for Core Collapse in the Type Ib/c SN 1999ex does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Evidence for Core Collapse in the Type Ib/c SN 1999ex, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Evidence for Core Collapse in the Type Ib/c SN 1999ex will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-258598