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| Paper: |
Close Binaries, Rotation, and Instabilities in Supernova Progenitors |
| Volume: |
465, Four Decades of Massive Star Research - A Scientific Meeting in Honor of Anthony J. Moffat |
| Page: |
290 |
| Authors: |
Smith, N. |
| Abstract: |
Statistics of various types of supernovae suggest that RLOF in close
binaries rather than single-star mass loss dominates the removal of
the H envelope for massive stars across a wide range of masses, and
that very massive stars that shed their H envelopes via stellar
winds to make WR stars are not the common progenitors of most
stripped-envelope (Types Ic, Ib, and IIb) supernovae. Also, RLOF
can have profound effects on the mass gainer in these binary
systems, including rapid rotation and instability. The eclipsing
binary RY Scuti is a massive binary that is caught in this brief
RLOF phase. I will discuss recent results concerning the kinematics
of RY Scuti's toroidal nebula that provide interesting clues about
the mass loss, mass transfer, and instability in this type of
system. I will also discuss corresponding implications for the
progenitor systems of stripped-envelope supernovae. |
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