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Session 39 - Supernovae.
Display session, Thursday, January 08
Exhibit Hall,

[39.03] VLBI Observations of the Evolution of SN1993J

M. Bietenholz, N. Bartel (York University), M. Rupen, A. J. Beasley (NRAO), D. A. Graham (MPIfR), V. I. Altunin (JPL), T. Venturi (IRA-Bologna), G. Umana (IRA-Noto), J. E. Conway (OSO)

We present an updated movie showing the evolution of supernova SN1993J. The movie was made from phase-referenced multi-epoch VLBI observations using a global VLBI array and covering the entire lifetime of SN1993J to date. We have improved our measurement of the deceleration of SN1993J and the thickness of the shell. We also present radio spectral index maps of SN1993J, and discuss their implications.

Program listing for Thursday