The shape, expansion rate and distance of supernova 1993J from VLBI measurements

@article{Bartel1994TheSE,
  title={The shape, expansion rate and distance of supernova 1993J from VLBI measurements},
  author={N. Bartel and M. Bietenholz and M. Rupen and J. Conway and A. Beasley and R. Sramek and J. Romney and M. Titus and D. Graham and V. Altunin and D. Jones and A. Rius and T. Venturi and G. Umana and R. L. Francis and M. McCall and M. Richer and C. C. Stevenson and K. Weiler and S. V. Dyk and N. Panagia and W. Cannon and J. Popelar and R. Davis},
  journal={Nature},
  year={1994},
  volume={368},
  pages={610-613}
}
SUPERNOVA 1993J is one of the closest supernovae discovered this century, allowing observations with very high linear resolution. Radio emission from the supernova became visible within days of the first optical peak, and has remained strong, making this an ideal source for very-long-baseline interferometry (VLBI) investigations1–7. Here we report the results of a series of VLBI observations, made from one to three months after the supernova explosion. We find that the supernova is circularly… Expand
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