- Expansion of SN1993J,
J. M. Marcaide, A. Alberdi, E. Ros, P. Diamond, I. I. Shapiro, G. de Bruyn,
J. C. Guirado, D. L. Jones, T. P. Krichbaum, F. Mantovani, R. A. Preston,
A. Rius, R. T. Schilizzi, C. Trigilio, A. R. Whitney & A. Witzel,
Science, 270:1475-1479 (1995)
- Abstract
A sequence of images from very long baseline interferometry shows that
the
young radio supernova SN 1993J is expanding with circular symmetry.
However,
the circularly symmetric images show emission asymmetries. A scenario in
which
freely expanding supernova ejecta shock mostly isotropic circumstellar
material
is strongly favored. The sequence of images constitutes the first
''movie'' of
a radio supernova.
Eduardo Ros
ros@mpifr-bonn.mpg.de