Note to users. If you're seeing this message, it means that your browser cannot find this page's style/presentation instructions -- or possibly that you are using a browser that does not support current Web standards. Find out more about why this message is appearing, and what you can do to make your experience of our site the best it can be.

Site Tools

  • AAAS
  • Subscribe
  • Feedback

Site Search

Search Advanced

Science 1 December 1995:
Vol. 270. no. 5241, pp. 1452 - 1453
DOI: 10.1126/science.270.5241.1452
Prev | Table of Contents | Next

Perspectives

Roger A. Chevalier

A recently discovered supernova, designated SN 1993J, has been imaged with exceptional resolution with a sensitive array of radiotelescopes. As Chevalier discusses in his Perspective, the imaging results reported by Marcaide et al. in this issue (p. 1475) directly show the expansion of a highly symmetrical spherical shock wave. Variations in radio emission around the expanding shell may enable astronomers to learn more about these very energetic explosions.

The author is in the Department of Astronomy, University of Virginia, Charlottesville, VA 22903, USA. E-mail: rac5x@virginia.edu




ADVERTISEMENT
Click Me!

ADVERTISEMENT

To Advertise     Find Products

Science. ISSN 0036-8075 (print), 1095-9203 (online)