Imagine the Universe!

Supernova X-rays

In April 1993, the ASCA satellite observed X-rays from a supernova in the galaxy M81 (which is also called NGC 3031). Scientists gave the source the name "SN 1993J", which means that it was the 10th supernova observed to occur in the year 1993. The source is clearly seen showing up a few arcminutes away from the center, or core, of M81, where the X-rays from the relatively faint 'active nucleus' (or a micro-quasar) can be seen. The observations were made only 10 days after the supernova explosion occurred. Also seen in the movie is the image of an X-ray binary near the supernova. They are clearly separated, even though they are a close 1 arcminute apart on the sky (the real distance between the two is, well, astronomical!). This shows the excellent spatial resolution of the ASCA instruments.

Imagine the Universe is a service of the High Energy Astrophysics Science Archive Research Center (HEASARC), Dr. Alan Smale (Director), within the Astrophysics Science Division (ASD) at NASA's Goddard Space Flight Center.

The Imagine Team
Acting Project Leader: Dr. Barbara Mattson
All material on this site has been created and updated between 1997-2012.

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