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Tracing massive stars in the Galaxy
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- Title Tracing massive stars in the Galaxy
- Released 25/06/2007 4:34 pm
- Copyright MPE 2001 (data: NASA COMPTON)
The distribution of massive stars in our Galaxy, which are the likely sources of the observed gamma-rays from the isotope iron-60, is best traced by the radioactivity of aluminium-26 shown in this image from NASA's COMPTON osbervatory. Integral has made detailed observations of aluminium-26's gamma-rays. The emission from iron-60 is too faint for making images with current gamma-ray telescopes.