ROSAT Guest Observer Facility



Image credit: Max-Planck-Institut für extraterrestrische Physik (MPE)

M83 is a spiral galaxy about 15 million light-years away from the Sun. Similar to our own milkyway galaxy, its arms are clearly seen in the optical light (coloured). Several hitherto unknown X-ray sources are seen in the disk of the galaxy. But the X-ray emission of M83 is dominated by an extended component (contour lines) distributed almost over the whole galaxy, even in the optically bright region. This diffuse emission has its origin in very hot gases raising from the disk as galactic winds or "fountains" and forming an extended galactic halo. This is probably a result of active star forming.

Curator: Michael Arida (ADNET);
HEASARC Guest Observer Facility

Please use the Feedback link if you have questions on ROSAT.

This file was last modified on Tuesday, 25-Aug-2020 18:01:41 EDT

NASA Astrophysics

  • FAQ/Comments/Feedback
  • Education Resources
  • Download Adobe Acrobat
  • A service of the Astrophysics Science Division (ASD) at NASA/ GSFC

    ROSAT Project Scientist: Dr. Robert Petre

    Responsible NASA Official: Dr. Andy Ptak

    Privacy Policy and Important Notices.