Orion–Eridanus Superbubble

Orion–Eridanus Superbubble

The Orion–Eridanus Superbubble, or Eridanus Soft X-ray Enhancement is a superbubble in the Orion Nebula. The region is formed from overlapping supernova remnants that may be be associated with the Orion OB1 stellar association; the bubble is approximately 1200 ly across.[1] It is the nearest superbubble to the Local Bubble containing the sun, with the respective shock fronts being about 500 ly apart.[1]

The structure was discovered from 21 cm radio observations by Carl Heiles in the 1970s.[2]

References

  1. ^ a b Aschenbach, B.; Hermann-Michael Hahn, and Joachim Truemper (1998). The invisible sky: ROSAT and the age of X-ray astronomy. Springer. ISBN 9780387949284. 
  2. ^ Sanders, Robert. "Bursting bubbles in the galactic disk appear to be source of hot gas permeating the Milky Way galaxy and its halo". Berkeley. http://berkeley.edu/news/media/releases/99legacy/6-2-1999a.html. 

See also


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