Sigma-D relation explained

The Sigma-D relation, or Σ-D Relation, is the claimed relation between the radio surface brightness and diameter of a supernova remnant. It is generally regarded as of limited physical use, since it has very large scatter and is dominated by observational selection biases.[1] [2]

Notes and References

  1. Green . D. A. . 1991-02-01 . Limitations Imposed on Statistical Studies of Galactic Supernova Remnants by Observational Selection Effects . Publications of the Astronomical Society of the Pacific . 103 . 209 . 10.1086/132810. 1991PASP..103..209G .
  2. Green . D. A. . 2005-01-01 . Some statistics of Galactic SNRs . Memorie della Societa Astronomica Italiana . 76 . 534–541 . astro-ph/0505428. 2005MmSAI..76..534G .

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