Concept information
Preferred term
galactic spur
Definition(s)
- One of the largest coherent structures in the radio sky, projecting from the Galactic plane at Galactic longitude l ~ 20° and extending to a very high Galactic latitude b ~ +80°. It was first identified in low frequency radio surveys in the 1950s. The spur is also prominent in soft X-rays. Its origins and nature have long been debated. However, what causes this phenomena is not well understood. It may be due to a combination of OB associations and supernova explosions. (An Etymological Dictionary of Astronomy and Astrophysics, by M. Heydari-Malayeri, https://dictionary.obspm.fr/index.php?formSearchTextfield=North+Polar+Spur&formSubmit=Search&showAll=1)
Broader concept(s)
Synonym(s)
- North Polar Spur
In other languages
-
French
URI
http://data.loterre.fr/ark:/67375/MDL-R9VD23DX-R
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