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Distance estimate of M31 based on the size distribution of Hii regions and dark clouds (1985)

Issa, I. A.

Springer

Astrophysics and space science 113 (1985), S. 317-323

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ISSN: 1572-946X

Source: Springer Online Journal Archives 1860-2000

Topics: Physics

Notes: Abstract The size distribution of dark clouds and of H II regions were used to derive a distance of 440±22 kpc for M31. Some galactic H II regions and dark clouds were combined with the same ingredients in M31 to study the mass spectrum of both phenomena. A gas to dust ratio of 1000∶1 has been derived for M31. Radii of the classical H II regions as derived in this work using distance of 440 kpc agrees with the galactic classical H II region radii.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1007/BF00650966

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