A stellar content survey of NGC 2403 and M81

Journal Article · Mon Jul 01 04:00:00 EDT 1991 · Astronomical Journal; (United States)

DOI:https://doi.org/10.1086/115860· OSTI ID:5192941

Zickgraf, F -J; Humphreys, R M ^[1]

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1. Minnesota, University, Minneapolis (USA)

Results are presented of a stellar content survey of two spiral galaxies, NGC 2403 and M81, conducted on the basis of photographic plates in Johnson UBVR and Cousins-Kron R(ck), obtained with the prime focus camera on the 4-m telescope at the Kitt Peak National Observatory. It was found that there are no significant differences in the slopes of the luminosity functions of the two galaxies, in agreement with previous results for M31 (SbI-II) and M33 (ScIII) and confirming the proposed similarity of the slopes of the luminosity functions among Sb- and Sc-type galaxies. These results and the properties of the brightest stars in the NGC and M81 indicate that the stellar populations in the two galaxies are similar. 35 refs.

• OSTI ID: 5192941
• Journal Information: Astronomical Journal; (United States), Journal Name: Astronomical Journal; (United States) Vol. 102; ISSN 0004-6256; ISSN ANJOA
• Country of Publication: United States
• Language: English

Related Subjects

640105* -- Astrophysics & Cosmology-- Galaxies
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
CONFIGURATION
DISTRIBUTION
GALAXIES
GIANT STARS
LUMINOSITY
OPTICAL PROPERTIES
PHOTOGRAPHY
PHYSICAL PROPERTIES
POPULATIONS
RED GIANT STARS
SPATIAL DISTRIBUTION
SPIRAL CONFIGURATION
STAR EVOLUTION
STARS