On the stellar content and structure of the spiral Galaxy M33

Details On the stellar content and structure of the spiral Galaxy M33 On the stellar content and structure of the spiral Galaxy M33

Nov 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980apjs...44..319h&link_type=abstract

Astrophysical Journal Supplement Series, vol. 44, Nov. 1980, p. 319-381.

Astronomy and Astrophysics

Astrophysics

212

Galactic Structure, Spiral Galaxies, Star Distribution, Stellar Luminosity, Astronomical Maps, Astronomical Photography, Astronomical Photometry, Brightness, Cosmic Dust, Density Wave Model, Early Stars, Galactic Evolution, H Ii Regions, Stellar Magnitude, Supergiant Stars, Tables (Data)

Scientific paper

A blink survey for blue and red stars over the face of M33 has isolated candidates for the brightest member stars. Spectroscopy has isolated the brightest members from the foreground stars. The CM diagrams are displayed for stars inside and outside the 143 associations that have been identified. The spiral pattern of M33 is outlined using the associations, H II regions, dust, and the surface brightness of young unresolved stars. Individual CM diagrams are presented for six associations at various distances from the center. The data on the structure of spiral arms in M33 may provide evidence in support of density-wave arms (the two innermost arms) and material arms in the outer parts.

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