The dwarf galaxy NGC 3109. I - The data

Details The dwarf galaxy NGC 3109. I - The data The dwarf galaxy NGC 3109. I - The data

May 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993aj....105.1779b&link_type=abstract

Astronomical Journal (ISSN 0004-6256), vol. 105, no. 5, p. 1779-1792, 2012.

Astronomy and Astrophysics

Astronomy

33

Astronomical Photometry, Color-Magnitude Diagram, Dwarf Galaxies, Local Group (Astronomy), Luminous Intensity, Star Distribution, B Stars, Blue Stars, Charge Coupled Devices, H Alpha Line, H Ii Regions, Main Sequence Stars, O Stars, Red Giant Stars, Star Formation, Supergiant Stars

Scientific paper

We report on the results of the CCD photometry in the B- and V- band of 8250 stars belonging to the Local Group dwarf irregular galaxy NGC 3109. Color-magnitude diagrams and luminosity functions are constructed. The overall distribution of blue and red supergiants is given. Eighteen OB associations are identified from H-alpha maps, and their color-magnitude diagrams are discussed. A catalog of previously known and newly identified H II regions is presented. The star-forming properties that we infer from these data for NGC 3109 are similar to those of other dwarf galaxies.

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