Preliminary stellar photographic photometry in the Sculptor Dwarf Irregular Galaxy /SDIG/

Astronomy and Astrophysics – Astrophysics

Scientific paper

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Galactic Structure, Spectrophotography, Stellar Spectrophotometry, Electronography, Stellar Evolution, Stellar Luminosity

Scientific paper

Preliminary electronographic V photometry is given for individual stars in the Sculptor Dwarf Irregular Galaxy (SDIG), in the Sculptor group of galaxies. These are the first such data available for a galaxy outside the Local Group. The brightest star has an absolute V magnitude of -6.3. The lack of brighter stars which are present in bigger galaxies is not statistically significant. The luminosity function is similar to that in the irregular galaxies IC 1613 and NGC 6822 and, like these objects, SDIG appears to be in a relatively quiescent stage of star formation.

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