• Title/Summary/Keyword: Holmberg II

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BVR PHOTOMETRY OF SUPERGIANT STARS IN HOLMBERG II

  • Sohn Y.J.;Chang S.W.;Kim D.Y.;Kim J.W.;Kim S.H.;Lee J.E.;Lee J.G.;Lee J.M.;Lee M.Y.;Lee S.Y.;Lee U.S.;Park B.K.;Park H.E.
    • Journal of Astronomy and Space Sciences
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    • v.23 no.1
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    • pp.1-10
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    • 2006
  • We report the photometric properties in BVR bands for the resolved bright supergiant stars in the dwarf galaxy Holmberg II. The color-magnitude diagrams and color-color diagram of 374 resolved stars indicate that the majority of the member stars are supergiant stars with a wide range of spectral type between B-K. A comparison with theoretical evolutionary tracks indicates that the supergiant stars in the observed field have progenitor masses between ${\sim}10M_{\bigodot}\;and\;20M_{\bigodot}$. The exponent of luminosity function in V is in good agreement with those of the Small and Large Magellanic Clouds.