BVR PHOTOMETRY OF SUPERGIANT STARS IN HOLMBERG II

BVR PHOTOMETRY OF SUPERGIANT STARS IN HOLMBERG II

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 typ...

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Bibliographic Details
Main Authors: Y.-J. Sohn, S. W. Chang, D.-Y. Kim, J.-W. Kim, S.-H. Kim, J.-E. Lee, J. G. Lee, J.-M. Lee, M.-Y. Lee, S.-Y. Lee, U.S. Lee, B.-K. Park, H.E. Park, I.-K. Park, W H. Park, H.-S. Yi, J.-Y. Yoon
Format: Article
Language:English
Published: The Korean Space Science Society 2006-03-01
Series:Journal of Astronomy and Space Sciences
Subjects:
Photometry
supergiant stars
dwarf galaxy: Holmberg II
Online Access:http://ocean.kisti.re.kr/downfile/volume/kosss/OJOOBS/2006/v23n1/OJOOBS_2006_v23n1_1.pdf
Description
Summary: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 ~10M_⨀ and 20M_⨀. The exponent of luminosity function in V is in good agreement with those of the Small and Large Magellanic Clouds.
ISSN:2093-5587
2093-1409

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