ChJAA Vol 2, No 3 (2002) / Ma

Positions and Spectral Energy Distributions of 41 Star Clusters in M33

Jun Ma, Xu Zhou, Jian-Sheng Chen, Hong Wu, Zhao-Ji Jiang, Sui-Jian Xue, Jin Zhu

Abstract

We present accurate positions and multi-color photometry for 41 star clusters detected by Melnick & D'odorico in the nearby spiral galaxy M33 as a part of the BATC Color Survey of the sky in 13 intermediate-band filters from 3800 to 10000 Å. The coordinates of the clusters are found from the HST Guide Star Catalog. By aperture photometry, we obtain the spectral energy distributions of the clusters. Using the relations between the BATC intermediate-band system and UBVRI broadband system, we derive their V magnitudes and Bndash.gif ALT=V colors and find that most of them are blue, which is consistent with previous findings.

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