CCD uvby-beta photometry of young open clusters. I. The double cluster h and chi Persei

Abstract

We present CCD uvby-beta photometry for stars in the nuclei of the young double cluster h and chi Persei. We find that the reddening is highly variable through the h Persei nucleus, increasing from west to east, with values ranging from E(b-y)=0.328+-0.022 in the western part to E(b-y)=0.465+-0.025 in the south-east. Towards chi Persei the reddening is fairly constant, with E(b-y)=0.398+-0.025. Both clusters share a common distance modulus of 11.7+-0.1 mag., and an age of log t=7.10+-0.05 years.

10 pages, 11 figures, submitted to Astronomy and Astrophysics. Tables 6 and 7 can be found in electronic form at http://pleione.uv.es/recent.html

References in corpus (3)

• The Star Formation History and Mass Function of the Double Cluster h and Chi Persei
• UBVI and Ha Photometry of the h & chi Persei cluster
• Photometric study of the double cluster h and chi Persei

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