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Pismis 2, a poorly studied, intermediate age open cluster | | L. Di Fabrizio
; A. Bragaglia
; M. Tosi
; G. Marconi
; | | Date: |
21 Aug 2001 | | Journal: | Mon.Not.Roy.Astron.Soc. 328 (2001) 795 | | Subject: | astro-ph | | Affiliation: | 1 and 2), A. Bragaglia , M. Tosi , G. Marconi (3 and 4) ( Oss. Astron. Bologna, Telescopio Nazionale Galileo, Oss. Astron. Roma, ESO | | Abstract: | We present CCD BVI photometry of the intermediate age open cluster Pismis 2, covering from the brighter red giants to about 5 magnitudes below the main sequence turn-off. The cluster is heavily reddened and is possibly affected by a differential reddening of Delta E(B-V) ~= 0.04-0.06. Using the synthetic Colour - Magnitude Diagram method, we estimate in a self-consistent way distance modulus, (n-M)0 ~= 12.5-12.7, and age ~= 1.1-1.2 Gyr. The cluster probably contains a significant fraction of binary systems. The metallicity is most likely solar and the reddening E(B-V) ranges between 1.26 and 1.32 depending on the cluster region. | | Source: | arXiv, astro-ph/0108335 | | Services: | Forum | Review | PDF | Favorites | |
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