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Title:
Photometry of dissolving star cluster candidates. The cases of NGC 7036 and NGC 7772
Authors:
Carraro, G.
Affiliation:
AA(Dipartimento di Astronomia, Universitàdi Padova, Vicolo Osservatorio 2, 35122 Padova, Italy)
Publication:
Astronomy and Astrophysics, v.385, p.471-478 (2002) (A&A Homepage)
Publication Date:
04/2002
Origin:
A&A
A&A Keywords:
OPEN CLUSTERS AND ASSOCIATIONS: INDIVIDUAL: NGC 7036, NGC 7772, OPEN CLUSTERS AND ASSOCIATIONS: GENERAL
DOI:
10.1051/0004-6361:20020165
Bibliographic Code:
2002A&A...385..471C

Abstract

We present CCD UBVI observations obtained in the field of the two previously unstudied dissolving open cluster candidates NGC 7036 and NGC 7772. Our analysis suggests that both the objects are Open Cluster Remnants (OCR). NGC 7036 is an open cluster remnant with a core radius of about 3-4 arcmin. We derive for the first time estimates of its fundamental parameters. We identify 17 likely members that define a group of stars at 1 kpc from the Sun, with a low reddening E(B-V) ~ 0.1, and with an age of about 3-4 Gyr. As for NGC 7772, we identify 14 likely members, that define a group of stars with a very low reddening (E(B-V) ~ 0.03), are 1.5 Gyr old and are located about 1.5 kpc from the Sun. Based on observations carried out at Mt Ekar, Asiago, Italy. Photometry is only available in electronic form at the CDS via anonymous ftp to cdsarc.u-strasbg.fr (130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/385/471

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