CCD BV and 2MASS photometric study of the open cluster NGC 1513

Author(s)
Selcuk Bilir, Tolga Guver, Irek M. Khamitov, Tansel Ak, Serap Ak, Ernst Paunzen, K.B. Coşkunoğlu, E. Yaz
Abstract

We present CCD BV and JHK s 2MASS photometric data for the open cluster NGC 1513. We observed 609 stars in the direction of the cluster up to a limiting magnitude of V∼19 mag. The star-count method showed that the centre of the cluster lies at α 2000=04h09m36s, δ 2000=49°28′43″ and its angular size is r=10 arcmin. The optical and near-infrared two-colour diagrams revealed the colour excesses in the direction of the cluster as E(B−V)=0.68±0.06, E(J−H)=0.21±0.02 and E(J−K s )=0.33±0.04 mag. These results are consistent with normal interstellar extinction values. Optical and near-infrared Zero Age Main-Sequences (ZAMS) provided an average distance modulus of (m−M)0=10.80±0.13 mag, which can be translated into a distance of 1440±80 pc. Finally, using Padova isochrones we determined the metallicity and age of the cluster as Z=0.015±0.004 ([M/H]=−0.10±0.10 dex) and log (t/yr)=8.40±0.04, respectively.

Organisation(s)
Department of Astrophysics
External organisation(s)
Istanbul University, University of Arizona, TUBITAK National Observatory
Journal
Astrophysics and Space Science
Volume
326
Pages
139-150
No. of pages
12
ISSN
0004-640X
DOI
https://doi.org/10.1007/s10509-009-0233-1
Publication date
03-2010
Peer reviewed
Yes
Austrian Fields of Science 2012
1030 Physics, Astronomy
Portal url
https://ucrisportal.univie.ac.at/en/publications/ce7600d2-43be-4863-96cb-079e0ec84d58