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

Autor(en)

Selcuk Bilir, Tolga Guver, Irek M. Khamitov, Tansel Ak, Serap Ak, Ernst Paunzen, K.B. Coşkunoğlu, E. Yaz

Abstrakt

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(en)

Institut für Astrophysik

Externe Organisation(en)

Istanbul University, University of Arizona, TUBITAK National Observatory

Journal

Astrophysics and Space Science

Band

326

Seiten

139-150

Anzahl der Seiten

12

ISSN

0004-640X

DOI

https://doi.org/10.1007/s10509-009-0233-1

Publikationsdatum

03-2010

Peer-reviewed

Ja

ÖFOS 2012

1030 Physik, Astronomie

Link zum Portal

https://ucrisportal.univie.ac.at/de/publications/ce7600d2-43be-4863-96cb-079e0ec84d58