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


Bilir S. , Guever T. , Khamitov İ., Ak T. , Ak S. , Coskunoglu K. B. , ...Daha Fazla

ASTROPHYSICS AND SPACE SCIENCE, cilt.326, ss.139-150, 2010 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 326 Konu: 1
  • Basım Tarihi: 2010
  • Doi Numarası: 10.1007/s10509-009-0233-1
  • Dergi Adı: ASTROPHYSICS AND SPACE SCIENCE
  • Sayfa Sayıları: ss.139-150

Özet

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 similar to 19 mag. The star-count method showed that the centre of the cluster lies at alpha (2000)=04 (h) 09 (m) 36 (s) , delta (2000)=49A degrees 28(')43(aEuro3) 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.