CCD UBVRI photometry of NGC 6811

J 2015

CCD UBVRI photometry of NGC 6811

YONTAN, T., S. BILIR, Z.F. BOSTANCI, T. AK, S. KARAALI et. al.

Basic information

Original name

CCD UBVRI photometry of NGC 6811

Authors

YONTAN, T. (792 Turkey), S. BILIR (792 Turkey), Z.F. BOSTANCI (792 Turkey), T. AK (792 Turkey), S. KARAALI (792 Turkey), T. GUVER (792 Turkey), S. AK (792 Turkey), S. DURAN (792 Turkey) and Ernst PAUNZEN (40 Austria, belonging to the institution)

Edition

Astrophysics and Space Science, DORDRECHT, Springer, 2015, 0004-640X

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

10308 Astronomy

Country of publisher

Netherlands

Confidentiality degree

není předmětem státního či obchodního tajemství

Impact factor

Impact factor: 1.678

RIV identification code

RIV/00216224:14310/15:00080725

Organization unit

Faculty of Science

DOI

http://dx.doi.org/10.1007/s10509-014-2175-5

UT WoS

000350206600008

Keywords in English

Galaxy: open cluster and associations: individual: NGC 6811; Stars: Hertzsprung Russell (HR) diagram

Abstract

V originále

We present the results of CCD UBVRI observations of the open cluster NGC 6811 obtained on 18th July 2012 with the 1 m telescope at the TUBITAK National Observatory (TUG). Using these photometric results, we determine the structural and astrophysical parameters of the cluster. The mean photometric uncertainties are better than 0.02 mag in the V magnitude and B - V, V - R, and V - I colour indices to about 0.03 mag for U - B among stars brighter than magnitude V = 18. Cluster member stars were separated from the field stars using the Galaxia model of Sharma et al. (2011) together with other techniques. The core radius of the cluster is found to be r(c) = 3.60 arcmin. The astrophysical parameters were determined simultaneously via Bayesian statistics using the colour-magnitude diagrams V versus B - V, V versus V - I, V versus V - R, and V versus R - I of the cluster. The resulting most likely parameters were further confirmed using independent methods, removing any possible degeneracies. The colour excess, distance modulus, metallicity and the age of the cluster are determined simultaneously as E(B-V) = 0.05 +/- 0.01 mag, mu = 10.06 +/- 0.08 mag, [M/H] = -0.10 +/- 0.01 dex and t = 1.00 +/- 0.05 Gyr, respectively. Distances of five red clump stars which were found to be members of the cluster further confirm our distance estimation.

Links

GP14-26115P, research and development project

Name: Vstříc k jednotné škále metalicity pro otevřené hvězdokupy

Investor: Czech Science Foundation

3SGA5916, interní kód MU

Name: Hvězdy a hvězdokupy v Magellanových mračnech (Acronym: Webda MaC)

Investor: South-Moravian Region, Incoming grants

7AMB14AT015, research and development project

Name: Nový pohled na magnetické hvězdy (Acronym: MAGSTARS)

Investor: Ministry of Education, Youth and Sports of the CR

Citovat

YONTAN, T., S. BILIR, Z.F. BOSTANCI, T. AK, S. KARAALI, T. GUVER, S. AK, S. DURAN and Ernst PAUNZEN. CCD UBVRI photometry of NGC 6811. Astrophysics and Space Science. DORDRECHT: Springer, 2015, vol. 355, No 2, p. 267-281. ISSN 0004-640X. Available from: https://dx.doi.org/10.1007/s10509-014-2175-5.

@article{1231952,
   author = {Yontan, T. and Bilir, S. and Bostanci, Z.F. and Ak, T. and Karaali, S. and Guver, T. and Ak, S. and Duran, S. and Paunzen, Ernst},
   article_location = {DORDRECHT},
   article_number = {2},
   doi = {http://dx.doi.org/10.1007/s10509-014-2175-5},
   keywords = {Galaxy: open cluster and associations: individual: NGC 6811; Stars: Hertzsprung Russell (HR) diagram},
   language = {eng},
   issn = {0004-640X},
   journal = {Astrophysics and Space Science},
   title = {CCD UBVRI photometry of NGC 6811},
   volume = {355},
   year = {2015}
}

TY  - JOUR
ID  - 1231952
AU  - Yontan, T. - Bilir, S. - Bostanci, Z.F. - Ak, T. - Karaali, S. - Guver, T. - Ak, S. - Duran, S. - Paunzen, Ernst
PY  - 2015
TI  - CCD UBVRI photometry of NGC 6811
JF  - Astrophysics and Space Science
VL  - 355
IS  - 2
SP  - 267-281
EP  - 267-281
PB  - Springer
SN  - 0004640X
KW  - Galaxy: open cluster and associations: individual: NGC 6811
KW  - Stars: Hertzsprung Russell (HR) diagram
N2  - We present the results of CCD UBVRI observations of the open cluster NGC 6811 obtained on 18th July 2012 with the 1 m telescope at the TUBITAK National Observatory (TUG). Using these photometric results, we determine the structural and astrophysical parameters of the cluster. The mean photometric uncertainties are better than 0.02 mag in the V magnitude and B - V, V - R, and V - I colour indices to about 0.03 mag for U - B among stars brighter than magnitude V = 18. Cluster member stars were separated from the field stars using the Galaxia model of Sharma et al. (2011) together with other techniques. The core radius of the cluster is found to be r(c) = 3.60 arcmin. The astrophysical parameters were determined simultaneously via Bayesian statistics using the colour-magnitude diagrams V versus B - V, V versus V - I, V versus V - R, and V versus R - I of the cluster. The resulting most likely parameters were further confirmed using independent methods, removing any possible degeneracies. The colour excess, distance modulus, metallicity and the age of the cluster are determined simultaneously as E(B-V) = 0.05 +/- 0.01 mag, mu = 10.06 +/- 0.08 mag, [M/H] = -0.10 +/- 0.01 dex and t = 1.00 +/- 0.05 Gyr, respectively. Distances of five red clump stars which were found to be members of the cluster further confirm our distance estimation.
ER  -

YONTAN, T., S. BILIR, Z.F. BOSTANCI, T. AK, S. KARAALI, T. GUVER, S. AK, S. DURAN and Ernst PAUNZEN. CCD UBVRI photometry of NGC 6811. \textit{Astrophysics and Space Science}. DORDRECHT: Springer, 2015, vol.~355, No~2, p.~267-281. ISSN~0004-640X. Available from: https://dx.doi.org/10.1007/s10509-014-2175-5.

Detailed Information on Publication Record