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.

Základní údaje

Originální název

CCD UBVRI photometry of NGC 6811

Autoři

YONTAN, T. (792 Turecko), S. BILIR (792 Turecko), Z.F. BOSTANCI (792 Turecko), T. AK (792 Turecko), S. KARAALI (792 Turecko), T. GUVER (792 Turecko), S. AK (792 Turecko), S. DURAN (792 Turecko) a Ernst PAUNZEN (40 Rakousko, domácí)

Vydání

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

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

10308 Astronomy

Stát vydavatele

Nizozemské království

Utajení

není předmětem státního či obchodního tajemství

Impakt faktor

Impact factor: 1.678

Kód RIV

RIV/00216224:14310/15:00080725

Organizační jednotka

Přírodovědecká fakulta

DOI

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

UT WoS

000350206600008

Klíčová slova anglicky

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

Štítky

AKR, rivok

Změněno: 29. 3. 2016 15:12, Ing. Andrea Mikešková

Anotace

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.

Návaznosti

GP14-26115P, projekt VaV

Název: Vstříc k jednotné škále metalicity pro otevřené hvězdokupy

Investor: Grantová agentura ČR, Vstříc k jednotné škále metalicity pro otevřené hvězdokupy

3SGA5916, interní kód MU

Název: Hvězdy a hvězdokupy v Magellanových mračnech (Akronym: Webda MaC)

Investor: Jihomoravský kraj, Hvězdy a hvězdokupy v Magellanových mračnech, Granty pro zahraniční vědce

7AMB14AT015, projekt VaV

Název: Nový pohled na magnetické hvězdy (Akronym: MAGSTARS)

Investor: Ministerstvo školství, mládeže a tělovýchovy ČR, Nový pohled na magnetické hvězdy

Citovat

YONTAN, T., S. BILIR, Z.F. BOSTANCI, T. AK, S. KARAALI, T. GUVER, S. AK, S. DURAN a Ernst PAUNZEN. CCD UBVRI photometry of NGC 6811. Astrophysics and Space Science. DORDRECHT: Springer, 2015, roč. 355, č. 2, s. 267-281. ISSN 0004-640X. Dostupné z: 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 a Ernst PAUNZEN. CCD UBVRI photometry of NGC 6811. \textit{Astrophysics and Space Science}. DORDRECHT: Springer, 2015, roč.~355, č.~2, s.~267-281. ISSN~0004-640X. Dostupné z: https://dx.doi.org/10.1007/s10509-014-2175-5.

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