CCD UBV photometry and kinematics of the open cluster NGC 225

J 2016

CCD UBV photometry and kinematics of the open cluster NGC 225

BILIR, Selcuk, Funda BOSTANCI, Talar YONTAN, Tolga GUVER, Volkan BAKIS et. al.

Basic information

Original name

CCD UBV photometry and kinematics of the open cluster NGC 225

Authors

BILIR, Selcuk (792 Turkey), Funda BOSTANCI (792 Turkey), Talar YONTAN (792 Turkey), Tolga GUVER (792 Turkey), Volkan BAKIS (792 Turkey), Tansel AK (792 Turkey), Serap AK (792 Turkey), Ernst PAUNZEN (40 Austria, guarantor, belonging to the institution) and Zeki EKER (792 Turkey)

Edition

Advances in Space Research, OXFORD, Elsevier, 2016, 0273-1177

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

10308 Astronomy

Country of publisher

United Kingdom of Great Britain and Northern Ireland

Confidentiality degree

není předmětem státního či obchodního tajemství

Impact factor

Impact factor: 1.401

RIV identification code

RIV/00216224:14310/16:00091577

Organization unit

Faculty of Science

DOI

http://dx.doi.org/10.1016/j.asr.2016.06.039

UT WoS

000385473800027

Keywords in English

Galaxy; Open cluster and associations; Individual; NGC 225; Stars; Hertzsprung Russell (HR) diagram

Abstract

V originále

We present the results of CCD UBV photometric and spectroscopic observations of the open cluster NGC 225. In order to determine the structural parameters of NGC 225, we calculated the stellar density profile in the cluster's field. We estimated the probabilities of the stars being physical members of the cluster using the existing astrometric data. The most likely members of the cluster were used in the determination of the astrophysical parameters of the cluster. We calculated the mean radial velocity of the cluster as V-r = 8.3 +/- 5.0 km s(-1) from the optical spectra of eight stars in the cluster's field. Using the mml : mrow > U - B vs B - V two-colour diagram and UV excesses of the F-G type main-sequence stars, the reddening and metallicity of NGC 225 were inferred as E(B - V) = 0.151 +/- 0.047 mag and [Fe/H] = -0.11 +/- 0.01 dex, respectively. We fitted the colour-magnitude diagrams of NGC 225 with the PARSEC isochrones and derived the distance modulus, distance and age of the cluster as mu(V) = 9.3 +/- 0.07 mag, d = 585 +/- 20 pc and t = 900 +/- 100 Myr, respectively. We also estimated the galactic orbital parameters and space velocity components of the cluster and found that the cluster has a slightly eccentric orbit of e = 0.07 +/- 0.01 and an orbital period of P-orb = 255 +/- 5 Myr. (C) 2016 COSPAR. Published by Elsevier Ltd. All rights reserved.

Citovat

BILIR, Selcuk, Funda BOSTANCI, Talar YONTAN, Tolga GUVER, Volkan BAKIS, Tansel AK, Serap AK, Ernst PAUNZEN and Zeki EKER. CCD UBV photometry and kinematics of the open cluster NGC 225. Advances in Space Research. OXFORD: Elsevier, 2016, vol. 58, No 9, p. 1900-1914. ISSN 0273-1177. Available from: https://dx.doi.org/10.1016/j.asr.2016.06.039.

@article{1359735,
   author = {Bilir, Selcuk and Bostanci, Funda and Yontan, Talar and Guver, Tolga and Bakis, Volkan and Ak, Tansel and Ak, Serap and Paunzen, Ernst and Eker, Zeki},
   article_location = {OXFORD},
   article_number = {9},
   doi = {http://dx.doi.org/10.1016/j.asr.2016.06.039},
   keywords = {Galaxy; Open cluster and associations; Individual; NGC 225; Stars; Hertzsprung Russell (HR) diagram},
   language = {eng},
   issn = {0273-1177},
   journal = {Advances in Space Research},
   title = {CCD UBV photometry and kinematics of the open cluster NGC 225},
   volume = {58},
   year = {2016}
}

TY  - JOUR
ID  - 1359735
AU  - Bilir, Selcuk - Bostanci, Funda - Yontan, Talar - Guver, Tolga - Bakis, Volkan - Ak, Tansel - Ak, Serap - Paunzen, Ernst - Eker, Zeki
PY  - 2016
TI  - CCD UBV photometry and kinematics of the open cluster NGC 225
JF  - Advances in Space Research
VL  - 58
IS  - 9
SP  - 1900-1914
EP  - 1900-1914
PB  - Elsevier
SN  - 02731177
KW  - Galaxy
KW  - Open cluster and associations
KW  - Individual
KW  - NGC 225
KW  - Stars
KW  - Hertzsprung Russell (HR) diagram
N2  - We present the results of CCD UBV photometric and spectroscopic observations of the open cluster NGC 225. In order to determine the structural parameters of NGC 225, we calculated the stellar density profile in the cluster's field. We estimated the probabilities of the stars being physical members of the cluster using the existing astrometric data. The most likely members of the cluster were used in the determination of the astrophysical parameters of the cluster. We calculated the mean radial velocity of the cluster as V-r = 8.3 +/- 5.0 km s(-1) from the optical spectra of eight stars in the cluster's field. Using the mml : mrow > U - B vs B - V two-colour diagram and UV excesses of the F-G type main-sequence stars, the reddening and metallicity of NGC 225 were inferred as E(B - V) = 0.151 +/- 0.047 mag and [Fe/H] = -0.11 +/- 0.01 dex, respectively. We fitted the colour-magnitude diagrams of NGC 225 with the PARSEC isochrones and derived the distance modulus, distance and age of the cluster as mu(V) = 9.3 +/- 0.07 mag, d = 585 +/- 20 pc and t = 900 +/- 100 Myr, respectively. We also estimated the galactic orbital parameters and space velocity components of the cluster and found that the cluster has a slightly eccentric orbit of e = 0.07 +/- 0.01 and an orbital period of P-orb = 255 +/- 5 Myr. (C) 2016 COSPAR. Published by Elsevier Ltd. All rights reserved.
ER  -

BILIR, Selcuk, Funda BOSTANCI, Talar YONTAN, Tolga GUVER, Volkan BAKIS, Tansel AK, Serap AK, Ernst PAUNZEN and Zeki EKER. CCD UBV photometry and kinematics of the open cluster NGC 225. \textit{Advances in Space Research}. OXFORD: Elsevier, 2016, vol.~58, No~9, p.~1900-1914. ISSN~0273-1177. Available from: https://dx.doi.org/10.1016/j.asr.2016.06.039.

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