J/MNRAS/453/1095 NGC 6866 UBVRI photometry (Bostanci+, 2015)
A comprehensive study of the open cluster NGC 6866.
Bostanci Z.F., Ak T., Yontan T., Bilir S., Guver T., Ak S., Cakirli O.,
Ozdarcan O., Paunzen E., De Cat P., Fu J.N., Zhang Y., Hou Y., Li G.,
Wang Y., Zhang W., Shi J., Wu Y.
<Mon. Not. R. Astron. Soc., 453, 1095-1107 (2015)>
=2015MNRAS.453.1095B 2015MNRAS.453.1095B (SIMBAD/NED BibCode)
ADC_Keywords: Clusters, open ; Photometry, CCD ; Photometry, UBVRI ;
Proper motions
Keywords: Hertzsprung-Russell and colour-magnitude diagrams -
open clusters and associations: individual: NGC 6866
Abstract:
We present CCD UBVRI photometry of the field of the open cluster NGC
6866. Structural parameters of the cluster are determined utilizing
the stellar density profile of the stars in the field. We calculate
the probabilities of the stars being physical members of the cluster,
using their astrometric data, and perform further analyses using only
the most probable members. The reddening and metallicity of the
cluster were determined by independent methods. The LAMOST spectra and
the ultraviolet excess of the F- and G-type main-sequence stars in the
cluster indicate that the metallicity of the cluster is about the
solar value. We estimated the reddening E(B-V)=0.074±0.050mag using
the U-B versus B-V two-colour diagram. The distance modula, the
distance and the age of NGC 6866 were derived as µ=10.60±0.10mag,
d=1189±75pc and t=813±50Myr, respectively, by fitting
colour-magnitude diagrams of the cluster with the PARSEC isochrones.
The Galactic orbit of NGC 6866 indicates that the cluster is orbiting
in a slightly eccentric orbit with e=0.12. The mass function slope
x=1.35±0.08 was derived by using the most probable members of the
cluster.
Description:
CCD UBVRI images of the open cluster NGC 6866 and standard stars
selected from Landolt (2009, Cat. J/AJ/137/4186) were acquired on 2012
July 18 using a 1-m Ritchey-Chretien telescope (T100) located at the
TUBITAK National Observatory (TUG) in Bakirlitepe, Antalya/Turkey.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table4.dat 119 2089 Photometric and astrometric catalogue for the
open cluster NGC 6866
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See also:
J/AcA/59/193 : BV photometry of stars in NGC 6866 (Molenda-Zakowicz+, 2009)
J/PAZh/36/354 : NGC 6866 proper motions and CCD photometry (Frolov+, 2010)
J/MNRAS/419/2379 : NGC 6866 variables V and I light curves (Joshi+, 2012)
J/MNRAS/429/1466 : Kepler stars in the NGC 6866 field (Balona+, 2013)
J/AJ/147/139 : UBVRI CCD photometry of NGC 6866 (Janes+, 2014)
Byte-by-byte Description of file: table4.dat
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Bytes Format Units Label Explanations
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1- 4 I4 --- ID Sequential number
6- 7 I2 h RAh Right ascension (J2000)
9- 10 I2 min RAm Right ascension (J2000)
12- 16 F5.2 s RAs Right ascension (J2000)
18 A1 --- DE- Declination sign (J2000)
19- 20 I2 deg DEd Declination (J2000)
22- 23 I2 arcmin DEm Declination (J2000)
25- 29 F5.2 arcsec DEs Declination (J2000)
31- 36 F6.3 mag Vmag Johnson V magnitude
38- 42 F5.3 mag e_Vmag rms uncertainty on Vmag
44- 49 F6.3 mag U-B Johnson U-B colour index
51- 55 F5.3 mag e_U-B rms uncertainty on U-B
57- 61 F5.3 mag B-V Johnson B-V colour index
63- 67 F5.3 mag e_B-V rms uncertainty on B-V
69- 73 F5.3 mag V-R Johnson-Cousins V-R colour index
75- 79 F5.3 mag e_V-R rms uncertainty on V-R
81- 85 F5.3 mag R-I Johnson-Cousins R-I colour index
87- 91 F5.3 mag e_R-I rms uncertainty on R-I
93- 97 F5.1 mas/yr pmRA ? Proper motion along RA (pmRA*cosDE)
99-102 F4.1 mas/yr e_pmRA ? rms uncertainty on pmRA
104-109 F6.1 mas/yr pmDE ? Proper motion along DE
111-114 F4.1 mas/yr e_pmDE ? rms uncertainty on pmDE
117-119 I3 % Pmemb ? Membership probability
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History:
From electronic version of the journal
(End) Patricia Vannier [CDS] 17-Mar-2016