J/BaltA/13/1 M67 CCD Vilnius photometry (Laugalys+, 2004)
CCD photometry of the M 67 cluster in the Vilnius system.
II. New photometry of high accuracy.
Laugalys V., Kazlauskas A., Boyle R.P., Vrba F.J., Philip A.G.D.,
Straizys V.
<Baltic Astronomy, 13, 1-33 (2004)>
=2004BaltA..13....1L 2004BaltA..13....1L
ADC_Keywords: Clusters, open ; Photometry, Vilnius ; Photometry, CCD
Keywords: stars, fundamental parameters - clusters: individual: M 67 -
methods: observational, data analysis, photometric -
Vilnius photometric system
Abstract:
Seven color CCD photometry in the Vilnius system, supplemented by the
Cousins I passband, has been obtained for 412 stars down to V=16mag in
the M67 open cluster area. A special method of flat-fielding, giving
high accuracy photometry, was used. Photometric spectral types and
interstellar reddenings of all stars were determined. The mean mean
reddening of the cluster stars is E(B-V)=0.04mag and the distance is
770pc.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table2.dat 105 54 Photoelectric standards in M 67
table4.dat 84 412 The results of CCD photometry of M 67
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See also:
II/123 : M67 UBV Photometry of Faint Stars (V>14.5) (Frolov+ 1986)
J/AJ/106/181 : CCD photometry of open cluster M67 (Montgomery+ 1993)
J/A+AS/100/243 : Proper motions in M 67 (Zhao+ 1993)
J/AJ/112/628 : BATC Color Survey of M67 (Fan+ 1996)
J/BaltA/7/369 : M67 CCD photometry (Boyle+, 1998)
J/A+A/418/509 : Chandra observation of M67 (Van Den Berg+, 2004)
Byte-by-byte Description of file: table2.dat
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Bytes Format Units Label Explanations
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1- 3 I3 --- LKB ?=- Sequential number,
Cl* NGC 2682 LKB NNN in Simbad
5- 7 I3 --- Fag ?=- Fagerholm (1906ArMAF...2s...1F 1906ArMAF...2s...1F) number
9- 12 I4 --- MMJ ?=- Montgomery et al. (1993AJ....106..181M 1993AJ....106..181M)
number, CL* NGC 2682 MMJ NNNN in Simbad
14- 17 I4 --- Sand Sanders (1977A&AS...27...89S 1977A&AS...27...89S) number,
Cl* NGC 2682 Sand NNNN in Simbad
19- 24 F6.3 mag Vmag Vilnius V magnitude
26- 30 F5.3 mag U-V Vilnius U-V colour index
32- 36 F5.3 mag P-V Vilnius P-V colour index
38- 42 F5.3 mag X-V Vilnius X-V colour index
43 A1 --- n_X-V [*] Note on X-V (1)
45- 49 F5.3 mag Y-V Vilnius Y-V colour index
51- 55 F5.3 mag Z-V Vilnius Z-V colour index
57- 61 F5.3 mag V-S Vilnius V-S colour index
63 I1 --- Nobs Number of independent measurements
65- 69 F5.3 mag e_Vmag rms uncertainty on Vmag (2)
71- 75 F5.3 mag e_U-V rms uncertainty on U-V (2)
77- 81 F5.3 mag e_P-V rms uncertainty on P-V (2)
83- 87 F5.3 mag e_X-V rms uncertainty on X-V (2)
89- 93 F5.3 mag e_Y-V rms uncertainty on Y-V (2)
95- 99 F5.3 mag e_Z-V rms uncertainty on Z-V (2)
101-105 F5.3 mag e_V-S rms uncertainty on V-Z (2)
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Note (1): *: data been obtained only for the 2000 run;
these values were not used in CCD reductions.
Note (2): Transformation accuracy as:
Vmag = 0.013
U-V = 0.013
P-V = 0.010
X-V = 0.010
X-V = 0.004
Z-V = 0.005
V-Z = 0.006
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Byte-by-byte Description of file: table4.dat
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Bytes Format Units Label Explanations
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1- 3 I3 --- LKB Sequential number as given in Figures 4 and 5,
Cl* NGC 2682 LKB NNN
5 I1 h RAh Right ascension (J2000)
7- 8 I2 min RAm Right ascension (J2000)
10- 13 F4.1 s RAs Right ascension (J2000)
15 A1 --- DE- Declination sign (J2000)
16- 17 I2 deg DEd Declination (J2000)
19- 20 I2 arcmin DEm Declination (J2000)
22- 23 I2 arcsec DEs Declination (J2000)
25- 30 F6.3 mag Vmag Vilnius V magnitude
32- 36 F5.3 mag U-V ?=- Vilnius U-V colour index
38- 42 F5.3 mag P-V Vilnius P-V colour index
44- 48 F5.3 mag X-V ?=- Vilnius X-V colour index
50- 54 F5.3 mag Y-V Vilnius Y-V colour index
56- 60 F5.3 mag Z-V Vilnius Z-V colour index
62- 66 F5.3 mag V-S Vilnius V-S colour index
68- 73 F6.3 mag V-Ic Vilnius-Cousins V-Ic colour index
75- 84 A10 --- SpType Photometric spectral type
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History:
Prepared via OCR at CDS.
References:
Boyle et al., Paper I 1992A&AS...95...51B 1992A&AS...95...51Bb
(End) Patricia Vannier [CDS] 23-Mar-2007