J/A+A/484/609 BVI photometry and proper motions in M67 (Yadav+, 2008)
Ground-based CCD astrometry with wide field imagers.
II. A star catalog for M67: WFI@2.2m MPG/ESO astrometry, FLAMES@VLT radial
velocities.
Yadav R.K.S., Bedin L.R., Piotto G., Anderson J., Cassisi S., Villanova S.,
Platais I., Pasquini L., Momany Y., Sagar R.
<Astron. Astrophys. 484, 609 (2008)>
=2008A&A...484..609Y 2008A&A...484..609Y
ADC_Keywords: Clusters, open ; Photometry, UBVRI ; Proper motions ;
Radial velocities
Keywords: Galaxy: open clusters and associations: individual: M 67 -
astrometry - catalogs
Abstract:
The solar-age open cluster M 67 (C0847+ 120, NGC 2682) is a touchstone
in studies of the old Galactic disk. Despite its outstanding role, the
census of cluster membership for M 67 at fainter magnitudes and their
properties are not well-established.
Using proprietary and archival ESO data, we have obtained astrometric,
photometric, and radial velocities of stars in a 34x33arcmin2 field
centered on the old open cluster M 67.
The two-epoch archival observations separated by 4-years and acquired
with the Wide-Field Imager at the 2.2m MPG/ ESO telescope were reduced
with our new astrometric techniques, as described in the first paper
in this series (Anderson et al., 2006A&A...454.1029A 2006A&A...454.1029A). The same
observations served to derive calibrated BVI photometry in M 67.
Radial velocities were measured using the archival and new
spectroscopic data obtained at the VLT.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
catalog.dat 131 2410 M67 catalog
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See also:
II/123 : UBV Photometry of Faint Stars (V>14.5) in M67 (Frolov+ 1986)
V/52 : Photometry and Proper Motions in M67 (Frolov+ 1986)
J/A+AS/100/243 : Proper motions in M 67 (Zhao+ 1993)
J/AJ/106/181 : CCD photometry of open cluster M67 (Montgomery+ 1993)
J/AJ/112/628 : BATC Color Survey of M67 (Fan+ 1996)
J/BaltA/7/369 : M67 CCD photometry (Boyle+, 1998)
J/A+A/382/899 : BVI photometry in M67 (Stassun+, 2002)
J/A+A/418/509 : Chandra observation of M67 (Van Den Berg+, 2004)
J/BaltA/13/1 : M67 CCD Vilnius photometry (Laugalys+, 2004)
Byte-by-byte Description of file: catalog.dat
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Bytes Format Units Label Explanations
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1- 4 I4 --- Seq Sequential number
6- 15 F10.6 deg RAdeg Right ascension in decimal degrees (J2000)
17- 26 F10.6 deg DEdeg Declination in decimal degrees (J2000)
28- 35 F8.3 pix Xpos X position
37- 44 F8.3 pix Ypos Y position
46- 51 F6.3 mag Bmag ?=99.999 Johnson B magnitude
53- 57 F5.3 mag e_Bmag ?=0.999 rms uncertainty on Bmag
59- 64 F6.3 mag Vmag ?=99.999 Johnson V magnitude
66- 70 F5.3 mag e_Vmag ?=-0.999 rms uncertainty on Vmag
72- 77 F6.3 mag Icmag ?=99.999 Cousins I magnitude
79- 83 F5.3 mag e_Icmag ?=0.999 rms uncertainty on Icmag
85- 91 F7.2 mas/yr pmRA Proper motion along RA (pmRA.cosDE)
93- 97 F5.2 mas/yr e_pmRA rms uncertainty on pmRA
99-105 F7.2 mas/yr pmDE Proper motion along declination, pmDE
107-111 F5.2 mas/yr e_pmDE rms uncertainty on pmDE
113-115 I3 --- Pmb Proper-motion membership probability
117-123 F7.3 km/s HRV ?=999.999 Heliocentric radial velocity
125-131 F7.3 km/s e_HRV ?=999.999 rms uncertainty on HRV
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Acknowledgements:
Luigi Bedin, bedin(at)stsci.edu
References:
Anderson et al., Paper I 2006A&A...454.1029A 2006A&A...454.1029A
(End) Patricia Vannier [CDS] 01-Apr-2008