J/AcA/50/307 OGLE LMC BVI photometry (Udalski+, 2000)
The optical gravitational lensing experiment. BVI maps of dense stellar regions.
II. The Large Magellanic Cloud.
Udalski A., Szymanski M., Kubiak M., Pietrzynski G., Soszynski I.,
Wozniak P., Zebrun K.
<Acta Astron., 50, 307-335 (2000)>
=2000AcA....50..307U 2000AcA....50..307U
ADC_Keywords: Magellanic Clouds ; Surveys ; Photometry, UBVRI
Keywords: Magellanic Clouds - surveys - catalogs - techniques: photometric
Abstract:
We present the BVI photometric maps of the Large Magellanic Cloud.
They contain BVI photometry and astrometry of more than 7 million
stars from the central parts of the LMC. The data were collected
during the second phase of the OGLE microlensing project. We discuss
the accuracy of the data and present color-magnitude diagrams of all
26 fields observed by OGLE in the LMC. The BVI maps of the LMC are
accessible electronically for the astronomical community from the OGLE
Internet archive.
Description:
All observations presented in this paper were collected during the
second phase of the OGLEmicrolensing search with the 1.3-mWarsaw
telescope at the Las Campanas Observatory, Chile, which is operated
by the Carnegie Institution of Washington.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
fields.dat 57 26 List of LMC SC fields
phot/* . 26 Field photometry
fits/* . 26 FITS images of the 26 fields
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See also:
J/AcA/48/147 : OGLE SMC BVI photometry (Udalski+ 1998)
J/AcA/49/223 : BVI photometry of OGLE LMC Cepheids (Udalski+, 1999)
J/AcA/49/521 : OGLE LMC star clusters BVI photometry (Pietrzynski+, 1999)
J/AcA/49/543 : OGLE LMC + SMC Cepheids VI photometry (Pietrzynski+, 1999)
J/AcA/50/337 : OGLE LMC star clusters (Pietrzynski+, 2000)
J/AcA/50/355 : OGLE Multiple Cluster Candidates in LMC (Pietrzynski+, 2000)
J/AcA/52/143 : OGLE high proper motion stars towards MC (Soszynski+, 2002)
J/AcA/53/1 : OGLE eclipsing binaries in LMC (Wyrzykowski+, 2003)
J/AcA/53/93 : OGLE RR Lyrae in LMC (Soszynski+, 2003)
J/MNRAS/353/705 : OGLE Variables in Magellanic Clouds (Ita+, 2004)
Byte-by-byte Description of file: fields.dat
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Bytes Format Units Label Explanations
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1- 6 A6 --- --- [LMC_SC]
7- 8 I2 --- SC [1/26] LMC_SC field number
12 I1 h RAh Right ascension (J2000)
13 A1 --- --- [:]
14- 15 I2 min RAm Right ascension (J2000)
16 A1 --- --- [:]
17- 18 I2 s RAs Right ascension (J2000)
22 A1 --- DE- Declination sign (J2000)
23- 24 I2 deg DEd Declination (J2000)
25 A1 --- --- [:]
26- 27 I2 arcmin DEm Declination (J2000)
28 A1 --- --- [:]
29- 30 I2 arcsec DEs Declination (J2000)
33- 44 A12 --- FileName Name of the file with VBI photometry in
subdirectory phot
46- 57 A12 --- FITSfile Name of FITS image file in "fits" subdirectory
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Byte-by-byte Description of file: phot/*
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Bytes Format Units Label Explanations
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1- 6 I6 --- Seq [1/485565] Sequential number in SC zone (1)
8- 9 I2 h RAh Right ascension (J2000)
10 A1 --- --- [:]
11- 12 I2 min RAm Right ascension (J2000)
13 A1 --- --- [:]
14- 18 F5.2 s RAs Right ascension (J2000)
20 A1 --- DE- Declination sign (J2000)
21- 22 I2 deg DEd Declination (J2000)
23 A1 --- --- [:]
24- 25 I2 arcmin DEm Declination (J2000)
26 A1 --- --- [:]
27- 30 F4.1 arcsec DEs Declination (J2000)
32- 38 F7.2 pix Xpos X position in the I-band template image
40- 46 F7.2 pix Ypos Y position in the I-band template image
48- 53 F6.3 mag Vmag ?=99.999 V magnitude
55- 60 F6.3 mag B-V ?=9.999 B-V colour index
62- 67 F6.3 mag V-I ?=9.999 V-I colour index
69- 74 F6.3 mag Bmag ?=99.999 B magnitude
76- 81 F6.3 mag Imag ?=99.999 I magnitude
83- 85 I3 --- Vdat Number of "good" measurements in V band
87- 88 I2 --- Vbad Number of "bad" measurements in V band (2)
90- 94 F5.3 mag e_Vmag ?=9.999 rms uncertainty on Vmag
97- 98 I2 --- Bdat Number of "good" measurements in B band
99-101 I3 --- Bbad Number of "bad" measurements in B band (2)
103-107 F5.3 mag e_Bmag ?=9.999 rms uncertainty on Bmag
109-111 I3 --- Idat Number of "good" measurements in I band
113-114 I2 --- Ibad Number of "bad" measurements in I band (2)
116-120 F5.3 mag e_Imag rms uncertainty on Imag
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Note (1): Star identified as OGLE LMC-SCNN NNNNNN in Simbad
Note (2): removed with 5 σ rejection algorithm
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History:
Copied at ftp://sirius.astrouw.edu.pl/ogle/ogle2/maps/lmc/
(End) Patricia Vannier [CDS] 16-Mar-2009