J/AcA/49/437 BVI photometry of OGLE SMC Cepheids (Udalski+, 1999)
The Optical Gravitational Lensing Experiment. Cepheids in the Magellanic Clouds.
V. Catalog of Cepheids from the Small Magellanic Cloud.
Udalski A., Soszynski I., Szymanski M., Kubiak M., Pietrzynski G.,
Wozniak P., Zebrun K.
<Acta Astron., 49, 437 (1999)>
=1999AcA....49..437U 1999AcA....49..437U
ADC_Keywords: Magellanic Clouds ; Stars, variable ; Photometry, UBVRI
Keywords: Cepheids - Magellanic Clouds - catalogs
Abstract:
We present the Catalog of Cepheids from the SMC which contains data
for 2049 objects detected in the 2.4 square degree area of central
parts of the SMC. For each object period, BVI photometry, astrometry,
and R21, φ21 parameters of the Fourier decomposition of I-band
light curve are provided. The Catalog is based on observations
collected during the OGLE-II microlensing survey.
Tests of completeness performed in overlapping parts of adjacent
fields indicate that completeness of the Catalog is very high: approx
92%. Statistics and distributions of basic parameters of Cepheids are
also presented.
All presented data, including individual BVI observations (approx
4.7*105 BVI measurements), are available from the OGLE Internet
archive at URL:
ftp://sirius.astrouw.edu.pl/ogle/ogle2/var_stars/smc/cep/catalog
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 29 11 Fields positions
smc_sc.dat 167 2167 (Table 3) Catalog of Cepheids from SMC_SC fields
table4.dat 38 118 Cross-identification of the same objects in
the Catalog
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See also:
I/221 : The Magellanic Catalogue of Stars - MACS (Tucholke+ 1996)
J/AcA/48/147 : OGLE SMC BVI photometry (Udalski+ 1998)
J/AcA/49/563 : OGLE SMC eclipsing binaries BVI photometry (Udalski+ 1999)
J/AcA/49/543 : OGLE LMC & SMC Cepheids VI photometry (Pietrzynski+ 1999)
J/AcA/49/223 : BVI photometry of OGLE LMC Cepheids (Udalski+, 1999)
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 8 A8 --- Field SMC-SC field designation
10- 11 I2 h RAh Right ascension (J2000)
13- 14 I2 min RAm Right ascension (J2000)
16- 17 I2 s RAs Right ascension (J2000)
21 A1 --- DE- Declination sign (J2000)
22- 23 I2 deg DEd Declination (J2000)
25- 26 I2 arcmin DEm Declination (J2000)
28- 29 I2 arcsec DEs Declination (J2000)
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Byte-by-byte Description of file: smc_sc.dat
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Bytes Format Units Label Explanations
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1- 8 A8 --- Field SMC-SC field designation (SMC-SC)
10- 15 I6 --- Seq Sequential number in the field
16- 17 I2 h RAh Right ascension (J2000)
18 A1 --- --- [:]
19- 20 I2 min RAm Right ascension (J2000)
21 A1 --- --- [:]
22- 26 F5.2 s RAs Right ascension (J2000)
28 A1 --- DE- Declination sign (J2000)
29- 30 I2 deg DEd Declination (J2000)
31 A1 --- --- [:]
32- 33 I2 arcmin DEm Declination (J2000)
34 A1 --- --- [:]
35- 38 F4.1 arcsec DEs Declination (J2000)
40- 47 F8.5 d Per Period
49- 61 F13.5 d HJD Heliocentric Julian Date at maximum brightness
63- 70 F8.5 [d] log10(P) log of the period
72- 77 F6.3 mag Imag ?=99.999 I magnitude
79- 84 F6.3 mag Vmag ?=99.999 V magnitude
86- 91 F6.3 mag Bmag ?=99.999 B magnitude
93- 98 F6.3 mag B-V ?=9.999 B-V colour index
100-104 F5.3 mag V-I ?=9.999 V-I colour index
106-111 F6.3 mag WI ?=99.999 WI (I-1.55(V-I)) extinction
insensitive index
113-117 F5.3 mag E(B-V) Reddening
119-124 F6.3 mag I0mag Derredenned I magnitude
126-131 F6.3 mag V0mag ?=99.999 Derredenned V magnitude
133-138 F6.3 mag B0mag ?=99.999 Derredenned B magnitude
140-145 F6.3 mag B-V0 ?=9.999 Derredenned B-V colour index
147-152 F6.3 mag V-I0 ?=9.999 Derredenned V-I colour index
154-158 F5.3 --- R21 ?=9.999 Fourier parameter A2/A1
160-164 F5.3 rad phi21 ?=9.999 Fourier parameter φ2-2φ1
166-167 A2 --- Type Classification type (1)
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Note (1): Classification of pulsating mode as follows:
FU = classical Cepheid pulsating in the fundamental mode
FO = classical Cepheid pulsating in the first overtone
BR = object brighter than FO mode Cepheids
FA = object fainter than FU mode Cepheids
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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- 8 A8 --- Field1 First SMC-SC field name
10- 15 I6 --- Seq1 Star number in field1
18- 20 A3 --- --- ←> Equivalence flag
23- 30 A8 --- Field2 Second SMC-SC field name
33- 38 I6 --- Seq2 Star number in field2
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History: Copied at
ftp://sirius.astrouw.edu.pl/ogle/ogle2/var_stars/smc/cep/catalog
(End) James Marcout, Patricia Bauer [CDS] 07-Feb-2000