Index of /ogle/ogle4/OCVS/lmc/cep
=======================================================================
The OGLE Collection of Variable Stars
Classical Cepheids in the Large Magellanic Cloud
I. Soszynski, A. Udalski, M. K. Szymanski, D. Skowron, G. Pietrzynski,
R. Poleski, P. Pietrukowicz, J. Skowron, P. Mroz, S. Kozlowski,
L. Wyrzykowski, K. Ulaczyk, and M. Pawlak
=======================================================================
soszynsk@astrouw.edu.pl
This directory contains the OGLE catalog classical Cepheids in the Large
Magellanic Cloud.
The directory structure is as follows:
README - this file
ident.dat - identification of stars
cepF.dat - parameters of fundamental-mode (F) Cepheids
cep1O.dat - parameters of first-overtone (1O) Cepheids
cep2O.dat - parameters of second-overtone (2O) Cepheids
cepF1O.dat - parameters of double-mode F/1O Cepheids
cep1O2O.dat - parameters of double-mode 1O/2O Cepheids
cepF1O2O.dat - parameters of a triple-mode F/1O/2O Cepheid
cep1O2O3O.dat - parameters of triple-mode 1O/2O/3O Cepheids
cep1O3O.dat - parameters of a double-mode 1O/3O Cepheid
cep2O3O.dat - parameters of a double-mode 2O/3O Cepheid
phot/I/ - I-band photometry of individual objects
phot/V/ - V-band photometry of individual objects
phot.tar.gz - gzipped phot/ directory
fcharts/ - finding charts of individual objects
remarks.txt - remarks on selected objects
pap.pdf - PDF version of the paper Soszynski et al. (2015),
Acta Astron. 65, 297, (arXiv:1601.01318) describing the
catalog.
Format of the file ident.dat:
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Bytes Format Units Description
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1- 17 A17 --- Star's ID
19- 26 A8 --- Mode(s) of pulsation
29- 30 I2 h Right ascension, equinox J2000.0 (hours)
32- 33 I2 m Right ascension, equinox J2000.0 (minutes)
35- 39 F5.2 s Right ascension, equinox J2000.0 (seconds)
41 A1 --- Declination, equinox J2000.0 (sign)
42- 43 I2 deg Declination, equinox J2000.0 (degrees)
45- 46 I2 arcmin Declination, equinox J2000.0 (arc minutes)
48- 51 F4.1 arcsec Declination, equinox J2000.0 (arc seconds)
54- 69 A16 --- OGLE-IV ID
71- 85 A15 --- OGLE-III ID
87-101 A15 --- OGLE-II ID
103- A --- Other designation (from GCVS)
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Format of files cepF.dat, cep1O.dat, and cep2O.dat:
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Bytes Format Units Description
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1- 17 A17 --- Star's ID
20- 25 F6.3 mag Intensity mean I-band magnitude
27- 32 F6.3 mag Intensity mean V-band magnitude
34- 44 F11.7 days Period
46- 54 F9.7 days Uncertainty of period
57- 66 F10.5 days Time of maximum brightness (HJD-2450000)
69- 73 F5.3 mag I-band amplitude (maximum-minimum)
76- 80 F5.3 --- Fourier coefficient R_21
82- 86 F5.3 --- Fourier coefficient phi_21
89- 93 F5.3 --- Fourier coefficient R_31
95- 99 F5.3 --- Fourier coefficient phi_31
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Format of files cepF1O.dat, cep1O2O.dat, cep1O3O.dat, and cep2O3O.dat:
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Bytes Format Units Description
--------------------------------------------------------------------------
1- 17 A17 --- Star's ID
20- 25 F6.3 mag Intensity mean I-band magnitude
27- 32 F6.3 mag Intensity mean V-band magnitude
34- 44 F11.7 days Longer period
46- 54 F9.7 days Uncertainty of the longer period
57- 66 F10.5 days Time of maximum brightness (HJD-2450000)
69- 73 F5.3 mag I-band amplitude (maximum-minimum)
76- 80 F5.3 --- Fourier coefficient R_21
82- 86 F5.3 --- Fourier coefficient phi_21
89- 93 F5.3 --- Fourier coefficient R_31
95- 99 F5.3 --- Fourier coefficient phi_31
101-110 F10.7 days Shorter period
112-120 F9.7 days Uncertainty of the shorter period
123-132 F10.5 days Time of maximum brightness (HJD-2450000)
135-139 F5.3 mag I-band amplitude (maximum-minimum)
142-146 F5.3 --- Fourier coefficient R_21
148-152 F5.3 --- Fourier coefficient phi_21
155-159 F5.3 --- Fourier coefficient R_31
161-165 F5.3 --- Fourier coefficient phi_31
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Format of files cepF1O2O.dat and cep1O2O3O.dat:
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Bytes Format Units Description
--------------------------------------------------------------------------
1- 17 A17 --- Star's ID
20- 25 F6.3 mag Intensity mean I-band magnitude
27- 32 F6.3 mag Intensity mean V-band magnitude
34- 44 F11.7 days Longest period
46- 54 F9.7 days Uncertainty of the longest period
57- 66 F10.5 days Time of maximum brightness (HJD-2450000)
69- 73 F5.3 mag I-band amplitude (maximum-minimum)
76- 80 F5.3 --- Fourier coefficient R_21
82- 86 F5.3 --- Fourier coefficient phi_21
89- 93 F5.3 --- Fourier coefficient R_31
95- 99 F5.3 --- Fourier coefficient phi_31
101-110 F10.7 days Medium period
112-120 F9.7 days Uncertainty of the medium period
123-132 F10.5 days Time of maximum brightness (HJD-2450000)
135-139 F5.3 mag I-band amplitude (maximum-minimum)
142-146 F5.3 --- Fourier coefficient R_21
148-152 F5.3 --- Fourier coefficient phi_21
155-159 F5.3 --- Fourier coefficient R_31
161-165 F5.3 --- Fourier coefficient phi_31
167-176 F10.7 days Shortest period
178-186 F9.7 days Uncertainty of the shortest period
189-198 F10.5 days Time of maximum brightness (HJD-2450000)
201-205 F5.3 mag I-band amplitude (maximum-minimum)
208-212 F5.3 --- Fourier coefficient R_21
214-218 F5.3 --- Fourier coefficient phi_21
221-225 F5.3 --- Fourier coefficient R_31
227-231 F5.3 --- Fourier coefficient phi_31
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Format of the files with photometry (phot/I/OGLE-LMC-CEP-NNNN.dat,
phot/V/OGLE-LMC-CEP-NNNN.dat)
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Bytes Format Units Description
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1- 10 F10.5 days Heliocentric Julian Day - 2450000
12- 17 F6.3 mag Magnitude
19- 23 F5.3 mag Uncertainty of magnitude
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Finding charts are gzipped Postscript images. The names of the files are in
the form: ID.ps.gz. The finding charts are 60"x60" subframes of the I-band
reference frames centered on the star. White cross marks the star. North is
up and East to the left.
Any presentation of the scientific analysis or usage of the data from the
catalog of classical Cepheids in the Magellanic Clouds should include the
appropriate reference(s) to OGLE paper(s).
Updates:
2017-06-30 The collection extended with Cepheids from OGLE-LMC-CEP-4625
to OGLE-LMC-CEP-4709 detected in the OGLE-IV auxiliary
photometric databases. Light curves of other objects
supplemented with new observations. For details see: Soszynski
et al. (2017), Acta Astron. 67, 103 (arXiv:1706.09452).
2018-06-04 Corrected erroneous calibration of the V-band photometry for
47 objects.
2018-07-12 Corrected erroneous calibration of the I-band photometry for
297 objects.
2019-07-04 The collection extended with three classical Cepheids from
OGLE-LMC-CEP-4710 to OGLE-LMC-CEP-4712 detected in the OGLE-IV
outer fields. For details see: Soszynski et al. (2019), Acta
Astron. 69, 87 (arXiv:1907.02073).
OGLE-LMC-CEP-3376 reclassified as an anomalous Cepheid and
removed from this collection.
2022-08-20 3 additional classical Cepheids from the Gaia DR3 catalog
(from OGLE-LMC-CEP-4713 to OGLE-LMC-CEP-4715)
2023-09-25 removed 3 reclassified stars (OGLE-LMC-CEP-0016,
OGLE-LMC-CEP-3367, OGLE-LMC-CEP-3374)
2023-09-25 7 additional classical Cepheids (from OGLE-LMC-CEP-4716 to
OGLE-LMC-CEP-4722)
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