Index of /ogle/ogle4/OCVS/blg/dsct
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The OGLE Collection of Variable Stars
Delta Scuti Stars toward the Galactic Bulge
P. Pietrukowicz, I. Soszynski, H. Netzel, M. Wrona, A. Udalski,
M.K. Szymanski, R. Poleski, S. Kozlowski, J. Skowron, K. Ulaczyk,
D.M. Skowron, P. Mroz, K. Rybicki, P. Iwanek, and M. Gromadzki
=======================================================================
pietruk@astrouw.edu.pl, soszynsk@astrouw.edu.pl
This directory contains the OGLE collection of delta Scuti-type stars
toward the Galactic bulge.
The directory structure is as follows:
README - this file
ident.dat - identification of stars
dsct.dat - parameters of delta Scuti stars
dsctspecconf.dat - parameters of stars confirmed spectroscopically
remarks.txt - remarks on selected objects
phot_ogle2/I/ - I-band OGLE-II photometry of individual stars (1997-2000)
phot_ogle2/V/ - V-band OGLE-II photometry of individual stars (1997-2000)
phot_ogle2.tar.gz - gzipped phot_ogle2/ directory
phot_ogle3/I/ - I-band OGLE-III photometry of individual stars (2001-2009)
phot_ogle3/V/ - V-band OGLE-III photometry of individual stars (2001-2009)
phot_ogle3.tar.gz - gzipped phot_ogle3/ directory
phot_ogle4/I/ - I-band OGLE-IV photometry of individual stars (2010-2020)
phot_ogle4/V/ - V-band OGLE-IV photometry of individual stars (2010-2020)
phot_ogle4.tar.gz - gzipped phot_ogle4/ directory
fcharts/ - finding charts of individual stars
spectra/ - EFOSC2 low-resolution spectra in the format:
lambda [Angstrom], flux
paper1.pdf - PDF version of the paper Pietrukowicz et al. (2020),
Acta Astron. 70, 241, (arXiv:2103.10436) describing
the collection
paper2.pdf - PDF version of the paper Soszynski et al. (2021),
Acta Astron. 71, 189, (arXiv:2111.03072) describing
the collection
paper3.pdf - PDF version of the paper Pietrukowicz et al. (2022),
Acta Astron. 72, 161, (arXiv:2212.07355) adding 24
spectroscopically confirmed objects
Format of the file ident.dat:
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Bytes Format Units Description
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1- 19 A19 --- Star's ID
22- 31 A10 --- Type (singlemode, multimode)
34- 35 I2 h Right ascension, equinox J2000.0 (hours)
37- 38 I2 m Right ascension, equinox J2000.0 (minutes)
40- 44 F5.2 s Right ascension, equinox J2000.0 (seconds)
46 A1 --- Declination, equinox J2000.0 (sign)
47- 48 I2 deg Declination, equinox J2000.0 (degrees)
50- 51 I2 arcmin Declination, equinox J2000.0 (arc minutes)
53- 56 F4.1 arcsec Declination, equinox J2000.0 (arc seconds)
59- 74 A16 --- OGLE-IV ID
76- 90 A15 --- OGLE-III ID
92-107 A16 --- OGLE-II ID
109- A --- Other designation (GCVS, OGLE-I, MACHO, ASAS-SN)
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Format of the file dsct.dat:
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Bytes Format Units Description
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1- 19 A19 --- Star's ID
22- 27 F6.3 mag Intensity mean I-band magnitude
29- 34 F6.3 mag Intensity mean V-band magnitude
37- 46 F10.8 days Primary period
48- 57 F10.8 days Uncertainty of primary period
60- 69 F10.5 days Time of maximum brightness (HJD-2450000)
72- 76 F5.3 mag I-band amplitude (maximum-minimum)
79- 83 F5.3 --- Fourier coefficient R_21
85- 89 F5.3 --- Fourier coefficient phi_21
92- 96 F5.3 --- Fourier coefficient R_31
98-102 F5.3 --- Fourier coefficient phi_31
105-114 F10.8 days Secondary period (if available)
116-125 F10.8 days Uncertainty of secondary period
128-137 F10.5 days Time of maximum brightness (HJD-2450000)
140-144 F5.3 mag I-band amplitude (maximum-minimum)
147-151 F5.3 --- Fourier coefficient R_21
153-157 F5.3 --- Fourier coefficient phi_21
160-164 F5.3 --- Fourier coefficient R_31
166-170 F5.3 --- Fourier coefficient phi_31
173-182 F10.8 days Tertiary period (if available)
184-193 F10.8 days Uncertainty of tertiary period
196-205 F10.5 days Time of maximum brightness (HJD-2450000)
208-212 F5.3 mag I-band amplitude (maximum-minimum)
215-219 F5.3 --- Fourier coefficient R_21
221-225 F5.3 --- Fourier coefficient phi_21
228-232 F5.3 --- Fourier coefficient R_31
234-238 F5.3 --- Fourier coefficient phi_31
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Format of the file dsctspecconf.dat:
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Bytes Format Units Description
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1- 19 A19 --- Star's ID
22- 27 F6.3 mag Intensity mean I-band magnitude
29- 34 F6.3 mag Intensity mean V-band magnitude
37- 48 F12.10 days Primary period
50- 61 F12.10 days Uncertainty of primary period
64- 75 F12.10 days Secondary period
77- 88 F12.10 days Uncertainty of secondary period
91-102 F12.10 days Tertiary period (if available)
104-115 F12.10 days Uncertainty of tertiary period
118-129 F12.10 days Four-row period (if available)
131-142 F12.10 days Uncertainty of four-row period
145-156 F12.10 days Five-row period (if available)
158-169 F12.10 days Uncertainty of five-row period
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Format of the photometry files (OGLE-BLG-DSCT-NNNNNN.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: OGLE-BLG-DSCT-NNNNN.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 collection of delta Scuti-type stars should include the appropriate
reference(s) to OGLE paper(s).
Updates:
2022-08-20 28 delta Scuti stars from the Gaia DR3 catalog added
(from OGLE-BLG-DSCT-16832 to OGLE-BLG-DSCT-16859)
2022-12-15 24 additional delta Scuti stars confirmed spectroscopically
(from OGLE-BLG-DSCT-16860 to OGLE-BLG-DSCT-16884)