J/AcA/71/189 OGLE Galactic bulge and disk delta Scuti (Soszynski+, 2021)
Over 24 000 delta Scuti Stars in the Galactic bulge and disk from the
OGLE survey.
Soszynski I., Pietrukowicz P., Skowron J., Udalski A., Szymanski M.K.,
Skowron D.M., Poleski R., Kozlowski S., Mroz P., Ulaczyk K., Rybicki K.,
Iwanek P., Wrona M., Gromadzki M.
<Acta Astron., 71, 189-204 (2021)>
=2021AcA....71..189S 2021AcA....71..189S (SIMBAD/NED BibCode)
ADC_Keywords: Milky Way ; Stars, variable ; Photometry ; Optical
Keywords: stars: variables: delta Scuti - stars: oscillations - galaxy: bulge -
Galaxy: disk - catalogs
Abstract:
We present the largest collection of d Scuti-type stars in the Milky
Way. Together with the recently published OGLE collection of delta Sct
variables in the inner Galactic bulge, our sample consists of 24488
objects distributed along the MilkyWay plane, over galactic longitudes
ranging from about -170° to +60°. The collection data include
the I- and V-band time-series photometry collected since 1997 during
the OGLE-II, OGLE-III, and OGLE-IV surveys. We show the on-sky
distribution of delta Sct stars in the Galactic bulge and disk,
discuss their period, luminosity and amplitude distributions, present
Petersen diagram for multimode pulsators, distinguish 34 delta Sct
stars in eclipsing and ellipsoidal binary systems, and list probable
members of globular clusters.
Description:
We release the largest sample of delta Sct stars in the Milky Way. Our
collection includes about 10000 variables identified by Pietrukowicz
et al. (2020AcA....70..241P 2020AcA....70..241P) in the OGLE Galactic bulge fields and
over 14 000 new objects detected in the GVS fields in the Galactic
disk and outer bulge. The vast majority (∼88%) of these new delta Sct
stars have not been reported by other sky surveys so far. For each
object, we provide its long-term OGLE light curves spanning over 20
years (OGLE-II + OGLE-III + OGLE-IV) in some cases. These data are
available through a user-friendly WWW interface. Our collection
provides a framework for better understanding of pulsations and
evolution of intermediate-mass stars.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
ident.dat 136 24606 Identification of stars
(15 Dec 2022 version)
dsct.dat 238 24582 Parameters of delta Scuti stars
dsctspco.dat 169 24 Galactic bulge parameters of stars confirmed
spectroscopically (Pietrukowicz et al.,
2022AcA....72..161P 2022AcA....72..161P)
sp/* . 24 Individual spectra
table1.dat 75 20 New delta Sct stars with additional
eclipsing or ellipsoidal modulation
table2.dat 69 5 delta Sct stars with additional long-term
modulation
remarks.dat 75 83 Remarks on selected objects
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See also:
ftp.astrouw.edu.pl/ogle/ogle4/OCVS/ : OGLE 4 Variable Home Page
Byte-by-byte Description of file: ident.dat
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Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 19 A19 --- Star Star's ID (G1)
22- 31 A10 --- Type Type (singlemode, multimode)
34- 35 I2 h RAh Right ascension (J2000.0)
37- 38 I2 min RAm Right ascension (J2000.0)
40- 44 F5.2 s RAs Right ascension (J2000.0)
46 A1 --- DE- Declination sign (J2000)
47- 48 I2 deg DEd Declination (J2000)
50- 51 I2 arcmin DEm Declination (J2000)
53- 56 F4.1 arcsec DEs Declination (J2000)
59- 74 A16 --- OGLE-IV OGLE-IV ID
76- 90 A15 --- OGLE-III OGLE-III ID
92-107 A16 --- OGLE-II OGLE-II ID
109-136 A28 --- OName Other designation
(GCVS, OGLE-I, MACHO, ASAS-SN)
--------------------------------------------------------------------------
Byte-by-byte Description of file: dsct.dat
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Bytes Format Units Label Explanations
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1- 19 A19 --- Star Star's ID (G1)
22- 27 F6.3 mag <Imag> Intensity mean I-band magnitude
29- 34 F6.3 mag <Vmag> ?=- Intensity mean V-band magnitude
37- 46 F10.8 d P1 Primary period
48- 57 F10.8 d e_P1 Uncertainty of primary period
60- 69 F10.5 d T0.1 Time of maximum brightness (HJD-2450000)
72- 76 F5.3 mag Iamp.1 I-band amplitude (maximum-minimum)
79- 83 F5.3 --- R21.1 Fourier coefficient R_21
85- 89 F5.3 --- phi21.1 ?=-Fourier coefficient phi_21
92- 96 F5.3 --- R31.1 Fourier coefficient R_31
98-102 F5.3 --- phi31.1 ?=- Fourier coefficient phi_31
105-114 F10.8 d P2 ?=- Secondary period (if available)
116-125 F10.8 d e_P2 ?=- Uncertainty of secondary period
128-137 F10.5 d T0.2 ?=- Time of maximum brightness (HJD-2450000)
140-144 F5.3 mag Iamp.2 ?=- I-band amplitude (maximum-minimum)
147-151 F5.3 --- R21.2 ?=- Fourier coefficient R_21
153-157 F5.3 --- phi21.2 ?=- Fourier coefficient phi_21
160-164 F5.3 --- R31.2 ?=- Fourier coefficient R_31
166-170 F5.3 --- phi31.2 ?=- Fourier coefficient phi_31
173-182 F10.8 d P3 ?=- Tertiary period (if available)
184-193 F10.8 d e_P3 ?=- Uncertainty of tertiary period
196-205 F10.5 d T0.3 ?=- Time of maximum brightness (HJD-2450000)
208-212 F5.3 mag Iamp.3 ?=- I-band amplitude (maximum-minimum)
215-219 F5.3 --- R21.3 ?=- Fourier coefficient R_21
221-225 F5.3 --- phi21.3 ?=- Fourier coefficient phi_21
228-232 F5.3 --- R31.3 ?=- Fourier coefficient R_31
234-238 F5.3 --- phi31.3 ?=- Fourier coefficient phi_31
--------------------------------------------------------------------------
Byte-by-byte Description of file: dsctspco.dat
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Bytes Format Units Label Explanations
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1- 19 A19 --- Star Star's ID (G1)
22- 27 F6.3 mag <Imag> Intensity mean I-band magnitude
29- 34 F6.3 mag <Vmag> Intensity mean V-band magnitude
37- 48 F12.10 d P1 Primary period
50- 61 F12.10 d e_P1 Uncertainty of primary period
64- 75 F12.10 d P2 Secondary period
77- 88 F12.10 d e_P2 Uncertainty of secondary period
91-102 F12.10 d P3 ?=- Tertiary period (if available)
104-115 F12.10 d e_P3 ?=- Uncertainty of tertiary period
118-129 F12.10 d P4 ?=- Four-row period (if available)
131-142 F12.10 d e_P4 ?=- Uncertainty of four-row period
145-156 F12.10 d P5 ?=- Five-row period (if available)
158-169 F12.10 d e_P5 ?=- Uncertainty of five-row period
--------------------------------------------------------------------------
Byte-by-byte Description of file: sp/*
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Bytes Format Units Label Explanations
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1- 9 F9.4 0.1nm lambda Wavelength
11- 18 F8.4 --- Flux Flux
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Byte-by-byte Description of file: table1.dat table2.dat
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Bytes Format Units Label Explanations
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1- 19 A19 --- Star Star's ID (G1)
21- 22 I2 h RAh Right ascension (J2000.0)
24- 25 I2 min RAm Right ascension (J2000.0)
27- 31 F5.2 s RAs Right ascension (J2000.0)
33 A1 --- DE- Declination sign (J2000)
34- 35 I2 deg DEd Declination (J2000)
37- 38 I2 arcmin DEm Declination (J2000)
40- 43 F4.1 arcsec DEs Declination (J2000)
45- 50 F6.3 mag <Imag> Intensity mean I-band magnitude
52- 61 F10.8 d Ppuls Pulsation period
63- 71 F9.6 d Porb Orbital period
73- 75 A3 --- Bin [EA EB Ell] Binarity type (only in table1)
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Byte-by-byte Description of file: remarks.dat
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Bytes Format Units Label Explanations
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1- 19 A19 --- Star Star's ID (G1)
21- 75 A55 --- Rem Remark
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Global notes:
Note (G1): Names are:
OGLE-BLG-DSCT-NNNNN for bulge delta Scuti
OGLE-GD-DSCT-NNNN for disk delta Scuti
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History:
Copied at ftp.astrouw.edu.pl/ogle/ogle4/OCVS/blg/dsct and
ftp.astrouw.edu.pl/ogle/ogle4/OCVS/gd/dsct
(End) Patricia Vannier [CDS] 25-May-2023