J/AcA/70/101 OGLE IV Galactic Cepheids (Soszynski+, 2020)
Additional Galactic Cepheids from the OGLE survey.
Soszynski I., Udalski A., Szymanski M.K., Pietrukowicz P., Skowron J.,
Skowron D.M., Poleski R., Kozlowski S., Mroz P., Ulaczyk K., Rybicki K.,
Iwanek P., Wrona M., Gromadzki M.
<Acta Astron., 70, 101-119 (2020)>
=2020AcA....70..101S 2020AcA....70..101S (SIMBAD/NED BibCode)
ADC_Keywords: Milky Way ; Stars, variable ; Photometry ; Optical
Keywords: stars: variables: Cepheids - stars: oscillations - Galaxy: bulge -
Galaxy: disk - Catalogs
Abstract:
We report on the results of a comprehensive search for Cepheid
variable stars in the fields photometrically monitored
by the OGLE Galaxy Variability Survey. We identify 742 Cepheids not
included in the first release of the OGLE Collection of Galactic
Cepheids and reclassify several dozen previously published variables.
The upgraded collection comprises 1974 classical, 1625 type II, and
119 anomalous Cepheids located in the area of about 3000 square
degrees covering the disk and bulge of the Milky Way.
We present the most interesting objects in our sample: an isolated
group of long-period double mode classical Cepheids pulsating in the
fundamental mode and first overtone, the first known Galactic
double-mode Cepheid with the second and third overtone excited,
double-mode type II Cepheids, candidates for single-mode
first-overtone BL Her stars, and Cepheids showing simultaneous
eclipsing variability. We also discuss type II and anomalous Cepheids
that are potential members of globular clusters.
Description:
The newly identified Cepheids have been added to the OGLE Collection
of Galactic Cepheids. The collection contains now 1974 classical
Cepheids, 1625 type II Cepheids, and 119 anomalous Cepheids in the
Galactic bulge and disk. The exact numbers of Cepheids belonging to
different subtypes are provided in Table 1.
Theses tables are an update of Udalski et al.
(2018AcA....68..315U 2018AcA....68..315U, Cat. J/AcA/68/315).
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 47 19 Number of Galactic Cepheids in the OCVS
ident.dat 128 3826 Identification of stars
(Galactic bulge and disk fields)
(20 Aug 2022 version)
t2cep.dat 110 1666 Parameters of type II Cepheids
acep.dat 110 164 Parameters of fundamental-mode (F) and
first-overtone (1O) anomalous Cepheids
cep.dat 110 1807 Parameters of fundamental-mode (F) and
first-overtone (1O) Cepheids
cep2.dat 176 223 Parameters of double-mode F/1O and 1O/2O and
2O/3O Cepheids
cep3.dat 242 10 Parameters of triple-mode 1O/2O/3O and F/1O/2O
Cepheids
gc.dat 34 64 Galactic bulge type II Cepheids objects located
within one tidal radius of globular clusters
remarks.dat 79 186 Remarks on selected objects
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See also:
J/AcA/65/233 : OGLE Magellanic Clouds anomalous Cepheids (Soszynski+, 2015)
J/AcA/68/315 : OGLE Galactic Cepheids (Udalski+, 2018)
J/AcA/65/297 : OGLE4 LMC and SMC Cepheids (Soszynski+, 2015)
J/AcA/68/89 : VI light curves of MC type II Cepheids (Soszynski+, 2018)
ftp.astrouw.edu.pl/ogle/ogle4/OCVS/ : OGLE 4 Variable Home Page
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 18 A18 --- Type Cepheid type
20- 33 A14 --- Mode Pulsaton mode
34- 37 I4 --- Nblg Number in Galactic bulge
39- 42 I4 --- Ndh Number in Galactic disc/halo
44- 47 I4 --- Ntot Total number
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Byte-by-byte Description of file: ident.dat
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Bytes Format Units Label Explanations
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1- 19 A19 --- Star Star's ID (G1)
21- 28 A8 --- Mode Subtype or pulsation mode (G2)
31- 32 I2 h RAh Right ascension (J2000.0)
34- 35 I2 min RAm Right ascension (J2000.0)
37- 41 F5.2 s RAs Right ascension (J2000.0)
43 A1 --- DE- Declination sign (J2000.0)
44- 45 I2 deg DEd Declination (J2000.0)
47- 48 I2 arcmin DEm Declination (J2000.0)
50- 53 F4.1 arcsec DEs Declination (J2000.0)
56- 71 A16 --- OGLE-IV OGLE-IV ID
73- 87 A15 --- OGLE-III OGLE-III ID
89-103 A15 --- OGLE-II OGLE-II ID
105-128 A24 --- OName Other designation (from VSX)
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Byte-by-byte Description of file: acep.dat cep.dat
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Bytes Format Units Label Explanations
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1- 19 A19 --- Star Star's ID (G1)
21- 28 A8 --- Mode Subtype or pulsation mode (G2)
31- 36 F6.3 mag <Imag> Intensity mean I-band magnitude
38- 43 F6.3 mag <Vmag> ?=- Intensity mean V-band magnitude
46- 55 F10.7 d Per Period
57- 65 F9.7 d e_Per Uncertainty of period
68- 77 F10.5 d T0 Time of maximum brightness (HJD-2450000)
80- 84 F5.3 mag Iamp I-band amplitude (maximum-minimum)
87- 91 F5.3 --- R21 Fourier coefficient R21
93- 97 F5.3 --- phi21 ?=- Fourier coefficient phi21
100-104 F5.3 --- R31 Fourier coefficient R31
106-110 F5.3 --- phi31 ?=- Fourier coefficient phi31
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Byte-by-byte Description of file: cep2.dat
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Bytes Format Units Label Explanations
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1- 19 A19 --- Star Star's ID (G1)
21- 28 A8 --- Mode Subtype or pulsation mode (G2)
31- 36 F6.3 mag <Imag> Intensity mean I-band magnitude
38- 43 F6.3 mag <Vmag> ?=- Intensity mean V-band magnitude
46- 55 F10.7 d Per Longer period
57- 65 F9.7 d e_Per Uncertainty of the longer period
68- 77 F10.5 d T0 Time of maximum brightness (HJD-2450000)
80- 84 F5.3 mag Iamp I-band amplitude (maximum-minimum)
87- 91 F5.3 --- R21 Fourier coefficient R21
93- 97 F5.3 --- phi21 ?=- Fourier coefficient phi21
100-104 F5.3 --- R31 Fourier coefficient R31
106-110 F5.3 --- phi31 ?=- Fourier coefficient phi31
112-121 F10.7 d PerS Shorter period
123-131 F9.7 d e_PerS Uncertainty of the shorter period
134-143 F10.5 d T0S Time of maximum brightness (HJD-2450000)
146-150 F5.3 mag IampS I-band amplitude (maximum-minimum)
153-157 F5.3 --- R21S Fourier coefficient R21
159-163 F5.3 --- phi21S ?=- Fourier coefficient phi21
166-170 F5.3 --- R31S Fourier coefficient R31
172-176 F5.3 --- phi31S ?=- Fourier coefficient phi31
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Byte-by-byte Description of file: cep3.dat
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Bytes Format Units Label Explanations
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1- 19 A19 --- Star Star's ID (G1)
21- 28 A8 --- Mode Subtype or pulsation mode (G2)
31- 36 F6.3 mag <Imag> Intensity mean I-band magnitude
38- 43 F6.3 mag <Vmag> ?=- Intensity mean V-band magnitude
46- 55 F10.7 d Per Longest period
57- 65 F9.7 d e_Per Uncertainty of the longest period
68- 77 F10.5 d T0 Time of maximum brightness (HJD-2450000)
80- 84 F5.3 mag Iamp I-band amplitude (maximum-minimum)
87- 91 F5.3 --- R21 Fourier coefficient R_21
93- 97 F5.3 --- phi21 ?=- Fourier coefficient phi_21
100-104 F5.3 --- R31 Fourier coefficient R_31
106-110 F5.3 --- phi31 ?=- Fourier coefficient phi_31
112-121 F10.7 d PerM Medium period
123-131 F9.7 d e_PerM Uncertainty of the medium period
134-143 F10.5 d T0M Time of maximum brightness (HJD-2450000)
146-150 F5.3 mag IampM I-band amplitude (maximum-minimum)
153-157 F5.3 --- R21M Fourier coefficient R_21
159-163 F5.3 --- phi21M ?=- Fourier coefficient phi_21
166-170 F5.3 --- R31M Fourier coefficient R_31
172-176 F5.3 --- phi31M ?=- Fourier coefficient phi_31
178-187 F10.7 d PerS Shortest period
189-197 F9.7 d e_PerS Uncertainty of the shortest period
200-209 F10.5 d T0S Time of maximum brightness (HJD-2450000)
212-216 F5.3 mag IampS I-band amplitude (maximum-minimum)
219-223 F5.3 --- R21S Fourier coefficient R_21
225-229 F5.3 --- phi21S ?=- Fourier coefficient phi_21
232-236 F5.3 --- R31S Fourier coefficient R_31
238-242 F5.3 --- phi31S ?=- Fourier coefficient phi_31
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Byte-by-byte Description of file: t2cep.dat
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Bytes Format Units Label Explanations
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1- 19 A19 --- Star Star's ID (G1)
21- 28 A8 --- Mode Subtype or pulsation mode (G2)
31- 36 F6.3 mag <Imag> Intensity mean I-band magnitude
38- 43 F6.3 mag <Vmag> ?=- Intensity mean V-band magnitude
46- 55 F10.7 d Per Period
57- 65 F9.7 d e_Per Uncertainty of period
68- 77 F10.5 d T0 Time of maximum brightness (HJD-2450000)
80- 84 F5.3 mag Iamp I-band amplitude (maximum-minimum)
87- 91 F5.3 --- R21 Fourier coefficient R_21
93- 97 F5.3 --- phi21 ?=- Fourier coefficient phi_21
100-104 F5.3 --- R31 Fourier coefficient R_31
106-110 F5.3 --- phi31 ?=- Fourier coefficient phi_31
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Byte-by-byte Description of file: gc.dat
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Bytes Format Units Label Explanations
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1- 19 A19 --- Star Star's ID (G1)
22- 34 A13 --- Name Globular cluster star name
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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- 79 A59 --- Rem Remark
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Global notes:
Note (G1): Names are:
OGLE-BLG-CEP-NNN for classical bulge Cepheids
OGLE-BLG-T2CEP-NNNN for type II bulge Cepheids
OGLE-GAL-ACEP-NNN for anomalous Cepheids
OGLE-GD-CEP-NNNN for classical disk Cepheids
OGLE-GD-T2CEP-NNNN for type II disk Cepheids
Note (G2): Modes:
F = Fundamental
1O = first overtone
2O = second overtone
3O = third overtone
Subtype of type II Cepheids:
BLHer, WVir, RVTau and pWVir
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History:
Copied at
http://ftp.astrouw.edu.pl/ogle/ogle4/OCVS/gd/cep
http://ftp.astrouw.edu.pl/ogle/ogle4/OCVS/gd/t2cep
http://ftp.astrouw.edu.pl/ogle/ogle4/OCVS/blg/cep
http://ftp.astrouw.edu.pl/ogle/ogle4/OCVS/blg/t2cep
http://ftp.astrouw.edu.pl/ogle/ogle4/OCVS/gal/acep
(End) Patricia Vannier [CDS] 22-May-2023