J/ApJS/259/16 Heartbeat stars in the Gal. bulge & MCs from OGLE (Wrona+, 2022)
The OGLE collection of variable stars: one thousand heartbeat stars in the
Galactic Bulge and Magellanic Clouds.
Wrona M., Ratajczak M., Kolaczek-Szymanski P.A., Kozlowski S., Soszynski I.,
Iwanek P., Udalski A., Szymanski M.K., Pietrukowicz P., Skowron D.M.,
Skowron J., Mroz P., Poleski R., Gromadzki M., Ulaczyk K., Rybicki K.
<Astrophys. J. Suppl. Ser., 259, 16 (2022)>
=2022ApJS..259...16W 2022ApJS..259...16W
ADC_Keywords: Stars, double and multiple; Stars, variable; Magellanic Clouds;
Milky Way; Photometry, UBVRI
Keywords: Binary stars ; Tidal distortion ; Time domain astronomy ;
Celestial objects catalogs ; Elliptical orbits ; Galactic bulge ;
Magellanic Clouds ; Periodic variable stars ; Stellar oscillations
Abstract:
We present a collection of 991 heartbeat star (HBS) candidates found
in the Optical Gravitational Lensing Experiment (OGLE) project data
archive. We discuss the selection process of the HBS candidates and
the structure of the catalog itself. It consists of 512 stars located
toward the Galactic bulge, 439 stars located in the Large Magellanic
Cloud, and 40 in the Small Magellanic Cloud. The collection contains
two large groups of HBSs with different physical properties. The main
distinction between the two groups is the evolutionary status of the
primary star. The first group of about 100 systems contains a hot
main-sequence or a Hertzsprung-gap primary star, while the second
group of about 900 systems includes a red giant. For each star, we
provide two-decade-long time-series photometry, in the Cousins I- and
Johnson V-band filters, obtained by the OGLE project. We also present
basic observational information as well as orbital parameters derived
from the light-curve modeling.
Description:
In this work, we use data collected mainly during the fourth phase of
the OGLE project (OGLE-IV), which lasted from 2010 March until 2020
March, when the COVID-19 pandemic forced the OGLE operations to stop.
All the observations were taken using the 1.3m Warsaw telescope, which
is located at Las Campanas Observatory, Chile (the facility site is
operated by the Carnegie Institution for Science). The vast majority
of photometric data were collected in a Cousins I-band filter.
In the catalog, we also provide data from earlier phases of the OGLE
project--OGLE-II and OGLE-III, which took place from 1997 to 2000 and
from 2001 to 2009, respectively. About 90% of our sample of heartbeat
stars (HBSs) were observed during the OGLE-III (the mean number of
epochs is about 720) and 30% during the OGLE-II (350 epochs on average).
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
tablea1.dat 127 991 Identification and coordinates of the
heartbeat stars (HBSs)
tablea2.dat 97 991 Basic observational and orbital information about
each heartbeat star (HBS) system
tablea3.dat 198 991 The Kumar's model parameters from the MCMC
fitting procedure
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See also:
B/vsx : AAVSO International Var. Star Index VSX (Watson+, 2006-2014)
II/366 : ASAS-SN catalog of variable stars (Jayasinghe+, 2018-2020)
J/AcA/48/147 : OGLE SMC BVI photometry (Udalski+ 1998)
J/AcA/50/421 : OGLE-II DIA BUL_SC1 field (Wozniak, 2000)
J/AcA/54/1 : OGLE II SMC eclipsing binaries (Wyrzykowski+, 2004)
J/AcA/54/347 : IVB mag of LMC ellipsoidal variables (Soszinski+, 2004)
J/MNRAS/349/1059 : OGLE variables in Galactic bar (Wray+, 2004)
J/ApJ/788/48 : X-ray through NIR photometry of NGC 2617 (Shappee+, 2014)
J/A+A/566/A43 : EPOCH Project. EROS-2 LMC periodic variables (Kim+, 2014)
J/A+A/572/A71 : Times of minima for 18 SMC eclipsing binaries (Zasche, 2014)
J/AcA/65/313 : One thousand new dwarf novae from OGLE (Mroz+, 2015)
J/AJ/149/197 : Minima of 10 Kepler eclipsing binaries (Zasche+, 2015)
J/AJ/151/68 : Kepler Mission. VII. Eclipsing binaries in DR3 (Kirk+, 2016)
J/AcA/66/421 : Eclipsing binaries in the Magellanic System (Pawlak+, 2016)
J/AcA/66/405 : Gal. bulge eclipsing & ellipsoidal bin. (Soszynski+, 2016)
J/ApJ/835/209 : Orbital nature of ellipsoidal red giant bin. (Nie+, 2017)
J/ApJS/237/28 : WISE catalog of periodic variable stars (Chen+, 2018)
http://ogle.astrouw.edu.pl/ : OGLE home page
Byte-by-byte Description of file: tablea1.dat
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Bytes Format Units Label Explanations
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1- 3 A3 --- Loc Location (G1)
5- 20 A16 --- ID Identifier (G2)
22- 23 A2 --- Type Type (1)
25- 26 I2 h RAh [0/18] Hour of Right Ascension (J2000)
28- 29 I2 min RAm Minute of Right Ascension (J2000)
31- 35 F5.2 s RAs Second of Right Ascension (J2000)
37- 37 A1 --- DE- Sign of the Declination (J2000)
38- 39 I2 deg DEd [20/74] Degree of Declination (J2000)
41- 42 I2 arcmin DEm Arcminute of Declination (J2000)
44- 47 F4.1 arcsec DEs Arcsecond of Declination (J2000)
49- 64 A16 --- OGLE-IV OGLE-IV identifier (,
or
in Simbad)
66- 80 A15 --- OGLE-III OGLE-III identifier (,
or
in Simbad)
82- 96 A15 --- OGLE-II OGLE-II identifier
(<OGLE-II CCC-SCNN NNNNNN> in Simbad)
98-127 A30 --- Other Other identifiers (2)
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Note (1): Type as follows:
RG = system contaning a red giant star (887 occurrences);
MS = system contaning a main-sequence (or post main-sequence) star
(104 occurrences).
Note (2): From OCVS or (if does not exist) the best match with
SIMBAD/AAVSO/ASAS-SN database.
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Byte-by-byte Description of file: tablea2.dat
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Bytes Format Units Label Explanations
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1- 3 A3 --- Loc Location (G1)
5- 20 A16 --- ID Identifier (G2)
22- 27 F6.3 mag Imag [12.57/18.2] Intensity mean I-band magnitude
29- 34 F6.3 mag Vmag [13.26/26.15] Intensity mean V-band magnitude
36- 48 F13.8 d Per [2.78/2555.5] Orbital period
50- 59 F10.4 d T0 [9000/10622] Epoch of the periastron passage;
HJD-2450000
61- 65 F5.3 mag Amp [0.007/0.7] Kumar's model peak-to-peak I-band
amplitude
67- 72 F6.4 deg e [0.019/0.81] Orbital eccentricity
74- 78 F5.2 deg i [8.9/90] Orbital inclination
80- 85 F6.2 deg omega [0.08/180] Argument of periastron
87- 95 A9 --- Var Additional variability (3)
97 I1 --- Mod [0/1]? Kumar's model flag (4)
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Note (3): Variability as follows:
ECL = eclipses or spots (115+19 occurrences);
OSARG = OGLE Small Amplitude Red Giant oscillations (163+12 occurrences);
TEO = Tidally-excited oscillations (47+5 occurrences);
MISC = miscellaneous variability (2 occurrences).
Note (4): Flag as follows:
1 = well-fitted Kumar's model to the light curve;
0 = fitted model is unreliable, use with caution (144 occurrences).
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Byte-by-byte Description of file: tablea3.dat
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Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 3 A3 --- Loc Location (G1)
5- 20 A16 --- ID Identifier (G2)
22- 34 F13.8 d Per [2.78/2555.5] Orbital period
36- 45 F10.8 d e_Per [3.1e-6/3.4] The 50th-16th percentile of
parameter distribution in Per
47- 56 F10.8 d E_Per [3.8e-6/3.2] The 84th-50th percentile of
parameter distribution in Per
58- 63 F6.4 --- e [0.019/0.81] Orbital eccentricity
65- 70 F6.4 --- e_e [0.0001/0.13] The 50th-16th percentile of
parameter distribution in e
72- 77 F6.4 --- E_e [0.0001/0.17] The 84th-50th percentile of
parameter distribution in e
79- 83 F5.2 deg i [8.9/90] Orbital inclination
85- 89 F5.2 deg e_i [0.01/16.4] The 50th-16th percentile of
parameter distribution in i
91- 95 F5.2 deg E_i [0.01/14.3] The 84th-50th percentile of
parameter distribution in i
97- 102 F6.2 deg omega [0.08/180] Argument of periastron
104- 109 F6.2 deg e_omega [0.01/147] The 50th-16th percentile of parameter
distribution in omega
111- 116 F6.2 deg E_omega [0.01/139] The 84th-50th percentile of parameter
distribution in omega
118- 127 F10.4 d T0 [9000/10622] Epoch of the periastron passage;
HJD-2450000
129- 135 F7.4 d e_T0 [0.0076/10.5] The 50th-16th percentile of
parameter distribution in T0
137- 143 F7.4 d E_T0 [0.008/11.5] The 84th-50th percentile of
parameter distribution in T0
145- 152 F8.6 --- S [0.00039/1.07] Scaling factor
154- 161 F8.6 --- e_S [8e-6/0.042] The 50th-16th percentile of
parameter distribution in S
163- 170 F8.6 --- E_S [7e-6/0.018] The 84th-50th percentile of
parameter distribution in S
172- 180 F9.6 --- C [-0.9999/0.027] Zero point offset
182- 189 F8.6 --- e_C [1.2e-5/0.018] The 50th-16th percentile of
parameter distribution in C
191- 198 F8.6 --- E_C [1.3e-5/0.037] The 84th-50th percentile of
parameter distribution in C
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Global notes:
Note (G1): Location as follows:
GB = Galactic Bulge (512 occurrences);
LMC = Large Magellanic Cloud (439 occurrences);
SMC = Small Magellanic Cloud (40 occurrences).
Note (G2): In the format OGLE-MMM-HB-NNNN, where MMM is a location indicator
(BLG - Galactic bulge, LMC - Large Magellanic Cloud,
SMC - Small Magellanic Cloud), and NNNN is a 4-digit number.
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History:
From electronic version of the journal
(End) Prepared by [AAS], Emmanuelle Perret [CDS] 31-May-2022