J/AJ/161/176 KISOGP: 7055 eclipsing binaries with KWFC (Ren+, 2021)
Eclipsing binary populations across the northern Galactic plane from the KISOGP
survey.
Ren F., De Grijs R., Zhang H., Deng L., Chen X., Matsunaga N., Liu C.,
Sun W., Maehara H., Ukita N., Kobayashi N.
<Astron. J., 161, 176-176 (2021)>
=2021AJ....161..176R 2021AJ....161..176R (SIMBAD/NED BibCode)
ADC_Keywords: Surveys; Stars, double and multiple; Photometry, RI;
Effective temperatures; Stars, diameters; Stars, masses
Keywords: Eclipsing binary stars; W Ursae Majoris variable stars
Distance indicators; Milky Way disk; Catalogs
Abstract:
We present a catalog of eclipsing binaries in the northern Galactic
plane from the Kiso Wide-Field Camera Intensive Survey of the Galactic
Plane (KISOGP). We visually identified 7055 eclipsing binaries spread
across ∼330deg2, including 4197 W Ursa Majoris/EW-type, 1458
βLyrae/EB-type, and 1400 Algol/EA-type eclipsing binaries. For
all systems, I-band light curves were used to obtain accurate system
parameters. We derived the distances and extinction values for the
EW-type objects from their period-luminosity relation. We also
obtained the structure of the thin disk from the distribution of our
sample of eclipsing binary systems, combined with those of high-mass
star-forming regions and Cepheid tracers. We found that the thin disk
is inhomogeneous in number density as a function of Galactic
longitude. Using this new set of distance tracers, we constrain the
detailed structure of the thin disk. Finally, we report a global
parallax zero-point offset of
Δπ=-42.1±1.9(stat.)±12.9(syst.)µas between our
carefully calibrated EW-type eclipsing binary positions and those
provided by Gaia Early Data Release 3. Implementation of the
officially recommended parallax zero-point correction results in a
significantly reduced offset. Additionally, we provide a photometric
characterization of our EW-type eclipsing binaries that can be applied
to further analyses.
Description:
The catalog was compiled from observations taken as part of the
Intensive Survey of the Galactic Plane (KISOGP) survey, acquired with
the Kiso Wide-Field Camera (KWFC) on the Kiso 105cm Schmidt telescope
at Kiso Observatory, Japan. The KWFC has been designed for wide-field
observations, taking advantage of the Kiso Schmidt telescope's large
focal-plane area. It mosaics eight CCD chips with 8kx8k pixels in
total and covers an area of 2.2x2.2°. Typically, for any object,
more than 200 exposures were acquired in the I band to a depth of
I=9.5-17mag with a signal-to-noise ratio (S/N) better than 30.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 124 7055 Eclipsing binaries catalog
table2.dat 107 2243 EW-type Parameters
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See also:
I/345 : Gaia DR2 (Gaia Collaboration, 2018)
II/366 : ASAS-SN catalog of variable stars (Jayasinghe+, 2018-2020)
J/AJ/119/1901 : ROTSE all-sky surveys for variable stars (Akerlof+, 2000)
J/AJ/136/1067 : New beta Lyrae and Algol candidates in NSVS (Hoffman+, 2008)
J/AJ/138/466 : NSVS variables automated classification (Hoffman+, 2009)
J/other/A+ARV/18.67 : Accurate masses and radii of normal stars (Torres+, 2010)
J/AN/333/706 : Bochum survey of the southern Galactic disk (Haas+, 2012)
J/ApJ/773/1 : Period of HD19356 recorded in Cairo Calendar? (Jetsu+, 2013)
J/ApJS/208/9 : Intrinsic colors and temperatures of PMS stars (Pecaut+, 2013)
J/MNRAS/430/2029 : Initial masses of W UMa type contact binaries (Yildiz+,2013)
J/A+A/566/A37 : Iron abundances for 42 Galactic Cepheids (Genovali+, 2014)
J/ApJ/783/130 : Parallaxes of high mass star forming regions (Reid+, 2014)
J/ApJS/213/9 : Catalina Surveys periodic variable stars (Drake+, 2014)
J/AJ/149/99 : VVV globulars. I. 2MASS-GC 02, Terzan 10 (Alonso-Garcia+, 2015)
J/ApJ/842/42 : Improved reddenings for 59 Galactic Cepheids (Madore+, 2017)
J/ApJS/232/16 : Mira stars discovered in LAMOST DR4 (Yao+, 2017)
J/MNRAS/465/4678 : 9380 contact binaries from CRTS VSC (Marsh+, 2017)
J/MNRAS/469/3688 : CSS Periodic Variable Star Catalogue (Drake+, 2017)
J/AJ/156/241 : First catalog variable stars measured by ATLAS (Heinze+, 2018)
J/ApJ/859/140 : Multi-band magnitudes for W UMa EB* candidates (Chen+, 2018)
J/ApJS/237/28 : WISE catalog of periodic variable stars (Chen+, 2018)
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 23 A23 --- KISO KISO System Identifier
25- 27 I3 --- NExp [32/849] Effective number of exposures
29- 37 F9.5 deg RAdeg [0/360] Right Ascension, decimal degrees (J2000)
39- 46 F8.5 deg DEdeg [2.44/63.9] Declination, decimal degrees (J2000)
48- 49 A2 --- Type Eclipsing binary types (1)
51- 60 F10.7 d Per [0.18/95.1] Period
62- 65 I4 10-7d e_Per [0/1000] Uncertainty in Period
67- 77 F11.5 d t0 [55971/56609] Modified Heliocentric Julian Date of
t0; HJD-2400000.5
79- 84 F6.3 mag Imax [9.83/17.41] Maximum I-band magnitude outside
eclipses
86- 91 F6.3 mag Ipri [10.2/18.3] I-band magnitude, primary in one
eclipse
93- 98 F6.3 mag Isec [10.2/18.2] I-band magnitude, secondary, in one
eclipse
100-104 F5.3 --- Ratio [0.08/1] Depth ratio of the two eclipses
106-111 F6.3 kpc Dist [0.21/14.7]? Distance; section 3.1
113-117 F5.3 mag AVmag [0/9.87]? Extinction, V-band; section 3.1
119-124 F6.3 mag dmag [-0.68/1.12]? magnitude difference, 2MASS (2)
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Note (1): Eclipsing binary types as follows:
EA = Algol-type (1400 occurrences)
EB = βLyrae type (1458 occurrences)
EW = W Ursa Majoris type (4197 occurrences)
Note (2): Difference between the I-band magnitudes in the observational phase
and the maximum I-band magnitudes derived from single-epoch 2MASS data.
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Byte-by-byte Description of file: table2.dat
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Bytes Format Units Label Explanations
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1- 23 A23 --- KISO KISO System Identifier
25- 29 I5 K Teff1 [2423/11916] Effective temperature, primary
31- 35 I5 K Teff2 [2405/11913] Effective temperature, secondary
37- 41 F5.3 --- q [0.11/9.5] Mass ratio, m2/m1
43- 47 F5.3 Msun Mass1 [0.09/9.9] Mass, primary
49- 54 F6.3 Msun Mass2 [0.1/10.2] Mass, secondary
56- 60 F5.3 Rsun Rad1 [0.25/6.13] Radius, primary
62- 66 F5.3 Rsun Rad2 [0.21/6.22] Radius, secondary
68- 73 F6.3 mag Mbol1 [-5.86/7.31] Bolometric luminosity, primary
75- 80 F6.3 mag Mbol2 [-6.01/8.02] Bolometric luminosity, secondary
82- 86 F5.3 --- Lratio [0.04/1] Ratio of bandpass luminosities (1)
88- 93 F6.3 --- Omega [1.88/16.7] Potentials of both stars
95-100 F6.3 Rsun a [1.61/14.5] Length of the semi-major axis (2)
102-107 F6.3 deg i [50/90] Binary orbital inclination, in the plane
of the sky
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Note (1): Ratio of bandpass luminosities of the primary star to the total
bandpass luminosity.
Note (2): Length of the semi-major axis, in solar radii, of the relative orbit,
which is the sum of the two stars absolute semi-major axes, a=a1+a2.
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History:
From electronic version of the journal
(End) Prepared by [AAS], Coralie Fix [CDS], 23-Jun-2021