J/AJ/154/105 Parameters of 529 Kepler eclipsing binaries (Kjurkchieva+, 2017)
Orbital parameters of the eclipsing detached Kepler binaries with eccentric
orbits.
Kjurkchieva D., Vasileva D., Atanasova T.
<Astron. J., 154, 105-105 (2017)>
=2017AJ....154..105K 2017AJ....154..105K (SIMBAD/NED BibCode)
ADC_Keywords: Binaries, eclipsing ; Binaries, orbits ; Effective temperatures ;
Stars, masses ; Stars, diameters
Keywords: binaries: eclipsing - stars: fundamental parameters -
stars: solar-type - surveys
Abstract:
We present precise values of the eccentricity and periastron angle of
529 detached, eccentric, eclipsing stars from the Kepler Eclipsing
Binary catalog that were determined by modeling their long cadence
data. The temperatures and relative radii of their components as well
as their mass ratios were calculated based on approximate values of
the empirical relations of MS stars. Around one-third of the secondary
components were revealed to be very late dwarfs, some of them possible
brown dwarf candidates. Most of our targets fall below the envelope
P(1-e2)3/2=5days. The (e,P) distribution of the known eccentric
binaries exhibits a rough trend of increasing eccentricity with the
period. The prolonged and continuous Kepler observations allowed us to
identify 60 new highly eccentric targets with e>0.5.
Description:
We reviewed the Kepler eclipsing binary catalog (Prsa et al. 2011,
Cat. J/AJ/141/83; Slawson et al. 2011, Cat. J/AJ/142/160; Matijevic et
al. 2012) to search for detached eclipsing binaries with eccentric
orbits.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 99 529 *Information about the targets from the Eclipsing
Binary (EB) catalog
table2.dat 54 529 *Stellar and orbital parameters of the targets
table3.dat 33 3 Comparison with orbital parameters of Helminiak
et al. (2016MNRAS.461.2896H 2016MNRAS.461.2896H)
table4.dat 36 21 Comparison with orbital parameters of Borkovits
et al. (2015MNRAS.448..946B 2015MNRAS.448..946B)
table5.dat 92 9 Orbital parameters of eclipsing binary stars with
transiting circumbinary planet
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Note on table1.dat,table2.dat: The Kepler eclipsing binary catalog (Prsa et al.
2011, Cat. J/AJ/141/83; Slawson et al. 2011, Cat. J/AJ/142/160; Matijevic et
al. 2012AJ....143..123M 2012AJ....143..123M).
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See also:
B/sb9 : 9th Catalogue of Spectroscopic Binary Orbits (Pourbaix+ 2004-2014)
V/133 : Kepler Input Catalog (Kepler Mission Team, 2009)
V/118 : Catalog of eclipsing binaries parameters (Perevozkina+, 1999)
J/ApJ/832/121 : 4-yr RV survey of red giant in EBs (Gaulme+, 2016)
J/ApJ/824/15 : Orbital circularization of Kepler EBs (Van Eylen+, 2016)
J/AJ/151/68 : Kepler Mission. VII. Eclipsing binaries in DR3 (Kirk+, 2016)
J/A+A/563/A59 : KIC 3858884: list of pulsation frequencies (Maceroni+, 2014)
J/AJ/142/160 : Kepler Mission. II. (Slawson+, 2011)
J/AJ/141/83 : Kepler Mission. I. Eclipsing binaries in DR1 (Prsa+, 2011)
J/AJ/141/78 : Low-mass eclipsing binaries in KIC (Coughlin+, 2011)
J/MNRAS/378/179 : Eclipsing Binary with Eccentric Orbits Catalog (Bulut+, 2007)
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 8 I8 --- KIC [1026032/12644769] Kepler Input Catalog identifier
10- 21 F12.7 d Per [1.2/1087.3] Period
23- 34 F12.6 d T0 [5487.3/55733.8] Initial epoch T0 (BJD-2400000)
36- 45 F10.4 mag Kpmag [7.3/18.4] Kepler magnitude (Km)
47- 50 I4 K Teff [3717/9224]? Target effective temperature (Teff)
52 A1 --- f_Teff [B] Flag on Teff (B=Binary with unknown Teff)
54- 59 F6.4 --- w1 [0/0.6] First eclipse width, in phase units (w1)
61 A1 --- f_w1 [1] Flag on w1 (1=value derived first by us)
63- 68 F6.4 --- w2 [0/0.19] Second eclipse width, in phase units
(w2)
70 A1 --- f_w2 [1] Flag on w2 (1=value derived first by us)
72- 77 F6.4 --- d1 [0/1] First eclipse depth, in relative flux units
(d1)
79 A1 --- f_d1 [1] Flag on d1 (1=value derived first by us)
81- 87 F7.5 --- d2 [0/0.42] Second eclipse depth, in relative flux
units (d2)
89 A1 --- f_d2 [1] Flag on d2 (1=value derived first by us)
91- 97 F7.5 --- Phase2 [0.03/0.96] Secondary eclipse phase (φ2) (1)
99 A1 --- f_Phase2 [1] Flag on Phase2 (1=value derived first by us)
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Note (1): It is assumed φ1=0.
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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- 8 I8 --- KIC [1026032/12644769] Kepler Input Catalog identifier
10- 13 I4 K Teff1 [3717/9224] Effective temperature of primary
(T1) (2)
15 A1 --- f_Teff1 [B] Flag on Teff1 (B=Binary with unknown Teff) (3)
17- 20 I4 K Teff2 [2039/7805] Effective temperature of secondary
(T2) (4)
22- 27 F6.4 --- q [0.18/1.4] Mass ratio (4)
29- 34 F6.4 --- r1 [0/0.96] Stellar radii of primary in relative
units (r1) (4)
36- 41 F6.4 --- r2 [0/0.91] Stellar radii of secondary in relative
units (r2) (4)
43- 47 F5.3 --- e [0.001/0.85] Orbital eccentricity (4)
49- 54 F6.2 deg omega Periastron angle ω (4)
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Note (2): We used the available target temperatures Teff (Table1) from the
Kepler Input Catalog (Kepler Mission Team 2009, Cat. V/133) and adopted
T1=Teff.
Note (3): We assumed the mean (solar) value of 5800K for the primary.
Note (4):
Based on the assumption that the stellar components are MS stars, we
calculated approximate values of their parameters from empirical relations
(Ivanov et al. 2010BASI...38...83I 2010BASI...38...83I):
Secondary temperature T2=T1(d2/d1)1/4,
Mass ratio q=(T2/T1)1.7,
Ratio of relative radii k=r2/r1=q0.75.
From the last formula and the approximate expression for narrow eclipses
r1+r2~π. Eq. (3).
( is the mean eclipse width from Table1) we derived approximate values
of relative stellar radii:
r1=π/(1+k) r2=[π/(1+k)]k. Eq. (4).
The calculated values of T2, q, r1, and r2 were used as fixed
parameters for PHOEBE ((Prsa & Zwitter 2005ApJ...628..426P 2005ApJ...628..426P) while the
calculated values e0 and ω0 were used as input parameters. The
orbital inclination i was fixed to correspond approximately to the
individual eclipse depths. By varying e and ω around e0 and
ω0 as well as "phase shift" we searched for the perfect coincidence
of the phases of eclipses.
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Byte-by-byte Description of file: table3.dat
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Bytes Format Units Label Explanations
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1- 8 I8 --- KIC [3120320/10001167] Kepler Input Catalog identifier
10- 14 F5.3 --- eH [0.034/0.26] Orbital eccentricity, Helminiak
et al. 2016MNRAS.461.2896H 2016MNRAS.461.2896H (eH)
16- 20 F5.1 deg omegaH [213/350.5] Periastron angle, Helminiak et al.
2016MNRAS.461.2896H 2016MNRAS.461.2896H (ωH)
22- 26 F5.3 --- e [0.049/0.26] Orbital eccentricity, this paper
(eour)
28- 33 F6.2 deg omega [28.5/168.8] Periastron angle, this paper
(ωour)
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Byte-by-byte Description of file: table4.dat
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Bytes Format Units Label Explanations
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1- 8 I8 --- KIC [4940201/12356914] Kepler Input Catalog
identifier
10- 14 F5.3 --- eB [0.001/0.42] Orbital eccentricity, Borkovits
et al. 2015MNRAS.448..946B 2015MNRAS.448..946B (eB)
16- 18 I3 deg omB0 [106/359] Lower value of periastron angle
range, Borkovits et al. 2015MNRAS.448..946B 2015MNRAS.448..946B
(ωB)
19 A1 --- --- [-]
20- 22 I3 deg omB1 [108/457]? Upper value of periastron angle
range, Borkovits et al. 2015MNRAS.448..946B 2015MNRAS.448..946B
(ωB)
24- 29 F6.4 --- e [0.0025/0.44] Orbital eccentricity, this paper
(eour)
31- 36 F6.2 deg omega [14.1/346.6] Periastron angle, this paper
(ωour)
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Byte-by-byte Description of file: table5.dat
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Bytes Format Units Label Explanations
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1- 8 I8 --- KIC [4862625/12644769] Kepler Input Catalog identifier
10- 20 A11 --- Kepler Kepler name, star with transiting circumbinary
planet(s)
22- 26 F5.3 --- eP [0.02/0.53] Previous orbital eccentricity (epr)
28- 33 F6.2 deg omegaP [89.1/300.9] Previous periastron angle
(ωpr)
35- 79 A45 --- Ref Reference for previous eccentricity &
periastron angle
81- 85 F5.3 --- e [0.04/0.6] Orbital eccentricity, this paper
(eour)
87- 92 F6.2 deg omega [53/266.5] Periastron angle, this paper
(ωour)
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History:
From electronic version of the journal
(End) Prepared by [AAS]; Sylvain Guehenneux [CDS] 20-Nov-2017