J/MNRAS/468/1726 HIDES. II. Double- and triple-lined objects (Helminiak+, 2017)
HIDES spectroscopy of bright detached eclipsing binaries from the Kepler field.
II. Double- and triple-lined objects.
Helminiak K.G., Ukita N., Kambe E., Kozlowski S.K., Sybilski P.,
Maehara H., Ratajczak M., Konacki M., Pawlaszek R.K.
<Mon. Not. R. Astron. Soc., 468, 1726-1746 (2017)>
=2017MNRAS.468.1726H 2017MNRAS.468.1726H (SIMBAD/NED BibCode)
ADC_Keywords: Binaries, eclipsing ; Radial velocities
Keywords: binaries: eclipsing - binaries: spectroscopic - stars: evolution -
stars: fundamental parameters -
stars: individual: KIC 06525196, KIC 07821010, KIC 08552540,
KIC 09641031, KIC 10031808, KIC 10191056, KIC 10987439, KIC 11922782 -
stars: late-type
Abstract:
We present the results of our spectroscopic observations of eight
detached eclipsing binaries (DEBs), selected from the Kepler Eclipsing
Binary Catalog. Radial velocities (RVs) were calculated from
high-resolution spectra obtained with the HIgh-Dispersion Echelle
Spectrograph (HIDES) spectrograph, attached to the 1.88-m telescope of
the Okayama Astrophysical Observatory, and were used to characterize
the targets in combination with the Kepler light curves. For each
binary, we obtained a full set of orbital and physical parameters,
reaching precision below 3 per cent in masses and radii for five
pairs. By comparing our results with theoretical models, we assess the
distance, age and evolutionary status of the researched objects. We
also study eclipse timing variations of selected objects, and identify
a new system with a γ Dor pulsator. Two systems are triples, and
show lines coming from three components. In one case, the motion of
the outer star and the perturbation in the RVs of the inner binary are
clearly visible and periodical, which allows us to directly calculate
the mass of the third star and inclination of the outer orbit. In the
second case, we only see a clear motion of the tertiary and
investigate two scenarios: that it is a linear trend coming from the
orbital motion around the inner binary and that it is caused by a
planetary mass companion. When possible, we also compare our results
with the literature, and conclude that only by combining photometry
with RVs, it is possible to obtain correct physical parameters of both
components of a DEB.
Description:
Targets were selected from the Kepler Eclipsing Binaries Catalog
(KEBC; Prsa et al. 2011, Cat. J/AJ/141/83; Slawson et al. 2011, Cat.
J/AJ/142/160; Kirk et al. 2016, Cat. J/AJ/151/68)
(http://keplerebs.villanova.edu/).
The spectroscopic observations were carried out during several runs
between 2014 July and 2016 October, at the 1.88-m telescope of the
Okayama Astrophysical Observatory (OAO) with HIDES (R∼50000).
File Summary:
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FileName Lrecl Records Explanations
--------------------------------------------------------------------------------
ReadMe 80 . This file
table1.dat 90 8 The KEBC information about the observed targets
and their character
tablea1.dat 67 115 HIDES radial velocities
tableb1.dat 39 505 The Ecliptic Time Variations used in this work
(KIC 6525196, KIC 9641031 and KIC 10191056)
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See also:
V/133 : Kepler Input Catalog (Kepler Mission Team, 2009)
J/MNRAS/461/2896 : HIDES. I. Single-lined objects (Helminiak+, 2016)
Byte-by-byte Description of file: table1.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 8 I8 --- KIC Star KIC number
10- 13 I4 --- KOI KOI
15- 31 A17 --- OName Other name(s)
33- 40 F8.4 deg RAdeg Right ascension (J2000)
42- 48 F7.4 deg DEdeg Declination (J2000)
50- 59 F10.7 d Per Period, for the eclipsing binary, where T0 is
the primary eclipse mid-time
61- 71 F11.6 d T0 Primary eclipse mid-time for eclipsing binaries
(BJD-2450000)
73- 76 I4 K Teff ?=- Effective temperature
77 A1 --- n_Teff [c] c: No temperature given in the KEBC
79- 84 F6.3 mag kepmag Kepler magnitude
86- 88 A3 --- Third [Yes -] Yes if lines from a third star are seen
90 A1 --- TB1 [*] * if ETVs in tableb1.dat
--------------------------------------------------------------------------------
Byte-by-byte Description of file: tablea1.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 11 F11.6 d BJD Barycentric Julian date (BJD-2450000)
16- 23 F8.3 km/s RV1 Radial velocity of the primary (1)
25- 29 F5.3 km/s e_RV1 rms uncertainty on RV1
31- 38 F8.3 km/s RV2 ? Radial velocity of the secondary (1)
40- 44 F5.3 km/s e_RV2 ? rms uncertainty on RV1
47- 54 I8 --- KIC Star KIC number
56- 57 A2 --- n_KIC Multiplicity index on KIC
60- 63 I4 s Texp Exposure time
65- 67 I3 --- S/N Signa-to-noise ratio
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Note (1): Both KIC 06525196 and 10191056 have been treated as two SB2s, and the
systemic velocities of their inner pairs are given in RV1.
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Byte-by-byte Description of file: tableb1.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 11 F11.6 d BJD Barycentric Julian date (BJD-2450000)
17- 22 F6.1 s tau Eclipse timing variation
25- 28 F4.1 s e_tau rms uncertainty on tau
32- 39 I8 --- KIC Star KIC number
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History:
From electronic version of the journal
References:
Helminiak et al., Paper I 2016MNRAS.461.2896H 2016MNRAS.461.2896H, Cat. J/MNRAS/461/2896
(End) Patricia Vannier [CDS] 13-Dec-2019