J/AJ/149/197 Minima of 10 Kepler eclipsing binaries (Zasche+, 2015)
Ten Kepler eclipsing binaries containing the third components.
Zasche P., Wolf M., Kucakova H., Vrastil J., Jurysek J., Masek M.,
Jelinek M.
<Astron. J., 149, 197 (2015)>
=2015AJ....149..197Z 2015AJ....149..197Z
ADC_Keywords: Binaries, eclipsing
Keywords: binaries: eclipsing - stars: fundamental parameters -
stars: individual: (KIC 2305372,KIC 3440230,KIC 5513861,KIC 5621294,
KIC 7630658,KIC 8553788,KIC 9007918,KIC 9402652,KIC 10581918,
KIC 10686876)
Abstract:
Analyzing the available photometry from the Kepler satellite and other
databases, we performed detailed light curve modeling of 10 eclipsing
binary systems that were found to exhibit a periodic modulation of
their orbital periods. All of the selected systems are detached Algol
type, with orbital periods from 0.9 to 2.9 days. In total, 9448 times
of minimum for these binaries were analyzed in an attempt to identify
the period variations caused by the third bodies in these systems. The
well-known method of the light-travel time effect was used for the
analysis. The orbital periods of the outer bodies were found to be
between 1 and 14 years. This hypothesis makes such systems interesting
for future prospective detections of these components, despite their
low predicted masses. Considering the dynamical interaction between
the orbits, the system KIC 3440230 seems to be the most interesting,
in which one would expect the detection of some effects (i.e.,
changing the inclination) even after a few years or decades of
observations.
Description:
All the studied systems were chosen according to their remarkable
variations in the O-C diagrams. Such systems naturally complete a set
of triple systems as presented by Gies et al. 2012 (cat. J/AJ/143/137)
and Conroy et al. 2014 (cat. J/AJ/147/45). However, these two
published studies only presented binaries in which the third-body
variations are visible in the Kepler data set, and those with longer
periodic modulation were omitted or only briefly mentioned. This is
the main impact of this paper.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 84 10 Relevant information for the analyzed systems
table3.dat 133 10 The parameters of the third-body orbits for the
individual systems
table5.dat 55 9448 List of the minimum timings used in the analysis
refs.dat 43 19 References
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See also:
B/gcvs : General Catalogue of Variable Stars (Samus+ 2007-2013)
VI/135 : All-sky spectrally matched Tycho2 stars (Pickles+, 2010)
V/133 : Kepler Input Catalog (Kepler Mission Team, 2009)
II/246 : 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)
J/A+A/572/A71 : Tlmes of minima for 18 SMC eclipsing binaries (Zasche, 2014)
J/AJ/147/45 : Kepler mission. IV. (Conroy+, 2014)
J/AJ/143/137 : Minima of eclipsing binaries from a Kepler survey (Gies+, 2012)
J/AJ/142/160 : Kepler Mission. II. 2165 eclipsing binaries (Slawson+, 2011)
J/AJ/128/1761 : HATNET variability survey (Hartman+, 2004)
http://archive.stsci.edu/kepler/data_search/search.php : Kepler catalog
http://keplerebs.villanova.edu/ : Kepler eclipsing binary catalog
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 3 A3 --- --- [KIC]
5- 12 I08 --- KIC Kepler Input Catalog number (cat. V/133)
14- 36 A23 --- OName Other name
38- 39 I2 h RAh Hour of Right Ascension (J2000)
41- 42 I2 min RAm Minute of Right Ascension (J2000)
44- 47 F4.1 s RAs Second of Right Ascension (J2000)
49 A1 --- DE- Sign of the Declination (J2000)
50- 51 I2 deg DEd Degree of Declination (J2000)
53- 54 I2 arcmin DEm Arcminute of Declination (J2000)
56- 59 F4.1 arcsec DEs Arcsecond of Declination (J2000)
61- 65 F5.2 mag Kpmag [11.6/13.9] Kepler magnitude (cat. V/133)
67 A1 --- f_J-H [*] Low quality 2MASS (J-H) color index (II/246)
68- 73 F6.3 mag J-H The 2MASS (J-H) color index (cat. II/246)
75- 79 F5.3 mag B-V ? The Tycho (B-V) color index (1)
81- 84 A4 --- SpT Spectral type
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Note (1): Based on the Tycho catalog (Pickles & Depagne 2010, cat. VI/135).
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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- 3 A3 --- --- [KIC]
5- 12 I08 --- KIC Kepler Input Catalog number (cat. V/133)
14- 22 F9.4 d HJD0 Periastron of 2-body ephemeride (HJD-2450000)
24- 29 F6.4 d e_HJD0 Error in HJD0
31- 39 F9.7 d Per [0.9/2.9] Period of 2-body ephemeride
41- 49 F9.7 d e_Per [2e-07/5e-06] Error in Period
51- 57 F7.5 d Amp [0/0.022] Semi-amplitude of the period variation
59- 65 F7.5 d e_Amp [0/0.002] Error in Amp
67- 71 F5.1 deg omega [0/360] Longitude of periastron ω
73- 76 F4.1 deg e_omega [1/29] Error in omega
78- 82 F5.2 yr Per3 [1/15] Period of the third body
84- 87 F4.2 yr e_Per3 [0.01/1.0] Error in Per3
89- 93 I5 d T0 Heliocentric Julian Date of 3rd body i
periastron passage T0 (HJD-2400000)
95- 97 I3 d e_T0 Error in T0
99-103 F5.3 --- e [0/1] Orbital eccentricity
105-109 F5.3 --- e_e [0.01/0.2] Error in eccentricity
111-118 F8.6 Msun f(m3) [1.4e-05/0.46] The third-body mass function (2)
120-127 F8.6 Msun e_f(m3) [2e-06/0.005] Error in f(m3)
129-133 I5 yr P3/P [137/40023] The Per32/Per ratio
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Note (2): the mass function is:
f(m3) = (m3sin(i))3/(m1+m2+m3)2
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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- 3 A3 --- --- [KIC]
5- 12 I08 --- KIC Kepler Input Catalog number (cat. V/133)
14- 24 F11.5 d BJD Barycentric Julian Date of minimum (BJD-2400000)
26- 32 F7.5 d e_BJD ? Error of BJD
34- 37 A4 --- Min Type of minimum (primary or secondary)
39- 42 A4 --- Flt Filter used (C, V, R, I, K, W, pg, vis) (1)
44- 52 A9 --- Obs Source of observation (2)
54- 55 I2 --- Ref ? Reference; in refs.dat file
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Note (1): Non-standard filter codes:
vis = visual observation:
pg = photographic;
K = Special filters used for Kepler;
W = Special filter used for SuperWASP.
Note (2): The catalog, observatory or telescope codes are defined as follows:
ASAS = All Sky Automated Survey (Pojmanski et al. 2002, cat. II/264;
Pigulski et al. 2009, cat. J/AcA/59/33);
BOO-1 = BOOTES-1A robotic telescope (in Spain);
BOO-2 = BOOTES-2 robotic telescope (in Spain);
GCVS = General Catalog of Variable Stars (Samus et al. 2012,
cat. B/gcvs; Version 2012-Feb);
Hatnet = HATNET variability survey (Hartman et al. 2004,
cat. J/AJ/128/1761);
Kepler = Kepler satellite (Borucki et al., 2010Sci...327..977B 2010Sci...327..977B);
Kepler SC = Kepler Short Cadance observations;
NSVS = Northern Sky Variability Survey (Wozniak et al.,
2004AJ....127.2436W 2004AJ....127.2436W);
OND = ONDrejov Observatory (in the Czech Republic);
SuperWASP = Wide Angle Search for Planets (Pollacco et al.,
2006PASP..118.1407P 2006PASP..118.1407P;
TRES = Trans-atlantic Exoplanet Survey (Borucki et al.,
2008AJ....135..850D 2008AJ....135..850D).
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Byte-by-byte Description of file: refs.dat
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Bytes Format Units Label Explanations
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1- 2 I2 --- Ref Reference number
4- 22 A19 --- BibCode Bibliographic code
24- 43 A20 --- Aut Author's name
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History:
From electronic version of the journal
(End) Greg Schwarz [AAS], Sylvain Guehenneux [CDS] 12-Jun-2015