J/ApJ/756/186 TTVs from Kepler. VI. Statistical tests (Steffen+, 2012)
Transit timing observations from Kepler.
VI. Potentially interesting candidate systems from Fourier-based statistical
tests.
Steffen J.H., Ford E.B., Rowe J.F., Fabrycky D.C., Holman M.J., Welsh W.F.,
Batalha N.M., Borucki W.J., Bryson S., Caldwell D.A., Ciardi D.R.,
Jenkins J.M., Kjeldsen H., Koch D.G., Prsa A., Sanderfer D.T., Seader S.,
Twicken J.D.
<Astrophys. J., 756, 186 (2012)>
=2012ApJ...756..186S 2012ApJ...756..186S
ADC_Keywords: Stars, double and multiple ; Planets
Keywords: planetary systems; planets and satellites: detection;
planets and satellites: dynamical evolution and stability;
techniques: miscellaneous
Abstract:
We analyze the deviations of transit times from a linear ephemeris for
the Kepler Objects of Interest (KOI) through quarter six of science
data. We conduct two statistical tests for all KOIs and a related
statistical test for all pairs of KOIs in multi-transiting systems.
These tests identify several systems which show potentially
interesting transit timing variations (TTVs). Strong TTV systems have
been valuable for the confirmation of planets and their mass
measurements. Many of the systems identified in this study should
prove fruitful for detailed TTV studies.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 50 1009 Period, number of transits, the results of the SNR
of the best-fit sinusoidal amplitude, the p-value
for the F-ratio test, and Ξmax for each KOI
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See also:
J/ApJS/210/19 : Kepler planetary candidates. IV. 22 months (Burke+, 2014)
J/ApJ/784/45 : Kepler's multiple planet candidates. III. (Rowe+, 2014)
J/ApJS/208/16 : Kepler transit timing observations. VIII. (Mazeh+, 2013)
J/ApJS/204/24 : Kepler planetary candidates. III. (Batalha+, 2013)
J/A+A/555/A58 : New Kepler planetary candidates (Ofir+, 2013)
J/ApJ/750/114 : Kepler TTVs. IV. 4 multiple-planet systems (Fabrycky+, 2012)
J/ApJ/750/113 : Kepler TTVs. II. Confirmed multiplanet systems (Ford+, 2012)
J/MNRAS/421/2342 : 4 Kepler systems transit timing obs. (Steffen+, 2012)
J/A+A/536/L9 : Detections of transit variations in KOI 806 (Tingley+, 2011)
J/ApJS/197/2 : Transit timing observations from Kepler. I. (Ford+, 2011)
J/ApJ/736/19 : Kepler planetary candidates. II. (Borucki+, 2011)
http://archive.stsci.edu/kepler/ : MAST Kepler home page
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 7 F7.2 --- KOI KOI identifier
9- 14 F6.3 d Per [0.3/96.7] Period of the transit
16- 19 I4 --- Nt [6/1160] Number of transits
21- 27 F7.3 --- SNR [1.6/262.6] Signal-to-Noise ratio
29- 41 F13.11 --- p-value [0/0.5] The p-value of the F-ratio test
43- 50 F8.3 --- Ximax [-0.005/1756]? The Ξmax statistic (1)
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Note (1): The maximum value that Ξ has for a given candidate pair, Ξmax,
is the statistic we choose to determine the significance of any
interaction between the two objects. The square root of Ξmax is
approximately the significance in terms of σ for Gaussian
deviates, though we note that an accurate determination of the
significance is best done via a Monte Carlo simulation. See section 4.
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History:
From electronic version of the journal
References:
Ford et al. Paper I. 2011ApJS..197....2F 2011ApJS..197....2F Cat. J/ApJS/197/2
Ford et al. Paper II. 2012ApJ...750..113F 2012ApJ...750..113F Cat. J/ApJ/750/113
Steffen et al. Paper III. 2012MNRAS.421.2342S 2012MNRAS.421.2342S Cat. J/MNRAS/421/2342
Fabrycky et al. Paper IV. 2012ApJ...750..114F 2012ApJ...750..114F Cat. J/ApJ/750/114
Ford et al. Paper V. 2012ApJ...756..185F 2012ApJ...756..185F Cat. J/ApJ/756/185
Steffen et al. Paper VII. 2013MNRAS.428.1077S 2013MNRAS.428.1077S
Mazeh et al. Paper VIII. 2013ApJS..208...16M 2013ApJS..208...16M Cat. J/ApJS/208/16
(End) Greg Schwarz [AAS], Emmanuelle Perret [CDS] 16-May-2014