J/other/RAA/19.41 TTVs & linear ephemerides of Kepler exoplanets (Gajdos+, 2019)
Transit timing variations and linear ephemerides of confirmed Kepler
transiting exoplanets.
Gajdos P., Vanko M., Parimucha S.
<Res. Astron. Astrophys., 19, 41 (2019)>
=2019RAA....19...41G 2019RAA....19...41G (SIMBAD/NED BibCode)
ADC_Keywords: Stars, double and multiple ; Exoplanets
Keywords: stars: planetary systems - eclipses - techniques: photometric
Abstract:
We determined new linear ephemerides of transiting exoplanets using
long-cadence de-trended data from quarters Q1 to Q17 of Kepler
mission. We analysed TTV diagrams of 2098 extrasolar planets. The TTVs
of 121 objects were excluded (because of insufficient data-points,
influence of stellar activity, etc). Finally, new linear ephemerides
of 1977 exoplanets from Kepler archive are presented. The significant
linear trend was observed on TTV diagrams of approximately 35% of
studied exoplanets. Knowing correct linear ephemeris is principal for
successful follow-up observations of transits. Residual TTV diagrams
of 64 analysed exoplanets shows periodic variation, 43 of these TTV
planets were not reported yet.
Description:
The new linear ephemerides of Kepler exoplanets. Period and amplitudes
of found transit-timing variations (TTV).
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 116 1977 Linear ephemerides
table2.dat 54 64 Periods and amplitudes of found TTV
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See also:
V/133 : Kepler Input Catalog (Kepler Mission Team, 2009)
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 13 A13 --- Name Common name
15- 21 F7.2 --- KOI Kepler Object of Interest
23- 30 I8 --- KIC Kepler Input Catalog
32- 46 F15.11 d Per Orbital period
48- 59 F12.10 d e_Per Error of period
61- 76 F16.8 d T0 Initial time of transit (BJD)
78- 87 F10.8 d e_T0 Error of T0 (BJD)
89- 99 F11.3 --- chi2 Chi2 error of fitting
101-109 F9.4 --- chi2/n Chi2/n error
111-114 I4 --- N Number of data points in TTV diagram
116 I1 --- Note [1/3] Changes of residual TTV (1)
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Note (1): Changes of residual TTV code as follows:
1 = no significant changes
2 = periodic or quasi-periodic variations
3 = chaotic variations
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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- 13 A13 --- Name Common name
15- 21 F7.2 --- KOI Kepler Object of Interest
23- 30 I8 --- KIC Kepler Input Catalog
32- 37 F6.1 d PerTTV Period of TTV
39- 43 F5.1 d e_PerTTV Error of TTV period
45- 49 F5.1 min AmpTTV Ampitude of TTV
51- 54 F4.1 min e_AmpTTV Error of TTV amplitude
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Acknowledgements:
Pavol Gajdos, pavol.gajdos(at)student.upjs.sk
(End) Patricia Vannier [CDS] 25-Feb-2019