J/ApJS/217/18 Potential transit signals in Kepler Q1-Q17 (Seader+, 2015)
Detection of potential transit signals in 17 quarters of Kepler mission data.
Seader S., Jenkins J.M., Tenenbaum P., Twicken J.D., Smith J.C., Morris R.,
Catanzarite J., Clarke B.D., Li J., Cote M.T., Burke C.J., McCauliff S.,
Girouard F.R., Campbell J.R., Uddin A.K., Zamudio K.A., Sabale A.,
Henze C.E., Thompson S.E., Klaus T.C.
<Astrophys. J. Suppl. Ser., 217, 18 (2015)>
=2015ApJS..217...18S 2015ApJS..217...18S
ADC_Keywords: Planets ; Stars, double and multiple
Mission_Name: Kepler
Keywords: planetary systems; planets and satellites: detection
Abstract:
We present the results of a search for potential transit signals in
the full 17-quarter data set collected during Kepler's primary mission
that ended on 2013 May 11, due to the on board failure of a second
reaction wheel needed to maintain high precision, fixed, pointing. The
search includes a total of 198646 targets, of which 112001 were
observed in every quarter and 86645 were observed in a subset of the
17 quarters. For the first time, this multi-quarter search is
performed on data that have been fully and uniformly reprocessed
through the newly released version of the Data Processing Pipeline. We
find a total of 12669 targets that contain at least one signal that
meets our detection criteria: periodicity of the signal, a minimum of
three transit events, an acceptable signal-to-noise ratio, and four
consistency tests that suppress many false positives. Each target
containing at least one transit-like pulse sequence is searched
repeatedly for other signals that meet the detection criteria,
indicating a multiple planet system. This multiple planet search adds
an additional 7698 transit-like signatures for a total of 20367.
Comparison of this set of detected signals with a set of known and
vetted transiting planet signatures in the Kepler field of view shows
that the recovery rate of the search is 90.3%. We review ensemble
properties of the detected signals and present various metrics useful
in validating these potential planetary signals. We highlight
previously undetected transit-like signatures, including several that
may represent small objects in the habitable zone of their host stars.
Description:
Kepler science data acquisition of Quarter 1 began at 2009-05-13
00:01:07Z, and acquisition of Quarter 17 data concluded at 2013-05-11
12:16:22Z.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 57 1678 *Golden KOI and Threshold Crossing Event (TCE)
matching results
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Note on table1.dat: The list of Q1-Q12, and Q1-Q16 KOIs has been analyzed and a
set of high-quality "golden KOIs" identified for comparison to the Q1-Q17
TCEs. This subset of the full KOI list is a representative cross-section of
all KOIs in the parameters of transit depth, S/N, and period. It builds upon
the list used in Tenenbaum et al. (2014ApJS..211....6T 2014ApJS..211....6T) but also now excludes
those KOIs that are labeled as false positives at the NASA Exoplanet Archive.
See section 3.1.
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See also:
J/ApJS/217/16 : Kepler planetary candidates. V. 3yr Q1-Q12 (Rowe+, 2015)
J/AJ/147/119 : Sources in the Kepler field of view (Coughlin+, 2014)
J/ApJS/211/2 : Revised properties of Q1-16 Kepler targets (Huber+, 2014)
J/ApJS/210/19 : Kepler planetary candidates. IV. 22 months (Burke+, 2014)
J/ApJS/207/35 : Kepler pipeline signal-to-noise studies (Christiansen+, 2013)
J/ApJS/204/24 : Kepler planetary candidates. III. (Batalha+, 2013)
J/ApJS/199/24 : The first three quarters of Kepler mission (Tenenbaum+, 2012)
J/AJ/142/160 : Kepler Mission. II. 2165 eclipsing binaries (Slawson+, 2011)
J/ApJ/736/19 : Kepler planetary candidates. II. (Borucki+, 2011)
J/A+A/529/A75 : Limb-darkening coefficients (Claret+, 2011)
J/AJ/141/83 : Eclipsing binaries in Kepler first data release (Prsa+, 2011)
J/A+A/363/1081 : Non-linear limb-darkening law for LTE models (Claret, 2000)
http://exoplanetarchive.ipac.caltech.edu/ : NASA exoplanet archive
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- 8 I8 --- KIC Kepler Input Catalog identifier (V/133)
10- 16 F7.2 --- KOI [5.01/6251.01] Kepler Object of Interest number
18- 25 F8.4 d Per [0.4/551] Kepler Object of Interest Period
27- 34 F8.4 d Ptce [0.5/551]? Threshold Crossing Event Period
36- 43 F8.4 d Ep Kepler Object of Interest Epoch (1)
45- 52 F8.4 d Ep.tce ? Threshold Crossing Event Epoch (1)
54- 57 F4.2 --- Match [0/1]? Ephemeris Match (2)
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Note (1): In Barycentric Kepler Julian Date, BJD-2454833.0
Christiansen et al. (2013, J/ApJS/207/35 and KSCI-19040-004).
Note (2): A value of "1.0" indicates that each transit predicted by one
ephemeris corresponds to a transit predicted by the other, to within
a half of a transit duration (Tenenbaum et al. 2013ApJS..206....5T 2013ApJS..206....5T).
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History:
From electronic version of the journal
References:
Tenenbaum et al. First 3 quarters 2012ApJS..199...24T 2012ApJS..199...24T Cat. J/ApJS/199/24
Tenenbaum et al. First 12 quarters 2013ApJS..206....5T 2013ApJS..206....5T
Tenenbaum et al. First 16 quarters 2014ApJS..211....6T 2014ApJS..211....6T
(End) Greg Schwarz [AAS], Emmanuelle Perret [CDS] 17-Apr-2015