TRANSIT TIMING OBSERVATIONS FROM KEPLER . VIII. CATALOG OF TRANSIT TIMING MEASUREMENTS OF THE FIRST TWELVE QUARTERS
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Mazeh-2013-TRANSIT TIMING OBSER.pdf
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2.5 MB
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Adobe PDF
Checksum (MD5)
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Author(s)
Mazeh, Tsevi
Nachmani, Gil
Holczer, Tomer
Fabrycky, Daniel C.
Ford, Eric B.
Sokol, Gil
Rowe, Jason F.
Zucker, Shay
Agol, Eric
Carter, Joshua Adam
Date Issued
September 2013
Journal
Astrophysical Journal. Supplement Series
Publisher
IOP Publishing
Citation
Mazeh, Tsevi, Gil Nachmani, Tomer Holczer, Daniel C. Fabrycky, Eric B. Ford, Roberto Sanchis-Ojeda, Gil Sokol, et al. “TRANSIT TIMING OBSERVATIONS FROM KEPLER . VIII. CATALOG OF TRANSIT TIMING MEASUREMENTS OF THE FIRST TWELVE QUARTERS.” The Astrophysical Journal Supplement Series 208, no. 2 (September 12, 2013): 16. © 2013 The American Astronomical Society
Version
Final published version
Abstract
Following the works of Ford et al. and Steffen et al. we derived the transit timing of 1960 Kepler objects of interest (KOIs) using the pre-search data conditioning light curves of the first twelve quarters of the Kepler data. For 721 KOIs with large enough signal-to-noise ratios, we obtained also the duration and depth of each transit. The results are presented as a catalog for the community to use. We derived a few statistics of our results that could be used to indicate significant variations. Including systems found by previous works, we have found 130 KOIs that showed highly significant times of transit variations (TTVs) and 13 that had short-period TTV modulations with small amplitudes. We consider two effects that could cause apparent periodic TTV—the finite sampling of the observations and the interference with the stellar activity, stellar spots in particular. We briefly discuss some statistical aspects of our detected TTVs. We show that the TTV period is correlated with the orbital period of the planet and with the TTV amplitude.
MIT Department
Massachusetts Institute of Technology. Department of Physics
MIT Kavli Institute for Astrophysics and Space Research
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DOI of Published Version
https://doi.org/10.1088/0067-0049/208/2/16
