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Multiple Transits during a Single Conjunction: Identifying Transiting Circumbinary Planetary Candidates from TESS

Authors :
Tsevi Mazeh
Eric Agol
Gongjie Li
Sean M. Mills
Nader Haghighipour
William F. Welsh
Daniel C. Fabrycky
Billy Quarles
David V. Martin
Laurance R. Doyle
Veselin B. Kostov
Jerome A. Orosz
Brian P. Powell
Publication Year :
2020
Publisher :
American Astronomical Society, 2020.

Abstract

We present results of a study on identifying circumbinary planet candidates that produce multiple transits during one conjunction with eclipsing binary systems. The occurrence of these transits enables us to estimate the candidates' orbital periods, which is crucial as the periods of the currently known transiting circumbinary planets are significantly longer than the typical observational baseline of TESS. Combined with the derived radii, it also provides valuable information needed for follow-up observations and subsequent confirmation of a large number of circumbinary planet candidates from TESS. Motivated by the discovery of the 1108-day circumbinary planet Kepler-1647, we show the application of this technique to four of Kepler's circumbinary planets that produce such transits. Our results indicate that in systems where the circumbinary planet is on a low-eccentricity orbit, the estimated planetary orbital period is within<br />16 pages, 6 figures, 2 tables, AJ accepted

Details

Language :
English
Database :
OpenAIRE
Accession number :
edsair.doi.dedup.....f26e537e22bf609a8d23dcbc40519f9f