A STUDY OF THE SHORTEST-PERIOD PLANETS FOUND WITH KEPLER

We present the results of a survey aimed at discovering and studying transiting planets with orbital periods shorter than one day (ultra-short-period, or USP, planets), using data from the Kepler spacecraft. We computed Fourier transforms of the photometric time series for all 200,000 target stars,...

Full description

Saved in:
Bibliographic Details
Published inThe Astrophysical journal Vol. 787; no. 1; pp. 47 - 18
Main Authors Sanchis-Ojeda, Roberto, Rappaport, Saul, Winn, Joshua N., Kotson, Michael C., Levine, Alan, Mellah, Ileyk El
Format Journal Article
LanguageEnglish
Published United States 20.05.2014
Subjects
APPROXIMATIONS
ASTROPHYSICS, COSMOLOGY AND ASTRONOMY
DETECTION
DWARF STARS
ECLIPSE
Extrasolar planets
Fourier analysis
FOURIER TRANSFORMATION
Fourier transforms
IRRADIATION
JUPITER PLANET
ORBITS
Planets
SATELLITE ATMOSPHERES
SATELLITES
SPACE
SPACE VEHICLES
Spacecraft
SPECTRA
Stellar systems
Time series
Online AccessGet full text

Cover

More Information
Summary:We present the results of a survey aimed at discovering and studying transiting planets with orbital periods shorter than one day (ultra-short-period, or USP, planets), using data from the Kepler spacecraft. We computed Fourier transforms of the photometric time series for all 200,000 target stars, and detected transit signals based on the presence of regularly spaced sharp peaks in the Fourier spectrum. We present a list of 106 USP candidates, of which 18 have not previously been described in the literature. All 106 of our candidates have passed several standard tests to rule out false positives due to eclipsing stellar systems. By assuming these multi-transit candidates represent coplanar multi-planet systems, we are able to infer that the USP planets are typically accompanied by other planets with periods in the range 1-50 days, in contrast with hot Jupiters which very rarely have companions in that same period range.
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ISSN:0004-637X
1538-4357
DOI:10.1088/0004-637X/787/1/47