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By design, model-based approaches for flagging transiting exoplanets in light curves, such as boxed least squares, excel at detecting planets with low S/N at the expense of finding signals that are not well described by the assumed model,…

Earth and Planetary Astrophysics · Physics 2019-03-28 Adam Wheeler , David Kipping

We have systematically searched for the phase curves among the planets discovered by \textit{K2}. Using the reported planetary parameters, we screen out the best potential candidates, and examine their light curves in detail. For our work,…

Earth and Planetary Astrophysics · Physics 2019-03-08 Prajwal Niraula , Seth Redfield , Julien de Wit , Fei Dai , Ismael Mireles , Dilovan Serindag , Avi Shporer

(abridged) We identify 3 Kepler transiting planets, Kepler-7b, Kepler-12b, and Kepler-41b, whose orbital phase-folded light curves are dominated by planetary atmospheric processes including thermal emission and reflected light, while the…

Solar and Stellar Astrophysics · Physics 2015-09-23 Avi Shporer , Renyu Hu

Kepler will monitor a sufficient number of stars that it is likely to detect single transits of planets with periods longer than the mission lifetime. We show that by combining the exquisite Kepler photometry of such transits with precise…

Astrophysics · Physics 2009-11-13 Jennifer C. Yee , B. Scott Gaudi

We present a comprehensive catalog of cool (period $P\gtrsim 2\,\mathrm{yr}$) transiting planet candidates in the four-year light curves from the prime \kepler\ mission. Most of the candidates show only one or two transits and have largely…

Earth and Planetary Astrophysics · Physics 2019-05-15 Hajime Kawahara , Kento Masuda

The false-positive probability (FPP) of Kepler transiting candidates is a key value for statistical studies of candidate properties. A previous investigation of the stellar population in the Kepler field has provided an estimate for the FPP…

Earth and Planetary Astrophysics · Physics 2012-08-13 A. Santerne , R. F. Díaz , C. Moutou , F. Bouchy , G. Hébrard , J. -M. Almenara , A. S. Bonomo , M. Deleuil , N. C. Santos

Models are developed to simulate lightcurves of stars dimmed by transiting exoplanets with and without rings. These models are then applied to \textit{Kepler} photometry to search for planetary rings in a sample of 21 exoplanets, mostly hot…

Earth and Planetary Astrophysics · Physics 2015-11-17 Matthew Z. Heising , Geoffrey W. Marcy , Hilke E. Schlichting

High-resolution ground-based optical speckle and near-infrared adaptive optics images are taken to search for stars in close angular proximity to host stars of candidate planets identified by the NASA Kepler Mission. Neighboring stars are a…

Earth and Planetary Astrophysics · Physics 2015-06-23 Mark E. Everett , Thomas Barclay , David R. Ciardi , Elliott P. Horch , Steve B. Howell , Justin R. Crepp , David R. Silva

Kepler-730 is a planetary system hosting a statistically validated hot Jupiter in a 6.49-day orbit and an additional transiting candidate in a 2.85-day orbit. We use spectroscopic radial velocities from the APOGEE-2N instrument, Robo-AO…

Surveys searching for transiting exoplanets have found many more candidates than they have been able to confirm as true planets. This situation is especially acute with the Kepler survey, which has found over 2300 candidates but has…

Earth and Planetary Astrophysics · Physics 2015-06-05 Timothy D. Morton

We fit a dynamical model to Kepler systems that contain four or more transiting planets using the analytic method AnalyticLC, and obtain physical and orbital parameters for 101 planets in 23 systems, of which 95 are of mass significance…

Earth and Planetary Astrophysics · Physics 2023-11-14 Yair Judkovsky , Aviv Ofir , Oded Aharonson

We search for transits around all known pulsating {\delta} Sct variables (6500 K < Teff < 10 000 K) in the long-cadence Kepler data after subtracting the pulsation signal through an automated routine. To achieve this, we devise a simple and…

Solar and Stellar Astrophysics · Physics 2021-10-27 Daniel R. Hey , Benjamin T. Montet , Benjamin J. S. Pope , Simon J. Murphy , Timothy R. Bedding

Unlike hot Jupiters or other gas giants, super-Earths are expected to have a wide variety of compositions, ranging from terrestrial bodies like our own to more gaseous planets like Neptune. Observations of transiting systems, which allow us…

The 4-year light curves of 156,717 stars observed with NASA's Kepler mission are analyzed using the AutoRegressive Planet Search (ARPS) methodology described by Caceres et al. (2019). The three stages of processing are: maximum likelihood…

We perform a systematic search for atmospheric variability in short-period gas-giant planets (hot Jupiters) observed by the Kepler mission, by looking for temporal variability of their secondary eclipse depths. This is motivated by a recent…

Earth and Planetary Astrophysics · Physics 2024-03-12 Canis Li , Avi Shporer

Hot Jupiters are a rare and interesting outcome of planet formation. Although more than 500 hot Jupiters (HJs) are known, most of them were discovered by a heterogeneous collection of surveys with selection biases that are difficult to…

Earth and Planetary Astrophysics · Physics 2021-11-24 Samuel W. Yee , Joshua N. Winn , Joel D. Hartman

With the availability of large-scale surveys like Kepler and TESS, there is a pressing need for automated methods to classify light curves according to known classes of variable stars. We introduce a new algorithm for classifying light…

Solar and Stellar Astrophysics · Physics 2022-06-30 Nicholas H. Barbara , Timothy R. Bedding , Ben D. Fulcher , Simon J. Murphy , Timothy Van Reeth

Kepler has detected numerous exoplanet transits by precise measurements of stellar light in a single visible-wavelength band. In addition to detection, the precise photometry provides phase curves of exoplanets, which can be used to study…

Earth and Planetary Astrophysics · Physics 2015-06-23 Renyu Hu , Brice-Olivier Demory , Sara Seager , Nikole Lewis , Adam P. Showman

The architectures of multiple planet systems can provide valuable constraints on models of planet formation, including orbital migration, and excitation of orbital eccentricities and inclinations. NASA's Kepler mission has identified 1235…