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We present exoplanet occurrence rates estimated with approximate Bayesian computation for planets with radii between 0.5 and 16 $R_{\bigoplus}$ and orbital periods between 0.78 and 400 days, orbiting FGK dwarf stars. We base our results on…

地球与行星天体物理 · 物理学 2020-05-13 Michelle Kunimoto , Jaymie M. Matthews

We characterize the occurrence rate of planets, ranging in size from 0.5-16 R$_\oplus$, orbiting FGK stars with orbital periods from 0.5-500 days. Our analysis is based on results from the "DR25" catalog of planet candidates produced by…

地球与行星天体物理 · 物理学 2020-01-08 Danley C. Hsu , Eric B. Ford , Darin Ragozzine , Keir Ashby

We present Kepler exoplanet occurrence rates for planets between $0.5-16$ R$_\oplus$ and between $1-400$ days. To measure occurrence, we use a non-parametric method via a kernel density estimator and use bootstrap random sampling for…

地球与行星天体物理 · 物理学 2023-08-02 Anne Dattilo , Natalie M. Batalha , Steve Bryson

We present a new framework to characterize the occurrence rates of planet candidates identified by Kepler based on hierarchical Bayesian modeling, Approximate Bayesian Computing (ABC), and sequential importance sampling. For this study we…

地球与行星天体物理 · 物理学 2018-05-02 Danley C. Hsu , Eric B. Ford , Darin Ragozzine , Robert C. Morehead

We infer the number of planets-per-star as a function of orbital period and planet size using $Kepler$ archival data products with updated stellar properties from the $Gaia$ Data Release 2. Using hierarchical Bayesian modeling and…

We present robust planet occurrence rates for Kepler planet candidates around M stars for planet radii $R_p = 0.5-4~\textrm{R}_\oplus$ and orbital periods $P = 0.5-256$ days using the approximate Bayesian computation (ABC) technique. This…

地球与行星天体物理 · 物理学 2020-09-09 Danley C. Hsu , Eric B. Ford , Ryan Terrien

Exoplanet catalogs produced by surveys suffer from a lack of completeness (not every planet is detected) and less than perfect reliability (not every planet in the catalog is a true planet), particularly near the survey's detection limit.…

We measure exoplanet occurrence rate as a function of isochrone and gyrochronology ages using confirmed and candidate planets identified in Q1-17 DR25 Kepler data. We employ Kepler's pipeline detection efficiency to correct for the expected…

地球与行星天体物理 · 物理学 2025-01-24 Maryum Sayeed , Ruth Angus , Travis Berger , Yuxi , Lu , Jessie Christiansen , Daniel Foreman-Mackey , Melissa Ness

The Kepler Mission is uniquely suited to study the frequencies of extrasolar planets. This goal requires knowledge of the incidence of false positives such as eclipsing binaries in the background of the targets, or physically bound to them,…

Understanding the demographics of close-in planets is crucial for insights into exoplanet formation and evolution. We present a detailed analysis of occurrence rates for close-in (0.5-16 day) planets with radii between 2 and…

We measure planet occurrence rates using the planet candidates discovered by the Q1-Q16 Kepler pipeline search. This study examines planet occurrence rates for the Kepler GK dwarf target sample for planet radii, 0.75<Rp<2.5 Rearth, and…

We report the distribution of planets as a function of planet radius (R_p), orbital period (P), and stellar effective temperature (Teff) for P < 50 day orbits around GK stars. These results are based on the 1,235 planets (formally "planet…

This paper introduces a new method of inferring the intrinsic exoplanet population from Kepler data, based on the assumption that the frequency of exoplanets can be represented by a smooth function of planet radius and period. The method is…

地球与行星天体物理 · 物理学 2016-05-10 Wesley A. Traub

This paper aims to derive a map of relative planet occurrence rates that can provide constraints on the overall distribution of terrestrial planets around FGK stars. Based on the planet candidates in the Kepler DR25 data release, I first…

地球与行星天体物理 · 物理学 2021-02-24 Sheng Jin

Recent astronomical observations, in particular from the Kepler and TESS missions and their related follow-ups, have revealed an abundance of exoplanets in the size range between Neptune (4 Earth radii) and Earth (1 Earth radii ), as well…

地球与行星天体物理 · 物理学 2026-04-10 Li Zeng , Stephanie C. Werner , Stein B. Jacobsen , Elena Mamonova , Reidar G. Trønnes , Ramon Brasser

Using our K2 Campaign 5 fully automated planet detection data set (43 planets), which has corresponding measures of completeness and reliability, we infer an underlying planet population model for the FGK dwarfs sample (9,257 stars).…

We present here the first observationally based determination of the rate of occurrence of circumbinary planets. This is derived from the publicly available Kepler data, using an automated search algorithm and debiasing process to produce…

地球与行星天体物理 · 物理学 2015-06-19 D. J. Armstrong , H. Osborn , D. Brown , F. Faedi , Y. Gómez Maqueo Chew , D. Martin , D. Pollacco , S. Udry

We develop a general method to fit the planetary distribution function (PLDF) to exoplanet survey data. This maximum likelihood method accommodates more than one planet per star and any number of planet or target star properties.…

地球与行星天体物理 · 物理学 2015-05-28 Andrew N. Youdin

Data from Kepler's first 136 days of operation are analyzed to determine the distribution of exoplanets with respect to radius, period, and host-star spectral type. The analysis is extrapolated to estimate the percentage of terrestrial,…

地球与行星天体物理 · 物理学 2015-05-30 Wesley A. Traub

We investigate the role that planet detection order plays in the Kepler planet detection pipeline. The Kepler pipeline typically detects planets in order of descending signal strength (MES). We find that the detectability of transits…

地球与行星天体物理 · 物理学 2019-01-11 Jon K. Zink , Jessie L. Christiansen , Bradley M. S. Hansen
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