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Related papers: Revisiting the Long-Period Transiting Planets from…

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Context. During the primary Kepler mission, between 2009 and 2013, about 150,000 pre-selected targets were observed with a 29.42 minute-long cadence. However, a survey of background stars that fall within the field of view (FOV) of the…

Earth and Planetary Astrophysics · Physics 2025-02-19 John Bienias , Robert Szabo

The determination of exoplanet properties and occurrence rates using Kepler data critically depends on our knowledge of the fundamental properties (such as temperature, radius and mass) of the observed stars. We present revised stellar…

The NASA Kepler mission has revolutionised time-domain astronomy and has massively expanded the number of known extrasolar planets. However, the effect of wide multiplicity on exoplanet occurrence has not been tested with this dataset. We…

We present the results of an independent search of all ~200,000 stars observed over the four year Kepler mission (Q1-Q17) for multiplanet systems, using a three-transit minimum detection criteria to search orbital periods up to hundreds of…

Earth and Planetary Astrophysics · Physics 2020-03-11 Michelle Kunimoto , Jaymie M. Matthews , Henry Ngo

We analyze the effect of companion stars on the bulk density of 29 planets orbiting 15 stars in the Kepler field. These stars have at least one stellar companion within 2", and the planets have measured masses and radii, allowing an…

Earth and Planetary Astrophysics · Physics 2017-08-02 E. Furlan , S. B. Howell

We analyzed the photometry of 20038 cool stars from campaigns 12, 13, 14 and 15 of the K2 mission in order to detect, characterize and validate new planetary candidates transiting low-mass stars. We present a catalogue of 25 new periodic…

We present a comprehensive study of phase curves and secondary eclipses in the Kepler data set using all data from 16 quarters that were available in 2013-2014. Our sample consists of 20 confirmed planets with R_p > 4 R_e ,P < 10d, V_mag <…

Solar and Stellar Astrophysics · Physics 2015-11-18 Daniel Angerhausen , Emily DeLarme , Jon A. Morse

Among the ways that an outer giant planet can alter the architecture of an inner planetary system is by tilting the orbits of the inner planets and reducing their mutual transit probabilities. Here, we report on an example of this…

Earth and Planetary Astrophysics · Physics 2025-04-18 Caleb Lammers , Joshua N. Winn

Holczer, Mazeh, and collaborators (HM+16) used the Kepler four-year observations to derive a transit-timing catalog, identifying 260 Kepler objects of interest (KOI) with significant transit timing variations (TTV). For KOIs with high…

Earth and Planetary Astrophysics · Physics 2021-05-26 Sahar Shahaf , Tsevi Mazeh , Shay Zucker , Daniel Fabrycky

Planet formation theories predict a large but still undetected population of short-period terrestrial planets orbiting brown dwarfs. Should specimens of this population be discovered transiting relatively bright and nearby brown dwarfs, the…

Earth and Planetary Astrophysics · Physics 2016-12-21 Matthias Y. He , Amaury H. M. J. Triaud , Michaël Gillon

Reliable detections of Earth-sized planets in the habitable zone remain elusive in the Kepler sample, even for M dwarfs. The Kepler sample was once thought to contain a considerable number of M dwarf stars ($T_\mathrm{eff} < 4000$ K), which…

We uniformly combined data from the NASA Kepler and K2 missions to compute planet occurrence rates across the entire FGK and M dwarf stellar range. The K2 mission, driven by targets selected by guest observers, monitored nine times more M…

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…

Earth and Planetary Astrophysics · Physics 2026-04-10 Li Zeng , Stephanie C. Werner , Stein B. Jacobsen , Elena Mamonova , Reidar G. Trønnes , Ramon Brasser

Unresolved stellar companions can cause both under-estimations in the radii of transiting planets and over-estimations of their detectability, affecting our ability to reliably measure planet occurrence rates. To quantify the latter, we…

The Kepler mission, despite its conclusion over a decade ago, continues to offer a rich dataset for uncovering new astrophysical objects and phenomena. In this study, we conducted a comprehensive search for exocometary transit signatures…

Earth and Planetary Astrophysics · Physics 2026-01-14 Pierre Dumond , Alain Lecavelier des Etangs , Flavien Kiefer , Guillaume Hébrard , Vincent Caillé

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

Exoplanet surveys like Kepler, TESS, and K2 have shown that planetary systems are common in our galaxy. These surveys, along with several others, have identified thousands of planetary candidates, with more than five thousand having already…

Earth and Planetary Astrophysics · Physics 2025-10-01 Robert Royer , Jason H. Steffen