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We present an investigation of twelve candidate transiting planets from Kepler with orbital periods ranging from 34 to 207 days, selected from initial indications that they are small and potentially in the habitable zone (HZ) of their…

We report here the tentative discovery of a Jovian planet in orbit around the rapidly pulsating subdwarf B-type (sdB-type) eclipsing binary NY Vir. By using new determined eclipse times together with those collected from the literature, we…

太阳与恒星天体物理 · 物理学 2015-06-03 S. -B. Qian , L. -Y. Zhu , Z. -B. Dai , E. Fernández Lajús , F. -Y. Xiang , J. -J. He

In this work we investigate the problem concerning the presence of additional bodies gravitationally bounded with the WASP-3 system. We present eight new transits of this planet and analyse all the photometric and radial velocity data…

地球与行星天体物理 · 物理学 2015-06-12 M. Montalto , J. Gregorio , G. Boue' , A. Mortier , I. Boisse , M. Oshagh , M. Maturi , P. Figueira , S. Sousa , N. C. Santos

We investigate the distributions of the orbital period ratios of adjacent planets in high multiplicity \kepler\ systems (four or more planets) and low multiplicity systems (two planets). Modeling the low multiplicity sample as essentially…

地球与行星天体物理 · 物理学 2015-06-12 Jason H. Steffen

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

We present the characterization of the Kepler-93 exoplanetary system, based on three years of photometry gathered by the Kepler spacecraft. The duration and cadence of the Kepler observations, in tandem with the brightness of the star,…

We use the KOI-13 transiting star-planet system as a test case for the recently developed BEER algorithm (Faigler & Mazeh 2011), aimed at identifying non-transiting low-mass companions by detecting the photometric variability induced by the…

Kepler-16 is an eccentric low-mass eclipsing binary with a circumbinary transiting planet. Here we investigate the angular momentum of the primary star, based on Kepler photometry and Keck spectroscopy. The primary star's rotation period is…

With $n$-body simulations we investigate the stability of tilted circumbinary planetary systems consisting of two nonzero mass planets. The planets are initially in circular orbits that are coplanar to each other, as would be expected if…

地球与行星天体物理 · 物理学 2023-03-29 Cheng Chen , Stephen H. Lubow , Rebecca G. Martin , C. J. Nixon

The discovery of many planets using the Kepler telescope includes ten planets orbiting eight binary stars. Three binaries, Kepler-16, Kepler-47, and Kepler-453, have at least one planet in the circumbinary habitable-zone (BHZ). We constrain…

地球与行星天体物理 · 物理学 2016-03-09 Jorge I. Zuluaga , Paul A. Mason , Pablo A. Cuartas

The possible existence of additional long-period planetary-mass objects in the extrasolar planetary systems 47 UMa and 14 Her is investigated. We combine all available radial-velocity data on these stars, spanning up to 18 years. For the 47…

天体物理学 · 物理学 2008-11-26 Robert A. Wittenmyer , Michael Endl , William D. Cochran

Among the hundred or so extrasolar planets discovered to date, 19 are orbiting a component of a double or multiple star system. In this paper, we discuss the properties of these planets and compare them to the characteristics of planets…

天体物理学 · 物理学 2009-11-10 A. Eggenberger , S. Udry , M. Mayor

The Kepler Mission has discovered thousands of exoplanets and revolutionized our understanding of their population. This large, homogeneous catalog of discoveries has enabled rigorous studies of the occurrence rate of exoplanets and…

地球与行星天体物理 · 物理学 2016-12-14 Daniel Foreman-Mackey , Timothy D. Morton , David W. Hogg , Eric Agol , Bernhard Schölkopf

We present the first results of a Kepler survey of 41 eclipsing binaries that we undertook to search for third star companions. Such tertiaries will periodically alter the eclipse timings through light travel time and dynamical effects. We…

太阳与恒星天体物理 · 物理学 2015-06-04 D. R. Gies , S. J. Williams , R. A. Matson , Z. Guo , S. M. Thomas , J. A. Orosz , G. J. Peters

Hundreds of giant planets have been discovered so far and the quest of exo-Earths in giant planet systems has become intriguing. In this work, we aim to address the question of the possible long-term coexistence of a terrestrial companion…

地球与行星天体物理 · 物理学 2018-07-18 Kyriaki I. Antoniadou , Anne-Sophie Libert

Aims: We predict the exoplanet yield of a space-based mid-infrared nulling interferometer using Monte Carlo simulations. We quantify the number and properties of detectable exoplanets and identify those target stars that have the highest or…

地球与行星天体物理 · 物理学 2017-12-27 J. Kammerer , S. P. Quanz

The Kepler mission and its successor K2 have brought forth a cascade of transiting planets. Many of these planetary systems exhibit multiple members, but a large fraction possess only a single transiting example. This overabundance of…

地球与行星天体物理 · 物理学 2018-04-11 Christopher Spalding , Noah W. Marx , Konstantin Batygin

Transit timing variations of Kepler-410Ab were already reported in a few papers. Their semi-amplitude is about 14.5 minutes. In our previous paper, we found that the transit timing variations could be caused by the presence of a stellar…

Understanding the relationship between long-period giant planets and multiple smaller short-period planets is critical for formulating a complete picture of planet formation. This work characterizes three such systems. We present Kepler-65,…