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相关论文: Forecasted masses for seven thousand KOIs

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We conduct experiments on both real and synthetic radial velocity (RV) data to quantify the impact that observing cadence, the number of RV observations, and undetected companions all have on the accuracy of small planet mass measurements.…

地球与行星天体物理 · 物理学 2024-11-12 Joseph M. Akana Murphy , Rafael Luque , Natalie M. Batalha

A goal of the future Habitable Worlds Observatory (HWO) is to directly image and spectroscopically characterize true Earth-analogs. However, if a large fraction of HWO target stars host unknown dynamically disruptive giant planets in their…

Following Ford et al. (2011, 2012) and Steffen et al. (2012) we derived the transit timing of 1960 Kepler KOIs using the pre-search data conditioning (PDC) light curves of the first twelve quarters of the Kepler data. For 721 KOIs with…

Transit Timing Variations (TTVs) can provide useful information on compact multi-planetary systems observed by transits, by putting constraints on the masses and eccentricities of the observed planets. This is especially helpful when the…

地球与行星天体物理 · 物理学 2024-05-24 A. Leleu , J. -B. Delisle , S. Udry , R. Mardling , M. Turbet , J. A. Egger , Y. Alibert , G. Chatel , P. Eggenberger , M. Stalport

We propose a scientific program to complete a census of planets, characterizing their masses, orbital properties, and dynamical histories using continued observations of the Kepler field of view with the Kepler spacecraft in a two reaction…

Space-based transit missions such as Kepler and TESS have demonstrated that planets are ubiquitous. However, the success of these missions heavily depends on ground-based radial velocity (RV) surveys, which combined with transit photometry…

The orbital element distribution of trans-Neptunian objects (TNOs) with large pericenters has been suggested to be influenced by the presence of an undetected, large planet at >200 AU from the Sun. To find additional observables caused by…

地球与行星天体物理 · 物理学 2017-01-04 S. M. Lawler , C. Shankman , N. Kaib , M. T. Bannister , B. Gladman , J. J. Kavelaars

Prospects for expanding the available mass measurements of the Kepler sample are limited. Planet masses have typically been inferred via radial velocity (RV) measurements of the host star or time-series modeling of transit timing variations…

地球与行星天体物理 · 物理学 2022-09-21 Jared C. Siegel , Leslie A. Rogers

The Kepler Mission has found thousands of planetary candidates with radii between 1 and 4 R$_\oplus$. These planets have no analogues in our own Solar System, providing an unprecedented opportunity to understand the range and distribution…

地球与行星天体物理 · 物理学 2015-06-25 Angie Wolfgang , Eric Lopez

We analyze a sample of multiple-exoplanet systems which contain at least 3 transiting planets detected by the Kepler mission ("Kepler multiples"). We use a generalized Titius-Bode relation to predict the periods of 228 additional planets in…

地球与行星天体物理 · 物理学 2015-06-23 Timothy Bovaird , Charles H. Lineweaver , Steffen K. Jacobsen

We present the Kepler Object of Interest (KOI) catalog of transiting exoplanets based on searching four years of Kepler time series photometry (Data Release 25, Q1-Q17). The catalog contains 8054 KOIs of which 4034 are planet candidates…

In the blooming field of exoplanetary science, NASA's Kepler Space Telescope has revolutionized our understanding of exoplanets. Kepler's very precise and long-duration photometry is ideal for detecting planetary transits around Sun-like…

地球与行星天体物理 · 物理学 2017-01-18 Giacomo Fragione , Idan Ginsburg

The Kepler Mission is monitoring the brightness of ~150,000 stars searching for evidence of planetary transits. As part of the "Hunt for Exomoons with Kepler" (HEK) project, we report a planetary system with two confirmed planets and one…

地球与行星天体物理 · 物理学 2015-06-11 David Nesvorny , David M. Kipping , Lars A. Buchhave , Gáspár Á. Bakos , Joel Hartman , Allan Schmitt

We extend the statistical analysis of Lissauer et al. (2012, ApJ 750, 112), which demonstrates that the overwhelming majority of Kepler candidate multiple transiting systems (multis) represent true transiting planets, and develop therefrom…

The two most common techniques for measuring planetary masses - the radial velocity (RV) and the transit timing variations (TTVs) techniques - have been observed to yield systematically different masses for planets of similar radii.…

地球与行星天体物理 · 物理学 2017-04-19 Sean M. Mills , Tsevi Mazeh

We investigated the underlying architecture of planetary systems by deriving the distribution of planet multiplicity (number of planets) and the distribution of orbital inclinations based on the sample of planet candidates discovered by the…

地球与行星天体物理 · 物理学 2015-06-05 Julia Fang , Jean-Luc Margot

We present an investigation of spin-orbit angles for planetary system candidates reported by Kepler. By combining the rotational period $P_s$ inferred from the flux variation due to starspots and the projected rotational velocity $V\sin…

地球与行星天体物理 · 物理学 2015-06-05 Teruyuki Hirano , Roberto Sanchis-Ojeda , Yoichi Takeda , Norio Narita , Joshua N. Winn , Atsushi Taruya , Yasushi Suto

All-sky imaging surveys have identified several dozen isolated planetary-mass objects (IPMOs), far away from any star. Here, we examine the prospects for detecting transiting moons around these objects. We expect transiting moons to be…

地球与行星天体物理 · 物理学 2021-09-29 Mary Anne Limbach , Johanna M. Vos , Joshua N. Winn , Rene Heller , Jeffrey C. Mason , Adam C. Schneider , Fei Dai