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相关论文: Finding Hot-Jupiters by Gaia photometry using the …

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In a previous paper we presented the Directed Follow-Up (DFU) approach, which we suggested can be used to efficiently augment low-cadence photometric surveys in a way that will optimize the chances to detect transiting exoplanets. In this…

地球与行星天体物理 · 物理学 2012-11-30 Yifat Dzigan , Shay Zucker

We propose a novel approach to utilize low-cadence photometric surveys for exoplanetary transit search. Even if transits are undetectable in the survey database alone, it can still be useful for finding preferred times for directed…

地球与行星天体物理 · 物理学 2015-05-28 Yifat Dzigan , Shay Zucker

Several attempts have been made in the past to assess the expected number of exoplanetary transits that the Gaia space mission will detect. In this Letter we use the updated design of Gaia and its expected performance, and apply recent…

地球与行星天体物理 · 物理学 2015-06-05 Yifat Dzigan , Shay Zucker

The class of transiting cold Jupiters, orbiting at $\gtrsim0.5-1.0$ au, is to-date underpopulated. Probing their atmospheric composition and physical characteristics is particularly valuable, as it allows for direct comparisons with the…

地球与行星天体物理 · 物理学 2023-02-08 A. Sozzetti , P. Giacobbe , M. G. Lattanzi , M. Pinamonti

Of the known transiting extra-solar planets, a few have been detected through photometric follow-up observations of radial velocity planets. Perhaps the best known of these is the transiting exoplanet HD 209458b. For hot Jupiters (periods…

天体物理学 · 物理学 2009-06-23 Stephen R. Kane

Since 2008 we have run an observational program to accurately measure the characteristics of known exoplanet systems hosting close-in transiting giant planets, i.e. hot Jupiters. Our study is based on high-quality photometric follow-up…

地球与行星天体物理 · 物理学 2016-05-19 Luigi Mancini , John Southworth

Context: The space telescope Gaia is dedicated mainly to performing high-precision astrometry, but also spectroscopy and epoch photometry which can be used to study various types of photometric variability. One such variability type is…

The Gaia spacecraft presents an unprecedented opportunity to reveal the population of long period (a>1\,au) exoplanets orbiting stars across the H-R diagram, including white dwarfs. White dwarf planetary systems have played an important…

地球与行星天体物理 · 物理学 2022-10-26 Hannah Sanderson , Amy Bonsor , Alexander J Mustill

Previous work has demonstrated that the Large Synoptic Survey Telescope (LSST) has the capability to detect transiting planets around main sequence stars in relatively short ($<$ 20 days) periods and using standard algorithms for transit…

地球与行星天体物理 · 物理学 2018-10-01 Michael B. Lund , Joshua A. Pepper , Avi Shporer , Keivan G. Stassun

In its all-sky survey, Gaia will monitor astrometrically and photometrically millions of main-sequence stars with sufficient sensitivity to brown dwarf companions within a few AUs from their host stars and to transiting brown dwarfs on very…

太阳与恒星天体物理 · 物理学 2014-06-06 A. Sozzetti

We re-examine the expected yield of Gaia astrometric planet detections using updated models for giant-planet occurrence, the local stellar population, and Gaia's demonstrated astrometric precision. Our analysis combines a semi-analytic…

地球与行星天体物理 · 物理学 2025-12-12 Caleb Lammers , Joshua N. Winn

We describe a project (transitsearch.org) currently attempting to discover transiting intermediate-period planets orbiting bright parent stars, and we simulate that project's performance. The discovery of such a transit would be an…

天体物理学 · 物理学 2009-11-10 Scott Seagroves , Justin Harker , Gregory Laughlin , Justin Lacy , Tim Castellano

The yields from transit surveys can be used to constrain the frequency and statistical properties of extrasolar planets. Conversely, planet frequencies can be used to estimate expected detection rates, which are critical for the planning…

天体物理学 · 物理学 2007-05-23 B. Scott Gaudi

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

[abridged] We carry out numerical simulations to gauge the Gaia potential for precision astrometry of exoplanets orbiting a sample of known dM stars within 30 pc from the Sun. (1) It will be possible to accurately determine orbits and…

地球与行星天体物理 · 物理学 2015-06-17 A. Sozzetti , P. Giacobbe , M. G. Lattanzi , G. Micela , R. Morbidelli , G. Tinetti

Detection and orbit determination for thousands of planets with periods up to about 40 years would be obtained by astrometry from two Gaia-like missions, results which cannot be obtained by any other mission, planned or proposed. A billion…

天体物理仪器与方法 · 物理学 2014-08-20 Erik Høg

The first transiting extrasolar planet, orbiting HD209458, was a Doppler wobble planet before its transits were discovered with a 10 cm CCD camera. Wide-angle CCD cameras, by monitoring in parallel the light curves of tens of thousands of…

天体物理学 · 物理学 2007-05-23 Keith Horne

The Kepler Mission was launched on March 6, 2009 to perform a photometric survey of more than 100,000 dwarf stars to search for terrestrial-size planets with the transit technique. Follow-up observations of planetary candidates identified…

Since the discovery of short-period exoplanets a decade ago, photometric surveys have been recognized as a feasible method to detect transiting hot Jupiters. Many transit surveys are now under way, with instruments ranging from 10-cm…

天体物理学 · 物理学 2009-11-11 Frederic Pont , Shay Zucker , Didier Queloz

The abundance and properties of planets orbiting binary stars - circumbinary planets - are largely unknown because they are difficult to detect with currently available techniques. Results from the Kepler satellite and other studies…

太阳与恒星天体物理 · 物理学 2015-06-23 Johannes Sahlmann , Amaury H. M. J. Triaud , David V. Martin
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