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Related papers: Selection Functions in Doppler Planet Searches

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We present new radial velocity measurements of the ultra-cool dwarf VB 10, which was recently announced to host a giant planet detected with astrometry. The new observations were obtained using optical spectrographs(MIKE/Magellan and…

Earth and Planetary Astrophysics · Physics 2015-05-14 Guillem Anglada-Escude , Evgenya L. Shkolnik , Alycia J. Weinberger , Ian B. Thompson , David J. Osip , John H. Debes

With the advent of optical interferometers that will be coming online in the next decade, radial velocity searches for extra-solar planets will be complemented by high angular resolution astrometric measurements. In this paper, we explore…

Astrophysics · Physics 2009-11-06 J. A. Eisner , S. R. Kulkarni

We use Monte Carlo simulations to estimate the number of extrasolar planets that are directly detectable in the solar-neighborhood using current and forthcoming high-contrast imaging instruments. Our calculations take into account the…

Earth and Planetary Astrophysics · Physics 2015-05-27 Justin R. Crepp , John Asher Johnson

Precise radial velocity (RV) measurements are a crucial tool for exoplanet discovery and characterization. Today, the majority of these measurements are derived from Echelle spectra in the optical wavelength region using cross-correlation…

In this paper, we determine the detectability of eclipsing binary star companions from eclipse timing variations using the Kepler mission dataset. Extensive and precise stellar time-series photometry from space-based missions enable…

Solar and Stellar Astrophysics · Physics 2021-05-12 A. K. Getley , B. Carter , R. King , S. O'Toole

The photometric precision, monitoring baselines, and rapid, even sampling rates required by modern satellites designed for detecting the signal of transiting exoplanets are ideally suited to a large number of applications in high-energy…

Instrumentation and Methods for Astrophysics · Physics 2019-04-22 Krista Lynne Smith

The field of exoplanets has rapidly expanded from the exclusivity of exoplanet detection to include exoplanet characterization. A key step towards this characterization will be retrieval of planetary albedos and rotation rates from highly…

Earth and Planetary Astrophysics · Physics 2015-11-13 S. R. Kane , S. D. Domagal-Goldman , J. R. Herman , T. D. Robinson , A. R. Stine

Searching for extrasolar planets around stars of different metallicity may provide strong constraints to the models of planet formation and evolution. In this paper we present the overall results of a HARPS (a high-precision spectrograph…

Earth and Planetary Astrophysics · Physics 2015-05-20 N. C. Santos , M. Mayor , X. Bonfils , X. Dumusque , F. Bouchy , P. Figueira , C. Lovis , C. Melo , F. Pepe , D. Queloz , D. Ségransan , S. G. Sousa , S. Udry

The discovery of the short-period giant exoplanet population, the so-called hot Jupiter population, and their link to brown dwarfs and low-mass stars challenges the conventional view of planet formation and evolution. We took advantage of…

We use detailed simulations of the Gaia observations of synthetic planetary systems and develop and utilize independent software codes in double-blind mode to analyze the data, including statistical tools for planet detection and different…

"exoplanet" is a toolkit for probabilistic modeling of astronomical time series data, with a focus on observations of exoplanets, using PyMC3 (Salvatier et al., 2016). PyMC3 is a flexible and high-performance model-building language and…

We propose several descriptive measures to characterize the arrangements of planetary masses, periods, and mutual inclinations within exoplanetary systems. These measures are based in complexity theory and capture the global, system-level…

Earth and Planetary Astrophysics · Physics 2020-06-10 Gregory J. Gilbert , Daniel C. Fabrycky

We report results of a search for planets around 500 main sequence stars using the Keck high resolution spectrometer which has provided Doppler precision of 3 m/s during the past 3 yr. We report 6 new strong planet candidates having…

Astrophysics · Physics 2009-10-31 Steven S. Vogt , Geoffrey W. Marcy , R. Paul Butler , Kevin Apps

Direct imaging of exoplanets presents both significant challenges and significant gains. The advantages primarily lie in receiving emitted and, with future instruments, reflected photons at phase angles not accessible by other techniques,…

Earth and Planetary Astrophysics · Physics 2018-11-28 Stephen R. Kane , Tiffany Meshkat , Margaret C. Turnbull

The study of exoplanets (planets orbiting other stars) is revolutionizing the way we view our universe. High-precision photometric data provided by the Kepler Space Telescope (Kepler) enables not only the detection of such planets, but also…

Earth and Planetary Astrophysics · Physics 2015-06-22 Ben Placek , Kevin H. Knuth

The Kepler K2 mission now makes it possible to find and study a wider variety of eclipsing binary stars than has been possible to-date, particularly long-period systems with narrow eclipses. Our aim is to characterise eclipsing binary stars…

Solar and Stellar Astrophysics · Physics 2018-08-15 P. F. L. Maxted , R. J. Hutcheon

For extrasolar planets with orbital periods, P>10 days, radial velocity surveys find non-circular orbital eccentricities are common, <e>~0.3. Future surveys for extrasolar planets using the transit technique will also have sensitivity to…

Astrophysics · Physics 2009-11-13 Christopher J. Burke

Doppler measurements of two G-type main-sequence stars, HD210277 and HD168443, reveal Keplerian variations that imply the presence of companions with masses (M sin i) of 1.28 and 5.04 M_Jup and orbital periods of 437 d and 58 d,…

Astrophysics · Physics 2009-10-31 Geoffrey W. Marcy , R. Paul Butler , Steven S. Vogt , Debra Fischer , Michael C. Liu

Over 300 extrasolar planets have been found since 1992, showing that planetary systems are common and exhibit an outstanding variety of characteristics. As the number of detections grows and as models of planet formation progress to account…

Earth and Planetary Astrophysics · Physics 2015-05-13 A. Eggenberger , S. Udry

The goal of this paper is to investigate the optimal parameters space for using the reloaded Rossiter-McLaughlin technique to detect differential rotation (DR) and centre-to-limb convective variations. We simulated a star-planet system with…

Solar and Stellar Astrophysics · Physics 2022-05-25 N. Roguet-Kern , H. M. Cegla , V. Bourrier
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