English
Related papers

Related papers: Observational biases in determining extrasolar pla…

200 papers

We develop an idealized dynamical model to predict the typical properties of outer extrasolar planetary systems, at radii beyond 5 AU. Our hypothesis is that dynamical evolution in outer planetary systems is controlled by a combination of…

Earth and Planetary Astrophysics · Physics 2015-05-18 Sean N. Raymond , Philip J. Armitage , Noel Gorelick

We develop a general method to fit the planetary distribution function (PLDF) to exoplanet survey data. This maximum likelihood method accommodates more than one planet per star and any number of planet or target star properties.…

Earth and Planetary Astrophysics · Physics 2015-05-28 Andrew N. Youdin

Simulation of quasicircular compact binaries is a major goal in numerical relativity, as they are expected to constitute most gravitational wave observations. However, given that orbital eccentricity is not well-defined in general…

General Relativity and Quantum Cosmology · Physics 2024-10-10 Sarah Habib , Mark Scheel , Saul Teukolsky

Planets with non-zero obliquity and/or orbital eccentricity experience seasonal variations of stellar irradiation at local latitudes. The extent of the atmospheric response can be crudely estimated by the ratio between the orbital timescale…

Earth and Planetary Astrophysics · Physics 2022-03-22 Xianyu Tan

It is well-known that the light curve of a transiting planet contains information about the planet's orbital period and size relative to the host star. More recently, it has been demonstrated that a tight constraint on an individual…

Earth and Planetary Astrophysics · Physics 2015-06-23 Ellen M. Price , Leslie A. Rogers , John Asher Johnson , Rebekah I. Dawson

We apply Monte Carlo projection to the radial velocity data set that Anglada Escude et al. (2016) use for the discovery of Proxima b. They find an upper limit to the orbital eccentricity of 0.35. To investigate the eccentricity issue…

Earth and Planetary Astrophysics · Physics 2017-08-02 Robert A. Brown

There is a degeneracy in the radial velocity exoplanet signal between a single planet on an eccentric orbit and a two-planet system with a period ratio of 2:1. This degeneracy could lead to misunderstandings of the dynamical histories of…

Earth and Planetary Astrophysics · Physics 2018-08-29 John H. Boisvert , Benjamin E. Nelson , Jason H. Steffen

Improved photometric sensitivity from space-based telescopes have enabled the detection of phase variations for a small sample of hot Jupiters. However, exoplanets in highly eccentric orbits present unique opportunities to study the effects…

Earth and Planetary Astrophysics · Physics 2015-05-20 Stephen R. Kane , Dawn M. Gelino

Spirals in protoplanetary discs have been used to locate the potential planet in discs. Since only the spiral shape from a circularly orbiting perturber is known, most previous works assume that the planet is in a circular orbit. We develop…

Earth and Planetary Astrophysics · Physics 2021-12-22 Zhaohuan Zhu , Raymond M. Zhang

Radial velocity measurements can be used to constrain the dynamical state of a stellar cluster. However, for clusters with velocity dispersions smaller than a few km/s the observed radial velocity distribution tends to be dominated by the…

Solar and Stellar Astrophysics · Physics 2015-06-11 Michiel Cottaar , Michael R. Meyer , Richard J. Parker

We study the impact of eccentricity on gravitational-wave parameter estimation for binary neutron star systems. For signals with small eccentricity injected into the advanced LIGO sensitivity, we perform Bayesian parameter estimation using…

General Relativity and Quantum Cosmology · Physics 2022-06-13 Hee-Suk Cho

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…

Earth and Planetary Astrophysics · Physics 2015-06-05 Julia Fang , Jean-Luc Margot

We study the orbital stability of a non-zero mass, close-in circular orbit planet around an eccentric orbit binary for various initial values of the binary eccentricity, binary mass fraction, planet mass, planet semi--major axis, and planet…

Earth and Planetary Astrophysics · Physics 2020-04-29 Cheng Chen , Stephen H. Lubow , Rebecca G. Martin

We have investigated the probability of temporary capture of asteroids in eccentric orbits by a planet in a circular or an eccentric orbit through analytical and numerical calculations. We found that in the limit of the circular orbit, the…

Earth and Planetary Astrophysics · Physics 2017-03-22 Arika Higuchi , Shigeru Ida

In this study, we compute completeness-corrected occurrence rates of giant exoplanets as a function of mass, semimajor axis, and eccentricity, using the approximately uniform California Legacy Survey sample of RV-discovered planets…

Earth and Planetary Astrophysics · Physics 2026-01-28 Sarah Blunt , Jason Wang , Ruth Murray-Clay , Bruce Macintosh , Ryan A. Rubenzahl , B. J. Fulton

This is the second paper in a series of papers showing the results of extrasolar planet population synthesis calculations. In the companion paper (Paper I), we have presented in detail our methods. By applying an observational detection…

Earth and Planetary Astrophysics · Physics 2015-05-13 Christoph Mordasini , Yann Alibert , Willy Benz , Dominique Naef

Transit surveys have revealed a significant population of compact multi-planet systems, containing several sub-Neptune-mass planets on close-in, tightly-packed orbits. These systems are thought to have formed through a final phase of giant…

Earth and Planetary Astrophysics · Physics 2021-07-21 Samuel W. Yee , Daniel Tamayo , Samuel Hadden , Joshua N. Winn

Context: Several studies have so far placed useful constraints on planetary atmospheric properties using transmission spectrsocopy, and in the case of HD209458b even the radial velocity of the planet during the transit event has been…

Earth and Planetary Astrophysics · Physics 2015-05-27 M. Montalto , N. C. Santos , I. Boisse , G. Boué , P. Figueira , S. Sousa

A simple question of celestial mechanics is investigated: in what regions of phase space near a binary system can planets persist for long times? The planets are taken to be test particles moving in the field of an eccentric binary system.…

Astrophysics · Physics 2010-04-06 Matthew Holman , Paul Wiegert

Many of the planets discovered via the radial velocity technique are hot Jupiters in 3-5 day orbits with ~10$% chance of transiting their parent star. However, radial velocity surveys for extra-solar planets generally require substantial…

Astrophysics · Physics 2007-05-23 Stephen R. Kane , Jian Ge
‹ Prev 1 4 5 6 7 8 10 Next ›