English
Related papers

Related papers: Improving estimates of msini by expanding RV datas…

200 papers

Nearby stars are prime targets for exoplanet searches and characterization using a variety of detection techniques. Combining constraints from the complementary detection methods of high contrast imaging (HCI) and radial velocity (RV) can…

Earth and Planetary Astrophysics · Physics 2019-09-25 A. Boehle , S. P. Quanz , C. Lovis , D. Sègransan , S. Udry , D. Apai

Radial velocity (RV) monitoring of solar-type visual binaries has been conducted at the CTIO/SMARTS 1.5-m telescope to study short-period systems. Data reduction is described, mean and individual RVs of 163 observed objects are given. New…

Solar and Stellar Astrophysics · Physics 2015-11-05 Andrei Tokovinin

We report on 176 close (<2") stellar companions detected with high-resolution imaging near 170 hosts of Kepler Objects of Interest. These Kepler targets were prioritized for imaging follow-up based on the presence of small planets, so most…

Surveys searching for transiting exoplanets have found many more candidates than they have been able to confirm as true planets. This situation is especially acute with the Kepler survey, which has found over 2300 candidates but has…

Earth and Planetary Astrophysics · Physics 2015-06-05 Timothy D. Morton

We model the detectability of exoplanets around stars in the Beta Pic Moving Group (BPMG) using the Gemini Planet Imager (GPI), a coronagraphic instrument designed to detect companions by imaging. Members of the BPMG are considered…

Solar and Stellar Astrophysics · Physics 2015-05-18 Tiffany Kataria , Michal Simon

The exoplanet archive is an incredible resource of information on the properties of discovered extrasolar planets, but statistical analysis has been limited by the number of missing values. One of the most informative bulk properties is…

Earth and Planetary Astrophysics · Physics 2024-10-14 Florian Lalande , Elizabeth Tasker , Kenji Doya

Stellar activity is one of the primary limitations to the detection of low-mass exoplanets using the radial-velocity (RV) technique. We propose to estimate the variations in shape of the CCF by fitting a Skew Normal (SN) density which,…

Earth and Planetary Astrophysics · Physics 2019-02-13 Umberto Simola , Xavier Dumusque , Jessi Cisewski-Kehe

We present preliminary results of a radial-velocity search for companions to a volume limited sample of M dwarfs. Typical accuracy range between 10m/s for the brighter stars and 70m/s at our limiting magnitude. We complement the radial…

Astrophysics · Physics 2007-05-23 X. Delfosse , T. Forveille , J. -L. Beuzit , S. Udry , M. Mayor , C. Perrier

With dedicated exoplanet surveys underway for multiple extreme precision radial velocity (EPRV) instruments, the near-future prospects of RV exoplanet science are promising. These surveys' generous time allocations are expected to…

Earth and Planetary Astrophysics · Physics 2024-06-26 Arvind F. Gupta , Megan Bedell

More than 450 exoplanets have currently been detected, most of them by the radial velocity (RV) technique. While the majority of exoplanets have been found around main-sequence (MS) FGK stars (M 1.5M*), only a small fraction (- 10%) have…

Earth and Planetary Astrophysics · Physics 2011-04-05 M. I. Jones , J. S. Jenkins , P. Rojo

We investigate the possibility to find evidence for planets in circumstellar disks by infrared and submillimeter interferometry. We present simulations of a circumstellar disk around a solar-type star with an embedded planet of 1 Jupiter…

Astrophysics · Physics 2009-11-07 S. Wolf , F. Gueth , Th. Henning , W. Kley

Future missions, including the Habitable Worlds Observatory, will aim to image Earth-like exoplanets around Sun-like stars in reflected light. Determining whether an exoplanet is in the habitable zone of its star may be difficult in…

Earth and Planetary Astrophysics · Physics 2026-04-13 Samantha N. Hasler , Leonid Pogorelyuk , Riley Fitzgerald , Kerri Cahoy , Rhonda Morgan

This paper aims to derive a map of relative planet occurrence rates that can provide constraints on the overall distribution of terrestrial planets around FGK stars. Based on the planet candidates in the Kepler DR25 data release, I first…

Earth and Planetary Astrophysics · Physics 2021-02-24 Sheng Jin

The information gathered from observing planetary systems is not limited to the discovery of planets, but also includes the observational upper limits constraining the presence of any additional planets. Incorporating these upper limits…

Earth and Planetary Astrophysics · Physics 2024-07-10 Jamie Dietrich

In this paper, we study the feasibility of obtaining near-infrared spectra of bright extrasolar planets with the 2nd generation VLTI Spectro-Imager instrument (VSI), which has the required angular resolution to resolve nearby hot Extrasolar…

Astrophysics · Physics 2009-11-13 S. Renard , O. Absil , J. -P. Berger , X. Bonfils , T. Forveille , F. Malbet

We present the results of two 2.3 micron near-infrared radial velocity surveys to detect exoplanets around 36 nearby and young M dwarfs. We use the CSHELL spectrograph (R ~46,000) at the NASA InfraRed Telescope Facility, combined with an…

The recent development of statistical methods that can distinguish between stellar activity and dynamical signals in radial velocity (RV) observations has facilitated the discovery and characterization of planets orbiting young stars. One…

Earth and Planetary Astrophysics · Physics 2024-09-25 Quang H. Tran , Brendan P. Bowler

An uncertainty relation for the R\'enyi entropies of conjugate quantum observables is used to obtain a strong Heisenberg limit of the form ${\rm RMSE} \geq f(\alpha)/(\langle N\rangle+\frac12)$, bounding the root mean square error of any…

Quantum Physics · Physics 2022-11-21 Michael J. W. Hall

We apply a combination of N-body modeling techniques and automated data fitting with Monte Carlo Markov Chain uncertainty analysis of Keplerian orbital models to radial velocity data to determine long term stability of the planetary system…

Earth and Planetary Astrophysics · Physics 2015-06-19 David A. Joiner , Cesar Sul , Diana Dragomir , Stephen R. Kane , Monika E. Kress

Stellar signals are the main limitation for precise radial-velocity (RV) measurements. These signals arise from the photosphere of the stars. The m/s perturbation created by these signals prevents the detection and mass characterization of…

Earth and Planetary Astrophysics · Physics 2016-07-25 X. Dumusque