Results 11 to 20 of about 9,873 (216)

Radial velocity data analysis with compressed sensing techniques [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2016
Accepted for publication in ...
Hara, Nathan   +3 more
openaire   +5 more sources

Sensitivity of the Radial‐Velocity Technique in Detecting Outer Planets [PDF]

open access: yesThe Astrophysical Journal, 2001
31 pages (including 11 postscript figures).
Eisner, J. A., Kulkarni, S. R.
openaire   +2 more sources

A multi-technique approach to identifying and/or constraining radial-velocity substellar companions

open access: yesAstronomy & Astrophysics, 2023
Context. Although more than one thousand substellar companions have already been detected with the radial velocity (RV) method, many new companions remain to be detected in the public RV archives. Aims. We wish to use the archival data obtained with the ESO/HARPS spectrograph to search for substellar companions. Methods.
Philipot, F.   +5 more
openaire   +4 more sources

Precision radial velocity measurements by the forward-modeling technique in the near-infrared [PDF]

open access: yesPublications of the Astronomical Society of Japan, 2020
Abstract Precision radial velocity (RV) measurements in the near-infrared are a powerful tool to detect and characterize exoplanets around low-mass stars or young stars with higher magnetic activity. However, the presence of strong telluric absorption lines and emission lines in the near-infrared that significantly vary in time can ...
Teruyuki Hirano   +17 more
openaire   +2 more sources

Detecting Outer Planets in Edge‐on Orbits: Combining Radial Velocity and Astrometric Techniques [PDF]

open access: yesThe Astrophysical Journal, 2002
11 pages, 4 figures (5 EPS files)
Eisner, J. A., Kulkarni, S. R.
openaire   +2 more sources

The Bulge Radial Velocity Assay: Techniques and a Rotation Curve

open access: yesThe Astrophysical Journal, 2007
We are undertaking a large-scale radial velocity survey of the Galactic bulge that uses M giant stars selected from the Two Micron All Sky Survey catalog as targets for the Cerro Tololo Inter-American Observatory 4 m Hydra multiobject spectrograph. The aim of this survey is to test dynamical models of the bulge and to quantify the importance, if any ...
R. Michael Rich   +3 more
openaire   +3 more sources

The Pathfinder testbed: exploring techniques for achieving precision radial velocities in the near infrared [PDF]

open access: yesSPIE Proceedings, 2010
The Penn State Pathfinder is a prototype warm fiber-fed Echelle spectrograph with a Hawaii-1 NIR detector that has already demonstrated 7-10 m/s radial velocity precision on integrated sunlight. The Pathfinder testbed was initially setup for the Gemini PRVS design study to enable a systematic exploration of the challenges of achieving high radial ...
Ramsey, Larry   +7 more
openaire   +2 more sources

Detectability of quasi-circular co-orbital planets. Application to the radial velocity technique [PDF]

open access: yesAstronomy & Astrophysics, 2015
Several celestial bodies in co-orbital configurations exist in the solar system. However, co-orbital exoplanets have not yet been discovered. This lack may result from a degeneracy between the signal induced by co-orbital planets and other orbital configurations.
Leleu, Adrien   +2 more
openaire   +5 more sources

Search for exoplanets with the radial-velocity technique: quantitative diagnostics of stellar activity [PDF]

open access: yesAstronomy & Astrophysics, 2007
Aims: Stellar activity may complicate the analysis of high-precision radial-velocity spectroscopic data when looking for exoplanets signatures. We aim at quantifying the impact of stellar spots on stars with various spectral types and rotational velocities and comparing the simulations with data obtained with the HARPS spectrograph.
Desort, M.   +4 more
openaire   +3 more sources

Consistent radial velocities of classical Cepheids from the cross-correlation technique [PDF]

open access: yesAstronomy & Astrophysics, 2019
Context. Accurate radial velocities (vrad) of Cepheids are mandatory within the context of Cepheid distance measurements using the Baade-Wesselink technique. The most common vrad derivation method consists in cross-correlating the observed stellar spectra with a binary template and measuring a velocity on the resulting mean profile.
Borgniet, S.   +13 more
openaire   +3 more sources

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