The Pathfinder testbed: exploring techniques for achieving precision radial velocities in the near infrared [PDF]
SPIE 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 ...
Steinn Sigurdsson +7 more
semanticscholar +6 more sources
A multi-technique approach to identifying and/or constraining radial-velocity substellar companions [PDF]
Astronomy & 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
+7 more sources
Detecting Outer Planets in Edge‐on Orbits: Combining Radial Velocity and Astrometric Techniques [PDF]
The Astrophysical Journal, 2002 11 pages, 4 figures (5 EPS files)
Josh A. Eisner, Shrinivas R. Kulkarni
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Precision radial velocity measurements by the forward-modeling technique in the near-infrared [PDF]
Publications 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 +5 more sources
Sensitivity of the Radial‐Velocity Technique in Detecting Outer Planets [PDF]
The Astrophysical Journal, 2001 31 pages (including 11 postscript figures).
Josh A. Eisner, Shrinivas R. Kulkarni
openaire +6 more sources
Radial velocity data analysis with compressed sensing techniques [PDF]
Monthly Notices of the Royal Astronomical Society, 2016 Accepted for publication in ...
Gwenaël Boué +4 more
openaire +9 more sources
Search for exoplanets with the radial-velocity technique: quantitative diagnostics of stellar activity [PDF]
Astronomy & 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 +6 more sources
Accounting for stellar activity signals in radial-velocity data by using change point detection techniques [PDF]
Astronomy & Astrophysics, 2022 Context.Active regions on the photosphere of a star have been the major obstacle for detecting Earth-like exoplanets using the radial velocity (RV) method. A commonly employed solution for addressing stellar activity is to assume a linear relationship between the RV observations and the activity indicators along the entire time series, and then remove ...
Simola, U. +5 more
openaire +6 more sources
Consistent radial velocities of classical Cepheids from the cross-correlation technique [PDF]
Astronomy & 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.
Alexandre Gallenne +16 more
openaire +7 more sources
Detectability of quasi-circular co-orbital planets. Application to the radial velocity technique [PDF]
Astronomy & 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.
Philippe Robutel +3 more
openaire +9 more sources