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Related papers: The Radial Velocity Experiment (RAVE): second data…

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We use data from the Northern Sky Variability Survey (NSVS), obtained from the first generation Robotic Optical Transient Search Experiment (ROTSE-I), to identify and study RR Lyrae variable stars in the solar neighborhood. We initially…

Astrophysics · Physics 2008-11-26 K. Kinemuchi , H. A. Smith , P. R. Wozniak , T. A. McKay , the ROTSE Collaboration.

High precision radial velocity (RV) measurements have been central in the study of exoplanets during the last two decades, from the early discovery of hot Jupiters, to the recent mass measurements of Earth-sized planets uncovered by transit…

Instrumentation and Methods for Astrophysics · Physics 2018-05-02 Étienne Artigau , Lison Malo , René Doyon , Pedro Figueira , Xavier Delfosse , Nicola Astudillo-Defru

We present evidence from the RAdial Velocity Experiment (RAVE) survey of chemically separated, kinematically distinct disc components in the solar neighbourhood. We apply probabilistic chemical selection criteria to separate our sample into…

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…

We present precise relative radial velocity (RV) measurements for the rapidly oscillating Ap (roAp) star 33 Librae measured from high resolution data spanning the wavelength interval 5000--6200 A. We find that pulsational radial velocity…

Astrophysics · Physics 2009-11-10 David E. Mkrtichian , Artie P. Hatzes , Antonio Kanaan

Stellar activity induces apparent radial velocity (RV) variations in late-type main-sequence stars that may hamper the detection of low-mass planets and the measurement of their mass. We use simultaneous measurements of the active planet…

Solar and Stellar Astrophysics · Physics 2015-05-28 A. F. Lanza , I. Boisse , F. Bouchy , A. S. Bonomo , C. Moutou

We present the results of an infrared spectroscopic survey of 23 late-M dwarfs with the NIRSPEC echelle spectrometer on the Keck II telescope. Using telluric lines for wavelength calibration, we are able to achieve measurement precisions of…

Solar and Stellar Astrophysics · Physics 2015-06-11 Angelle Tanner , Russel White , John Bailey , Cullen Blake , Geoffery Blake , Kelle Cruz , Adam J. Burgasser , Adam Kraus

We derive the absolute physical and orbital parameters for a sample of 18 detached eclipsing binaries from the \emph{All Sky Automated Survey} (ASAS) database based on the available photometry and our own radial velocity measurements. The…

Solar and Stellar Astrophysics · Physics 2015-05-14 K. G. Hełminiak , M. Konacki , M. Ratajczak , M. Muterspaugh

The purpose of this research note is to present a reliable list of clean spectral lines in the Calcium Triplet region at medium resolution ~7500, for chemical abundance analysis, in the framework of the RAdial Velocity Experiment (RAVE).…

Solar and Stellar Astrophysics · Physics 2018-11-16 Guillaume Guiglion , Cristina Chiappini , Marica Valentini , Matthias Steinmetz

Galactic globular clusters have been pivotal in our understanding of many astrophysical phenomena. Here we publish the extracted stellar parameters from a recent large spectroscopic survey of ten globular clusters. A brief review of the…

Close-in, massive exoplanets raise significant tides in their stellar hosts. We compute the radial velocity (RV) signal due to this fluid motion in the equilibrium tide approximation. The predicted radial velocities in the observed sample…

Solar and Stellar Astrophysics · Physics 2015-05-30 Phil Arras , Joshua Burkart , Eliot Quataert , Nevin N. Weinberg

Red Dwarfs (RDs) are the most common, low-mass stars (<=0.5 M_sun) in the Solar neighbourhood, and probably in the Universe as well. Most (likely all) young RDs are magnetically active, and therefore it is impossible to measure their radial…

Solar and Stellar Astrophysics · Physics 2013-09-19 Marcin P. Gawronski , Krzysztof Gozdziewski , Krzysztof Katarzynski

High-velocity stars are interesting targets to unveil the formation of the Milky Way. In fact they can be recently accreted from an infalling dwarf galaxies or they can be the result of a turbulent merging of galaxies. Gaia is providing the…

Stars show various amounts of radial velocity (RV) jitter due to varying stellar activity levels. The typical amount of RV jitter as a function of stellar age and observational timescale has not yet been systematically quantified, although…

Earth and Planetary Astrophysics · Physics 2019-11-28 Stefan S. Brems , Martin Kürster , Trifon Trifonov , Sabine Reffert , Andreas Quirrenbach

The planned NASA Habitable Worlds Observatory (HWO) flagship mission aims to image and spectroscopically characterise 25 Earth-size planets in the habitable zones of their stars. However, one giant planet in the habitable zone can ruin your…

High-contrast medium resolution spectroscopy has been used to detect molecules such as water and carbon monoxide in the atmospheres of gas giant exoplanets. In this work, we show how it can be used to derive radial velocity (RV)…

This document details the first public data release of the HARPS radial velocities catalog. This data release aims to provide the astronomical community with a catalog of radial velocities obtained with spectroscopic observations acquired…

Solar and Stellar Astrophysics · Physics 2023-12-13 Mauro Barbieri