Remote Sensing, 2021 The strategy providing an estimation of both the mean velocity and the temporal and spatial spectra of radial velocity from data of the same pulse coherent Doppler lidar is proposed.
Viktor A. Banakh +3 more
doaj +4 more sources
An Extreme-precision Radial-velocity Pipeline: First Radial Velocities from EXPRES [PDF]
The Astronomical Journal, 2020 The EXtreme-PREcision Spectrograph (EXPRES) is an environmentally stabilized, fiber-fed, R = 137,500, optical spectrograph. It was recently commissioned at the 4.3 m Lowell Discovery Telescope near Flagstaff, Arizona. The spectrograph was designed with a
R. R. Petersburg +15 more
semanticscholar +5 more sources
The California Legacy Survey. I. A Catalog of 178 Planets from Precision Radial Velocity Monitoring of 719 Nearby Stars over Three Decades [PDF]
Astrophysical Journal Supplement Series, 2021 We present a high-precision radial velocity (RV) survey of 719 FGKM stars, which host 164 known exoplanets and 14 newly discovered or revised exoplanets and substellar companions.
L. Rosenthal +22 more
semanticscholar +1 more source
orvara: An Efficient Code to Fit Orbits Using Radial Velocity, Absolute, and/or Relative Astrometry [PDF]
Astronomical Journal, 2021 We present an open-source Python package, Orbits from Radial Velocity, Absolute, and/or Relative Astrometry (orvara), to fit Keplerian orbits to any combination of radial velocity, relative astrometry, and absolute astrometry data from the Hipparcos-Gaia
Timothy D. Brandt +7 more
semanticscholar +1 more source
The Solar Neighborhood XLVIII: Nine Giant Planets Orbiting Nearby K Dwarfs, and the CHIRON Spectrograph’s Radial Velocity Performance [PDF]
Astronomical Journal, 2021 We report initial results of a large radial velocity survey of K dwarfs up to a distance of 50 pc from the solar system, to look for stellar, brown dwarf, and Jovian planets using radial velocities from the CHIRON spectrograph on the CTIO/SMARTS 1.5 m ...
L. Paredes +7 more
semanticscholar +1 more source
Public HARPS radial velocity database corrected for systematic errors [PDF]
Astronomy & Astrophysics, 2020 Context. The High Accuracy Radial velocity Planet Searcher (HARPS) spectrograph has been mounted since 2003 at the ESO 3.6 m telescope in La Silla and provides state-of-the-art stellar radial velocity (RV) measurements with a precision down to ∼1 m s−1 ...
T. Trifonov +5 more
semanticscholar +1 more source
The Sixth Data Release of the Radial Velocity Experiment (RAVE). I. Survey Description, Spectra, and Radial Velocities [PDF]
Astronomical Journal, 2020 The Radial Velocity Experiment (Rave) is a magnitude-limited (9 < I < 12) spectroscopic survey of Galactic stars randomly selected in Earth’s southern hemisphere.
M. Steinmetz +61 more
semanticscholar +1 more source
Direct confirmation of the radial-velocity planetβPictoris c [PDF]
Astronomy & Astrophysics, 2020 Context.Methods used to detect giant exoplanets can be broadly divided into two categories: indirect and direct. Indirect methods are more sensitive to planets with a small orbital period, whereas direct detection is more sensitive to planets orbiting at
M. Nowak +93 more
semanticscholar +1 more source
Automatic Recognition Algorithm of Convergence Region Based on Relative Storm Radial Velocity Field
应用气象学报, 2021 An algorithm for automatically identifying the mid-altitude radial convergence from the storm-relative radial velocity field is proposed. The algorithm first identifies the positive-negative velocity segments in each radial direction on the single ...
Zhu Li, Kang Lan
doaj +1 more source
On-sky commissioning of MAROON-X: a new precision radial velocity spectrograph for Gemini North [PDF]
Ground-based and Airborne Instrumentation for Astronomy VIII, 2020 MAROON-X is a fiber-fed, red-optical, high precision radial velocity spectrograph recently commissioned at the Gemini North telescope on Mauna Kea, Hawai’i.
A. Seifahrt +12 more
semanticscholar +1 more source