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
TOI 560: Two Transiting Planets Orbiting a K Dwarf Validated with iSHELL, PFS, and HIRES RVs
The Astronomical Journal, 2022 We validate the presence of a two-planet system orbiting the 0.15–1.4 Gyr K4 dwarf TOI 560 (HD 73583). The system consists of an inner moderately eccentric transiting mini-Neptune (TOI 560 b, $P={6.3980661}_{-0.0000097}^{+0.0000095}$ days, $e={0.294}_{-0.
Mohammed El Mufti +95 more
doaj +1 more source
Correction of Dual-PRF Velocity for Operational S-Band Doppler Weather Radar
Remote Sensing, 2023 The Weather Radar Center (WRC) of the Korea Meteorological Administration (KMA) has been providing three-dimensional radar wind fields based on the “WInd Synthesis System using Doppler Measurements (WISSDOM)” in real time since February 2019.
So-Yeon Park +2 more
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
Precise Radial Velocities and Radial Velocity Standards [PDF]
Symposium - International Astronomical Union, 1985 By imposing absorption lines of HF in stellar spectra we can measure changes in r.v. with a precision of ~10m/s from a single spectrum, provided stellar line profiles are not distorted by atmospheric motions. The precision of absolute radial velocities is currently limited to ~100m/s by knowledge of rest wavelengths.
G. A. H. Walker +3 more
openaire +1 more source
Three years of HARPS-N high-resolution spectroscopy and precise radial velocity data for the Sun [PDF]
Astronomy & Astrophysics, 2020 Context. The solar telescope connected to HARPS-N has been observing the Sun since the summer of 2015. Such a high-cadence, long-baseline data set is crucial for understanding spurious radial-velocity signals induced by our Sun and by the instrument.
X. Dumusque +37 more
semanticscholar +1 more source
A wide star–black-hole binary system from radial-velocity measurements [PDF]
Nature, 2019 All stellar-mass black holes have hitherto been identified by X-rays emitted from gas that is accreting onto the black hole from a companion star. These systems are all binaries with a black-hole mass that is less than 30 times that of the Sun1–4. Theory
Jifeng Liu +54 more
semanticscholar +1 more source