Results 21 to 30 of about 61,546 (296)
Turbulence characterization from a forward-looking nacelle lidar [PDF]
Wind Energy Science, 2017 We present two methods to characterize turbulence in the turbine inflow using radial velocity measurements from nacelle-mounted lidars. The first uses a model of the three-dimensional spectral velocity tensor combined with a model of the spatial ...
A. Peña, J. Mann, N. Dimitrov
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On the Accuracy of Gaia Radial Velocities [PDF]
Open Astronomy, 2001 12 pages, 2 figures, 5 tables, in press in Baltic ...
L. Tomasella, P. Agnolin, U. Munari
openaire +4 more sources
The TESS-Keck Survey. XVI. Mass Measurements for 12 Planets in Eight Systems
The Astronomical Journal, 2023 With JWST’s successful deployment and unexpectedly high fuel reserves, measuring the masses of sub-Neptunes transiting bright, nearby stars will soon become the bottleneck for characterizing the atmospheres of small exoplanets via transmission ...
Joseph M. Akana Murphy +47 more
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Tachoastrometry: astrometry with radial velocities [PDF]
Astronomy & Astrophysics, 2015 Spectra of composite systems (e.g., spectroscopic binaries) contain spatial information that can be retrieved by measuring the radial velocities (i.e., Doppler shifts) of the components in four observations with the slit rotated by 90 degrees in the sky.
L. Pasquini +6 more
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Imaging radial velocity planets with SPHERE [PDF]
Monthly Notices of the Royal Astronomical Society, 2018 We present observations with the planet finder SPHERE of a selected sample of the most promising radial velocity (RV) companions for high-contrast imaging. Using a Monte Carlo simulation to explore all the possible inclinations of the orbit of wide RV companions, we identified the systems with companions that could potentially be detected with SPHERE ...
T. Schmidt +40 more
openaire +9 more sources
Сучасні інформаційні системи, 2019 The purpose of the article. The article estimates the possible values of the components of the mean-square error of measuring the radial velocity of the target which appear as a result of fluctuations of the phase of the radio signal outside the radar ...
Oleksandr Kuznietsov +4 more
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Measurements of the Reynolds stress in the turbulent premixed flame
Nihon Kikai Gakkai ronbunshu, 2021 It has been shown in our previous study that the bi-modal distribution is seen in the radial component of the gas velocity obtained in the turbulent flame brush, implying that the shear component of the Reynolds stress conditioned on the unburnt mixture ...
Nobuhiro MAKITA +3 more
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GAIA SPECTROSCOPY AND RADIAL VELOCITIES [PDF]
EAS Publications Series, 2002 proceedings of Les Houches 2001 summer school "GAIA, an European Space Project", published by Editions De Physique, 14 ...
openaire +3 more sources
Journal of Fluid Science and Technology, 2014 In this study, the Schmidt number dependence of the scalar statistics and velocity-scalar joint statistics is investigated experimentally in a liquid axisymmetric jet.
Toshiki TAKEICHI +5 more
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AESTRA: Deep Learning for Precise Radial Velocity Estimation in the Presence of Stellar Activity
The Astronomical Journal, 2023 Stellar activity interferes with precise radial velocity measurements and limits our ability to detect and characterize planets, in particular Earth-like planets.
Yan Liang +2 more
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