Results 21 to 30 of about 2,549,521 (376)
Research on Tangential Velocity Solution and Accuracy Analysis of Radar Target [PDF]
MATEC Web of Conferences, 2023 In this paper, a calculation method for the tangential velocity solution of radar target based on linear vector method is proposed. It makes full use of the advantage of high precision radial velocity measurement of radar, and realizes the accurate ...
Yin Qi +3 more
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Overfitting Affects the Reliability of Radial Velocity Mass Estimates of the V1298 Tau Planets
The Astronomical Journal, 2023 Mass, radius, and age measurements of young (≲100 Myr) planets have the power to shape our understanding of planet formation. However, young stars tend to be extremely variable in both photometry and radial velocity (RV) measurements, which makes ...
Sarah Blunt +25 more
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Alexandria Engineering Journal, 2023 This paper presents a study on the influence of inlet radial angle in a multi-inlet cyclone separator using Eulerian-Lagrangian (EL) fluid dynamics approach. The investigation focuses on the behavior of air and solid particles within the cyclone.
Ibrahim Ademola Fetuga +9 more
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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
Hemodynamic Data Analysis and Site of Measurement in Children and Adolescents
Artery Research, 2020 Pulse wave velocity is a method of functional vascular evaluation. The gold standard is the carotid-femoral pulse wave velocity measurement. However, the software allows measurement among radial, carotid and femoral artery.
Mirjam Močnik, Nataša Marčun Varda
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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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Allesfitter: Flexible Star and Exoplanet Inference from Photometry and Radial Velocity [PDF]
Astrophysical Journal Supplement Series, 2019 We present allesfitter, a public and open-source Python software for flexible and robust inference of stars and exoplanets given photometric and radial velocity data.
M. Gunther, T. Daylan
semanticscholar +1 more source
Three years of Sun-as-a-star radial-velocity observations on the approach to solar minimum [PDF]
Monthly notices of the Royal Astronomical Society, 2019 The time-variable velocity fields of solar-type stars limit the precision of radial-velocity determinations of their planets’ masses, obstructing detection of Earth twins.
A. Cameron +36 more
semanticscholar +1 more source
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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Detection of the nearest Jupiter analogue in radial velocity and astrometry data [PDF]
Monthly notices of the Royal Astronomical Society, 2019 The presence of Jupiter is crucial to the architecture of the Solar system and models underline this to be a generic feature of planetary systems. We find the detection of the difference between the position and motion recorded by the contemporary ...
F. Feng +6 more
semanticscholar +1 more source