Results 41 to 50 of about 2,481,024 (387)
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
doaj +1 more source
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
Radial Velocities of 368 Helium Stars [PDF]
Proceedings of the National Academy of Sciences, 1926 Edwin B. Frost +2 more
openaire +6 more sources
The BEBOP radial-velocity survey for circumbinary planets [PDF]
Astronomy & Astrophysics, 2019 We introduce the BEBOP radial velocity survey for circumbinary planets. We initiated this survey using the CORALIE spectrograph on the Swiss Euler Telescope at La Silla, Chile.
D. Martin +10 more
semanticscholar +1 more source
MAROON-X: a radial velocity spectrograph for the Gemini Observatory [PDF]
Astronomical Telescopes + Instrumentation, 2018 MAROON-X is a red-optical, high precision radial velocity spectrograph currently nearing completion and undergoing extensive performance testing at the University of Chicago.
A. Seifahrt +3 more
semanticscholar +1 more source
Velocity and velocity bounds in static spherically symmetric metrics [PDF]
, 2006 We find simple expressions for velocity of massless particles in dependence of the distance $r$ in Schwarzschild coordinates. For massive particles these expressions put an upper bound for the velocity.
Arraut, I., Batic, D., Nowakowski, M.
core +5 more sources
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 +11 more sources
Quantifying the Bayesian Evidence for a Planet in Radial Velocity Data [PDF]
Astronomical Journal, 2018 We present results from a data challenge posed to the radial velocity (RV) community: namely, to quantify the Bayesian “evidence” for n = {0, 1, 2, 3} planets in a set of synthetically generated RV data sets containing a range of planet signals ...
B. Nelson +8 more
semanticscholar +1 more source
Activity-induced radial velocity jitter in a flaring M dwarf [PDF]
, 2008 We investigate the effect of stellar activity and flares on short-term radial velocity measurements in the mid-M flare star CN Leo. Radial velocity variations are calculated from 181 UVES spectra obtained during three nights.
A. Reiners +17 more
core +2 more sources
Spectrum radial velocity analyser (SERVAL). High-precision radial velocities and two alternative spectral indicators [PDF]
, 2017 Context: The CARMENES survey is a high-precision radial velocity (RV) programme that aims to detect Earth-like planets orbiting low-mass stars. Aims: We develop least-squares fitting algorithms to derive the RVs and additional spectral diagnostics ...
M. Zechmeister +20 more
semanticscholar +1 more source