Results 31 to 40 of about 2,565,021 (373)

First radial velocity results from the MINiature Exoplanet Radial Velocity Array (MINERVA) [PDF]

open access: yes, 2019
The MINiature Exoplanet Radial Velocity Array (MINERVA) is a dedicated observatory of four 0.7m robotic telescopes fiber-fed to a KiwiSpec spectrograph. The MINERVA mission is to discover super-Earths in the habitable zones of nearby stars.
Baker, Ashley D.   +54 more
core   +1 more source

Detection of the nearest Jupiter analogue in radial velocity and astrometry data [PDF]

open access: yesMonthly 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

The BEBOP radial-velocity survey for circumbinary planets [PDF]

open access: yesAstronomy & 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

Extrasolar planets and brown dwarfs around A-F type stars - VII. Theta Cygni radial velocity variations: planets or stellar phenomenon? [PDF]

open access: yes, 2009
(abridged) In the frame of the search for extrasolar planets and brown dwarfs around early-type main-sequence stars, we present the results obtained on the early F-type star Theta Cygni. Elodie and Sophie at OHP were used to obtain the spectra.
A. Eggenberger   +61 more
core   +3 more sources

COMMISSION 30: RADIAL VELOCITIES [PDF]

open access: yesProceedings of the International Astronomical Union, 2008
The past three-year period has seen steady efforts to collect large numbers of radial-velocity (RV) measurements, as well as important applications of radial velocities to astrophysics. Improvements in precision continue to be driven largely by exoplanet research.
Stephane Udry   +11 more
openaire   +6 more sources

EVALUATION OF THE POSSIBILITIES OF PROVIDING THE NECESSARY ACCURACY OF THE RADIAL VELOCITY MEASURING OF A TARGET BY COHERENT-PULSE RADARS OUTSIDE THE LINE OF SIGHT

open access: yesСучасні 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
doaj   +1 more source

Activity-induced radial velocity jitter in a flaring M dwarf [PDF]

open access: yes, 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

MAROON-X: a radial velocity spectrograph for the Gemini Observatory [PDF]

open access: yesAstronomical 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

Confirmation of the radial velocity super-Earth K2-18c with HARPS and CARMENES [PDF]

open access: yesAstronomy & Astrophysics, 2018
In an earlier campaign to characterize the mass of the transiting temperate super-Earth K2-18b with HARPS, a second, non-transiting planet was posited to exist in the system at ~9 days.
Ryan Cloutier   +15 more
semanticscholar   +1 more source

Measurements of the Reynolds stress in the turbulent premixed flame

open access: yesNihon 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
doaj   +1 more source

Home - About - Disclaimer - Privacy