Results 31 to 40 of about 2,549,521 (376)

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

, 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., Barnes, Stuart I., Beatty, Thomas G., Berlind, Perry, Blackhurst, Eric, Blake, Cullen H., Bolton, Adam S., Bottom, Michael, Cale, Bryson, Calkins, Michael L., Colón, Ana, Cornachione, Matthew A., de Saintonge, Forest Chaput, de Vera, Jon, Eastman, Jason D., Esquerdo, Gilbert, Falco, Emilio E., Fortin, Pascal, Garcia-Mejia, Juliana, Geneser, Claire, Gibson, Steven R., Grell, Gabriel, Groner, Ted, Halverson, Samuel, Hamlin, John, Henderson, M., Horner, J., Houghton, Audrey, Janssens, Stefaan, Johnson, John Asher, Johnson, Samson A., Jonas, Graeme, Jones, Damien, Kirby, Annie, Lawrence, George, Luebbers, Julien Andrew, McCrady, Nate, Morton, Timothy D., Muirhead, Philip S., Myles, Justin, Nava, Chantanelle, Plavchan, Peter, Reed, Tony, Relles, Howard M., Riddle, Reed, Rivera-García, Kevin O, Robinson, Connor, Schap III, William J., Sergi, Anthony, Sliski, David H., Swift, Jonathan J., Wang, Sharon X., Wilson, Maurice L., Wittenmyer, Robert A., Wright, Jason T.   +54 more
core   +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, J. Stürmer, J. Bean, C. Schwab   +3 more
semanticscholar   +1 more source

Radial Velocity Measurements of HR 8799 b and c with Medium Resolution Spectroscopy [PDF]

Astronomical Journal, 2019
High-contrast medium resolution spectroscopy has been used to detect molecules such as water and carbon monoxide in the atmospheres of gas giant exoplanets.
J. Ruffio, B. Macintosh, Q. Konopacky, T. Barman, R. D. de Rosa, Jason J. Wang, K. Hoch, I. Czekala, C. Marois   +8 more
semanticscholar   +1 more source

The fundamental definition of “radial velocity” [PDF]

Astronomy & Astrophysics, 2003
19 pages, 1 figure.
Lindegren, Lennart, Dravins, Dainis
openaire   +3 more sources

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

, 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, A. Vidal-Madjar, A.-M. Lagrange, B. Loeillet, Baraffe, Baranne, Boss, C. Lovis, C. Moutou, C. Perrier, Chelli, D. Ehrenreich, D. Queloz, D. Ségransan, Deming, Desort, Desort, Dommanget, Doyon, Erspamer, F. Bouchy, F. Galland, F. Pepe, F. Pont, G. Hébrard, G. Montagnier, Galland, Galland, Galland, Galland, Gray, Gray, H. Beust, Hartkopf, Hatzes, Hatzes, Högbom, I. Boisse, Ida, Johnson, Johnson, Kennedy, Kürster, Lagrange, Laughlin, Lovis, M. Desort, M. Mayor, Mathias, Márquez, N. C. Santos, N. Meunier, Niedzielski, Pepe, Rigaut, S. Udry, Sato, T. Forveille, van Leeuwen, X. Bonfils, X. Delfosse, Yoder   +61 more
core   +3 more sources

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

Astronomy & 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.
R. Cloutier, N. Astudillo-Defru, R. Doyon, X. Bonfils, J. Almenara, F. Bouchy, X. Delfosse, T. Forveille, C. Lovis, M. Mayor, K. Menou, F. Murgas, F. Pepe, N. Santos, S. Udry, A. Wünsche   +15 more
semanticscholar   +1 more source

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

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, Vladimir Karlov, Valentin Petrushenko, Oksana Biesova, Olena Lukashuk   +4 more
doaj   +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, Balthasar, Bonfils, Butler, Demory, Desort, Fuhrmeister, Kürster, Lacy, Pepe, Reiners, Reiners, Saar, Selsis, Short, Tarter, von Bloh, West   +17 more
core   +2 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, A. Triaud, S. Udry, M. Marmier, P. Maxted, A. Cameron, C. Hellier, F. Pepe, D. Pollacco, D. Ségransan, R. West   +10 more
semanticscholar   +1 more source

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, Hiroshi SAITO, Hideki HASHIMOTO, Junichi FURUKAWA   +3 more
doaj   +1 more source