Results 11 to 20 of about 2,571,706 (401)

Radial velocity observations of VB10 [PDF]

EPJ Web of Conferences, 2011
VB 10 is the smallest star known to harbor a planet according to the recent astrometric study of Pravdo & Shaklan [1]. Here we present near-infrared (J-band) radial velocity of VB 10 performed from high resolution (R~20,000) spectroscopy (NIRSPEC/KECK II)
Rodler F., Burgo C. del, Osorio M.R. Zapatero, Martin E., Deshpande R., Montgomery M.M.   +5 more
doaj   +3 more sources

Report of IAU Commission 30 on Radial Velocities (2006-2009) [PDF]

arXiv, 2008
Brief summaries are given on the following subjects: Radial velocities and exoplanets (Toward Earth-mass planets; Retired A stars and their planets; Current status and prospects); Toward higher radial velocity precision; Radial velocities and asteroseismology; Radial velocities in Galactic and extragalactic clusters; Radial velocities for field giants;
Glushkova, E. V., Johnson, J. A., Levato, H., Nordström, B., Pourbaix, D., Torres, G., Torres, G., Udry, S.   +7 more
arxiv   +4 more sources

RadVel: The Radial Velocity Modeling Toolkit [PDF]

, 2018
RadVel is an open source Python package for modeling Keplerian orbits in radial velocity (RV) time series. RadVel provides a convenient framework to fit RVs using maximum a posteriori optimization and to compute robust confidence intervals by sampling ...
Blunt, Sarah, Fulton, Benjamin J., Petigura, Erik A., Sinukoff, Evan   +3 more
core   +4 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. Our dedicated radial-velocity measurement method was used to monitor the star's radial velocities over five ...
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
arxiv   +5 more sources

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

Publications of the Astronomical Society of the Pacific, 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   +6 more sources

Reconstructing the solar integrated radial velocity using MDI/SOHO [PDF]

, 2010
Searches for exoplanets with radial velocity techniques are increasingly sensitive to stellar activity. It is therefore crucial to characterize how this activity influences radial velocity measurements in their study of the detectability of planets in these conditions.
A.-M. Lagrange, Brandt, Brookes, D'Odorico, Deming, Gabriel, Gray, Jimenez, Lagrange, M. Desort, McMillan, Meunier, Miller, Morinaga, N. Meunier, Scherrer, Solanki, Ulrich, Wachter, Wang   +19 more
arxiv   +5 more sources

Radial-velocity fitting challenge - II. First results of the analysis of the data set [PDF]

, 2016
This document is the Accepted Manuscript of the following article: X. Dumusque, et al, 'Radial-velocity fitting challenge II. First results of the analysis of the data set', Astronomy & Astrophysics, Vol.
X. Dumusque, X. Dumusque, F. Borsa, M. Damasso, R. F. Díaz, P. Gregory, N. Hara, A. Hatzes, V. Rajpaul, M. Tuomi, S. Aigrain, G. Anglada-Escudé, G. Anglada-Escudé, A. Bonomo, G. Boué, F. Dauvergne, G. Frustagli, P. Giacobbe, R. Haywood, H. R. Jones, J. Laskar, M. Pinamonti, M. Pinamonti, E. Poretti, M. Rainer, D. Ségransan, A. Sozzetti, S. Udry   +27 more
semanticscholar   +6 more sources

Long-lived, long-period radial velocity variations in Aldebaran: A planetary companion and stellar activity [PDF]

, 2015
We investigate the nature of the long-period radial velocity variations in Alpha Tau first reported over 20 years ago. We analyzed precise stellar radial velocity measurements for Alpha Tau spanning over 30 years.
Cochran, W. D., Doellinger, M., Endl, M., Girardi, L., Guenther, E. W., Han, I., Hartmann, M., Hatzes, A. P., Kim, K. -M., Larson, A. M., Lee, B. -C., MacQueen, P., Mkrtichian, D. E., Simon, A. E., Walker, G. A. H., Yang, S., Zechmeister, M.   +16 more
core   +2 more sources

Radial velocity eclipse mapping of exoplanets [PDF]

The Astrophysical Journal, 2015
Planetary rotation rates and obliquities provide information regarding the history of planet formation, but have not yet been measured for evolved extrasolar planets.
Barnes J. W., Correia A. C. M., Cowan N. B., Cox A. N., de Pater I., Faure G., Felix Sainsbury-Martinez, Fujii Y., Guillot T., Heller R., Hirano T., Hui L., Kataria T., Kawahara H., Kawahara H., Mandel K., Markwardt C. B., Murray C. D, Nikolay Nikolov, Ohta Y., Pallé E., Paz-Chinchón F., Seager S., Winn J. N.   +23 more
core   +6 more sources

Signals embedded in the radial velocity noise* [PDF]

EPJ Web of Conferences, 2013
Bayesian data analysis techniques, together with suitable statistical models, can be used to obtain much more information from noisy data than the traditional frequentist methods.
Tuomi Mikko
doaj   +4 more sources