Results 121 to 130 of about 2,851,278 (244)

Radial velocity follow-up of CoRoT transiting exoplanets

EPJ Web of Conferences, 2011
We report on the results from the radial-velocity follow-up program performed to establish the planetary nature and to characterize the transiting candidates discovered by the space mission CoRoT.
Deleuil M., Moutou C., Bouchy F., Hatzes A., Santerne A., Endl M.   +5 more
doaj   +1 more source

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

, 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 ...
Glushkova, E. V., Johnson, J. A., Levato, H., Nordström, B., Pourbaix, D., Torres, G., Torres, G., Udry, S.   +7 more
core   +1 more source

INVESTIGATION OF THE RADIAL VELOCITY OF A LOW-PRESSURE HYDROCYCLONE CLARIFIER OF SURFACE RUNOFF WATERS

Мелиорация и гидротехника
Purpose: substantiate the design and technological parameters of hydrocyclones-clarifiers by means of a detailed study of the radial velocity in significant sections, namely, at the transition from the cylindrical to the conical part of the apparatus, in
Georgy V. Degtyarev, Olga G. Degtyareva, Oleg O. Nikolov   +2 more
doaj   +1 more source

Measuring Stellar Radial Velocities with a Dispersed Fixed-Delay Interferometer

, 2008
We demonstrate the ability to measure precise stellar barycentric radial velocities with the dispersed fixed-delay interferometer technique using the Exoplanet Tracker (ET), an instrument primarily designed for precision differential Doppler velocity ...
Andrew Vanden Heuvel, Curtis DeWitt, Dravins D., Gorskii S. M., Helmi A., Jian Ge, Julian van Eyken, Justin Crepp, Kozhevatov I. E., Roger Cohen, Scott W. Fleming, Suvrath Mahadevan, Weinberg D. H.   +12 more
core   +1 more source

Signals embedded in the radial velocity noise*

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   +1 more source

A Catalogue of Galaxies Having Radial Velocities: Volume 15: Part 7 [PDF]

A tabulation of galaxies which have radial velocities is presented. The parameters of each galaxy are: (1) an abbreviation for the catalog designation, (2) RA(1950), (3) Dec.
Fredrick, L. W., Gutsch, W. A.
core   +1 more source

Do stellar magnetic cycles influence the measurement of precise radial velocities?

, 2010
The ever increasing level of precision achieved by present and future radial-velocity instruments is opening the way to discovering very low-mass, long-period planets (e.g. solar-system analogs).
Boisse, Bonfils, Bouchy, Brandt, C. Lovis, C. Melo, Cincunegui, Danks, Dravins, Duquennoy, Fernandes, Flower, Golimowski, Halbwachs, Heintz, Huélamo, J. Gomes da Silva, Kürster, Landman, Livingston, Livingston, Lépine, Mayor, Mayor, McMillan, Melo, Meunier, N. C. Santos, Noyes, Paulson, Pepe, Queloz, Queloz, Saar, Saar, Saar, Santos, Santos, Santos, Schaerer, Schaerer, Schaller, Sousa, Tokovinin, Udry, Vaughan, Vaughan, Wright   +47 more
core   +1 more source

Scaling laws of flow structures around geometrically similar fire whirls

Journal of Thermal Science and Technology, 2019
This paper discusses the scaling laws of the flow structures around geometrically similar fire whirls, an insight that will be necessary when applying laboratory-scale data to real-scale fire whirls in urban or wildland fires.
Rikiya YAMADA, Kazunori KUWANA
doaj   +1 more source

WIYN Open Cluster Study. XC. Radial-velocity Measurements and Spectroscopic Binary Orbits in the Open Cluster NGC 2506

The Astronomical Journal
NGC 2506 is a rich, intermediate-age (2.0 Gyr), metal-poor ([Fe/H] ∼ −0.2) open cluster. This work presents the results of 12,157 spectroscopic radial-velocity measurements of 2442 stars in the NGC 2506 field obtained over 41 yr, made as part of the WIYN
Evan Linck, Robert D. Mathieu, David W. Latham   +2 more
doaj   +1 more source

Extragalactic planetary nebulae as mass tracers: biases in the estimate of dynamical quantities [PDF]

, 1999
Planetary Nebulae (PNe) are very important kinematical tracers of the outer regions of early-type galaxies, where the integrated light techniques fail. Under ad hoc assumptions, they allow measurements of rotation velocity and velocity dispersion profile
Arnaboldi, M., Capaccioli, M., Napolitano, N.   +2 more
core   +1 more source