Results 101 to 110 of about 2,851,278 (244)

The velocity distribution of nearby stars from Hipparcos data I. The significance of the moving groups

, 2009
We present a three-dimensional reconstruction of the velocity distribution of nearby stars (
Asiain, Baade, Bienaymé, Binney, Binney, Blaauw, Bovy, Bozdogan, Cabrera-Caño, Chaudhuri, Chen, Chereul, Conway, David W. Hogg, Dehnen, Dempster, Eddington, Eggen, Eggen, Eggen, Eggen, Eggen, Eggen, ESA., Figueras, Francis, Gelman, Gerbaldi, Gilmore, Gomez, Grenier, Grünwald, Hogg, Ivezić, Jo Bovy, Johnston, Kapteyn, Kolmogorov, Koposov, Koposov, McDonald, Murenzi, Mädler, Navarro, Ogorodnikov, Ogorodnikov, Oliver, Oliver, Oort, Ormoneit, Plummer, Rasmuson, Sam T. Roweis, Schwarzschild, Schwarzschild, Silverman, Simon, Slezak, Soubiran, Starck, Stone, Tollerud, Tuominen, Ueda, Wallace, Wallace, Wallace, Williams, Williams, Zador, Zhao   +70 more
core   +2 more sources

THE RADIAL VELOCITY EXPERIMENT (RAVE): FIFTH DATA RELEASE [PDF]

, 2013
Data Release 5 (DR5) of the Radial Velocity Experiment (RAVE) is the fifth data release from a magnitude-limited ( ) survey of stars randomly selected in the Southern Hemisphere. The RAVE medium-resolution spectra ( ) covering the Ca-triplet region (8410–
M. Steinmetz, T. Zwitter, A. Siebert, F. Watson, K. Freeman, U. Munari, R. Campbell, M. Williams, G. Seabroke, R. Wyse, Q. Parker, O. Bienaymé, S. Roeser, B. Gibson, G. Gilmore, E. Grebel, A. Helmi, J. Navarro, D. Burton, C. Cass, J. Dawe, K. Fiegert, M. Hartley, K. Russell, W. Saunders, H. Enke, J. Bailin, J. Binney, J. Bland-Hawthorn, C. Boeche, W. Dehnen, D. Eisenstein, N. Evans, M. Fiorucci, J. Fulbright, O. Gerhard, U. Jauregi, A. Kelz, L. Mijović, I. Minchev, G. Parmentier, J. Peñarrubia, A. Quillen, M. Read, G. Ruchti, R. Scholz, A. Siviero, M. Smith, R. Sordo, L. Veltz, S. Vidrih, R. V. Berlepsch, B. Boyle, E. Schilbach   +53 more
semanticscholar   +1 more source

HD 119130 b Is Not an “Ultradense” Sub-Neptune

The Astronomical Journal
We present a revised mass measurement for HD 119130 b (aka K2-292 b), a transiting planet ( P = 17 days, R _p = ${2.63}_{-0.10}^{+0.11}$ R _⊕ ) orbiting a chromospherically inactive G dwarf, previously thought to be one of the densest sub-Neptunes known.
Joseph M. Akana Murphy, Rafael Luque, Natalie M. Batalha, Ilaria Carleo, Enric Palle, Madison Brady, Benjamin Fulton, Luke B. Handley, Howard Isaacson, Gaia Lacedelli, Felipe Murgas, Grzegorz Nowak, J. Orell-Miquel, Hannah L. M. Osborne, Vincent Van Eylen, María Rosa Zapatero Osorio   +15 more
doaj   +1 more source

Fluid-mechanical structure of a turbulent premixed V flame

Nihon Kikai Gakkai ronbunshu, 2015
The flow field of a turbulent premixed V flame has been closely examined by using a three-color six-beam LDV system. A bi-modal distribution, composed of the velocity fluctuations of both the high velocity mode and the low velocity mode, is observed ...
Yasuko YOSHIDA, Junichi FURUKAWA
doaj   +1 more source

Radial velocity eclipse mapping of exoplanets [PDF]

, 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   +2 more sources

Characterizing a cluster's dynamic state using a single epoch of radial velocities

, 2012
Radial velocity measurements can be used to constrain the dynamical state of a stellar cluster. However, for clusters with velocity dispersions smaller than a few km/s the observed radial velocity distribution tends to be dominated by the orbital motions
Adams, Baumgardt, Blecha, Bonatto, Chabrier, Chini, Cottaar, Davis, Geller, Geller, Geller, Geller, Gieles, Gunn, Hénault-Brunet, Janson, King, Kleyna, Kouwenhoven, Kouwenhoven, Kroupa, Lada, M. Cottaar, M. R. Meyer, Marigo, Marks, McConnachie, Odenkirchen, Parker, Parker, Platais, R. J. Parker, Raghavan, Reggiani, Robin, Sarajedini, Sollima, Tobin, van de Ven, von Hippel, Zinnecker   +40 more
core   +1 more source

The Impact of Observing Cadence and Undetected Companions on the Accuracy of Planet Mass Measurements from Radial Velocity Monitoring

The Astronomical Journal
We conduct experiments on both real and synthetic radial velocity (RV) data to quantify the impact that observing cadence, the number of RV observations, and undetected companions all have on the accuracy of small planet mass measurements.
Joseph M. Akana Murphy, Rafael Luque, Natalie M. Batalha   +2 more
doaj   +1 more source

VELOcities of CEpheids (VELOCE) [PDF]

Astronomy & Astrophysics
We present the first data release of VELOcities of CEpheids (VELOCE), dedicated to measuring the high-precision radial velocities (RVs) of Galactic classical Cepheids (henceforth, Cepheids). The first data release (VELOCE DR1) comprises 18 225 RV measurements of 258 bona fide classical Cepheids on both hemispheres collected mainly between 2010 and 2022,
Anderson, Richard I., Viviani, Giordano, Shetye, Shreeya S., Mowlavi, Nami, Eyer, Laurent, Palaversa, Lovro, Holl, Berry, Blanco-Cuaresma, Sergi, Kravchenko, Kateryna, Pawlak, Michal, Reyes, Mauricio Cruz, Khan, Saniya, Netzel, Henryka E., Loebling, Lisa, Papics, Peter I., Postel, Andreas, Roelens, Maroussia, Spetsieri, Zoi T., Thoul, Anne, Zak, Jiri, Bonvin, Vivien, Martin, David V., Millon, Martin, Saesen, Sophie, Wyttenbach, Aurelien, Figueira, Pedro, Marmier, Maxime, Prins, Saskia, Raskin, Gert, van Winckel, Hans   +29 more
openaire   +7 more sources

SOAP 2.0: A TOOL TO ESTIMATE THE PHOTOMETRIC AND RADIAL VELOCITY VARIATIONS INDUCED BY STELLAR SPOTS AND PLAGES [PDF]

, 2014
This paper presents SOAP 2.0, a new version of the Spot Oscillation And Planet (SOAP) code that estimates in a simple way the photometric and radial velocity (RV) variations induced by active regions.
X. Dumusque, X. Dumusque, I. Boisse, N. Santos   +3 more
semanticscholar   +1 more source

An RTK UAV-Based Method for Radial Velocity Validation of Weather Radar

Remote Sensing
The quality of weather radar affects the reliability and effectiveness of monitoring severe convective weather. Therefore, rigorous calibration and validation are the foundation for the quantitative application of weather radar.
Yubao Chen, Lu Li, Fei Ye, Boshi Kang, Xiaopeng Wang, Zhichao Bu, Moyan Zhu, Qian Yang, Nan Shao, Jianyun Zhang   +9 more
doaj   +1 more source