Results 111 to 120 of about 10,047 (199)

An Operational Geomagnetic Baseline Derivation Method for Magnetic Observatories Located in Mid‐Latitudes

Space Weather
Ground magnetic field measurements are an important tool to determine the strength of space weather events in the terrestrial environment on local and global scales. For that purpose, geomagnetic baselines play a vital role as they describe typical quiet
Veronika Haberle, Aurélie Marchaudon, Aude Chambodut, Pierre‐Louis Blelly   +3 more
doaj   +1 more source

Investigating the properties of granulation in the red giants observed by Kepler

, 2011
More than 1000 red giants have been observed by NASA/Kepler mission during a nearly continuous period of ~ 13 months. The resulting high-frequency resolution (< 0.03 muHz) allows us to study the granulation parameters of these stars.
Ballot, Jérôme, Bedding, Timothy R., Buzasi, D. L., Chaplin, William J., de Ridder, Joris, Elsworth, Yvonne P., Garcia, Rafael A., Hale, S. J., Hekker, Saskia, Huber, Daniel, Jimenez, A., Kallinger, Thomas, Kinemuchi, Karen, Kjeldsen, Hans, Lynas-Gray, A. E., Mathur, Savita, Mosser, Benoît, Mullally, Fergal, Regulo, Clara, Stello, Dennis, Takata, M., Thompson, S. E., Trampedach, R.   +22 more
core  

Helio1D modeling of temporal variation of solar wind: Interfacing between MULTI-VP and 1D MHD for future operational forecasting at L1

Journal of Space Weather and Space Climate
Developing an automated pipeline for solar-wind condition prediction upstream of Earth is an important step for transitioning from space weather research to operation.
Kieokaew R., Pinto R.F., Samara E., Tao C., Indurain M., Lavraud B., Brunet A., Génot V., Rouillard A., André N., Bourdarie S., Katsavrias C., Darrouzet F., Grison B., Daglis I.   +14 more
doaj   +1 more source

Les réactions nucléaires importantes en astrophysique

Journal de Physique et le Radium, 1960
On examine les réactions nucléaires importantes pour la compréhension de la production d'énergie et de la composition chimique des étoiles. Nous donnons les énergies dans le système du centre de gravité. (a) Les réactions des étoiles de la séquence principale ont lieu vers quelques keV ; (b) les réactions avec les particules α dans les géantes ont lieu
openaire   +2 more sources

Catalogue of source mechanisms and overview of present-day stress fields in the western region of the Africa–Eurasia plate boundary

Frontiers in Earth Science
Complex deformation is observed along the plate boundary between the Africa and Eurasia plates, this complexity is highlighted by the faulting mechanism changing from normal faulting at the Mid-Atlantic Ridge to thrust and strike-slip faulting in the ...
Farida Ousadou, Abdelhakim Ayadi, Mourad Bezzeghoud   +2 more
doaj   +1 more source

Exocomets size distribution in the [Formula: see text] Pictoris planetary system. [PDF]

Sci Rep, 2022
Lecavelier des Etangs A, Cros L, Hébrard G, Martioli E, Duquesnoy M, Kenworthy MA, Kiefer F, Lacour S, Lagrange AM, Meunier N, Vidal-Madjar A.   +10 more
europepmc   +1 more source

Astrophysique moléculaire : les approches théoriques

, 2015
Workshop Processus physico-chimiques d'intérêt astrophysique, 15 au 18 juin 2015 St Florent (France), Chimie et excitation des hydrures; conferencia ...
openaire   +2 more sources

Multispectral in-line hologram reconstruction with aberration compensation applied to Gram-stained bacteria microscopy. [PDF]

Sci Rep, 2023
Brault D, Olivier T, Faure N, Dixneuf S, Kolytcheff C, Charmette E, Soulez F, Fournier C.   +7 more
europepmc   +1 more source

Astrophysique observationnelle

L’annuaire du Collège de France, 2008
openaire   +5 more sources

ECHANTILLONNAGE COMPRIME POUR LES SIGNAUX ASTROPHYSIQUES

, 2016
La conception d'une architecture de récepteur radio basé sur l'échantillonnage comprimé (compressed sampling CS) nécessite, en premier lieu, de trouver une base de parcimonie appropriée au signal étudié. Dans ce papier, nous analysons un signal astrophysique (signal Jovien de bande passante [0,40 MHz]) en relevant son information utile et nous étudions
Gargouri, Yosra, Petit, Hervé, Loumeau, Patrick, Cecconi, Baptiste, Desgreys, Patricia   +4 more
openaire   +1 more source