Results 71 to 80 of about 452,681 (253)

Planetary transit observations at the University Observatory Jena: TrES-2

, 2008
We report on observations of several transit events of the transiting planet TrES-2 obtained with the Cassegrain-Teleskop-Kamera at the University Observatory Jena. Between March 2007 and November 2008 ten different transits and almost a complete orbital
Agol, Basri, Broeg, Droege, Freistetter, Galadí-Enríquez, Gössl, Holman, Holman, Høg, Landolt, McCullough, Miralda-Escudé, Mugrauer, Naeye, O'Donovan, Raetz, Sozzetti, Steffen, Tamuz   +19 more
core   +2 more sources

Photometric monitoring of the young star Par 1724 in Orion

, 2009
We report new photometric observations of the 200000 year old naked weak-line run-away T Tauri star Par 1724, located north of the Trapezium cluster in Orion. We observed in the broad band filters B, V, R, and I using the 90cm Dutch telescope on La Silla,
Alekseev, Baliunas, Broeg, Broeg, Burke, Cutispoto, Cutispoto, Cutispoto, Cutispoto, Dworetsky, Galadi-Enriquez, Horne, Jones, Kazarovets, Lafler, Landolt, Lenz, Morel, Mugrauer, Neuhäuser, Parenago, Scargle, Schwabe, Tanner   +23 more
core   +2 more sources

Development of the 174 GHz collective Thomson scattering diagnostics at Wendelstein 7-X.

Review of Scientific Instruments
In this paper, we present the design and commissioning results of the upgraded collective Thomson scattering diagnostic at the Wendelstein 7-X stellarator.
S. Ponomarenko, D. Moseev, T. Stange, L. Krier, P. Stordiau, H. Braune, G. Gantenbein, J. Jelonnek, A. Kuleshov, H. Laqua, C. Lechte, S. Marsen, S. Nielsen, J. Oosterbeek, B. Plaum, R. Ragona, J. Rasmussen, T. Ruess, M. Salewski, M. Thumm, J. Zimmermann   +20 more
semanticscholar   +1 more source

Numerical studies of plasma edge in W7-X with 3D FINDIF code

Nukleonika, 2023
Modelling of the plasma transport for inherently three-dimensional (3D) problems as in stellarators requires dedicated complex codes. FINDIF is a 3D multifluid plasma edge transport code that has been previously successfully used for the analysis of ...
Jabłczyńska Małgorzata, Pełka Grzegorz, Jakubowski Marcin, Ślęczka Marcin   +3 more
doaj   +1 more source

The Wendelstein Calar Alto Pixellensing Project (WeCAPP): the M31 Nova catalogue

, 2011
We present light curves from the novae detected in the long-term, M31 monitoring WeCAPP project. The goal of WeCAPP is to constrain the compact dark matter fraction of the M31 halo with microlensing observations. As a by product we have detected 91 novae
Baernbantner, O., Bender, R., Fliri, J., Goessl, C., Hopp, U., Lee, C. -H., Ries, C., Riffeser, A., Seitz, S.   +8 more
core   +3 more sources

Gas exhaust in the Wendelstein 7-X stellarator during the first divertor operation

Nuclear Fusion, 2022
The optimized superconducting stellarator Wendelstein 7-X (W7-X) is equipped with an island divertor for energy control and efficient pumping. We investigated the performance of the island divertor in terms of gas exhaust.
U. Wenzel, G. Schlisio, P. Drewelow, M. Krychowiak, R. König, T. Pedersen, S. Bozhenkov, V. Haak, A. Kharwandikar, S. Lazerson, D. Naujoks, V. Perseo, V. Winters, the W7-X team   +13 more
semanticscholar   +1 more source

Heat Load Mitigation Studies in the W7‐X Stellarator Experiment

Contributions to Plasma Physics, EarlyView.
ABSTRACT During the experiments at the stellarator Wendelstein 7‐X (W7‐X) with fully water‐cooled plasma‐facing components (PFC), including carbon‐fiber composite (CFC) divertor targets with a thermal load capability of 10 MW/m2, high performance was achieved.
Dirk Naujoks, Amit Kharwandikar, Jasper Dettmar, Michael Endler, Joris Fellinger, Yu Gao, Joachim Geiger, Marcin Jakubowski, Thomas Sieber, Sebastian Thiede, Christian Voß, W7‐X Team   +11 more
wiley   +1 more source

Corneal power modelling with OCT data – Thin and thick lens paraxial models versus raytracing

Acta Ophthalmologica, EarlyView.
Abstract Background Evaluating keratometric power with Zeiss index (PKZ), paraxial thick cornea power (Gullstrand [PG]) and power referenced to the front (PFV) and back vertex plane (PBV) and raytracing power (PR), and modelling the deviation from PKZ with a multivariable linear prediction model.
Achim Langenbucher, Nóra Szentmáry, Alan Cayless, Peter Hoffmann, Jascha Wendelstein   +4 more
wiley   +1 more source

Global gyrokinetic simulations of ITG turbulence in the configuration space of the Wendelstein 7-X stellarator

, 2020
We study the effect of turbulent transport in different magnetic configurations of the Weldenstein 7-X stellarator. In particular, we performed direct numerical simulations with the global gyrokinetic code GENE-3D, modeling the behavior of Ion ...
Di Siena, A., Hindenlang, F., Jenko, F., Maurer, M., Merlo, G., Navarro, A. Bañón, Plunk, G. G., von Stechow, A., Wilms, F., Xanthopoulos, P.   +9 more
core   +1 more source

Wendelstein 7-X

, 2016
Ursprünglich hatte ich vor gut zwei Wochen einen kleinen Blog-Beitrag über Wendelstein 7-X schreiben wollen: Immerhin war Angela Merkel an das Max-Planck-Institut für Plasmaphysik (IPP) Greifswald gereist, um die Versuchsanlage Wendelstein 7-X in Betrieb zu nehmen. Schließlich ist unsere Bundeskanzlerin nicht nur promovierte Physiko-Chemikerin, sondern
openaire   +3 more sources