Zobrazeno 1 - 10
of 20
pro vyhledávání: '"Löptien, Björn"'
Autor:
Löptien, Björn, Gizon, Laurent, Birch, Aaron C., Schou, Jesper, Proxauf, Bastian, Duvall Jr., Thomas L., Bogart, Richard S., Christensen, Ulrich R.
Publikováno v:
Nature Astronomy (2018)
The Sun's complex dynamics is controlled by buoyancy and rotation in the convection zone and by magnetic forces in the atmosphere and corona. While small-scale solar convection is well understood, the dynamics of large-scale flows in the solar convec
Externí odkaz:
http://arxiv.org/abs/1805.07244
Autor:
Löptien, Björn
Die effiziente Kompression von Daten wird eine wichtige Rolle für mehrere bevorste- hende und geplante Weltraummissionen spielen, die Helioseismologie betreiben werden, wie beispielsweise Solar Orbiter. Solar Orbiter ist die nächste Mission, die He
Externí odkaz:
http://hdl.handle.net/11858/00-1735-0000-0023-9651-D
Autor:
Birch, Aaron C., Schunker, Hannah, Braun, Douglas C., Cameron, Robert, Gizon, Laurent, Löptien, Björn, Rempel, Matthias
Publikováno v:
Sci. Adv. 2, e1600557 (2016)
Magnetic field emerges at the surface of the Sun as sunspots and active regions. This process generates a poloidal magnetic field from a rising toroidal flux tube, it is a crucial but poorly understood aspect of the solar dynamo. The emergence of mag
Externí odkaz:
http://arxiv.org/abs/1607.05250
Publikováno v:
A&A 587, A9 (2016)
Context. Several upcoming and proposed space missions, such as Solar Orbiter, will be limited in telemetry and thus require data compression. Aims. We test the impact of data compression on local correlation tracking (LCT) of time-series of continuum
Externí odkaz:
http://arxiv.org/abs/1512.03243
Publikováno v:
A&A 571, A42 (2014)
Context. Several upcoming helioseismology space missions are very limited in telemetry and will have to perform extensive data compression. This requires the development of new methods of data compression. Aims. We give an overview of the influence o
Externí odkaz:
http://arxiv.org/abs/1409.4176
Autor:
Löptien, Björn, Birch, Aaron C., Gizon, Laurent, Schou, Jesper, Appourchaux, Thierry, Rodríguez, Julián Blanco, Cally, Paul S., Dominguez-Tagle, Carlos, Gandorfer, Achim, Hill, Frank, Hirzberger, Johann, Scherrer, Philip H., Solanki, Sami K.
The Solar Orbiter mission, to be launched in July 2017, will carry a suite of remote sensing and in-situ instruments, including the Polarimetric and Helioseismic Imager (PHI). PHI will deliver high-cadence images of the Sun in intensity and Doppler v
Externí odkaz:
http://arxiv.org/abs/1406.5435
Autor:
Nagashima, Kaori, Löptien, Björn, Gizon, Laurent, Birch, Aaron C., Cameron, Robert, Couvidat, Sebastien, Danilovic, Sanja, Fleck, Bernhard, Stein, Robert
Publikováno v:
Solar Physics 289 (2014) 3457
The Solar Dynamics Observatory/Helioseismic and Magnetic Imager (SDO/HMI) filtergrams, taken at six wavelengths around the Fe I 6173.3 {\AA} line, contain information about the line-of-sight velocity over a range of heights in the solar atmosphere. M
Externí odkaz:
http://arxiv.org/abs/1404.3569
Autor:
Nagashima, Kaori, Gizon, Laurent, Birch, Aaron, Löptien, Björn, Couvidat, Sebastien, Fleck, Bernhard
Publikováno v:
ASP Conf. Ser., Vol.479, 2013, p.429
We study Doppler velocity measurements at multiple heights in the solar atmosphere using a set of six filtergrams obtained by the Helioseismic magnetic Imager on board the Solar Dynamics Observatory. There are clear and significant phase differences
Externí odkaz:
http://arxiv.org/abs/1401.3182
Autor:
Schuh, Sonja, Silvotti, Roberto, Lutz, Ronny, Loeptien, Bjoern, Green, Elizabeth M., Ostensen, Roy H., Leccia, Silvio, Kim, Seung-Lee, Fontaine, Gilles, Charpinet, Stephane, Francoeur, Myriam, Randall, Suzanna, Rodriguez-Lopez, Cristina, van Grootel, Valerie, Odell, Andrew P., Paparo, Margit, Bognar, Zsofia, Papics, Peter, Nagel, Thorsten, Beeck, Benjamin, Hundertmark, Markus, Stahn, Thorsten, Dreizler, Stefan, Hessman, Frederic V., Dall'Ora, Massimo, Mancini, Dario, Cortecchia, Fausto, Benatti, Serena, Claudi, Riccardo, Janulis, Rimvydas
In 2007, a companion with planetary mass was found around the pulsating subdwarf B star V391 Pegasi with the timing method, indicating that a previously undiscovered population of substellar companions to apparently single subdwarf B stars might exis
Externí odkaz:
http://arxiv.org/abs/1005.3461
Autor:
Löptien, Björn1, Birch, Aaron2, Gizon, Laurent gizon@mps.mpg.de, Schou, Jesper2, Appourchaux, Thierry3, Blanco Rodríguez, Julián4, Cally, Paul5, Dominguez-Tagle, Carlos3, Gandorfer, Achim2, Hill, Frank6, Hirzberger, Johann2, Scherrer, Philip7, Solanki, Sami2
Publikováno v:
Space Science Reviews. Dec2015, Vol. 196 Issue 1-4, p251-283. 33p.
