Similarities of magnetoconvection in the umbra and in the penumbra of sunspots

Autor: Andreas Lagg, Björn Löptien, M. van Noort, Sami K. Solanki

Context. It is unclear why there is a rather sharp boundary in sunspots between the umbra and the penumbra. Both regions exhibit magnetoconvection, manifesting in penumbral filaments in the penumbra and in umbral dots in the umbra. Aims. Here we comp

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::da506a640f8dbcbb27f708fd53ed40c1
http://arxiv.org/abs/2110.01352

Inferring magnetic helicity spectrum in spherical domains: the method and example applications

Autor: Maarit J. Käpylä, A. Prabhu, N. K. Singh, Andreas Lagg

Obtaining observational constraints on the role of turbulent effects for the solar dynamo is a difficult, yet crucial, task. Without such knowledge, the full picture of the operation mechanism of the solar dynamo cannot be formed. The magnetic helici

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::86a0d454dbef86567054cbd4e8bb26f2

Sunrise Chromospheric Infrared SpectroPolarimeter (SCIP) for sunrise III: system design and capability

Autor: C. Quintero Noda, Andreas Lagg, Shin Nagata, Sami K. Solanki, J. C. del Toro Iniesta, Yusuke Kawabata, Yukio Katsukawa, Ryoko Ishikawa, Yoshinori Suematsu, A. C. López Jiménez, Achim Gandorfer, Kiyoshi Ichimoto, Ryohei Kano, M. Balaguer Jiménez, Tetsu Anan, Kazuya Shinoda, J. P. Cobos Carrascosa, Toshifumi Shimizu, Tomohiro Tamura, Hirohisa Hara, D. Orozco Suárez, M. Kubo, Fumihiro Uraguchi, Alex Feller, Yoshifumi Nodomi, T. Matsumoto, T. Oba, T. L. Riethmueller, Toshihiro Tsuzuki

Publikováno v: Ground-based and Airborne Instrumentation for Astronomy VIII.

The Sunrise balloon-borne solar observatory carries a 1 m aperture optical telescope and provides us a unique platform to conduct continuous seeing-free observations at UV-visible-IR wavelengths from an altitude of higher than 35 km. For the next fli

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ef931f5a2253c8a975f55e0b68b6b2f5
https://doi.org/10.1117/12.2561223

The Solar Orbiter Science Activity Plan: Translating solar and heliospheric physics questions into action

Autor: Jack Jenkins, A. Vecchio, Georgios Nicolaou, Robert T. Wicks, Sarah A. Matthews, Matthieu Berthomier, T. Chust, Johann Hirzberger, L. Dolla, R. Carr, Spiros Patsourakos, O. Alexandrova, R. De Marco, V. Da Deppo, Angelos Vourlidas, Vincent Génot, Martin M. Roth, Alessandro Bemporad, Eduard P. Kontar, Susan T. Lepri, Lucie M. Green, Pedro Osuna, Jon A. Linker, Sergio Toledo-Redondo, D. Orozco Suárez, Denise Perrone, I. Carrasco-Blazquez, Manolis K. Georgoulis, Achim Gandorfer, Hardi Peter, Daniele Spadaro, Dirk Plettemeier, N. J. Fox, Luciano Rodriguez, Olga Malandraki, Andrei Zhukov, Teresa Nieves-Chinchilla, A. Giunta, Natasha L. S. Jeffrey, L. Etesi, Karine Bocchialini, Davina Innes, Kévin Dalmasse, Jim M. Raines, Jesper Schou, J. C. del Toro Iniesta, Jonathan Eastwood, Lucia Abbo, P. Rochus, T. Dudok de Wit, T. Appourchaux, Stuart D. Bale, C. Watson, Milan Maksimovic, F. Espinosa Lara, Sami K. Solanki, Paulett C. Liewer, Matthieu Kretzschmar, Vincenzo Andretta, L. R. Bellot Rubio, C. Plainaki, C. Terasa, V. Martinez-Pillet, C. Gontikakis, Säm Krucker, S. Parenti, David Long, I. Zouganelis, Silvano Fineschi, Gary Graham, Sophie Musset, Daniel Müller, L. Sanchez, Robert F. Wimmer-Schweingruber, Lakshmi Pradeep Chitta, Xavier Bonnin, Hamish A. S. Reid, Stefano Livi, Thomas Wiegelmann, Andreas Lagg, N. Vilmer, David Berghmans, D. Fontaine, Arnaud Masson, Francesco Valentini, Fernando Carcaboso, Laurence Rezeau, Luca Sorriso-Valvo, I. Cernuda Cangas, David R. Williams, Shane A. Maloney, M. Haberreiter, Miho Janvier, Andrei Fedorov, Luca Teriaca, Timothy S. Horbury, Philippe Louarn, Benoit Lavraud, Christopher J. Owen, Donald M. Hassler, Georgia Tsiropoula, Etienne Pariat, L. van Driel-Gesztelyi, Athanasios Papaioannou, Nicole Meyer-Vernet, Daniel Verscharen, D. N. Baker, Federico Landini, Cis Verbeeck, S. Gissot, Louise K. Harra, L. Rodriguez-Garcia, Andrea Verdini, Baptiste Cecconi, Ioannis Kontogiannis, C. N. Arge, Andrew Walsh, Richard Morton, Marco Romoli, Daniele Telloni, Lorenzo Matteini, Eric Buchlin, Fouad Sahraoui, Roberto Bruno, Christopher H. K. Chen, Radoslav Bučík, Nicolas Labrosse, J. Lefort, K. Moraitis, N. Janitzek, Gethyn R. Lewis, M. Steller, Kostas Tziotziou, Holly Gilbert, Angels Aran, F. Felix-Redondo, Mathew J. Owens, A. S. Brun, Alexander Nindos, Alexander W. James, K. Issautier, Laurent Gizon, N. E. Raouafi, B. Fleck, Javier Rodriguez-Pacheco, Alexis P. Rouillard, Raul Gomez-Herrero, George C. Ho, R. A. Howard, G. J. Hurford, Raffaella D'Amicis, F. Auchère, Helen O'Brien, Andrzej Fludra, J. Büchner, A. Tsounis, Roberto Susino, C. Krafft, Yu. V. Khotyaintsev, Udo Schühle, Štěpán Štverák, Mihailo M. Martinović, Maurizio Pancrazzi, Guillaume Aulanier, S. P. Plunkett, Marco Stangalini, Rui F. Pinto, A. De Groof, David Stansby, Jan Soucek, S. Dolei, Andris Vaivads, Marina Battaglia, Antoine Strugarek, Anastasios Anastasiadis, K.-L. Klein, Peter R. Young, Clementina Sasso, Marco Velli, V. Krasnoselskikh, A. Retino, T. Grundy, I. Leon, O. C. St. Cyr, Ester Antonucci

Publikováno v: Astronomy and Astrophysics-A&A
Astronomy and Astrophysics-A&A, EDP Sciences, In press, ⟨10.1051/0004-6361/202038445⟩
BASE-Bielefeld Academic Search Engine
Astronomy & Astrophysics, 642, 1-19
Astronomy & Astrophysics, 642, pp. 1-19
Astronomy & astrophysics
642 (2020): A3-1–A3-19. doi:10.1051/0004-6361/202038445
info:cnr-pdr/source/autori:Zouganelis, I.; De Groof, A.; Walsh, A. P.; Williams, D. R.; Muller, D.; St Cyr, O. C.; Auchere, F.; Berghmans, D.; Fludra, A.; Horbury, T. S.; Howard, R. A.; Krucker, S.; Maksimovic, M.; Owen, C. J.; Rodriguez-Pacheco, J.; Romoli, M.; Solanki, S. K.; Watson, C.; Sanchez, L.; Lefort, J.; Osuna, P.; Gilbert, H. R.; Nieves-Chinchilla, T.; Abbo, L.; Alexandrova, O.; Anastasiadis, A.; Andretta, V.; Antonucci, E.; Appourchaux, T.; Aran, A.; Arge, C. N.; Aulanier, G.; Baker, D.; Bale, S. D.; Battaglia, M.; Bellot Rubio, L.; Bemporad, A.; Berthomier, M.; Bocchialini, K.; Bonnin, X.; Brun, A. S.; Bruno, R.; Buchlin, E.; Buechner, J.; Bucik, R.; Carcaboso, F.; Carr, R.; Carrasco-Blazquez, I.; Cecconi, B.; Cernuda Cangas, I.; Chen, C. H. K.; Chitta, L. P.; Chust, T.; Dalmasse, K.; D'Amicis, R.; Da Deppo, V.; De Marco, R.; Dolei, S.; Dolla, L.; de Wit, T. Dudok; van Driel-Gesztelyi, L.; Eastwood, J. P.; Espinosa Lara, F.; Etesi, L.; Fedorov, A.; Felix-Redondo, F.; Fineschi, S.; Fleck, B.; Fontaine, D.; Fox, N. J.; Gandorfer, A.; Genot, V.; Georgoulis, M. K.; Gissot, S.; Giunta, A.; Gizon, L.; Gomez-Herrero, R.; Gontikakis, C.; Graham, G.; Green, L.; Grundy, T.; Haberreiter, M.; Harra, L. K.; Hassler, D. M.; Hirzberger, J.; Ho, G. C.; Hurford, G.; Innes, D.; Issautier, K.; James, A. W.; Janitzek, N.; Janvier, M.; Jeffrey, N.; Jenkins, J.; Khotyaintsev, Y.; Klein, K.-L.; Kontar, E. P.; Kontogiannis, I.; Krafft, C.; Krasnoselskikh, V.; Kretzschmar, M.; Labrosse, N.; Lagg, A.; Landini, F.; Lavraud, B.; Leon, I.; Lepri, S. T.; Lewis, G. R.; Liewer, P.; Linker, J.; Livi, S.; Long, D. M.; Louarn, P.; Malandraki, O.; Maloney, S.; Martinez-Pillet, V.; Martinovic, M.; Masson, A.; Matthews, S.; Matteini, L.; Meyer-Vernet, N.; Moraitis, K.; Morton, R. J.; Musset, S.; Nicolaou, G.; Nindos, A.; O'Brien, H.; Orozco Suarez, D.; Owens, M.; Pancrazzi, M.; Papaioannou, A.; Parenti, S.; Pariat, E.; Patsourakos, S.; Perrone, D.; Peter, H.; Pinto, R. F.; Plainaki, C.; Plettemeier, D.; Plunkett, S. P.; Raines, J. M.; Raouafi, N.; Reid, H.; Retino, A.; Rezeau, L.; Rochus, P.; Rodriguez, L.; Rodriguez-Garcia, L.; Roth, M.; Rouillard, A. P.; Sahraoui, F.; Sasso, C.; Schou, J.; Schuehle, U.; Sorriso-Valvo, L.; Soucek, J.; Spadaro, D.; Stangalini, M.; Stansby, D.; Steller, M.; Strugarek, A.; Stverak, S.; Susino, R.; Telloni, D.; Terasa, C.; Teriaca, L.; Toledo-Redondo, S.; del Toro Iniesta, J. C.; Tsiropoula, G.; Tsounis, A.; Tziotziou, K.; Valentini, F.; Vaivads, A.; Vecchio, A.; Velli, M.; Verbeeck, C.; Verdini, A.; Verscharen, D.; Vilmer, N.; Vourlidas, A.; Wicks, R.; Wimmer-Schweingruber, R. F.; Wiegelmann, T.; Young, P. R.; Zhukov, A. N./titolo:The Solar Orbiter Science Activity Plan: Translating solar and heliospheric physics questions into action/doi:10.1051%2F0004-6361%2F202038445/rivista:Astronomy & astrophysics (Print)/anno:2020/pagina_da:A3-1/pagina_a:A3-19/intervallo_pagine:A3-1–A3-19/volume:642
Digital.CSIC. Repositorio Institucional del CSIC
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All authors: Zouganelis, I.; De Groof, A.; Walsh, A. P.; Williams, D. R.; Müller, D.; St Cyr, O. C.; Auchère, F.; Berghmans, D.; Fludra, A.; Horbury, T. S.; Howard, R. A.; Krucker, S.; Maksimovic, M.; Owen, C. J.; Rodríguez-Pacheco, J.; Romoli, M.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cc3f856b2379837e809a4c26a0b9093e
https://lirias.kuleuven.be/handle/123456789/681739

Connecting the Wilson depression to the magnetic field of sunspots

Autor: Andreas Lagg, Björn Löptien, Sami K. Solanki, M. van Noort

Publikováno v: Astronomy & Astrophysics

Context: In sunspots, the geometric height of continuum optical depth unity is depressed compared to the quiet Sun. This so-called Wilson depression is caused by the Lorentz force of the strong magnetic field inside the spots. However, it is not unde

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1b68fb4ba52c71aee4de539f31efcefb