Search Results - "Voort, Luc Rouppe van"

ON FIBRILS AND FIELD LINES: THE NATURE OF H α FIBRILS IN THE SOLAR CHROMOSPHERE by Leenaarts, Jorrit, Carlsson, Mats, van der Voort, Luc Rouppe

“…Observations of the solar chromosphere in the line core of the H alpha line show dark elongated structures called fibrils that show swaying motion. We…”
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Solar Image Restoration By Use Of Multi-frame Blind De-convolution With Multiple Objects And Phase Diversity by Noort, Michiel, Voort, Luc Rouppe Van, Loefdahl, Mats G

“…Issue Title: Solar Image Processing An extension of Joint Phase Diverse Speckle image restoration is presented. Multiple realizations of multiple objects…”
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ELLERMAN BOMBS AT HIGH RESOLUTION. II. TRIGGERING, VISIBILITY, AND EFFECT ON UPPER ATMOSPHERE by VISSERS, GREGAL J M, VAN DER VOORT, LUC H M ROUPPE, Rutten, Robert J

“…We use high-resolution imaging spectroscopy with the Swedish 1-m Solar Telescope (SST) to study the transient brightenings of the wings of the Balmer H alpha…”
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EMERGENCE OF GRANULAR-SIZED MAGNETIC BUBBLES THROUGH THE SOLAR ATMOSPHERE. III. THE PATH TO THE TRANSITION REGION by Ortiz, Ada, Hansteen, Viggo H., Rubio, Luis Ramón Bellot, Rodríguez, Jaime de la Cruz, Pontieu, Bart De, Carlsson, Mats, Voort, Luc Rouppe van der

“…ABSTRACT We study, for the first time, the ascent of granular-sized magnetic bubbles from the solar photosphere through the chromosphere into the transition…”
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FLOCCULENT FLOWS IN THE CHROMOSPHERIC CANOPY OF A SUNSPOT by VISSERS, Gregal, VAN DER VOORT, Luc Rouppe

“…High-quality imaging spectroscopy in the H alpha line, obtained with the CRisp Imaging SpectroPolarimeter (CRISP) at the Swedish 1-m solar Telescope (SST) at…”
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Solar Ultraviolet Bursts by Young, Peter R., Tian, Hui, Peter, Hardi, Rutten, Robert J., Nelson, Chris J., Huang, Zhenghua, Schmieder, Brigitte, Vissers, Gregal J. M., Toriumi, Shin, van der Voort, Luc H. M. Rouppe, Madjarska, Maria S., Danilovic, Sanja, Berlicki, Arkadiusz, Chitta, L. P., Cheung, Mark C. M., Madsen, Chad, Reardon, Kevin P., Katsukawa, Yukio, Heinzel, Petr

“…The term “ultraviolet (UV) burst” is introduced to describe small, intense, transient brightenings in ultraviolet images of solar active regions. We…”
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THE APPEARANCE OF SPICULES IN HIGH RESOLUTION OBSERVATIONS OF Ca ii H AND Hα by Pereira, Tiago M. D., Voort, Luc Rouppe van der, Carlsson, Mats

“…Solar spicules are chromospheric fibrils that appear everywhere on the Sun, yet their origin is not understood. Using high resolution observations of spicules…”
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Thin Threads of Solar Filaments by Lin, Yong, Engvold, OddbjOern, Voort, Luc Rouppe van, Wiik, Jun Elin, Berger, Thomas E

“…High-resolution images obtained in Hα with the new Swedish Solar Telescope at La Palma, Spain, have been used for studies of fine-scale threads in solar…”
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High-resolution Observations of the Low Atmospheric Response to Small Coronal Heating Events in an Active Region Core by Testa, Paola, Bakke, Helle, Rouppe van der Voort, Luc, De Pontieu, Bart

“…High-resolution spectral observations of the lower solar atmosphere (chromosphere and transition region) during coronal heating events, in combination with…”
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The Chromosphere Underneath a Coronal Bright Point by Bose, Souvik, Nóbrega-Siverio, Daniel, De Pontieu, Bart, van der Voort, Luc Rouppe

“…Coronal bright points (CBPs) are sets of small-scale coronal loops, connecting opposite magnetic polarities, primarily characterized by their enhanced…”
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Quantifying Properties of Photospheric Magnetic Cancellations in the Quiet Sun Internetwork by Ledvina, Vincent E., Kazachenko, Maria D., Criscuoli, Serena, Tilipman, Dennis, Ermolli, Ilaria, Falco, Mariachiara, Guglielmino, Salvatore, Jafarzadeh, Shahin, van der Voort, Luc Rouppe, Zuccarello, Francesca

“…We analyzed spectropolarimetric data from the Swedish 1 m Solar Telescope to investigate the physical properties of small-scale magnetic cancellations in the…”
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ARE GIANT TORNADOES THE LEGS OF SOLAR PROMINENCES? by Wedemeyer, Sven, Scullion, Eamon, VAN DER VOORT, LUC ROUPPE, Bosnjak, Antonija, Antolin, Patrick

“…Observations in the 171 [Angstrom] channel of the Atmospheric Imaging Assembly of the space-borne Solar Dynamics Observatory show tornado-like features in the…”
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On-Disk Coronal Rain by Antolin, Patrick, Vissers, Gregal, Rouppe van der Voort, Luc

“…Small and elongated, cool and dense blob-like structures are being reported with high resolution telescopes in physically different regions throughout the…”
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Beam electrons as a source of Hα flare ribbons by Druett, Malcolm, Scullion, Eamon, Zharkova, Valentina, Matthews, Sarah, Zharkov, Sergei, Rouppe Van der Voort, Luc

“…The observations of solar flare onsets show rapid increase of hard and soft X-rays, ultra-violet emission with large Doppler blue shifts associated with plasma…”
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EMERGENCE OF GRANULAR-SIZED MAGNETIC BUBBLES THROUGH THE SOLAR ATMOSPHERE. I. SPECTROPOLARIMETRIC OBSERVATIONS AND SIMULATIONS by Ortiz, Ada, RUBIO, LUIS R BELLOT, Hansteen, Viggo H, RODRIGUEZ, JAIME DE LA CRUZ, VAN DER VOORT, LUC ROUPPE

“…We study a granular-sized magnetic flux emergence event that occurred in NOAA 11024 in 2009 July. The observations were made with the CRISP spectropolarimeter…”
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INTERNETWORK CHROMOSPHERIC BRIGHT GRAINS OBSERVED WITH IRIS AND SST by Martínez-Sykora, Juan, Voort, Luc Rouppe van der, Carlsson, Mats, Pontieu, Bart De, Pereira, Tiago M. D., Boerner, Paul, Hurlburt, Neal, Kleint, Lucia, Lemen, James, Tarbell, Ted D., Title, Alan, Wuelser, Jean-Pierre, Hansteen, Viggo H., Golub, Leon, McKillop, Sean, Reeves, Kathy K., Saar, Steven, Testa, Paola, Tian, Hui, Jaeggli, Sarah, Kankelborg, Charles

“…ABSTRACT The Interface Region Imaging Spectrograph (IRIS) reveals small-scale rapid brightenings in the form of bright grains all over coronal holes and the…”
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Magnetic tornadoes as energy channels into the solar corona by Wedemeyer-Böhm, Sven, Scullion, Eamon, Steiner, Oskar, van der Voort, Luc Rouppe, de la Cruz Rodriguez, Jaime, Fedun, Viktor, Erdélyi, Robert

“…Rotating magnetic structures in the Sun can channel energy outwards from the convection zone and may explain how the energy required to heat the outer layers…”
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Dark cores in sunspot penumbral filaments by Kiselman, Dan, Scharmer, Göran B, Gudiksen, Boris V, Löfdahl, Mats G, van der Voort, Luc H. M. Rouppe

“…Sunspot umbrae-the dark central regions of the spots-are surrounded by brighter filamentary penumbrae, the existence of which remains largely inexplicable. The…”
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ELLERMAN BOMBS AT HIGH RESOLUTION. I. MORPHOLOGICAL EVIDENCE FOR PHOTOSPHERIC RECONNECTION by Watanabe, Hiroko, Vissers, Gregal, Kitai, Reizaburo, Rouppe van der Voort, Luc, Rutten, Robert J.

“…High-resolution imaging-spectroscopy movies of solar active region NOAA 10998 obtained with the Crisp Imaging Spectropolarimeter at the Swedish 1-m Solar…”
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THE APPEARANCE OF SPICULES IN HIGH RESOLUTION OBSERVATIONS OF Ca ii H AND H by Pereira, Tiago M. D., Voort, Luc Rouppe van der, Carlsson, Mats

“…ABSTRACT Solar spicules are chromospheric fibrils that appear everywhere on the Sun, yet their origin is not understood. Using high resolution observations of…”
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