Zobrazeno 1 - 10
of 70
pro vyhledávání: '"Göran B. Scharmer"'
Autor:
Jayant Joshi, Daniel Nóbrega-Siverio, Vasco Manuel de Jorge Henriques, Clara Froment, H. Skogsrud, Ada Ortiz, Göran B. Scharmer, Eamon Scullion, C. Quintero Noda, Milan Gošić, Georgios Chintzoglou, Mats Carlsson, R. Timmons, Lucia Kleint, Pia Zacharias, Tiago M. D. Pereira, T. Leifsen, M. M. Woods, Viggo Hansteen, Mikolaj Szydlarski, Petra Kohutova, Juan Martinez-Sykora, Gregal J. M. Vissers, Souvik Bose, Ainar Drews, David Graham, Shahin Jafarzadeh, A. Sainz Dalda, D. Schmit, A. Popovas, L. Rouppe van der Voort, J. de la Cruz Rodríguez, B. De Pontieu
Publikováno v:
Astronomy & Astrophysics
NASA's Interface Region Imaging Spectrograph (IRIS) provides high resolution observations of the solar atmosphere through UV spectroscopy and imaging. Since the launch of IRIS in June 2013, we have conducted systematic observation campaigns in coordi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::dc9acd3f7a018f7c6cd656cfba6b5ad9
Autor:
Gregal J. M. Vissers, Göran B. Scharmer, L. Rouppe van der Voort, Mats Carlsson, Tine Libbrecht, J. de la Cruz Rodríguez
Publikováno v:
Astronomy & Astrophysics
Ellerman bombs and UV bursts are transient brightenings that are ubiquitously observed in the lower atmospheres of active and emerging flux regions. Here we present inversion results of SST/CRISP and CHROMIS, as well as IRIS data of such transient ev
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::68a726eee9b58c30e8487f5ef8822eb7
http://arxiv.org/abs/1905.02035
http://arxiv.org/abs/1905.02035
Publikováno v:
The Astronomical Journal. 161:89
We present the design and performance of a polychromatic polarization modulator for the CRisp Imaging SpectroPolarimeter (CRISP) Fabry-Perot tunable narrow-band imaging spectropolarimer at the Swedish 1-m Solar Telescope (SST). We discuss the design
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f8674c7b16b8ea549658ce5349014eae
https://doi.org/10.3847/1538-3881/abd2b1
https://doi.org/10.3847/1538-3881/abd2b1
Autor:
Göran B. Scharmer, Mats Carlsson, S. Esteban Pozuelo, L. Rouppe van der Voort, J. de la Cruz Rodríguez, Ainar Drews
Publikováno v:
The Astrophysical Journal
We study the polarization signals and physical parameters of penumbral microjets (PMJs) by using high spatial resolution data taken in the Fe I 630 nm pair, Ca II 854.2 nm and Ca II K lines with the CRISP and CHROMIS instruments at the Swedish 1-m So
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b6285b3c629b3d10e2232bc4f7c41758
http://arxiv.org/abs/1811.07881
http://arxiv.org/abs/1811.07881
Autor:
T. Fredvik, T. Hillberg, Göran B. Scharmer, Jaime de la Cruz Rodríguez, Mats G. Löfdahl, Oleksii Andriienko, G. J. M. Vissers, Stein Vidar Hagfors Haugan
Context: Data from ground-based, high-resolution solar telescopes can only be used for science with calibrations and processing, which requires detailed knowledge about the instrumentation. [...] Aims: We aim to provide observers with a user-friendly
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f31473e31d057560c767692169e3712f
Autor:
Sanja Danilovic, Göran B. Scharmer, Jorrit Leenaarts, Mats Carlsson, Jaime de la Cruz Rodríguez
Context. The radiative losses in the solar chromosphere vary from 4~kW~m$^{-2}$ in the quiet Sun, to 20~kW~m$^{-2}$ in active regions. The mechanisms that transport non-thermal energy to and deposit it in the chromosphere are still not understood. Ai
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5eae7b539f32136cdd3c6b6afe88a5be
http://arxiv.org/abs/1712.00474
http://arxiv.org/abs/1712.00474
Autor:
Mats Carlsson, Gregal J. M. Vissers, Lijia Guo, Tiago M. D. Pereira, Juan Martinez-Sykora, B. De Pontieu, Viggo Hansteen, Daniel Nóbrega-Siverio, Shahin Jafarzadeh, L. Rouppe van der Voort, J. de la Cruz Rodríguez, Göran B. Scharmer
Publikováno v:
The Astrophysical Journal
Magnetic reconnection is thought to drive a wide variety of dynamic phenomena in the solar atmosphere. Yet the detailed physical mechanisms driving reconnection are difficult to discern in the remote sensing observations that are used to study the so
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5d93253ae93b3f4d8c7c0a5453c09231
http://hdl.handle.net/10852/60146
http://hdl.handle.net/10852/60146
Publikováno v:
Astronomy & Astrophysics. 626:A55
We demonstrate that for data recorded with a solar telescope that uses adaptive optics and/or post-processing to compensate for many low- and high-order aberrations, the RMS granulation contrast is directly proportional to the Strehl ratio calculated
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7ffa5dc44fc69788a621c90ec3bf9481
https://doi.org/10.1051/0004-6361/201935735
https://doi.org/10.1051/0004-6361/201935735
Autor:
T. Hillberg, J. de la Cruz Rodríguez, Dan Kiselman, Göran B. Scharmer, Gautam Narayan, M. van Noort, P. Sutterlin, Mats G. Löfdahl, Andreas Lagg
Publikováno v:
The Astrophysical Journal. 689:L69-L72
We discuss penumbral fine structure in a small part of a pore, observed with the CRISP imaging spectropolarimeter at the Swedish 1-m Solar Telescope (SST), close to its diffraction limit of 0.16 arcsec. Milne-Eddington inversions applied to these Sto
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::20acb2ee9107850764e5d087ef6eccf2
https://doi.org/10.1086/595744
https://doi.org/10.1086/595744
Publikováno v:
Astronomy & Astrophysics. 464:763-774
Context. The recent discovery of dark-cored penumbral filaments suggests that we are resolving the building blocks of sunspot penumbrae. Their properties are largely unknown but provide important clues to understanding penumbral fine structure. Aims.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f21b8a1b821f29d33df25c6731633e63
https://doi.org/10.1051/0004-6361:20065215
https://doi.org/10.1051/0004-6361:20065215