Zobrazeno 1 - 10
of 100
pro vyhledávání: '"Sainz Dalda, A."'
Autor:
Alberto Sainz Dalda, Bart De Pontieu
Publikováno v:
Frontiers in Astronomy and Space Sciences, Vol 10 (2023)
The flare activity of the Sun has been studied for decades, using both space- and ground-based telescopes. The former have mainly focused on the corona, while the latter have mostly been used to investigate the conditions in the chromosphere and phot
Externí odkaz:
https://doaj.org/article/040038e65ce549e1911c6bdefb1848c9
Publikováno v:
The Astrophysical Journal, Vol 964, Iss 2, p 175 (2024)
Small-scale, newly emerging internetwork (IN) magnetic fields are considered a viable source of energy and mass for the solar chromosphere and possibly the corona. Multiple studies show that single events of flux emergence can indeed locally heat the
Externí odkaz:
https://doaj.org/article/5a22a8adb1b04fa58ad5fc69745afcd5
Publikováno v:
The Astrophysical Journal Supplement Series, Vol 271, Iss 1, p 24 (2024)
We present the most comprehensive collection of stratified-in-optical-depth thermodynamic models of the lower solar atmosphere. This database, named IRIS ^2+ , consists of 40,320 synthetic representative profiles (RPs) and their corresponding represe
Externí odkaz:
https://doaj.org/article/7873101591d24929857ad8d461d7ac63
Autor:
Juan Martínez-Sykora, Jaime de la Cruz Rodríguez, Milan Gošić, Alberto Sainz Dalda, Viggo H. Hansteen, Bart De Pontieu
Publikováno v:
The Astrophysical Journal Letters, Vol 943, Iss 2, p L14 (2023)
The heating of the chromosphere in internetwork regions remains one of the foremost open questions in solar physics. In the present study, we tackle this old problem by using a very-high-spatial-resolution simulation of quiet-Sun conditions performed
Externí odkaz:
https://doaj.org/article/d6df9ccf440643ec9e9e5f18bd48179f
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Akademický článek
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We analyze spectropolarimetric data of the He I 1083~nm multiplet ($1s2s~^3\!S_1 - 1s2p~^3\!P^o_{2,1,0}$) during the X1 flare SOL2014-03-29T17:48, obtained with the Facility Infrared Spectrometer (FIRS) at the Dunn Solar Telescope. While scanning act
Externí odkaz:
http://arxiv.org/abs/1510.09218
Publikováno v:
The Astrophysical Journal, Vol 952, Iss 2, p 138 (2023)
Judge et al. recently argued that a region of the solar spectrum in the near-UV between about 250 and 290 nm is optimal for studying magnetism in the solar chromosphere, due to an abundance of Mg ii , Fe ii , and Fe i lines that sample various height
Externí odkaz:
https://doaj.org/article/6f193c3aa55c4b70966fe8dca2f6a318
Autor:
Alberto Sainz Dalda, Bart De Pontieu
Publikováno v:
The Astrophysical Journal, Vol 944, Iss 2, p 118 (2023)
Observations by the Interface Region Imaging Spectrograph (IRIS) of the Mg ii h & k spectral lines have provided a new diagnostic window toward knowledge of the complex physical conditions in the solar chromosphere. Theoretical efforts focused on und
Externí odkaz:
https://doaj.org/article/2ce9c614ef974355b2f3ddf3da5f46a1
Publikováno v:
Sainz Dalda, Alberto Agrawal, Aaryan De Pontieu, Bart Walter Gošić, Milan . IRIS2+: A Comprehensive Database of Stratified Thermodynamic Models in the Low Solar Atmosphere. Astrophysical Jo
Astrophysical Jo
Astrophysical Jo
Externí odkaz:
http://hdl.handle.net/10852/110685