Zobrazeno 1 - 10
of 52
pro vyhledávání: '"Kyuhyoun Cho"'
Publikováno v:
The Astrophysical Journal, Vol 975, Iss 1, p 33 (2024)
The origin of nonthermal broadening in solar spectra is one of the long-standing questions in solar physics. Various processes have been invoked—including unresolved flows, waves, and turbulent processes—but definitive answers are lacking. To inv
Externí odkaz:
https://doaj.org/article/c293ff8bc753426e907fc2dd2bec0cc5
Publikováno v:
The Astrophysical Journal, Vol 945, Iss 2, p 143 (2023)
Nanoflares are regarded as one of the major mechanisms of magnetic energy release and coronal heating in the solar outer atmosphere. We conduct a statistical study on the response of the chromosphere and transition region to nanoflares, as observed b
Externí odkaz:
https://doaj.org/article/f76bd9e0956649b3a0e95e8b84662aeb
Autor:
Heesu Yang, Kyuhyoun Cho, Su-Chan Bong, Seonghwan Choi, Maria S. Madjarska, Yeon-Han Kim, Nelson Reginald, Jeffrey Newmark
Publikováno v:
Solar Physics. 298
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ffb5da97d4795893fa0cb53455ee45c3
https://doi.org/10.1007/s11207-023-02147-0
https://doi.org/10.1007/s11207-023-02147-0
Nanoflares are regarded as one of the major mechanisms of magnetic energy release and coronal heating in the solar outer atmosphere. We conduct a statistical study on the response of the chromosphere and transition region to nanoflares, as observed b
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::44ebc420bcee70c7f5d7828e14756c4b
Publikováno v:
The Astrophysical Journal. 940:147
A multilayer spectral inversion (MLSI) model has recently been proposed for inferring the physical parameters of plasmas in the solar chromosphere from strong absorption lines taken by the Fast Imaging Solar Spectrograph (FISS). We apply a deep neura
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cb51825b2fe92762e635760a31e204e4
https://doi.org/10.3847/1538-4357/ac9c60
https://doi.org/10.3847/1538-4357/ac9c60
Publikováno v:
The Astrophysical Journal. 933:108
Recent observations provided evidence that the solar chromosphere of sunspot regions is pervaded by Alfvénic waves—transverse magnetohydrodynamic (MHD) waves (Alfvén waves or kink waves). In order to systematically investigate the physical charac
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::548e9248ede96e403bc2b950ea8fb195
https://doi.org/10.3847/1538-4357/ac722e
https://doi.org/10.3847/1538-4357/ac722e
Autor:
Daniel Nóbrega-Siverio, Kyuhyoun Cho, Zhenyong Hou, Klaus Galsgaard, Maria S. Madjarska, Hannah Kwak, Jongchul Chae, Fernando Moreno-Insertis
We investigate the chromospheric counterpart of small-scale coronal loops constituting a coronal bright point (CBP) and its response to a photospheric magnetic-flux increase accompanied by co-temporal CBP heating. We used co-observations from the AIA
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c5d466429728f0f882e9e02a070b52d3
http://arxiv.org/abs/2012.09426
http://arxiv.org/abs/2012.09426
It is not yet fully understood how magnetohydrodynamic waves in the interior and atmosphere of the Sun are excited. Traditionally, turbulent convection in the interior is considered to be the source of wave excitation in the quiet Sun. Over the last
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a014a8a8e3dbacc009afda89b30d3722
Solar rotational tomography (SRT) is an important method to reconstruct the physical parameters of the three-dimensional solar corona. Here we propose an approach to apply the filtered backprojection (FBP) algorithm to the SRT. The FBP algorithm is g
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1d8dcaaff796f9a37d481453f3c7d7e2
The umbral oscillations of velocity are commonly observed in the chromosphere of a sunspot. Their sources are considered to be either the external p-mode driving or the internal excitation by magnetoconvection. Even though the possibility of the p-mo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::17e8fc2d36d295ca0f7c88523c070e02