Start year
2007
Organizational Unit
Organizing institutions
General
Members
Principal investigator
Tanausú del
Pino Alemán
Project staff
Andrés
Asensio Ramos
Javier
Trujillo Bueno
Héctor David
Socas Navarro
Nikola
Vitas
Andrii
Sukhorukov
Ángel Manuel de
Vicente Garrido
Fernando
Moreno Insertis
Supriya
Hebbur Dayananda
Sara
Esteban Pozuelo
Edgar Samuel
Carlín Ramírez
Collaborators
Carlos
Allende Prieto
Íñigo
Arregui Uribe-Echevarría
Cristina
Ramos Almeida
Dr.
M. Bianda
Dr.
R. Ramelli
Dr.
L. Belluzzi
Dr.
R. Casini
Dr.
R. Centeno
Dr.
J. de la Cruz
Dr.
N. Shchukina
Dr.
H. Uitenbroek
Dr.
D. Mckenzie
Dr.
R. Ishikawa
Basilio
Ruiz Cobo
María Jesús
Martínez González
Results
- We applied deep learning techniques to the analysis of observations. Using convolutional neural networks, we developed techniques for the deconvolution of observational data. These techniques were also used to accelerate the deconvolution process of ground-based observations, achieving a cadence of around a hundred images processed per second.
- We developed an inference technique based on bayesian statistics in order to interpret the observations provided by the CLASP international experiment. By parametrizing a state-of-the-art magneto-hydrodynamical model of the solar atmosphere, we found that the geometrical complexity of the transition region must be much more complex than the one provided by the model.
- We solved the problem of polarized radiation transfer in magneto-convection simulations that account for small-scale dynamo action for the Sr I line at 460.7 nm. We found that the model with most of the convection zone magnetized close to the equipartition and a surface mean field strength of 170G is compatible with the available observations.
- We studied the magnetic sensitivity of the Ca I line at 422.7nm. The linear polarization at the core is sensitive to the Hanle effect, while the linear polarization in the wings is sensitive to the magneto-optical effects, as a consequence of the newly found effect resulting from the joint action of partial redistribution and the Zeeman effects.
- We studied the formation of the H-alpha, Mg II h-k, and Ca II H-K and 845.2nm in a model atmosphere of a flaring bipolar active region, solving the radiation transfer problem taking into account partial redistribution in full 3D geometry and out of local thermodynamical equilibrium. We succeeded in reproducing common observational features of such flaring regions.
Scientific activity
Related publications
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CMAG: A Mission to Study and Monitor the Inner Corona Magnetic FieldOrozco Suárez, David et al.
Advertised on:
112023 -
Tomographic Reconstruction of the Solar K-Corona Using Neural FieldsAsensio Ramos, Andrés
Advertised on:
112023 -
The Impact of Angle-dependent Partial Frequency Redistribution on the Scattering Polarization of the Solar Na I D LinesJanett, Gioele et al.
Advertised on:
112023 -
Polarized resonance line transfer in a spherically symmetric medium with angle-dependent partial frequency redistributionSampoorna, M. et al.
Advertised on:
122023 -
First Metis Detection of the Helium D<SUB>3</SUB> Line Polarization in a Large Eruptive ProminenceHeinzel, Petr et al.
Advertised on:
112023 -
On the Magnetic Nature of Quiet-Sun Chromospheric GrainsMartínez González, María Jesús et al.
Advertised on:
102023 -
Magnetic Field Information in the Near-ultraviolet Fe II Lines of the CLASP2 Space ExperimentAfonso Delgado, David et al.
Advertised on:
92023 -
Magnetic field fluctuations in the shocked umbral chromosphereFelipe, T. et al.
Advertised on:
82023 -
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Accelerating Multiframe Blind Deconvolution via Deep LearningAsensio Ramos, Andrés et al.
Advertised on:
72023 -
iNNterpol: High-precision interpolation of stellar atmospheres with a deep neural network using a 1D convolutional auto encoder for feature extractionWestendorp Plaza, C. et al.
Advertised on:
72023 -
Opacity for realistic 3D MHD simulations of cool stellar atmospheresPerdomo García, A. et al.
Advertised on:
72023 -
The He I 10 830 Å line: Radiative transfer and differential illumination effectsVicente Arévalo, Andrés et al.
Advertised on:
72023 -
A study of the capabilities for inferring atmospheric information from high-spatial-resolution simulationsQuintero Noda, C. et al.
Advertised on:
72023 -
The Magnetic Sensitivity of the (250-278 nm) Fe II Polarization SpectrumAfonso Delgado, David et al.
Advertised on:
52023 -
The Potential of the Wavelength-integrated Scattering Polarization of the Hydrogen Lyα Line for Probing the Solar ChromosphereAlsina Ballester, E. et al.
Advertised on:
42023 -
Estimating the longitudinal magnetic field in the chromosphere of quiet-Sun magnetic concentrationsEsteban Pozuelo, S. et al.
Advertised on:
42023 -
Tomography of a Solar Plage with the Tenerife Inversion CodeTrujillo Bueno, Javier et al.
Advertised on:
32023 -
Evidence for the Operation of the Hanle and Magneto-optical Effects in the Scattering Polarization Signals Observed by CLASP2 across the Mg II h and k LinesIshikawa, Ryohko et al.
Advertised on:
32023 -
Impact of opacity effects on chromospheric oscillations inferred from NLTE inversionsFelipe, T. et al.
Advertised on:
22023
![Izquierda - Imagen RGB de la nebulosa de Orión y M43 obtenida filtros estrechos con la cámara WFC en el INT: H alfa (rojo), [S II] 6716+30 (verde), [O III] 5007 (azul). Derecha - Imagen en falso color de la nebulosa planetaria NGC 6778. En azul se ve la emisión en la línea de O II tomada con el filtro sintonizable azul del instrumento OSIRIS en el GTC; en verde imagen con el filtro estrecho de [O III] del Nordic Optical Telescope (NOT).](/sites/default/files/styles/crop_square_2_2_to_320px/public/images/project/imagen_web.jpg?itok=fsBmV9CO "Izquierda - Imagen RGB de la nebulosa de Orión y M43 obtenida filtros estrechos con la cámara WFC en el INT: H alfa (rojo), [S II] 6716+30 (verde), [O III] 5007 (azul). Derecha - Imagen en falso color de la nebulosa planetaria NGC 6778. En azul se ve la emisión en la línea de O II tomada con el filtro sintonizable azul del instrumento OSIRIS en el GTC; en verde imagen con el filtro estrecho de [O III] del Nordic Optical Telescope (NOT).")
