Zobrazeno 1 - 10
of 485
pro vyhledávání: '"Cobo, B."'
Investigating light bridges (LBs) helps us comprehend key aspects of sunspots. However, few studies have analyzed the properties of LBs in terms of the geometric height, which is a more realistic perspective given the corrugation of the solar atmosph
Externí odkaz:
http://arxiv.org/abs/2408.07645
Autor:
Noda, C. Quintero, Khomenko, E., Collados, M., Cobo, B. Ruiz, Gafeira, R., Vitas, N., Rempel, M., Campbell, R. J., Yabar, A. Pastor, Uitenbroek, H., Suárez, D. Orozco
In this work, we study the accuracy that can be achieved when inferring the atmospheric information from realistic numerical magneto-hydrodynamic simulations that reproduce the spatial resolution we will obtain with future observations made by the 4m
Externí odkaz:
http://arxiv.org/abs/2306.01422
Autor:
Cobo, B. Ruiz, Noda, C. Quintero, Gafeira, R., Uitenbroek, H., Suárez, D. Orozco, Mañá, E. Páez
Publikováno v:
A&A 660, A37 (2022)
Future ground-based telescopes, such as the 4-metre class facilities DKIST and EST, will dramatically improve on current capabilities for simultaneous multi-line polarimetric observations in a wide range of wavelength bands, from the near-ultraviolet
Externí odkaz:
http://arxiv.org/abs/2202.02226
Publikováno v:
A&A 656, L20 (2021)
We aim at demonstrating the capabilities of a newly developed method for determining electric currents in the solar photosphere. We employ three-dimensional radiative magneto-hydrodynamic (MHD) simulations to produce synthetic Stokes profiles in seve
Externí odkaz:
http://arxiv.org/abs/2112.04356
Autor:
Kuckein, C., Balthasar, H., Noda, C. Quintero, Diercke, A., Arjona, J. C. Trelles, Cobo, B. Ruiz, Felipe, T., Denker, C., Verma, M., Kontogiannis, I., Sobotka, M.
Publikováno v:
A&A 653, A165 (2021)
The spectral window, containing Fraunhofer lines formed in the solar photosphere, around the magnetically sensitive Cr I lines at 5780.9, 5781.1, 5781.7, 5783.0, and 5783.8 \r{A}, with Land\'e g-factors between 1.6 and 2.5, is explored. The goal is t
Externí odkaz:
http://arxiv.org/abs/2107.11116
The Sun is the only star where we can resolve the intricate magnetism that all convective stars harbor. Yet, more than 99% of its visible surface along the solar cycle (the so-called quiet Sun) is filled with a tangled, unresolved magnetism. These "h
Externí odkaz:
http://arxiv.org/abs/2106.10546
Autor:
Noda, C. Quintero, Barklem, P. S., Gafeira, R., Cobo, B. Ruiz, Collados, M., Carlsson, M., Pillet, V. Martínez, Suárez, D. Orozco, Uitenbroek, H., Katsukawa, Y.
Publikováno v:
A&A 652, A161 (2021)
Future ground-based telescopes will expand our capabilities for simultaneous multi-line polarimetric observations in a wide range of wavelengths, from the near-ultraviolet to the near-infrared. This creates a strong demand to compare candidate spectr
Externí odkaz:
http://arxiv.org/abs/2106.05084
In this work, we discuss the application of convolutional neural networks (CNNs) as a tool to advantageously initialize Stokes profile inversions. To demonstrate the usefulness of CNNs, we concentrate in this paper on the inversion of LTE Stokes prof
Externí odkaz:
http://arxiv.org/abs/2103.09651
Publikováno v:
A&A 648, A68 (2021)
Both the quality and amount of astrophysical data are steadily increasing over time owing to the improvement of telescopes and their instruments. This requires corresponding evolution of the techniques used for obtaining and analyzing the resulting d
Externí odkaz:
http://arxiv.org/abs/2103.04160
Publikováno v:
A&A 647, A190 (2021)
Inversion techniques applied to the radiative transfer equation for polarized light are capable of inferring the physical parameters in the solar atmosphere (temperature $T$, magnetic field ${\bf B}$, and line-of-sight velocity $v_{\rm los}$) from ob
Externí odkaz:
http://arxiv.org/abs/2101.04394