Zobrazeno 1 - 10
of 45
pro vyhledávání: '"Korda, David"'
Publikováno v:
A&A 675, A50 (2023)
Context. Upcoming space missions will provide us with surface-resolved NEA reflectance spectra. Neural networks are useful tools for analysing reflectance spectra and determining material composition with high precision and low processing time. Aims.
Externí odkaz:
http://arxiv.org/abs/2305.05700
Publikováno v:
A&A 669, A101 (2023)
Chemical and mineral compositions of asteroids reflect the formation and history of our Solar System. This knowledge is also important for planetary defence and in-space resource utilisation. We aim to develop a fast and robust neural-network-based m
Externí odkaz:
http://arxiv.org/abs/2210.01006
Autor:
Korda, David
Local helioseismology consists of methods which study the propagation of the waves through the solar interior. The properties of the waves encode conditions in the plasma along their propagation trajectories. Local helioseismology allows us to learn
Externí odkaz:
http://www.nusl.cz/ntk/nusl-438515
Publikováno v:
A&A 654, A84 (2021)
The study of solar oscillations (helioseismology) has been a very successful method of researching the Sun. Helioseismology teaches us about the structure and mean properties of the Sun. Together with mid-resolution data, the local properties were un
Externí odkaz:
http://arxiv.org/abs/2108.00872
Autor:
Korda, David, Švanda, Michal
Publikováno v:
A&A 646, A184 (2021)
Supergranules create a peak in the spatial spectrum of photospheric velocity features. They have some properties of convection cells but their origin is still being debated in the literature. The time-distance helioseismology constitutes a method tha
Externí odkaz:
http://arxiv.org/abs/2101.05731
Publikováno v:
A&A 636, A102 (2020)
We studied the dynamics of the solar atmosphere in the region of a large quiet-Sun filament, which erupted on 21 October 2010. The filament eruption started at its northern end and disappeared from the H$\alpha$ line-core filtergrams line within a fe
Externí odkaz:
http://arxiv.org/abs/2003.12515
Publikováno v:
In: Kab\'ath P., Jones D., Skarka M. (eds) Reviews in Frontiers of Modern Astrophysics. 2020, p. 349-378. Springer, Cham
Observations of the Sun in the visible spectral range belong to standard measurements obtained by instruments both on the ground and in the space. Nowadays, both nearly continuous full-disc observations with medium resolution and dedicated campaigns
Externí odkaz:
http://arxiv.org/abs/2001.03874
Akademický článek
Tento výsledek nelze pro nepřihlášené uživatele zobrazit.
K zobrazení výsledku je třeba se přihlásit.
K zobrazení výsledku je třeba se přihlásit.
Publikováno v:
A&A 629, A55 (2019)
We compared the results from the JSOC pipeline for horizontal flow components and the perturbations of the speed of sound at set of depths with equivalent results from an independently implemented pipeline using a different time-distance inversion sc
Externí odkaz:
http://arxiv.org/abs/1908.03950
Autor:
Korda, David, Švanda, Michal
Publikováno v:
A&A 622, A163 (2019)
Time-distance helioseismology is the method of the study of the propagation of waves through the solar interior via the travel times of those waves. The travel times of wave packets contain information about the conditions in the interior integrated
Externí odkaz:
http://arxiv.org/abs/1901.01293