Zobrazeno 1 - 10
of 49
pro vyhledávání: '"Petrovay Kristóf"'
Publikováno v:
Journal of Space Weather and Space Climate, Vol 10, p 50 (2020)
We discuss the potential use of an algebraic method to compute the value of the solar axial dipole moment at solar minimum, widely considered to be the most reliable precursor of the activity level in the next solar cycle. The method consists of summ
Externí odkaz:
https://doaj.org/article/14969f555b414fbfa03c29509476a0a2
Publikováno v:
Journal of Space Weather and Space Climate, Vol 10, p 46 (2020)
An algebraic method for the reconstruction and potentially prediction of the solar dipole moment value at sunspot minimum (known to be a good predictor of the amplitude of the next solar cycle) was suggested in the first paper in this series. The met
Externí odkaz:
https://doaj.org/article/27797d1ac71244f6b7bdcad69545271a
We review the surface flux transport model for the evolution of magnetic flux patterns on the Sun's surface. Our underlying motivation is to understand the model's prediction of the polar field (or axial dipole) strength at the end of the solar cycle
Externí odkaz:
http://arxiv.org/abs/2303.01209
Physics-based solar cycle predictions provide an effective way to verify our understanding of the solar cycle. Before the start of cycle 25, several physics-based solar cycle predictions were developed. These predictions use flux transport dynamo (FT
Externí odkaz:
http://arxiv.org/abs/2212.01158
Publikováno v:
The Astrophysical Journal, 909:87 (12pp), 2021 March 1
The polar precursor method is widely considered to be the most robust physically motivated method to predict the amplitude of an upcoming solar cycle.It uses indicators of the magnetic field concentrated near the poles around sunspot minimum. Here, w
Externí odkaz:
http://arxiv.org/abs/2101.05013
Autor:
Petrovay, Kristof
Publikováno v:
Journal for the History of Astronomy, 51(2), 152-161 (May 2020)
The first determination of the surface temperature of stars other than the Sun is due to the Hungarian astrophysicist B\'ela Hark\'anyi. Prompted by the recent unprecedented increase in the availability of stellar temperature estimates from Gaia, coi
Externí odkaz:
http://arxiv.org/abs/2003.08092
Autor:
Petrovay, Kristof
A review of solar cycle prediction methods and their performance is given, including early forecasts for cycle 25. The review focuses on those aspects of the solar cycle prediction problem that have a bearing on dynamo theory. The scope of the review
Externí odkaz:
http://arxiv.org/abs/1907.02107
Publikováno v:
In Journal of Atmospheric and Solar-Terrestrial Physics February 2023 243
Akademický článek
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Autor:
Nagy, Melinda, Lemerle, Alexandre, Labonville, François, Petrovay, Kristóf, Charbonneau, Paul
Publikováno v:
Solar Physics, 2017, Volume 292, Issue 11, 22 pp
The origin of cycle-to-cycle variations in solar activity is currently the focus of much interest. It has recently been pointed out that large individual active regions with atypical properties can have a significant impact on the long term behaviour
Externí odkaz:
http://arxiv.org/abs/1712.02185