Results 11 to 20 of about 14,186 (205)
Low-amplitude Solar-like Oscillations in the K5 V Star ϵ Indi A [PDF]
The Astrophysical JournalWe have detected solar-like oscillations in the mid-K-dwarf ϵ Indi A, making it the coolest dwarf to have measured oscillations. The star is noteworthy for harboring a pair of brown dwarf companions and a Jupiter-type planet.
Mia S. Lundkvist +19 more
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Proceedings of the International Astronomical Union, 2008 AbstractStudy of solar oscillations has provided us detailed information about solar structure and dynamics. These in turn provide a test of theories of stellar structure and evolution as well as theories of angular momentum transfer and dynamo. Some of these results about the solar structure and its implication on the recent revision of heavy element ...
Antia, H. M.
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Solar models and solar neutrino oscillations
New Journal of Physics, 2004 We provide a summary of the current knowledge, theoretical and experimental, of solar neutrino fluxes and of the masses and mixing angles that characterize solar neutrino oscillations. We also summarize the principal reasons for doing new solar neutrino experiments and what we think may be learned from the future measurements.
Bahcall, John N., Peña Garay, Carlos
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Solar neutrino oscillations [PDF]
Nuclear Physics A, 1994 The special properties of solar neutrinos that render this flux so uniquely important in searches for neutrino masses and flavor mixing are reviewed. The effects of matter, including density fluctuations and turbulence, on solar neutrino oscillations are explained through analogies with more familiar atomic physics phenomena.
Haxton, W. C.
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Low-frequency oscillations while magnetic storms as a tool to determine the types of solar plasma flows [PDF]
E3S Web of Conferences, 2020 Comparison of wavelet spectrum (skeletons) local maxima for disturbed components of solar plasma flow parameters and geomagnetic field disturbances recorded along the meridional station chain during geomagnetic storm intervals is performed in the range ...
Barkhatov N. A. +4 more
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AIP Conference Proceedings, 2009 In recent years solar oscillations have been studied in great detail, both observationally and theoretically; so, perhaps, the Sun currently is the best understood pulsating star. The observational studies include long, almost uninterrupted series of oscillation data from the SOHO spacecraft and ground-based networks, GONG and BiSON, and more recently,
A. G. Kosovichev +2 more
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Transverse Vertical Oscillations During the Contraction and Expansion of Coronal Loops
The Astrophysical Journal, 2023 In this paper, we carry out a detailed analysis of the M1.6 class eruptive flare occurring in NOAA active region 13078 on 2022 August 19. The flare is associated with a fast coronal mass ejection (CME) propagating in the southwest direction with an ...
Qingmin Zhang +7 more
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Large scale coherent magnetohydrodynamic oscillations in a sunspot
Nature Communications, 2022 Co-existence of several magnetohydrodynamic oscillations modes on the Sun were predicted earlier. Here, the authors show large-scale coherent oscillations in a sunspot, with a spectrum different than solar global acoustic oscillations, incorporating a ...
M. Stangalini +13 more
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Solar Activity and Solar Oscillations [PDF]
Symposium - International Astronomical Union, 1997 Helioseismology provides us with the tools to probe solar activity. So that we can consider how the solar oscillations are influenced by that activity, we first consider the phenomena that we associate with the active Sun. The surface of the Sun is not quiet but shows evidence of convection on a wide range of scales from a few hundred kilometres ...
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Observations of solar-like oscillations [PDF]
Communications in Asteroseismology, 2005 AbstractThe solar-like oscillations are oscillations that are expected to be excited by near-surface convection. Apart from the Sun itself, we now have a number of stars where p-mode solar-like oscillations have been detected. In this paper we present a short presentation of those recently discovered oscillations.
Bedding, T., Kjeldsen, Hans
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