Results 81 to 90 of about 120,963 (192)

Solar and Solar-Like Oscillations: Theory [PDF]

Highlights of Astronomy, 1986
AbstractSolar five-minute oscillations provide a means of testing theoretical models of the sun. By judiciously combining data from low-degree modes, properties of the central and surface regions of the sun can be inferred separately. In principle, it should be possible to draw similar inferences from other stars, once adequate data are available ...
openaire   +1 more source

Dominance of 2 Minute Oscillations near the Alfvén Surface

The Astrophysical Journal Letters
Alfvén waves, considered one of the primary candidates for heating and accelerating the fast solar wind, are ubiquitous in spacecraft observations, yet their origin remains elusive.
Zesen Huang, Marco Velli, Chen Shi, Yingjie Zhu, B. D. G. Chandran, Trevor Bowen, Victor Réville, Jia Huang, Chuanpeng Hou, Nikos Sioulas, Mingzhe Liu, Marc Pulupa, Sheng Huang, Stuart D. Bale   +13 more
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The amplitude of solar oscillations using stellar techniques

, 2008
The amplitudes of solar-like oscillations depend on the excitation and damping, both of which are controlled by convection. Comparing observations with theory should therefore improve our understanding of the underlying physics.
Arentoft, Torben, Bedding, Timothy R., Butler, R. Paul, Chaplin, William J., Dall, Thomas H., Karoff, Christoffer, Kiss, Laszlo L., Kjeldsen, Hans, Tinney, C. G.   +8 more
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"Just So" Neutrino Oscillations Are Back

, 1998
Recent evidence for oscillations of atmospheric neutrinos at Super-Kamiokande suggest, in the simplest see-saw interpretation, neutrino masses such that `just so' vacuum oscillations can explain the solar neutrino deficit.
Barger, Bilenky, Glashow, Krastev, Krauss, Lawrence M. Krauss, Peter J. Kernan, Sheldon L. Glashow   +7 more
core   +1 more source

Electron plasma oscillations associated with type 3 radio emissions and solar electrons [PDF]

An extensive study of the IMP-6 and IMP-8 plasma and radio wave data was performed to try to find electron plasma oscillations associated with type III radio noise bursts and low-energy solar electrons.
Frank, L. A., Gurnett, D. A.
core   +1 more source

Helioseismic Properties of Dynamo Waves in the Variation of Solar Differential Rotation

The Astrophysical Journal
Solar differential rotation exhibits a prominent feature: its cyclic variations over the solar cycle, referred to as zonal flows or torsional oscillations, are observed throughout the convection zone.
Krishnendu Mandal, Alexander G. Kosovichev, Valery V. Pipin   +2 more
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Solar-like Oscillations in Semiregular Variables [PDF]

Astrophysics and Space Science, 2003
Power spectra of the light curves of semiregular variables, based on visual magnitude estimates spanning many decades, show clear evidence for stochastic excitation. This supports the suggestion by Christensen-Dalsgaard et al. (2001) that oscillations in these stars are solar-like, i.e., stochastically excited by convection, with mode lifetimes ranging
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Phenomenology of Neutrino Oscillations

, 2000
The phenomenology of solar, atmospheric, supernova and laboratory neutrino oscillations is described. Analytical formulae for matter effects are reviewed. The results from oscillations are confronted with neutrinoless double beta decay.Comment: 11 pages,
B Zeitnitz, C Athanassopoulos, E Gawiser, G Dutta, G L Fogli, G L Fogli, G L Fogli, G Rajasekaran, J Learned, J M Gelb, J N Abdurashitov, J R Primack, J R Primack, L Baudis, M Apollonio, M Narayan, M Narayan, M Narayan, M Narayan, M Narayan, N Okada, P Anselman, R Adhikari, R Davis, R Davis, R S Raghavan, R S Raghavan, R S Raghavan, S Goswami, S Goswami, S M Bilenky, S Parke, S Perlmutter, T K Kuo, T K Kuo, V Barger, Y Fukuda, Y Fukuda   +37 more
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Diagnosis of the solar atmosphere using solar oscillations [PDF]

Symposium - International Astronomical Union, 1988
I present a review of the art of using acoustic and gravity waves as a tool to probe the structure of the solar atmosphere. The principle ideas behind the technique are discussed and a small bouquet of results is presented. The current discrepancies are pointed out, and in the last section a few thoughts are let loose about the inversion of data to ...
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Extreme-ultraviolet Wave and Quasiperiodic Pulsations during an Eruptive M-class Flare

The Astrophysical Journal
In this paper, we report multiwavelength and multipoint observations of the prominence eruption originating from active region 11163, which generated an M3.5 class flare and a coronal mass ejection (CME) on 2011 February 24.
Shuyue Li, Qingmin Zhang, Haisheng Ji, Shengli Liu, Fanpeng Shi, Dong Li   +5 more
doaj   +1 more source