Výsledky vyhledávání - "Charles L Wolff"

Solar Irradiance Variability, Influenced by r Modes

Autor: Charles L. Wolff

Publikováno v: The Astrophysical Journal. 870:20

A spectrum of the four-decade solar irradiance record has a prominent cluster of power for periodicities near 1 yr. Correlating irradiance with a bandpass filter showed that periodicity values were not constant, but varied sinusoidally with each cycl

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ee4a4356ea198eca2331e193e5d7ee0f
https://doi.org/10.3847/1538-4357/aaee80

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A New Way that Planets Can Affect the Sun

Autor: Charles L. Wolff, Paul N. Patrone

Publikováno v: Solar Physics. 266:227-246

As planets orbit the Sun, the Sun also has to move to keep the total momentum of the solar system constant. The Sun's small orbital motion plus its 25 day rotation about its axis combine to invigorate some solar instabilities. Occasional convection c

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::cb5e76a2a3ceb2e99438d2cc938bbfaf
https://doi.org/10.1007/s11207-010-9628-y

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EFFECTS OF A DEEP MIXED SHELL ON SOLARg-MODES,p-MODES, AND NEUTRINO FLUX

Autor: Charles L. Wolff

Publikováno v: The Astrophysical Journal. 701:686-697

A mixed-shell model that reflects g-modes away from the Sun's center is developed further by calibrating its parameters and evaluating a mixing mechanism: buoyancy. The shell roughly doubles g-mode oscillation periods and would explain why there is n

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a059f60f0a3d5fdeea1e143f41af3d68
https://doi.org/10.1088/0004-637x/701/1/686

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Correspondence between Solar Variability (0.6 – 7.0 Years) and the Theoretical Positions of Rotating Sets of Coupled g Modes

Autor: Charles L. Wolff, David A. Juckett

Publikováno v: Solar Physics. 257:13-36

Recently, Juckett and Wolff (Solar Phys. 252, 247, 2008) showed that the timing and longitude of sunspot patterns has some correspondence with a model based on coupled g modes. The model maximizes the nonlinear coupling of those g modes sharing harmo

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::379b9193e536464397845acb302c29b7
https://doi.org/10.1007/s11207-009-9340-y

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Evidence for Long-term Retrograde Motions of Sunspot Patterns and Indications of Coupled g-mode Rotation Rates

Autor: David A. Juckett, Charles L. Wolff

Publikováno v: Solar Physics. 252:247-266

Solar g-modes are global oscillations that would exist primarily in the radiative zone (RZ) and would be excited by either convective overshoot or nuclear burning in the core. Wolff and O’Donovan (Astrophys. J.661, 568, 2007) proposed a non-linear

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b9c722ac4c9c8d55d445be1a96ba3619
https://doi.org/10.1007/s11207-008-9265-x

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The QBO as potential amplifier and conduit to lower altitudes of solar cycle influence

Autor: F. T. Huang, Hayden S. Porter, John G. Mengel, Hans G. Mayr, Charles L. Wolff

Publikováno v: Annales Geophysicae, Vol 25, Pp 1071-1092 (2007)
Annales Geophysicae
Annales Geophysicae, European Geosciences Union, 2007, 25 (5), pp.1071-1092
Annales Geophysicae, Vol 25, Iss 5, Pp 1071-1092 (2007)

In several papers, the solar cycle (SC) effect in the lower atmosphere has been linked observationally to the Quasi-biennial Oscillation (QBO) of the zonal circulation. Salby and Callaghan (2000) in particular analyzed the QBO wind measurements, cove

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::679ba1cde98bb8079ab8f20e1b67208a
https://www.ann-geophys.net/25/1071/2007/angeo-25-1071-2007.pdf

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Coupled Groups ofg‐Modes in a Sun with a Mixed Core

Autor: Charles L. Wolff, Adam O'Donovan

Publikováno v: The Astrophysical Journal. 661:568-585

Groups of linear g-modes can sum to create long-lived nonlinear oscillations in small "hot volumes" very deep in the Sun that help drive the modes. In these volumes (dimensions -10 Mm), the time average rate of He-3 burning doubles as temperature flu

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::6a217c8c512b4adfc8660d12bcd74993
https://doi.org/10.1086/513305

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CERVICAL SPINAL KYPHOTIC DEFORMITY: A Comparative Cohort Study Analyzing Success of Surgical Correction

Autor: Thomas A. Moore, Paul G. Matz, Mark N. Hadley, Charles L. Wolff

Publikováno v: Spinal Surgery. 20:77-85

Cervical spine kyphotic deformities are common sequelae of degenerative disease. Patients may present with a combination of symptoms including myelopathy and radiculopathy. We retrospectively studied a cohort of 78 patients who underwent decompressio

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::17c547a91df0d7b43840c804939a9bb9
https://doi.org/10.2531/spinalsurg.20.77

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The Sun's Reversing Flows and Heat Spike as Caused by g -Modes

Autor: Hans G. Mayr, Charles L. Wolff

Publikováno v: The Astrophysical Journal. 606:L163-L166

The reversing east-west flows centered near 0.675 R☉ have not been explained by gravity waves from the convection zone because suitable wavelengths do not penetrate deeply enough to drive the observed flow. An alternative is explored using g-modes,

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::123c05bd0a1bbe1fc4b741a2efea2377
https://doi.org/10.1086/421327

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