Results 11 to 20 of about 5,529 (192)

Gravitational Helioseismology? [PDF]

open access: yesPhysical Review D, 1996
The magnitudes of the external gravitational perturbations associated with the normal modes of the Sun are evaluated to determine whether these solar oscillations could be observed with the proposed Laser Interferometer Space Antenna (LISA), a network of
B. F. Schutz   +17 more
core   +6 more sources

Local Helioseismology [PDF]

open access: yesLiving Reviews in Solar Physics, 2005
We review the current status of local helioseismology, covering both theoretical and observational results. After a brief introduction to solar oscillations and wave propagation through inhomogeneous media, we describe the main techniques of local ...
Gizon Laurent, Birch Aaron C.
doaj   +3 more sources

Neutrino Helioseismology

open access: yes, 1992
The observed deficit of $\rm ^8B$ solar neutrinos may call for an improved standard model of the sun or an expanded standard model of particle physics ({\it e.g.,} with neutrino masses and mixing).
De Rújula, A., Glashow, S. L.
core   +4 more sources

The Phanerozoic climate. [PDF]

open access: yesAnn N Y Acad Sci, 2023
We review the long‐term climate variations during the last 540 million years (Phanerozoic Eon). We first summarize the geological and geochemical datasets available for reconstruction of long‐term climate variations. We then explore the main drivers of climate that appear to explain a large fraction of these climatic oscillations. The first is the long‐
Shaviv NJ, Svensmark H, Veizer J.
europepmc   +2 more sources

Equatorially trapped Rossby waves in radiative stars

open access: yesAstronomische Nachrichten, Volume 344, Issue 10, December 2023., 2023
Abstract Observations by recent space missions reported the detection of Rossby waves (r‐modes) in light curves of many stars (mostly A, B, and F spectral types) with outer radiative envelope. This article aims to study the theoretical dynamics of Rossby‐type waves in such stars. Hydrodynamic equations in a rotating frame were split into horizontal and
Mariam Albekioni   +4 more
wiley   +1 more source

SunSCC: Segmenting, Grouping and Classifying Sunspots From Ground‐Based Observations Using Deep Learning

open access: yesJournal of Geophysical Research: Space Physics, Volume 128, Issue 12, December 2023., 2023
Abstract We propose a fully automated system to detect, aggregate, and classify sunspot groups according to the McIntosh scheme using ground‐based white light (WL) observations from the USET facility located at the Royal Observatory of Belgium. The sunspot detection uses a Convolutional Neural Network (CNN), trained from segmentation maps obtained with
Niels Sayez   +4 more
wiley   +1 more source

Thermodynamic and transport properties of plasmas: Low‐density benchmarks

open access: yesContributions to Plasma Physics, Volume 63, Issue 9-10, October-November 2023., 2023
Abstract Physical properties of plasmas, such as equations of state (EoS) and transport coefficients, are expressed in terms of correlation functions, which can be calculated using various approaches (analytical theory and numerical simulations). The method of Green's functions provides benchmark values for these properties in the low‐density limit ...
G. Röpke
wiley   +1 more source

SANS: Publicly Available Daily Multi‐Scale Seismic Ambient Noise Source Maps

open access: yesJournal of Geophysical Research: Solid Earth, Volume 128, Issue 1, January 2023., 2023
Abstract Seismic ambient noise sources have received increased attention recently, creating new possibilities to study the Earth's subsurface and the atmosphere‐ocean‐solid Earth coupling. In efforts to locate such noise sources using nonlinear finite‐frequency inversions, methodological developments such as pre‐computed wavefields and spatially ...
Jonas K. H. Igel   +2 more
wiley   +1 more source

The future of Genesis science. [PDF]

open access: yesMeteorit Planet Sci, 2019
Abstract Solar abundances are important to planetary science since the prevalent model assumes that the composition of the solar photosphere is that of the solar nebula from which planetary materials formed. Thus, solar abundances are a baseline for planetary science.
Burnett DS, Jurewicz AJG, Woolum DS.
europepmc   +2 more sources

Assessing the Influence of Input Magnetic Maps on Global Modeling of the Solar Wind and CME‐Driven Shock in the 2013 April 11 Event

open access: yesSpace Weather, Volume 20, Issue 3, March 2022., 2022
Abstract In the past decade, significant efforts have been made in developing physics‐based solar wind and coronal mass ejection (CME) models, which have been or are being transferred to national centers (e.g., SWPC, Community Coordinated Modeling Center) to enable space weather predictive capability.
Meng Jin   +2 more
wiley   +1 more source

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