Results 31 to 40 of about 652 (175)

The Sun and heliosphere explorer – the Interhelioprobe mission

open access: yesGeomagnetism and Aeronomy, 2016
The Interhelioprobe mission aims to investigate the inner heliosphere and the Sun from close distances (up to 0.3 AU) and from out of the ecliptic plane (up to 30°). In this paper we present the relevance of the mission and its main scientific objectives, describe the scientific payload, ballistic scenario and orbits of the spacecraft. Possibilities of
Kuznetsov, V. D.   +102 more
openaire   +3 more sources

DIVISION II: SUN and HELIOSPHERE [PDF]

open access: yesProceedings of the International Astronomical Union, 2011
The solar activity cycle entered a prolonged quiet phase that started in 2008 and ended in 2010. This minimum lasted for a year longer than expected and all activity proxies, as measured from Earth and from Space, reached minimum values never observed before (de Toma, 2012).
Valentín Martínez Pillet   +8 more
openaire   +1 more source

Rotational Quasi-Periodicities and the Sun – Heliosphere Connection [PDF]

open access: yesSolar Physics, 2008
Mutual quasi-periodicities near the solar-rotation period appear in time series based on the Earth's magnetic field, the interplanetary magnetic field, and signed solar-magnetic fields. Dominant among these is one at 27.03 +/- 0.02 days that has been highlighted by Neugebauer, et al. 2000, J. Geophys. Res., 105, 2315.
Lawrence, J. K.   +2 more
openaire   +2 more sources

Division II: The Sun and Heliosphere: (Le Soleil et Heliosphere) [PDF]

open access: yesTransactions of the International Astronomical Union, 2000
Division II consists of Commissions 10 (Solar Activity), 12 (Solar Radiation and Structure), and 49 (Interplanetary Plasma and Heliosphere). More detailed information on IAU activities in each of these three areas can be found in the individual reports of the respective Commissions.The Division II OC briefly considered changes to the structure of our ...
Peter Foukal   +6 more
openaire   +1 more source

The International Heliophysical Year

open access: yesData Science Journal, 2009
The International Geophysical Year (IGY) of 1957, a broad-based and all-encompassing effort to push the frontiers of geophysics, resulted in a tremendous increase of knowledge in space physics, Sun-Earth Connection, planetary science and the heliosphere ...
Joseph M Davila   +2 more
doaj   +1 more source

Fifty years of studying the GCR intensity during inversion of the heliospheric magnetic fields. II. HMF inversion on the inner heliospheric boundary

open access: yesSolar-Terrestrial Physics
Phenomena in the outer layer of the solar atmosphere, the heliosphere, including the supersonic solar wind, the heliospheric magnetic field (HMF) carried by it, and cosmic rays propagating in the heliosphere are important for many processes occurring in ...
Krainev M. B., Kalinin M. S.
doaj   +1 more source

Solar wind stream interaction regions throughout the heliosphere

open access: yesLiving Reviews in Solar Physics, 2018
This paper focuses on the interactions between the fast solar wind from coronal holes and the intervening slower solar wind, leading to the creation of stream interaction regions that corotate with the Sun and may persist for many solar rotations. Stream
Ian G. Richardson
doaj   +1 more source

Multifractal structure of the large-scale heliospheric magnetic field strength fluctuations near 85AU [PDF]

open access: yesNonlinear Processes in Geophysics, 2004
During 2002, the Voyager 1 spacecraft was in the heliosphere between 83.4 and 85.9AU (1AU is the mean distance from the Sun to Earth) at 34° N heliographic latitude.
L. F. Burlaga
doaj  

Neural Surrogate HMC: On Using Neural Likelihoods for Hamiltonian Monte Carlo in Simulation‐Based Inference

open access: yesJournal of Geophysical Research: Machine Learning and Computation, Volume 3, Issue 5, October 2026.
Abstract Bayesian inference methods such as Markov Chain Monte Carlo (MCMC) typically require repeated computations of the likelihood function, but in some scenarios, this is infeasible and alternative methods are needed. Simulation‐based inference methods address this problem by using machine learning to amortize computations.
L. M. Wolniewicz, P. Sadowski, C. Corti
wiley   +1 more source

Type‐III Solar Radio Bursts at Mars: A 16.5‐Year Catalog From Mars Express‐MARSIS at 0.1–5.5 MHz

open access: yesSpace Weather, Volume 24, Issue 10, October 2026.
Abstract The most intense radio feature in the Solar System are the solar Type‐III radio bursts, which are associated with electron beams that propagate along open magnetic field lines. Although solar radio bursts have been studied since the 1940s, observations remain mainly restricted within 1 AU.
Beatriz Sánchez‐Cano   +22 more
wiley   +1 more source

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