Results 31 to 40 of about 19,278 (241)

A Model for the Sources of the Slow Solar Wind [PDF]

open access: yes, 2011
Models for the origin of the slow solar wind must account for two seemingly contradictory observations: The slow wind has the composition of the closed field corona, implying that it originates from the continuous opening and closing of flux at the ...
Antiochos, S. K.   +4 more
core   +3 more sources

Heliospheric magnetic field 1835–2009 [PDF]

open access: yesJournal of Geophysical Research: Space Physics, 2010
We use recently acquired geomagnetic archival data to extend our long‐term reconstruction of the heliospheric magnetic field (HMF) strength. The 1835–2009 HMF series is based on an updated and substantiated InterDiurnal Variability (IDV) series from 1872 onwards and on Bartels' extension, by proxy, of his u‐series from 1835 to 1871. The new IDV series,
Svalgaard, Leif, Cliver, Edward W.
openaire   +2 more sources

Connection of Turbulence with Polytropic Index in the Solar Wind Proton Plasma

open access: yesEntropy, 2019
This paper improves our understanding of the interplay of the proton plasma turbulent heating sources of the expanding solar wind in the heliosphere. Evidence is shown of the connections between the polytropic index, the rate of the heat absorbed by the ...
George Livadiotis
doaj   +1 more source

Dust in the Local Interstellar Wind [PDF]

open access: yes, 1999
The gas-to-dust mass ratios found for interstellar dust within the Solar System, versus values determined astronomically for the cloud around the Solar System, suggest that large and small interstellar grains have separate histories, and that large ...
Dorschner, J. M.   +15 more
core   +2 more sources

Theoretical Refinements to the Heliospheric Upwind eXtrapolation Technique and Application to in-situ Measurements

open access: yesFrontiers in Astronomy and Space Sciences, 2022
The large-scale structure and evolution of the solar wind are typically reproduced with reasonable fidelity using three-dimensional magnetohydrodynamic (MHD) models.
Opal Issan , Pete Riley
doaj   +1 more source

Neutral interstellar He parameters in front of the heliosphere 1994--2007 [PDF]

open access: yes, 2014
Analysis of IBEX measurements of neutral interstellar He flux brought the inflow velocity vector different from the results of earlier analysis of observations from GAS/Ulysses.
Banaszkiewicz, M.   +5 more
core   +1 more source

What is the heliopause? Importance of magnetic reconnection and measurement requirements

open access: yesFrontiers in Astronomy and Space Sciences, 2023
We highlight the importance of magnetic reconnection at the heliopause, both as one of the key processes driving the interaction between solar and interstellar media, but also as an element of the definition of the heliopause itself.
B. Lavraud   +24 more
doaj   +1 more source

Complementary interstellar detections from the heliotail

open access: yesFrontiers in Astronomy and Space Sciences
The heliosphere is a protective shield around the solar system created by the Sun’s interaction with the local interstellar medium (LISM) through the solar wind, transients, and interplanetary magnetic field.
Sarah A. Spitzer   +5 more
doaj   +1 more source

Is the Sun Embedded in a Typical Interstellar Cloud?

open access: yes, 2008
The physical properties and kinematics of the partially ionized interstellar material near the Sun are typical of warm diffuse clouds in the solar vicinity.
A. Czechowski   +57 more
core   +1 more source

The Heliosphere---Blowing in the Interstellar Wind

open access: yes, 2013
Measurements of the velocity of interstellar HeI inside of the heliosphere have been conducted over the past forty years. These historical data suggest that the ecliptic longitude of the direction of the interstellar flow has increased at an average rate
Frisch, P. C.
core   +1 more source

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