Results 21 to 30 of about 3,863 (206)

Simultaneous interplanetary scintillation and Heliospheric Imager observations of a coronal mass ejection [PDF]

open access: yes, 2008
We describe simultaneous Interplanetary Scintillation (IPS) and STEREO Heliospheric Imager (HI) observations of a coronal mass ejection (CME) on 16 May 2007. Strong CME signatures were present throughout the IPS observation.
Rouillard AP   +23 more
core   +1 more source

Quantifying the Agyrotropy of Proton and Electron Heating in Turbulent Plasmas

open access: yesThe Astrophysical Journal, 2023
An important aspect of energy dissipation in weakly collisional plasmas is that of energy partitioning between different species (e.g., protons and electrons) and between different energy channels.
Yan Yang   +10 more
doaj   +1 more source

Cluster observations of the midaltitude cusp under strong northward interplanetary magnetic field [PDF]

open access: yes, 2008
We report on a multispacecraft cusp observation lasting more than 100 min. We determine the cusp boundary motion and reveal the effect on the cusp size of the interplanetary magnetic field (IMF) changing from southward to northward.
Reme, Henri   +17 more
core   +1 more source

Planar Magnetic Structures Downstream of Coronal Mass Ejection–driven Shocks in the Inner Heliosphere

open access: yesThe Astrophysical Journal, 2023
Planar magnetic structures (PMSs), characterized by interplanetary magnetic field vectors remaining parallel to a specific plane, are commonly observed in the solar wind, especially in the sheath region of interplanetary coronal mass ejections (ICMEs ...
Mengsi Ruan   +9 more
doaj   +1 more source

IMF dependence of the open-closed field line boundary in Saturn's ionosphere, and its relation to the UV auroral oval observed by the Hubble Space Telescope [PDF]

open access: yes, 2007
We study the dependence of Saturn's magnetospheric magnetic field structure on the interplanetary magnetic field (IMF), together with the corresponding variations of the open-closed field line boundary in the ionosphere.
Badman, S. V.   +13 more
core   +1 more source

From the Sun’s atmosphere to the Earth’s atmosphere: an overview of scientific models available for space weather developments [PDF]

open access: yesAnnales Geophysicae, 2002
Space weather aims at setting operational numerical tools in order to nowcast, forecast and quantify the solar activity events, the magnetosphere, ionosphere and thermosphere responses and the consequences on our technological societies.
C. Lathuillère   +7 more
doaj   +1 more source

Compression of the Earth's magnetotail by interplanetary shocks directly drives transient magnetic flux closure [PDF]

open access: yes, 2006
peer reviewedWe use a novel method to evaluate the global opening and closure of magnetic flux in the terrestrial system, and to analyse two interplanetary shock passages that occurred during magnetically quiet periods.
Palmroth, Minna   +26 more
core   +1 more source

Betatron Acceleration of Suprathermal Electrons within a Small-scale Flux Rope in the Solar Wind

open access: yesThe Astrophysical Journal Letters, 2023
A growing body of evidence from observations, theories, and simulations indicates that particles can be effectively accelerated in solar wind regions filled with dynamic small-scale flux ropes (FRs).
Weiduo Meng   +9 more
doaj   +1 more source

From the Sun to the Earth: The 13 May 2005 Coronal Mass Ejection [PDF]

open access: yes, 2010
We report the results of a multi-instrument, multi-technique, coordinated study of the solar eruptive event of 13 May 2005. We discuss the resultant Earth-directed (halo) coronal mass ejection (CME), and the effects on the terrestrial space environment ...
Chashei, I. V.   +111 more
core   +1 more source

Physical Properties of the Interplanetary Dust [PDF]

open access: yesInternational Astronomical Union Colloquium, 1971
The interplanetary dust may be composed of cometary material, interstellar grains, debris from asteroidal collisions, primordial material formed by direct condensation, or contributions from all of these sources. Before we can determine the origin of the dust, we need to know its physical nature, spatial distribution, and the dynamical forces that act ...
openaire   +1 more source

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