Results 1 to 10 of about 639 (175)

The Sun as a driver of the inner heliosphere: Modern investigations of fundamental plasma processes [PDF]

open access: yesNature Communications
The inner heliosphere serves as a natural laboratory to study fundamental plasma physics. A robust understanding of kinetic processes will fill gaps in our global understanding of the Sun and heliosphere, with applicability to laboratory and ...
Tamar Ervin   +2 more
doaj   +2 more sources

Detection of solar QBO-like signals in earth’s magnetic field from multi-GOES mission data [PDF]

open access: yesScientific Reports, 2023
Through variations in its magnetic activity at different timescales, the Sun strongly influences the space weather conditions throughout the heliosphere. The most known solar activity variation is the Schwabe Cycle, also known as the Sunspot Cycle (SCs),
Fadil Inceoglu, Paul T. M. Loto’aniu
doaj   +2 more sources

SQUARE2: Spacecraft in QUAdrature for Solar Exploration—A Mission Concept for Synergetic Observations of the Sun and Heliosphere

open access: yesFrontiers in Astronomy and Space Sciences, 2022
SQUARE2 is the acronym for Spacecraft in QUAdrature for solaR Exploration, and is a mission concept for multi-instrumental two-point observations of the Sun and its environment. It stems from the need to have two probes that are systematically in orbital
Daniele Telloni
exaly   +3 more sources

Increased and varied radiation during the Sun’s encounters with cold clouds in the last 10 million years [PDF]

open access: yesScientific Reports
Recent research raises the possibility that 2–3 and 6–7 million years ago, the Sun encountered massive clouds that shrank the heliosphere —the solar cocoon protecting our solar system— exposing Earth to its interstellar environment, in agreement with ...
Merav Opher   +9 more
doaj   +2 more sources

Sun–Heliosphere Observation-based Ionization Rates Model [PDF]

open access: yesAstrophysical Journal, 2020
Abstract The solar wind (SW) and the extreme ultraviolet (EUV) radiation modulate fluxes of interstellar and heliospheric particles inside the heliosphere both in time and in space. Understanding this modulation is necessary to correctly interpret measurements of particles of interstellar origin inside the heliosphere.
David Mccomas   +2 more
exaly   +3 more sources

SPICE connection mosaics to link the Sun’s surface and the heliosphere

open access: yesAstronomy and Astrophysics
Aims. We present an analysis of the first connection mosaic made by the SPICE instrument on board the ESA/NASA Solar Orbiter mission on March 2, 2022. The data will be used to map coronal composition that will be compared with in-situ measurements taken by SWA/HIS to establish the coronal origin of the solar wind plasma observed at Solar Orbiter.
Natalia Zambrana Prado   +2 more
exaly   +5 more sources

Deciphering the birth region, formation, and evolution of ambient and transient solar wind using heavy ion observations

open access: yesFrontiers in Astronomy and Space Sciences, 2022
This paper outlines key scientific topics that are important for the development of solar system physics and how observations of heavy ion composition can address them.
Yeimy. J. Rivera   +16 more
doaj   +1 more source

The Stationary Electric Field in the Heliosphere and Its Possible Relation to Current Sheets

open access: yesUniverse, 2022
The nature of the large-scale electric field in the heliosphere is discussed in this paper. The electric potential along each line of the magnetic field should be constant in the ideally conductive solar wind.
Roman A. Kislov
doaj   +1 more source

DIVISION II: SUN and HELIOSPHERE [PDF]

open access: yesProceedings of the International Astronomical Union, 2008
This report is on activities of the Division at the General Assembly in Rio de Janeiro. Summaries of scientific activities over the past triennium have been published in Transactions A, see Melrose et al. (2008), Klimchuk et al. (2008), Martinez Pillet et al. (2008) and Bougeret et al. (2008).
Donald B. Melrose   +7 more
openaire   +2 more sources

Global insight into a complex-structured heliosphere based on the local multi-point analysis

open access: yesFrontiers in Astronomy and Space Sciences, 2023
From 29 January to 7 February 2022, the heliosphere was structured with large-scale interacting substructures that appeared with significant dissimilarities at distant observations separated longitudinally by ∼34°.
Sanchita Pal   +9 more
doaj   +1 more source

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