Results 31 to 40 of about 15,246 (211)

Solar Mass Ejections and Coronal Holes [PDF]

open access: yesInternational Astronomical Union Colloquium, 1996
AbstractIn this paper we present observations of two types of solar mass ejections, which seem to be associated with the location of coronal holes. In the first type, a filament eruption was observed near a coronal hole, which gave rise to a strong interplanetary scintillations, as detected by IPS observations.
openaire   +1 more source

Energetics of solar coronal mass ejections [PDF]

open access: yesAstronomy & Astrophysics, 2007
Aims: We investigate whether solar coronal mass ejections are driven mainly by coupling to the ambient solar wind or through the release of internal magnetic energy. Methods: We examine the energetics of 39 flux-rope like coronal mass ejections (CMEs) from the Sun using data in the distance range $\sim$ 2--20 $R_{\odot}$ from the Large Angle ...
Subramanian, Prasad, Vourlidas, Angelos
openaire   +2 more sources

Estimating the Transit Speed and Time of Arrival of Interplanetary Coronal Mass Ejections Using CME and Solar Flare Data

open access: yesUniverse, 2022
The dependence of Interplanetary Coronal Mass Ejections’ (ICMEs) transit speed on the corresponding Coronal Mass Ejections’ (CMEs) initial speed is investigated.
Anatoly Belov   +4 more
doaj   +1 more source

Commission 10: Solar Activity [PDF]

open access: yes, 2007
Commission 10 aims at the study of various forms of solar activity, including networks, plages, pores, spots, fibrils, surges, jets, filaments/prominences, coronal loops, flares, coronal mass ejections (CMEs), solar cycle, microflares, nanoflares ...
Benz, A.O.   +10 more
core   +2 more sources

Numerical simulations of the solar corona and Coronal Mass Ejections [PDF]

open access: yesEarth, Planets and Space, 2009
Abstract Numerical simulations of Coronal Mass Ejections (CMEs) can provide a deeper insight in the structure and propagation of these impressive solar events. In this work, we present our latest results of numerical simulations of the initial evolution of a fast CME.
Poedts, Stefaan   +4 more
openaire   +1 more source

Radiation-Resistant Aluminum Alloy for Space Missions in the Extreme Environment of the Solar System. [PDF]

open access: yesAdv Mater
A novel ultrafine‐grained aluminum crossover alloy exhibits unprecedented radiation resistance and mechanical stability under extreme irradiation doses up to 100 dpa. The exceptional resilience arises from thermodynamically stable T‐phase precipitates, enabling lightweight structural materials for next‐generation spacecraft and extraterrestrial ...
Willenshofer PD   +9 more
europepmc   +2 more sources

STOCHASTICITY AND PERSISTENCE OF SOLAR CORONAL MASS EJECTIONS

open access: yesThe Astrophysical Journal, 2013
The study of the statistical properties of coronal mass ejections (CMEs) reveals that their properties depend on the period of solar activity. In particular, when investigating the origin of the waiting time distribution between CMEs, a significant departure from a Poisson process during periods of high solar activity has been found, thus suggesting ...
Vincenzo Carbone   +4 more
openaire   +2 more sources

Coronal mass ejections from the same active region cluster: Two different perspectives [PDF]

open access: yes, 2015
The cluster formed by active regions (ARs) NOAA 11121 and 11123, approximately located on the solar central meridian on 11 November 2010, is of great scientific interest.
Cremades, H.   +3 more
core   +3 more sources

Near-earth solar wind flows and related geomagnetic activity during more than four solar cycles (1963–2011)

open access: yesJournal of Space Weather and Space Climate, 2012
In past studies, we classified the near-Earth solar wind into three basic flow types based on inspection of solar wind plasma and magnetic field parameters in the OMNI database and additional data (e.g., geomagnetic indices, energetic particle, and ...
Richardson Ian G., Cane Hilary V.
doaj   +1 more source

Mechanisms and Observations of Coronal Dimming for the 2010 August 7 Event [PDF]

open access: yes, 2014
Coronal dimming of extreme ultraviolet (EUV) emission has the potential to be a useful forecaster of coronal mass ejections (CMEs). As emitting material leaves the corona, a temporary void is left behind which can be observed in spectral images and ...
Caspi, A.   +4 more
core   +3 more sources

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