Results 31 to 40 of about 15,087 (215)

The Effect of Helio-Geomagnetic Activity in the Geo-Environment and by Extension to Human Health

open access: yesAtmosphere
Solar activity encompasses various phenomena within the solar atmosphere, notably including eruptive events like solar flares and coronal mass ejections (CMEs) [...]
Panagiota Preka-Papadema   +1 more
doaj   +1 more source

Coalescence of Magnetic Flux Ropes Within Interplanetary Coronal Mass Ejections: Multi-cases Studies

open access: yesFrontiers in Physics, 2019
Coronal mass ejections (CMEs) are intense solar explosive eruptions and have significant impact on geomagnetic activities. It is important to understand how CMEs evolve as they propagate in the solar-terrestrial space.
Yan Zhao   +7 more
doaj   +1 more source

Investigating the Magnetic Structure of Interplanetary Coronal Mass Ejections Using Simultaneous Multispacecraft In Situ Measurements

open access: yesThe Astrophysical Journal, 2023
In situ measurements from spacecraft typically provide a time series at a single location through coronal mass ejections (CMEs), and they have been one of the main methods to investigate CMEs.
F. Regnault   +7 more
doaj   +1 more source

Rotation of a Stealth CME on 2012 October 5 Observed in the Inner Heliosphere

open access: yesThe Astrophysical Journal, 2023
Coronal mass ejections (CMEs) are subject to changes in their direction of propagation, tilt, and other properties. This is because CMEs interact with the ambient solar wind and other large-scale magnetic field structures.
Sandeep Kumar   +5 more
doaj   +1 more source

Short term Variability of the Sun Earth System: An Overview of Progress Made during the CAWSES II Period [PDF]

open access: yes, 2015
This paper presents an overview of results obtained during the CAWSES II period on the short term variability of the Sun and how it affects the near Earth space environment. CAWSES II was planned to examine the behavior of the solar terrestrial system as
Gopalswamy, Nat   +2 more
core   +2 more sources

SOLAR WIND INVESTIGATIONS BY OBSERVATIONS OF INTERPLANETARY SCINTILLATIONS OF COSMIC RADIO SOURCES AT DECAMETER WAVELENGTHS

open access: yesRadio Physics and Radio Astronomy, 2017
Purpose: Description of the solar wind investigation technique based on interplanetary scintillation observations of the decameter radio emission of space radio sources.
N. N. Kalinichenko   +7 more
doaj   +1 more source

Proton Temperature Anisotropy within the Interplanetary Coronal Mass Ejections Sheath at 1 au

open access: yesThe Astrophysical Journal Letters, 2023
The sheath plasma of interplanetary coronal mass ejections (ICMEs) is highly compressed, heated, turbulent, and magnetically intense relative to the ambient solar wind.
Zubair I. Shaikh   +2 more
doaj   +1 more source

Coronal Mass Ejections and Solar Polarity Reversal

open access: yesThe Astrophysical Journal, 2003
We report on a close relationship between the solar polarity reversal and the cessation of high-latitude coronal mass ejections (CMEs). This result holds good for individual poles of the Sun for cycles 21 and 23, for which CME data are available. The high-latitude CMEs provide a natural explanation for the disappearance of the polar crown filaments ...
N. Gopalswamy   +3 more
openaire   +1 more source

Energetics of a Solar Flare and a Coronal Mass Ejection Generated by a Hot Channel Eruption

open access: yesThe Astrophysical Journal, 2023
Hot channels (HCs) are prevalent in the solar corona and play a critical role in driving flares and coronal mass ejections (CMEs). In this paper, we estimate the energy content of an X1.4 eruptive flare with a fast CME generated by an HC eruption on 2011
Qingmin Zhang   +4 more
doaj   +1 more source

Eruptions from solar ephemeral regions as an extension of the size distribution of coronal mass ejections

open access: yes, 2009
Observations of the quiet solar corona in the 171A (~1MK) passband of the Transition Region and Coronal Explorer (TRACE) often show disruptions of the coronal part of small-scale ephemeral bipolar regions that resemble the phenomena associated with ...
Aschwanden   +11 more
core   +1 more source

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