Results 51 to 60 of about 260,299 (222)

A Small Pathbreaking Spacecraft: Giants of Space Research (Bernard Blake, Dieter Hovestadt, and Edward Stone)

open access: yesPerspectives of Earth and Space Scientists, Volume 6, Issue 1, December 2025.
Abstract The Solar, Anomalous, and Magnetospheric Explorer (SAMPEX) mission launched in July 1992 was the first NASA “Small Explorer” project. It had the goal to show how space missions could be developed much more rapidly than had become the situation in the 1980s and 1990s.
D. N. Baker, G. M. Mason
wiley   +1 more source

Comment on "Solar Wind and Heavy Ion Properties of Interplanetary Coronal Mass Ejections" by M.J.Owens [PDF]

open access: yesarXiv, 2020
A recent paper by Owens (2018) presents a statistical analysis of the properties of interplanetary coronal mass ejections (ICMEs) and variations in their compositions and ion charge-state signatures using data from the Advanced Composition Explorer (ACE) spacecraft. However, the article contains several serious flaws, which we will discuss here.
arxiv  

Redefining the boundaries of interplanetary coronal mass ejections from observations at the ecliptic plane [PDF]

open access: yesAstrophysical Journal, 828, 11, (2016), 2016
On 2015 January 6-7, an interplanetary coronal mass ejection (ICME) was observed at L1. This event, which can be associated with a weak and slow coronal mass ejection, allows us to discuss on the differences between the boundaries of the magnetic cloud and the compositional boundaries.
arxiv   +1 more source

Ionospheric Disturbances in GNSS TEC Data: SpaceX Falcon 9 Deorbit Maneuvers Over CONUS in April–May 2024

open access: yesGeophysical Research Letters, Volume 52, Issue 8, 28 April 2025.
Abstract Traveling ionospheric disturbances (TIDs) driven by a large number of internal and external sources are detectable with dense networks of ground‐based Global Navigation Satellite System (GNSS) receivers' measurements of total electron content (TEC).
P. A. Inchin   +6 more
wiley   +1 more source

Hemispheric Distribution of Halo Coronal Mass Ejection Source Locations

open access: yesThe Astrophysical Journal
The hemispheric asymmetry of solar activity is one of the essential physical consequences of the interior dynamo process. However, the hemispheric distribution of halo coronal mass ejection (HCME) source locations has not been investigated in detail ...
XiaoJuan Zhang   +4 more
doaj   +1 more source

Empirical Functions for Highly Charged Ion Abundances in Solar Wind Charge Exchange Models: Addressing Post‐2011 ACE Data Limitations

open access: yesGeophysical Research Letters, Volume 52, Issue 8, 28 April 2025.
Abstract Upcoming imaging missions—NASA's LEXI and ESA/CAS's SMILE—will target solar wind charge exchange X‐ray (SWCX) emission from Earth's magnetosheath. This emission is generated by highly charged ions colliding with neutrals in Earth's exosphere.
D. Koutroumpa   +5 more
wiley   +1 more source

Source region of the 2003 November 18 CME that led to the strongest magnetic storm of cycle 23 [PDF]

open access: yes, 2008
The super-storm of November 20, 2003 was associated with a high speed coronal mass ejection which originated in the NOAA AR 10501 on November 18. This coronal mass ejection had severe terrestrial consequences leading to a geomagnetic storm with DST index of -472 nT, the strongest of the current solar cycle.
arxiv   +1 more source

Severe Distortion of the Apparent Resistivity Induced by the Super Geomagnetic Storm in May 2024

open access: yesGeophysical Research Letters, Volume 52, Issue 8, 28 April 2025.
Abstract The potential hazard of geomagnetically induced current (GIC) in metallic pipelines caused by space weather events is a widely discussed topic. On 10–11 May 2024, a super geomagnetic storm with Kp = 9 comparable to the Halloween event in 2003 occurred. The storm induced GIC caused severe distortion in apparent resistivity is a novel phenomenon.
Xin Zhang   +4 more
wiley   +1 more source

Solar Activity: Triennial Report of IAU Commission 10 (2006-2009) [PDF]

open access: yesarXiv, 2008
Commission 10 deals with solar activity in all of its forms, ranging from the smallest nanoflares to the largest coronal mass ejections. This report reviews scientific progress over the roughly two-year period ending in the middle of 2008. This has been an exciting time in solar physics, highlighted by the launches of the Hinode and STEREO missions ...
arxiv  

Suzaku detection of enigmatic geocoronal solar wind charge exchange event associated with coronal mass ejection [PDF]

open access: yes, 2019
Suzaku detected an enhancement of soft X-ray background associated with solar eruptions on 2013 April 14-15. The solar eruptions were accompanied by an M6.5 solar flare and a coronal mass ejection with magnetic flux ropes. The enhanced soft X-ray background showed a slight variation in half a day and then a clear one in a few hours. The former spectrum
arxiv   +1 more source

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