Prosiectau fesul blwyddyn
Crynodeb
This study addresses the limitations of singleviewpoint observations of Coronal Mass Ejections (CMEs) by presenting results from a 3D catalog of 360 CMEs during solar cycle 24, fitted using the Graduated Cylindrical Shell (GCS) model. The data set combines 326 previously analyzed CMEs and 34 newly examined events, categorized by their source regions into active region (AR) eruptions, active prominence (AP) eruptions, and prominence eruptions (PE). Estimates of errors are made using a bootstrapping approach. The findings highlight that the average 3D speed of CMEs is ∼1.3 times greater than the 2D speed. PE CMEs tend to be slow, with an average speed of 432 km s−1. AR and AP speeds are higher, at 723 and 813 km s−1, respectively, with the latter having fewer slow CMEs. The distinctive behavior of AP CMEs is attributed to factors like overlying magnetic field distribution or geometric complexities leading to less accurate GCS fits. A linear fit of projected speed to width gives a gradient of ∼2 km s−1 deg−1, which increases to 5 km s−1 deg−1 when the GCSfitted ‘true’ parameters are used. Notably, AR CMEs exhibit a high gradient of 7 km s−1 deg−1, while AP CMEs show a gradient of 4 km s−1 deg−1. PE CMEs, however, lack a significant speedwidth relationship. We show that fitting multiviewpoint CME images to a geometrical model such as GCS is important to study the statistical properties of CMEs, and can lead to a deeper insight into CME behavior that is essential for improving future space weather forecasting.
Iaith wreiddiol  Saesneg 

Rhif yr erthygl  e2023SW003805 
Nifer y tudalennau  20 
Cyfnodolyn  Space Weather 
Cyfrol  22 
Rhif cyhoeddi  2 
Dynodwyr Gwrthrych Digidol (DOIs)  
Statws  Cyhoeddwyd  19 Chwef 2024 
Ôl bys
Gweld gwybodaeth am bynciau ymchwil 'Correcting Projection Effects in CMEs Using GCSBased Large Statistics of MultiViewpoint Observations'. Gyda’i gilydd, maen nhw’n ffurfio ôl bys unigryw.Setiau Data

Harshu939/sc24_3d_2d_cmedataset: A combined catalog of 3D and 2D CME Kinematics
Gandhi, H., Zenodo, 06 Chwef 2024
Dangosydd eitem ddigidol (DOI): 10.5281/zenodo.10624334, https://github.com/Harshu939/sc24_3d_2d_cmedataset
Set ddata
Ffeil
Prosiectau
 1 Wedi Gorffen

EMPSOL: An empirical model of the solar wind: a new approach to space weather forecasting
Morgan, H. (Prif Ymchwilydd)
01 Gorff 2020 → 30 Meh 2023
Prosiect: Ymchwil a ariannwyd yn allanol
Y Wasg / Y Cyfryngau

Data on Technology Reported by Researchers at Aberystwyth University (Correcting Projection Effects In Cmes Using Gcsbased Large Statistics of Multiviewpoint Observations)
25 Maw 2024
1 eitem o Sylw ar y cyfryngau
Y Wasg / Cyfryngau: Darllediadau'r cyfryngau