Results 31 to 40 of about 4,172 (194)

Dynamics of coronal mass ejections [PDF]

Astronomy & Astrophysics, 2008
Context. Coronal and interplanetary propagation of coronal mass ejections (CMEs) is strongly affected by aerodynamic drag. Aims. The dependence of the drag acceleration on the mass of the CMEs is investigated to establish a quantitative empirical relationship, which might be important in semi-empirical space-weather forecasting. Methods.
Vršnak, Bojan, Vrbanec, Dijana, Čalogović, Jaša   +2 more
openaire   +2 more sources

“Two‐For‐One”: 4D Cardiac and Pulmonary MR Imaging From a Single Acquisition Using bSTAR

Magnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose To generate 4D (3D+time) images of both the heart and lungs using a single volumetric radial free‐breathing bSSFP dual echo acquisition (bSTAR) with two image reconstructions within a single pipeline deployed inline at 0.55 and 1.5 T.
Pierre Daudé, Jordan Taylor, Joseph W. Plummer, Rajiv Ramasawmy, Anastasia Tsakirellis, Joel Moss, W. Patricia Bandettini, Marcus Chen, Adrienne E. Campbell‐Washburn, Ahsan Javed   +9 more
wiley   +1 more source

CAMEL. II. A 3D Coronal Mass Ejection Catalog Based on Coronal Mass Ejection Automatic Detection with Deep Learning

The Astrophysical Journal Supplement Series
Coronal mass ejections (CMEs) are major drivers of geomagnetic storms, which may cause severe space weather effects. Automating the detection, tracking, and three-dimensional (3D) reconstruction of CMEs is important for operational predictions of CME ...
Jiahui Shan, Huapeng Zhang, Lei Lu, Yan Zhang, Li Feng, Yunyi Ge, Jianchao Xue, Shuting Li   +7 more
doaj   +1 more source

Terendak Military Cemetery: Bodies, Burials, and ‘Operation Bring Them Home'

Australian Journal of Politics &History, EarlyView.
Terendak Military Cemetery occupies an unusual position in the history of Australian war cemeteries. Initially established to service the needs of the community at Terendak Garrison—the operational base for Commonwealth forces in Malaya during the early years of the Cold War—it became the official overseas burial site of Australian dead during the ...
Hannah Swaine, Kate Ariotti
wiley   +1 more source

Understanding the Complex Morphology of a Coronal Mass Ejection. II. How Pre-eruptive Conditions Shape Coronal Mass Ejection Evolution

The Astrophysical Journal
The morphology and heliospheric impact of coronal mass ejections (CMEs) are strongly shaped by their pre-eruptive magnetic configuration and surrounding coronal environment, yet these influences remain difficult to constrain observationally. We analyze a
Abril Sahade, Cecilia Mac Cormack, Angelos Vourlidas, Teresa Nieves-Chinchilla, Cooper Downs, Clementina Sasso, Judith T. Karpen   +6 more
doaj   +1 more source

Unusual shrinkage and reshaping of Earth’s magnetosphere under a strong northward interplanetary magnetic field

Communications Earth & Environment, 2023
Open magnetic flux in the polar cap almost completely disappeared and the Earth’s magnetotail was compressed into a calabash shape during the 9th April 2015 coronal mass ejection, according to magnetohydrodynamic simulations and observations from DMSP ...
Xiang-Yu Wang, Qing-He Zhang, Chi Wang, Yong-Liang Zhang, Bin-Bin Tang, Zan-Yang Xing, Kjellmar Oksavik, Larry R. Lyons, Michael Lockwood, Qiu-Gang Zong, Guo-Jun Li, Jing Liu, Yu-Zhang Ma, Yong Wang   +13 more
doaj   +1 more source

Coronal mass ejection plasma diagnostics using Metis coronagraph

Astronomy & Astrophysics
Context. We investigate the physical conditions of erupting prominences embedded in coronal mass ejection (CME) cores. Aims. The physical parameters of interest were derived by combining the hydrogen Lyman α (Lα) and visible-light (VL) images ...
Jejčič S., Heinzel P., Russano G., Andretta V., Schwartz P., Štěpán J., Susino R., Romoli M., Burtovoi A., De Leo Y., Jerse G., Landini F., Nicolini G., Pancrazzi M., Sasso C.   +14 more
doaj   +1 more source

Spaceborne and spaceborn: Physiological aspects of pregnancy and birth during interplanetary flight

Experimental Physiology, EarlyView.
Abstract Crewed interplanetary return missions that are on the planning horizon will take years, more than enough time for initiation and completion of a pregnancy. Pregnancy is viewed as a sequence of processes – fertilization, blastocyst formation, implantation, gastrulation, placentation, organogenesis, gross morphogenesis, birth and neonatal ...
Arun V. Holden
wiley   +1 more source

Post‐Sunset Merging of Equatorial Ionization Anomaly Crests Into a Single Peak Over ∼35° Longitude During the 19 January 2026 Geomagnetic Superstorm

Geophysical Research Letters, Volume 53, Issue 16, 28 August 2026.
Abstract We investigate the nighttime equatorial ionosphere during the 19 January 2026 geomagnetic storm using Global‐scale Observations of the Limb and Disk OI 135.6 nm observations and ground‐based GPS Total Electron Content. The observations reveal a pronounced longitudinal asymmetry in the post‐sunset equatorial ionization anomaly (EIA).
Deepak K. Karan, Richard W. Eastes, Kuldeep Pandey, Wenbin Wang, Carlos R. Martinis, Robert E. Daniell, Quan Gan   +6 more
wiley   +1 more source

Mirror-mode Structures in Coronal Mass Ejection Sheaths

The Astrophysical Journal
Coronal mass ejections (CMEs) compress the upstream solar wind as they travel through interplanetary space, forming sheath regions and preceding shocks rich in plasma dynamics.
J. H. Gao, S. T. Yao, H. Zhang, Q. Q. Shi   +3 more
doaj   +1 more source