Results 101 to 110 of about 14,709 (209)

The Geomagnetic Storm on 10–12 May 2024 and Its Effect on the Swedish Power Grid

Space Weather, Volume 24, Issue 2, February 2026.
Abstract On 10–12 May 2024, at least five interplanetary coronal mass ejections (ICMEs) arrived at Earth and caused the strongest geomagnetic storm in over 20 years. During this geomagnetic storm, a disturbance occurred in a transformer in southern Sweden, causing a drop in power supply in the power line connecting Sweden and Poland.
A. V. L. Wallner, A. P. Dimmock, V. Lanabere, A. Johlander, S. Molenkamp Venholen, A. Viljanen, L. Juusola, L. Rosenqvist, J. Setréus, E. Yordanova, S. Buchert, U. Heiter, Yu. V. Khotyaintsev   +12 more
wiley   +1 more source

Natural Generation of Alfvén Waves from Three-dimensional Bursty Interchange Magnetic Reconnection in the Solar Corona

The Astrophysical Journal Letters
Alfvén waves play a significant role in solar coronal heating, solar wind acceleration, and Alfvénic turbulence formation. As a fundamental process, magnetic reconnection has long been credited as a crucial source of Alfvén waves.
Liping Yang, Jiansen He, Xueshang Feng, Daniel Verscharen, Fan Guo, Hui Li, Hui Tian, Wenya Li, Fang Shen, Chuanpeng Hou, Mijie Shi, Honghong Wu, Ming Xiong   +12 more
doaj   +1 more source

Kinetic Modeling of Inertial Alfvén Waves in the Solar Corona: Implications for Heating and Particle Acceleration

Journal of Geophysical Research: Space Physics, Volume 131, Issue 1, January 2026.
Abstract Recent observations from Parker Solar Probe and Solar Orbiter highlight the importance of Alfvén waves in solar coronal heating and particle acceleration. In this study, we investigate inertial Alfvén waves (IAWs), which operate at electron inertial scales, as a potential mechanism for plasma heating and charged particle acceleration in the ...
S. Ayaz, Gary P. Zank, Imran A. Khan, Andreas Shalchi, L.‐L. Zhao, Yeimy J. Rivera   +5 more
wiley   +1 more source

Ubiquitous Small-scale Extreme-ultraviolet Upflow-like Events above Network Regions Observed by the Solar Orbiter/Extreme Ultraviolet Imager

The Astrophysical Journal
Universal small-scale solar activity in the quiet region is suggested to be a potential source of solar wind and the upper solar atmosphere. Here, with the high-resolution 174 Å imaging observations from the Solar Orbiter/Extreme Ultraviolet Imager, we ...
Yadan Duan, Hechao Chen, Zhenyong Hou, Zheng Sun, Yuandeng Shen   +4 more
doaj   +1 more source

The Chinese Radio Telescope Array for Interplanetary Scintillation Monitoring

Space Weather, Volume 24, Issue 1, January 2026.
Abstract Solar flares, coronal mass ejections (CMEs) and enegertic particles, etc., are the driving sources that may cause catastrophic space weathers. It is desirable to obtain information of solar eruptions like flares and CMEs, etc., propagating from the Sun to the near‐Earth space.
Yihua Yan, Wei Wang, Jin Fan, Ming Xiong, Zhijun Chen, Linjie Chen, Cang Su, Sha Li, Jun Cheng, Jing Du, Xueshang Feng   +10 more
wiley   +1 more source

PRELIMINARY RESULTS OF INTERFEROMETRIC OBSERVATIONS OF THE QUIET SUN AT THE FREQUENCIES 8 – 32 MHZ

Odessa Astronomical Publications, 2018
We studied a radio emission of the quiet Sun at decameter wavelengths to determine its angular dimensions. Observations were conducted using interferometers composed of antenna sections of the UTR-2 radio telescope.
V. A. Shepelev, V. N. Melnik, R. V. Vashchishin   +2 more
doaj   +1 more source

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

, 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, Aschwanden, Audard, Carolus J. Schrijver, Hagenaar, Hagenaar, Moore, Reinard, Riley, Robbrecht, Schrijver, Wang   +11 more
core   +1 more source

The Effect of Foot Reflexology Massage on Delirium and Physiological Indicators in Children Admitted to Pediatric Intensive Care Unit: A Randomized Clinical Trial

The Scientific World Journal, Volume 2026, Issue 1, 2026.
Introduction Children in pediatric intensive care units (PICUs) are commonly affected by delirium, which poses considerable challenges in clinical management. Changes in vital signs can serve as early warning indicators of disease progression in children.
Zahra Mazhari, Ali Manafi Anari, Farshad Heidari-Beni, Mona Alinejad-Naeini, Kalyani Sen   +4 more
wiley   +1 more source

Structure of the Solar Atmosphere: A Radio Perspective

Frontiers in Astronomy and Space Sciences, 2020
Solar radio emission has been providing information about the Sun for over half a century. In order to fully exploit this information, one needs to have a broader view of the solar atmosphere, which cannot be provided by radio observations alone.
Costas E. Alissandrakis
doaj   +1 more source

Coronal and chromospheric physics [PDF]

Achievements and completed results are discussed for investigations covering solar activity during the solar maximum mission and the solar maximum year; other studies of solar activity and variability; infrared and submillimeter photometry; solar-related
Jefferies, J. T., Landman, D. A., Orrall, F. Q.   +2 more
core   +1 more source