Results 61 to 70 of about 109,561 (153)

Laboratory Observations of Hall Magnetic Field in Electron‐Only Magnetic Reconnection With a Guide Field

Geophysical Research Letters, Volume 52, Issue 7, 16 April 2025.
Abstract Recently, electron‐only reconnection, in which there is no obvious ion bulk flow and ion heating, has been pervasively observed in the Earth's magnetosphere. In this Letter, we realize electron‐only reconnection with a guide field in the Keda Linear Magnetized Plasma (KLMP) device.
Fa Yang, Quanming Lu, Qiaofeng Zhang, Jinlin Xie, Xinliang Gao, Yangguang Ke, Lei Tang, Shihang Hu, Yukang Shu, Youran Liu, Longlong Sang, San Lu, Rongsheng Wang, Weixing Ding   +13 more
wiley   +1 more source

Mars Upper Atmospheric Responses to the 10 September 2017 Solar Flare: A Global, Time‐Dependent Simulation

Geophysical Research Letters, 2019
We report the first global, time‐dependent simulation of the Mars upper atmospheric responses to a realistic solar flare event, an X8.2 eruption on 10 September 2017.
Xiaohua Fang, David Pawlowski, Yingjuan Ma, Stephen Bougher, Edward Thiemann, Francis Eparvier, Wenbin Wang, Chuanfei Dong, Christina O. Lee, Yaxue Dong, Mehdi Benna, Meredith Elrod, Phillip Chamberlin, Paul Mahaffy, Bruce Jakosky   +14 more
doaj   +1 more source

Are complex magnetic field structures responsible for the confined X-class flares in super active region 12192? [PDF]

, 2017
From 2014 October 19 to 27, six X-class flares occurred in super active region (AR) 12192. They were all confined flares and were not followed by coronal mass ejections (CMEs). To examine the structures of the four flares close to the solar disk center from October 22 to 26, we employ firstly composite triple-time images in each flare process to ...
arxiv   +1 more source

Sensitivity of Wintertime Arctic Black Carbon to Removal Processes and Regional Alaskan Sources

Journal of Geophysical Research: Atmospheres, Volume 130, Issue 7, 16 April 2025.
Abstract Air pollutants are primarily transported from midlatitude emission regions in winter and early spring, leading to elevated concentrations of aerosols, including black carbon (BC), in the Arctic, a phenomenon known as Arctic haze. The Weather Research and Forecasting model coupled with chemistry is used to investigate potential causes of ...
Eleftherios Ioannidis, Kathy S. Law, Jean‐Christophe Raut, Louis Marelle, Tatsuo Onishi, Elisabeth Andrews, Sho Ohata, Tatsuhiro Mori, Sara Morris, Yukata Kondo, Sangeeta Sharma, Konstantinos Eleftheriadis, Zbigniew Klimont, Antonin Soulie, Claire Granier, Patricia K. Quinn, Kerri A. Pratt   +16 more
wiley   +1 more source

Image Synthesis for Solar Flare Prediction

The Astrophysical Journal Supplement Series
Solar flare prediction is a topic of interest to many researchers owing to the potential of solar flares to affect various technological systems, both terrestrial and in orbit.
Elad Amar, Ohad Ben-Shahar
doaj   +1 more source

The relationships of solar flares with both sunspot and geomagnetic activity [PDF]

, 2011
The relationships between solar flare parameters (total importance, time duration, flare index, and flux) and sunspot activity (Rz) as well as those between geomagnetic activity (aa index) and the flare parameters can be well described by an integral response model with the response time scales of about eight and thirteen months, respectively. Compared
arxiv   +1 more source

The Eddy Flux Transport of the Magnetohydrodynamic Quasi‐Geostrophic Disturbances

Geophysical Research Letters, Volume 52, Issue 7, 16 April 2025.
Abstract The classic Eliassen‐Palm (E‐P) flux in the geophysical fluid dynamics is a vector to qualify the eddy momentum and heat flux transport by Rossby waves in the latitude‐height plane. In this investigation, we derive two magnetic E‐P fluxes to quantify the eddy energy transport by magnetic Rossby waves by using magnetohydrodynamic quasi ...
Chengkang Li, Yaokun Li
wiley   +1 more source

Early Abnormal Temperature Structure of X-ray Looptop Source of Solar Flares [PDF]

, 2008
This Letter is to investigate the physics of a newly discovered phenomenon -- contracting flare loops in the early phase of solar flares. In classical flare models, which were constructed based on the phenomenon of expansion of flare loops, an energy releasing site is put above flare loops.
arxiv   +1 more source

The Magnetic Topology of AR13664 Leading to Its First Halo CME

Journal of Geophysical Research: Space Physics, Volume 130, Issue 4, April 2025.
Abstract In the first half of May 2024, the solar active region (AR) NOAA 13664 was responsible for generating the strongest geomagnetic storm in over 20 years through an enhanced production of coronal mass ejections (CMEs). A key factor in this production was the complex magnetic topology of AR13664.
D. MacTaggart, T. Williams, O. P. M. Aslam   +2 more
wiley   +1 more source

The Shape of M Dwarf Flares in Kepler Light Curves [PDF]

, 2015
Ultra-precise light curves from Kepler provide the best opportunity to determine rates and statistical properties of stellar flares. From 11 months of data on the active M4 dwarf, GJ 1243, we have built the largest catalog of flares for a single star: over 6100 events.
arxiv   +1 more source