Results 71 to 80 of about 11,117 (189)

New Arabic Records From Cairo on Supernovae 1181 and 1006

Astronomische Nachrichten, Volume 346, Issue 9, November 2025.
ABSTRACT The remnant of the historical supernova SN 1181 is under discussion: While the previously suggested G130.7+3.1 (3C58) appears too old (3000–5000 year), the unusual star IRAS00500+6713 with a surrounding nebula (Pa‐30) has an expansion age not inconsistent with a SN Iax explosion in ad 1181 under the assumption that neither acceleration nor ...
J. G. Fischer, H. Halm, R. Neuhäuser, D. L. Neuhäuser   +3 more
wiley   +1 more source

The Composition and Stratospheric Fate of Aerosol Particles Originating in the Polar Vortex

Journal of Geophysical Research: Atmospheres, Volume 130, Issue 20, 28 October 2025.
Abstract Stratospheric aerosol plays a significant role in the Earth's energy balance, primarily through its direct interaction with solar radiation. It is also an important chemical reactor that contributes to the multiphase chemistry of ozone destruction by halogen compounds.
Michael J. Lawler, Gregory P. Schill, Daniel M. Murphy, Maya Abou‐Ghanem, Charles A. Brock, Ming Lyu, Adam T. Ahern, Samuel J. Taylor, Eric J. Hintsa, Fred L. Moore, Geoffrey S. Dutton, J. David Nance, Bradley D. Hall, R. Bradley Pierce, Eric A. Ray, Troy D. Thornberry   +15 more
wiley   +1 more source

Why Do Torus-unstable Solar Filaments Experience Failed Eruptions?

The Astrophysical Journal Letters, 2019
Abstract We study the magnetic field and 3D configuration of 16 filament eruptions during 2010 July–2013 February in order to investigate the factors that control the success and/or failure of solar eruptions. All of these events, i.e., eruptions that failed to be ejected and become coronal mass ejections, have filament maximum heights ...
Zhenjun 振军 Zhou 周, Xin Cheng, Jie Zhang, Yuming Wang, Dong Wang, Lijuan Liu, Bin Zhuang, Jun Cui   +7 more
openaire   +4 more sources

The Deformation of an Erupting Magnetic Flux Rope in a Confined Solar Flare

The Astrophysical Journal Letters, 2023
Magnetic flux ropes (MFRs), sets of coherently twisted magnetic field lines, are believed as core structures of various solar eruptions. Their evolution plays an important role to understand the physical mechanisms of solar eruptions, and can shed light ...
Ruisheng Zheng, Yihan Liu, Liang Zhang, Yang Liu, Changhui Rao, Qing Lin, Zhimao Du, Libo Zhong, Huadong Chen, Yao Chen   +9 more
doaj   +1 more source

Geoeffectivity of Solar Wind Heavy Ions

Journal of Geophysical Research: Space Physics, Volume 130, Issue 10, October 2025.
Abstract The influence of solar wind properties, such as the southward interplanetary magnetic field, on geomagnetic activity has been well established. However, the role of heavy ions (i.e., particles heavier than protons) in the solar wind on geomagnetic storms is not fully understood.
Chris Jia, Susan T. Lepri, Liang Zhao, Jim M. Raines, Daniel Welling, Jennifer A. Carter, Simona Nitti   +6 more
wiley   +1 more source

Splitting and Eruption of an Active Region Filament Caused by Magnetic Reconnection

The Astrophysical Journal
To gain a deeper understanding of the intricate process of filament eruption, we present a case study of a filament splitting and erupting by using multiwavelength data of the Solar Dynamics Observatory. It is found that the magnetic reconnection between
Defang Kong, Jincheng Wang, Genmei Pan
doaj   +1 more source

Optimization of the FRi3D CME Model in EUHFORIA

Space Weather, Volume 23, Issue 9, September 2025.
Abstract To study the evolution and propagation of Coronal Mass Ejections (CMEs), the advanced magnetized flux rope CME model, Flux Rope in 3D (FRi3D), has been integrated into the European Heliospheric Forecasting Information Asset (EUHFORIA). Recent updates have been addressing the computational efficiency and numerical stability issues of this CME ...
M. Flossie, A. Maharana, L. Linan, K. Plets, A. Isavnin, S. Poedts   +5 more
wiley   +1 more source

Observations of a New Form of Partial Filament Eruption

The Astrophysical Journal Letters
Coronal mass ejections (CMEs) and coronal jets are two of the best-studied forms of solar eruptions, with the same underlying physics. Previous studies have presented partial eruptions producing coronal jets.
Abril Sahade, Judith T. Karpen, Spiro K. Antiochos   +2 more
doaj   +1 more source

Forecasting Coronal Mass Ejections Using Transformers: A Comparative Study of Flare‐Associated Versus Flare‐Independent Approaches

Space Weather, Volume 23, Issue 8, August 2025.
Abstract Forecasting coronal mass ejections (CMEs) remains a challenge, and no reliable, accurate forecasting method has yet been developed. Knowing that CMEs can occur in association with flares, we compare two approaches: (a) forecasting CMEs by coupling to flare forecasting, and (b) forecasting CMEs independently of flare occurrence.
Julio Hernandez Camero, Lucie M. Green
wiley   +1 more source

Photospheric Horizontal Magnetic Field Decrease Preceding a Major Solar Eruption

The Astrophysical Journal
Significant photospheric magnetic field changes during major solar eruptions—interpreted as coronal feedback from eruptions to the photosphere—are well-observed. However, analogous short-timescale field changes preceding eruptions are rarely reported. In
Lijuan Liu, Hanzhao Yang
doaj   +1 more source