Results 61 to 70 of about 549 (204)

A filament eruption and coronal mass ejection from a superflare on a young Sun-like star [PDF]

, 2023
We report that our optical spectroscopic observation of the young solar-type star EK Draconis reveals the first evidence for a stellar filament eruption associated with a superflare on a young Sun-like star EK Draconis. We monitored EK Draconis for about
Shibata, Kazunari, Nogami, Daisaku, Namekata, Kosuke, Honda, Satoshi, Notsu, Yuta, Maehara, Hiroyuki   +5 more
core   +1 more source

Abundant interactions and feedbacks between aquatic deoxygenation and the other planetary boundaries suggest “unsafe” levels of oxygen loss with far‐reaching impacts

Limnology and Oceanography, Volume 71, Issue 7, July 2026.
Abstract Oxygen is critical for nearly all life on Earth, including aquatic species that breathe dissolved oxygen in both freshwater and marine systems. The rapid, global, and anthropogenic loss of dissolved oxygen known as “aquatic deoxygenation” threatens life in these environments, the human communities that depend on them, and Earth system ...
Erica M. Ferrer, Yassir A. Eddebbar, Shailja Gangrade, Lillian R. McCormick, Ariel K. Pezner, De'Marcus Robinson, Véronique Garçon, Kevin C. Rose, Lisa A. Levin   +8 more
wiley   +1 more source

Development and application of a global magnetic field evolution model for the solar corona [PDF]

, 2009
Magnetic fields are fundamental to the structure and dynamics of the Sun’s corona. Observations show them to be locally complex, with highly sheared and twisted fields visible in solar filaments/prominences.
Yeates, Anthony Robinson
core  

How Reconnection-unfavored Magnetic Flux Emergence Suppresses Solar Filament Eruptions

The Astrophysical Journal Letters
Magnetic flux emergence is traditionally considered to be a key trigger of solar filament eruptions, yet its role in suppressing filament eruptions remains less understood.
Chengrui Zhou, Yuandeng Shen, Chun Xia, Hao Liang, Zehao Tang, Dongxu Liu, Surui Yao   +6 more
doaj   +1 more source

Interplanetary Tracking of the 23 March 2024 CME: Computer Tomographic Analyses of IPS, White‐Light, and Type II Radio Burst Observations

Journal of Geophysical Research: Space Physics, Volume 131, Issue 7, July 2026.
Abstract We analyze the propagation of a coronal mass ejection (CME) observed on 23 March 2024, at 01:25 UT by SOHO/LASCO using a multi‐instrument and multi‐method approach. The study combines Interplanetary Scintillation (IPS), type II radio bursts, white‐light, in‐situ observations, and 3D tomographic reconstruction of the inner heliospheric density.
G. Baron, E. Aguilar‐Rodríguez, O. Chang, M. M. Bisi, B. V. Jackson, J. C. Mejía‐Ambriz, R. A. Fallows, Whitham D. Reeve, C. Monstein, Javier Bussons Gordo, Manuel Prieto Mateo   +10 more
wiley   +1 more source

A Universal Model for Solar Eruptions [PDF]

, 2017
Magnetically driven eruptions on the Sun, from stellar-scale coronal mass ejections1 to small-scale coronal X-ray and extreme-ultraviolet jets, have frequently been observed to involve the ejection of the highly stressed magnetic flux of a filament ...
Devore, C. Richard, Antiochos, Spiro K., Wyper, Peter F., C. Richard DeVore, Peter F. Wyper, Spiro K. Antiochos   +5 more
core   +1 more source

Coronal Magnetic Field Measurements along a Partially Erupting Filament in a Solar Flare [PDF]

, 2021
Magnetic flux ropes are the centerpiece of solar eruptions. Direct measurements for the magnetic field of flux ropes are crucial for understanding the triggering and energy release processes, yet they remain heretofore elusive.
Wei, Yuqian, Yu, Sijie, Gary, Dale E., Wang, Haimin, Chen, Bin, Jing, Ju   +5 more
core   +1 more source

Successive Coronal Jets as Novel Facilitators for Filament Oscillation and Eruption

The Astrophysical Journal Letters
Solar filament eruptions are central to coronal mass ejections and space weather, yet their triggering mechanisms remain a fundamental open question. In particular, the early stage that drives a magnetic flux rope toward instability and its observable ...
Chengrui Zhou, Chun Xia, Wentai Fu, Hechao Chen, Qiaoling Li   +4 more
doaj   +1 more source

Solar filament eruptions and energetic particle events

The Astrophysical Journal, 1986
The 1981 December 5 solar filament eruption that is associated with an energetic (E greater than 50 MeV) particle event observed at 1 AU. The eruption was photographed in H-alpha and was observed by the Solwind whitelight coronagraph on P78-1. It occurred well away from any solar active region and was not associated with an impulsive microwave burst ...
S. W. Kahler, E. W. Cliver, H. V. Cane, R. E. McGuire, R. G. Stone, N. R., Jr. Sheeley   +5 more
openaire   +1 more source

New Observations of Cosmic Noise Absorption in the South American Magnetic Anomaly (SAMA) Using a Next‐Generation Riometer

Space Weather, Volume 24, Issue 7, July 2026.
Abstract This study reports the first observations of cosmic noise power (CNP) and cosmic noise absorption (CNA) obtained with a next‐generation riometer installed at the Southern Space Observatory (SSO/INPE) in Brazil, located within the South American Magnetic Anomaly (SAMA).
J. Moro, E. Correia, C. M. Wrasse, J. R. Costa, J. V. Bageston, C. M. Denardini, A. J. Valcorte, L. C. A. Resende, A. M. Santos, L. A. da Silva, J. P. Marchezi, T. S. Trondsen   +11 more
wiley   +1 more source