Results 11 to 20 of about 414,079 (344)

A fundamental mechanism of solar eruption initiation [PDF]

Nature Astronomy, 2021
Solar eruptions are spectacular magnetic explosions in the Sun’s corona, and how they are initiated remains unclear. Prevailing theories often rely on special magnetic topologies that may not generally exist in the pre-eruption source region of corona ...
Chaowei Jiang, Xueshang Feng, Rui Liu, Xiaoli Yan, Q. Hu, R. Moore, A. Duan, J. Cui, P. Zuo, Yi Wang, F. Wei   +10 more
semanticscholar   +1 more source

Atmospheric waves and global seismoacoustic observations of the January 2022 Hunga eruption, Tonga

Science, 2022
The 15 January 2022 climactic eruption of Hunga volcano, Tonga, produced an explosion in the atmosphere of a size that has not been documented in the modern geophysical record.
R. Matoza, D. Fee, J. Assink, A. Iezzi, D. N. Green, Keehoon Kim, L. Toney, T. Lecocq, S. Krishnamoorthy, J. Lalande, Kiwamu Nishida, K. Gee, M. Haney, H. Ortiz, Q. Brissaud, L. Martire, L. Rolland, P. Vergados, A. Nippress, Junghyun Park, S. Shani-Kadmiel, Alex J. C. Witsil, S. Arrowsmith, C. Caudron, S. Watada, A. Perttu, B. Taisne, P. Mialle, A. Le Pichon, J. Vergoz, P. Hupe, P. Blom, R. Waxler, S. De Angelis, J. Snively, A. Ringler, R. Anthony, A. Jolly, G. Kilgour, G. Averbuch, M. Ripepe, M. Ichihara, A. Arciniega‐Ceballos, E. Astafyeva, L. Ceranna, S. Cevuard, I. Che, R. De Negri, Carl Ebeling, L. Evers, L. Franco-Marin, T. Gabrielson, Katrin Hafner, R. Harrison, A. Komjáthy, G. Lacanna, J. Lyons, K. Macpherson, E. Marchetti, Kathleen F. McKee, R. Mellors, G. Mendo-Pérez, T. Mikesell, E. Munaibari, Mayra I. Oyola-Merced, Iseul Park, C. Pilger, C. Ramos, Mario C. Ruiz, R. Sabatini, H. Schwaiger, Dorianne Tailpied, C. Talmadge, J. Vidot, Jeremy Webster, D. Wilson   +75 more
semanticscholar   +1 more source

Global Propagation of Ionospheric Disturbances Associated With the 2022 Tonga Volcanic Eruption

Geophysical Research Letters, 2022
In this study, we use measurements from over 4,735 globally distributed Global Navigation Satellite System receivers to track the progression of traveling ionospheric disturbances (TIDs) associated with the 15 January 2022 Hunga Tonga‐Hunga Ha'apai ...
D. Themens, C. Watson, N. Žagar, S. Vasylkevych, S. Elvidge, A. McCaffrey, P. Prikryl, Benjamin Reid, A. Wood, P. Jayachandran   +9 more
semanticscholar   +1 more source

The January 2022 eruption of Hunga Tonga-Hunga Ha’apai volcano reached the mesosphere

Science, 2022
Explosive volcanic eruptions can loft ash, gases, and water into the stratosphere, which affects both human activities and the climate. Using geostationary satellite images of the 15 January 2022 eruption of the Hunga Tonga-Hunga Ha’apai volcano, we find
S. Proud, A. Prata, Simeon Schmauß
semanticscholar   +1 more source

The 2021 eruption of the Cumbre Vieja volcanic ridge on La Palma, Canary Islands

Geology Today, 2022
Almost exactly half a century after the eruption of the Teneguía Volcano on La Palma (26 October to 28 November 1971), a new eruption occurred on the island and lasted for 85 days from 19 September until 13 December 2021.
J. Carracedo, V. Troll, J. Day, H. Geiger, M. Aulinas, V. Soler, F. Deegan, F. Perez‐Torrado, G. Gisbert, E. Gazel, A. Rodríguez-González, H. Albert   +11 more
semanticscholar   +1 more source

The unexpected radiative impact of the Hunga Tonga eruption of 15th January 2022

Communications Earth & Environment, 2022
The underwater Hunga Tonga-Hunga Ha-apai volcano erupted in the early hours of 15th January 2022, and injected volcanic gases and aerosols to over 50 km altitude.
P. Sellitto, A. Podglajen, R. Belhadji, M. Boichu, E. Carboni, J. Cuesta, C. Duchamp, C. Kloss, R. Siddans, N. Bègue, L. Blarel, F. Jégou, S. Khaykin, J. Renard, B. Legras   +14 more
semanticscholar   +1 more source

Urticarial eruption in COVID‐19 infection

Journal of the European Academy of Dermatology and Venereology, 2020
Coronavirus disease (COVID-19) is spreading quickly across the world, until a pandemic condition was announced by the WHO on March. Many clinical manifestations of this virus are described and new symptoms are emerging particularly outside respiratory ...
D. Henry, M. Ackerman, E. Sancelme, A. Finon, É. Estève   +4 more
semanticscholar   +1 more source

The Behavior of Novae Light Curves Before Eruption [PDF]

, 2009
In 1975, E. R. Robinson conducted the hallmark study of the behavior of classical nova light curves before eruption, and this work has now become part of the standard knowledge of novae.
Alcock, Alcock, Alksne, Anderson, Andrew C. Collazzi, Anonymous, Apriamashvili, Arne A. Henden, Ashley Pagnotta, Becker, Beer, Bertaud, Bertiau, Beyer, Bradley E. Schaefer, Bruch, Bruch, Campbell, Campbell, Dinnerstein, Downes, Efremov, Fehrenbach, Fekel, Gessner, Götz, Hassel, Herbig, Hinderer, Hoffleit, Hoffmeister, Honeycutt, Hopp, Kafka, Kałużny, King, Klaus Löchel, Knigge, Kukarkin, Kukarkin, Kürster, Leavitt, Leibowitz, Liller, Liller, Limin Xiao, Lowne, Löchel, Meinunger, Mennickent, Monet, Newsom, Nielsen, Osada, Parenago, Parenago, Peltier, Peltier, Peter Kroll, Pickering, Pickering, Pogson, Prentice, Retter, Rosino, Samus, Sanduleak, Schaefer, Schaefer, Schaefer, Schaefer, Schaefer, Schaefer, Schaefer, Schweitzer, Semeniuk, Shafter, Shafter, Shapley, Shen, Sherrington, Shugarov, Solomon, Starrfield, Tamm, Thomas, Uthas, van Genderen, van Schewick, van Teeseling, Wachmann, Wade, Warner, Warner, Warner, Warner, Wenzel, Whipple, Whipple, Whipple, Xiao, Yonehara   +101 more
core   +3 more sources

Prominence Eruptions [PDF]

International Astronomical Union Colloquium, 1998
AbstractThe kinematics and dynamics of prominence eruptions are reviewed and different phases of the eruption are identified. The properties of the equation of motion in these phases are shown. The morphology of the prominence prior and during the eruption is described and the implications to the MHD description of the process are discussed.
openaire   +3 more sources

Shear Velocity Evidence of Upper Crustal Magma Storage Beneath Valles Caldera

Geophysical Research Letters, 2023
Valles Caldera was formed by large rhyolitic eruptions at ∼1.6 and 1.23 Ma and it hosts post‐caldera rhyolitic deposits as young as ∼69 ka, but the contemporary state of the magmatic system is unclear.
Justin Wilgus, Brandon Schmandt, Ross Maguire, Chengxin Jiang, Julien Chaput   +4 more
doaj   +1 more source