Results 11 to 20 of about 2,706,829 (276)
Diagnostics of active and eruptive prominences through hydrogen and helium lines modelling [PDF]
, 2008 In this study we show how hydrogen and helium lines modelling can be used to make a diagnostic of active and eruptive prominences. One motivation for this work is to identify the physical conditions during prominence activation and eruption. Hydrogen and
Labrosse, N. +2 more
core +10 more sources
Automatic Classification of eruptive events by the VAMOS system
, 1999 An automatic system named VAMOS (Volcanic Activity MOnitoring System) for monitoring volcanic activity at Mt. Etna and Stromboli volcanoes, is at the present under test at the data collection center at IIV (Istituto Internazionale di Vulcanologia, CNR, Catania).
Bertucco, L. +5 more
core +4 more sources
The Nonaxisymmetric Behaviour Of Solar Eruptive Events [PDF]
, 2019 This thesis investigates new approaches for predicting the occurrence of solar eruptive events based on coronal mass ejection (CME), solar flare and sunspot group observations.
Gyenge, Norbert Gyula
core +6 more sources
Tidal disruption events and quasi‐periodic eruptions
Astronomische Nachrichten, 2023 Tidal disruption events (TDEs) occur when a star passes close to a massive black hole so that the tidal forces of the black hole exceed the binding energy of a star and cause it to be ripped apart. Part of the matter will fall onto the black hole, causing a strong increase in luminosity.
Webb, Natalie A. +6 more
openaire +3 more sources
A Study of Preflare Solar Coronal Magnetic Fields: Magnetic Energy and Helicity
The Astrophysical Journal, 2023 Solar flares fall into two types, with eruptive ones associated with coronal mass ejection (CME) and confined ones without CME. To explore whether there are preflare conditions in terms of magnetic energy and helicity that can effectively determine the ...
Aiying Duan +2 more
doaj +1 more source
Scientific Reports, 2023 The most frequent volcanic eruptions are of low-intensity and small magnitude. They produce abundant ash-sized (
Simone Costa +6 more
doaj +1 more source
Changes of Magnetic Energy and Helicity in Solar Active Regions from Major Flares
The Astrophysical Journal, 2023 Magnetic free energy powers solar flares and coronal mass ejections, and the buildup of magnetic helicity might play a role in the development of unstable structures that subsequently erupt.
Yang Liu +7 more
doaj +1 more source
Magma Transfer at Campi Flegrei Caldera (Italy) After the 1538 AD Eruption
Geophysical Research Letters, 2023 Shallow magma transfer is difficult to detect at poorly monitored volcanoes. Magma transfer before the last 1538 eruption at Campi Flegrei caldera (Italy) was exceptionally tracked using historical, archeological, and geological data.
Elisa Trasatti +5 more
doaj +1 more source
Synoptic solar observations of the Solar Flare Telescope focusing on space weather
Journal of Space Weather and Space Climate, 2020 The solar group at the National Astronomical Observatory of Japan is conducting synoptic solar observation with the Solar Flare Telescope. While it is a part of a long-term solar monitoring, contributing to the study of solar dynamo governing solar ...
Hanaoka Yoichiro +4 more
doaj +1 more source
Next-Generation Comprehensive Data-Driven Models of Solar Eruptive Events [PDF]
, 2023 Solar flares and coronal mass ejections are interrelated phenomena that together are known as solar eruptive events. These are the main drivers of space weather and understanding their origins is a primary goal of Heliophysics.
Glesener, Lindsay +13 more
core +1 more source