Results 21 to 30 of about 67,700 (324)
Detection of Jovian seismic waves: a new probe of its interior structure [PDF]
Knowledge of Jupiter's deep interior would provide unique constraints on the formation of the Solar System. Measurement of its core mass and global composition would shed light on whether the planet formed by accretion or by direct gravitational collapse.
Gaulme, Patrick +4 more
core +2 more sources
Motion magnification in coronal seismology [PDF]
We introduce a new method for the investigation of low-amplitude transverse oscillations of solar plasma non-uniformities, such as coronal loops, individual strands in coronal arcades, jets, prominence fibrils, polar plumes, and other contrast features ...
Anfinogentov, Sergey +1 more
core +2 more sources
Chromospheric seismology above sunspot umbrae [PDF]
The acoustic resonator is an important model for explaining the three-minute oscillations in the chromosphere above sunspot umbrae. The steep temperature gradients at the photosphere and transition region provide the cavity for the acoustic resonator ...
Arber +34 more
core +2 more sources
Exploring the links between Large Igneous Provinces and dramatic environmental impact
An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
wiley +1 more source
Torsional Alfvén waves: magneto-seismology in static and dynamic coronal plasmas [PDF]
Aims: We study the properties of torsional Alfvén waves in coronal loops so that they may be exploited for coronal seismological applications. Methods: The governing equation is obtained for standing torsional Alfvén waves of a dynamic, gravitationally
Andries +58 more
core +1 more source
Seismology of Altair with MOST [PDF]
Context. Altair is the fastest rotating star at less than 10 parsecs from the Sun. Its precise modelling is a landmark for our understanding of stellar evolution with fast rotation, and all observational constraints are most welcome to better determine the fundamental parameters of this star. Aims.
Diz��s, C��cile Le +4 more
openaire +5 more sources
An earthquake of small magnitude (ML3.5) occurred on 12 April 2020 near the east district boundary of NCT, Delhi with maximum PGA for the event observed to be 14.13 gals. A few smaller aftershocks also occurred in the area.
Ajeet P. Pandey +4 more
doaj +1 more source
Radio seismology of the outer solar corona [PDF]
Observed oscillations of coronal loops in EUV lines have been successfully used to estimate plasma parameters in the inner corona (< 0.2 R_0, where R_0 is the solar radius).
Brazhenko, A. I. +7 more
core +1 more source
International Photonics and OptoElectronics Meetings 2019, OFDA, 11/11/2019-14/11/2019, Wuhan, China. One of the greatest outstanding challenges in seismology is the sparsity of instrumentation across the Earth, particularly in the oceans. In this work we show that optical fiberbased distributed acoustic sensors (DAS) can represent a low-cost solution (
Gonzalez-Herraez, Miguel +9 more
openaire +2 more sources

