Results 41 to 50 of about 1,264 (214)
Global‐Scale Full‐Waveform Ambient Noise Inversion
Journal of Geophysical Research: Solid Earth, Volume 125, Issue 4, April 2020., 2020 Abstract We present the first application of full‐waveform ambient noise inversion to observed correlation functions that jointly constrains 3‐D Earth structure and heterogeneous noise sources. For this, we model and interpret ambient noise correlations as recordings of correlation wavefields, which completely eliminates the limiting assumptions of ...
Korbinian Sager +4 more
wiley +1 more source
, 1988 Many of the oscillations observed at the solar surface have been identified with resonant normal modes of the entire solar body. Accurate measurements of frequencies' of these modes enable us to study the internal structure and dynamics of the Sun ...
Antia, H. M.
core +2 more sources
Living Reviews in Solar Physics, 2016 The seismic study of the Sun and other stars offers a unique window into the interior of these stars. Thanks to helioseismology, we know the structure of the Sun to admirable precision. In fact, our knowledge is good enough to use the Sun as a laboratory.
Sarbani Basu
doaj +1 more source
Photospheric high-frequency acoustic power excess in sunspot umbra: signature of magneto-acoustic modes [PDF]
, 2013 We present observational evidence for the presence of MHD (magnetohydrodynamic) waves in the solar photosphere deduced from SOHO/MDI (Solar and Heliospheric Observatory/Michelson Doppler Imager) Dopplergram velocity observations.
Shelyag, S. +14 more
core +1 more source
A Spectral Solver for Solar Inertial Waves
The Astrophysical Journal Supplement Series, 2023 Inertial waves, which are predominantly driven by the Coriolis force, likely play an important role in solar dynamics, and, additionally, they provide a window into the solar subsurface.
Jishnu Bhattacharya, Shravan M. Hanasoge
doaj +1 more source
Inversions of Stellar Structure From Asteroseismic Data
Frontiers in Astronomy and Space Sciences, 2022 The advent of space-based photometry missions in the early 21st century enabled the application to asteroseismic data of advanced inference techniques until then restricted to the field of helioseismology.
Gaël Buldgen +6 more
doaj +1 more source
Helioseismology, Asteroseismology, and MHD Connections [PDF]
, 2008 This volume presents a timely snapshot of the state of helio- and asteroseismology in the era when the SOHO/MDI instrument is about to be replaced by SDO/HMI and the CoRoT space mission is yielding its first long-duration light curves of thousands of ...
Gizon, Laurent +5 more
core +1 more source
One-sided arc averaging geometries in time–distance local helioseismology [PDF]
, 2021 Context. The study of solar oscillations (helioseismology) has been a very successful method of researching the Sun. Helioseismology teaches us about the structure and mean properties of the Sun.
Michal Švanda +5 more
core +1 more source
Ryugu reference project: Recommendations from the measurement definition team
Meteoritics &Planetary Science, Volume 61, Issue 5, Page 819-848, May 2026.Abstract Sample return missions play a significant role in planetary science by providing pristine extraterrestrial materials. JAXA's Hayabusa2 and NASA's OSIRIS‐REx missions have returned samples from the C‐type asteroids Ryugu and Bennu, respectively. The chemical and mineralogical compositions of these samples closely resemble those of CI chondrites,
Tetsuya Yokoyama +16 more
wiley +1 more source
Application of Fano profiles to asymmetric resonances in helioseismology [PDF]
, 2001 Parallels are drawn between the asymmetric resonance profiles observed in global helioseismology and the Fano theory for autoionisation profiles in atomic spectroscopy.
P. Boumier +3 more
core +1 more source