Results 101 to 110 of about 1,260 (214)

Editorial: The Future of Asteroseismology

Frontiers in Astronomy and Space Sciences, 2021
Joyce Ann Guzik, Markus Roth
doaj   +1 more source

Stray Light Correction for the Helioseismic and Magnetic Imager

The Astrophysical Journal Supplement Series
We report a point-spread function (PSF) and deconvolution procedure to remove stray light from the Helioseismic and Magnetic Imager (HMI) data. Prelaunch calibration observations, postlaunch Venus transit, and lunar transit data were used to develop the ...
A. A. Norton, T. L. Duvall Jr., J. Schou, R. S. Bogart, Junwei Zhao, M. C. Rabello-Soares, P. J. Levens, J. T. Hoeksema, C. S. Baldner   +8 more
doaj   +1 more source

Investigating the role of opacity in reconciling the Standard Solar Model and Helioseismology [PDF]

, 2023
openOver the last 20 years, advances in determining the chemical composition of the Sun have adversely affected the agreement between Standard Solar Models (SSMs) and helioseismology, to the point where SSMs can no longer be made to agree with ...
MANTOVANI, DANIELE
core  

Dynamics of Large-Scale Solar Flows. [PDF]

Space Sci Rev, 2023
Hotta H, Bekki Y, Gizon L, Noraz Q, Rast M.   +4 more
europepmc   +1 more source

Global-scale consequences of magnetic-helicity injection and condensation on the sun

, 2014
In the recent paper of Antiochos, a new concept for the injection of magnetic helicity into the solar corona by small-scale convective motions and its condensation onto polarity inversion lines (PILs) was been developed.
DeVore, Rick, Antiochos, Spiro, Mackay, Duncan Hendry   +2 more
core   +1 more source

Helioseismology in the 1980s and 1990s [PDF]

Proceedings of the International Astronomical Union, 2013
AbstractOver more than twenty years, Wojtek Dziembowski and I collaborated on nearly fifty papers, which were concentrated in helioseismology through the 1980s and 1990s, but extended early into the new century. In this review, I discuss the most significant results of this collaboration and some of the underlying sociology that contributed to the ...
openaire   +1 more source

A Linear Model for Inertial Modes in a Differentially Rotating Sun

The Astrophysical Journal
Inertial wave modes in the Sun are of interest owing to their potential to reveal new insight into the solar interior. These predominantly retrograde-propagating modes in the solar subsurface appear to deviate from the thin-shell Rossby–Haurwitz model at
Jishnu Bhattacharya, Chris S. Hanson, Shravan M. Hanasoge, Katepalli R. Sreenivasan   +3 more
doaj   +1 more source

Predicting Solar Magnetic Activity from Sph and Seismic Parameters Using Random Forest Regression

The Astrophysical Journal
We investigate the potential of using the photometric magnetic proxy S _ph and seismic parameters, such as the frequency of maximum power ( ${\nu }_{{\rm{\max }}}$ ) and the large frequency separation (Δ ν ), derived from Solar and Heliospheric ...
Ki-Beom Kim, Heon-Young Chang
doaj   +1 more source

Resolving the Tachocline Using Inversion of Rotational Splitting Derived from Fitting Very Long and Long Time Series

The Astrophysical Journal
We use rotation splittings derived from very long and long time series, namely 25.2, 12.6, and 6.3 yr long, computed by S. G. Korzennik independent methodology to characterize the solar tachocline and its variation with latitude and time.
Sylvain G. Korzennik, Antonio Eff-Darwich   +1 more
doaj   +1 more source

Helioseismology – from oscillations toward the internal structure

, 2009
Solar oscillations make it possible to construct a detailed model od the Sun and to map details of the solar interior.
Švanda, Michal
core