helioseismology

(redirected from Helioseismic)
Also found in: Encyclopedia.

he·li·o·seis·mol·o·gy

 (hē′lē-ō-sīz-mŏl′ə-jē)
n.
The study of seismic waves propagating in the sun, inferred from variations in solar brightness.

he′li·o·seis′mo·log′i·cal (-mə-lŏj′ĭ-kəl) adj.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

helioseismology

the study of motions of the solar surf ace.
See also: Sun
-Ologies & -Isms. Copyright 2008 The Gale Group, Inc. All rights reserved.
Translations
Mentioned in ?
References in periodicals archive ?
We use data from the Atmospheric Imaging Assembly (AIA) of the Solar Dynamics Observatory (SDO), wavelengths 193 A, 211 A, 304 A, and 94 A, and magnetic-field data from the Helioseismic and Magnetic Imager (HMI).
Instead of tracking seismic waves, the new research probes the solar interior using the Helioseismic Magnetic Imager on NASA's Solar Dynamics Observatory, or SDO, which can map the dynamic magnetic fields that thread through and around the sun.
However, the internal structure of SSMs calibrated against the newly determined solar surface metallicity does not reproduce the helioseismic constraints; see, for example, [64].
For the purpose of this presentation, they are subdivided and reorganized into seven broad categories: 1) Planckian, 2) spectroscopic, 3) structural, 4) dynamic, 5) helioseismic, 6) elemental, and 7) earthly.
The above photograph of the sun was captured by the Helioseismic and Magnetic Imager (HMI), on 28 February, from Nasa's Solar Dynamics Observatory.
For example, Phil Scherrer (Stanford University), who runs SDO's Helioseismic Magnetic Imager, enthusiastically agreed to modify the usual observing program to optimize transit observations.
The Helioseismic and Magnetic Imager (HMI), designed in collaboration with Professor Philip Scherrer, HMI Principal Investigator, and other scientists at Stanford University, studies the origin of solar variability and attempts to characterize and understand the Sun's interior and magnetic activity.
Topics include deep meridional flows and their relation to dynamo models; surface magnetic effects on seismic inferences; latest asteroseismic results from space; recent numerical simulations of convection and magnetic fields; and helioseismic, asteroseismic, and other data in solar models.
"The idea is to observe all of the sun all of the time, so you can see what happened before an important event occurs," says Philip Scherrer of Stanford University, lead scientist on the observatory's helioseismic and magnetic imager.
The SDO has three state-of-the-art scientific instruments, the Helioseismic and Magnetic Imager, which will look into the Sun and map the magnetic field and the plasma flows that generate it.