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Science and Technology - General Knowledge Questions
Study of the sun is called
A)
Seismography
B)
Coronagraphy
C)
Helioseismology
D)
Heliography

Correct Answer :   Helioseismology

Helioseismology is the study of the solar interior using observations of waves on the Sun's surface. Helioseismology, a term coined by Douglas Gough, is the study of the structure and dynamics of the Sun through its oscillations. These are principally caused by sound waves that are continuously driven and damped by convection near the Sun's surface. It is similar to geoseismology, or asteroseismology (also coined by Gough), which are respectively the studies of the Earth or stars through their oscillations. While the Sun's oscillations were first detected in the early 1960s, it was only in the mid-1970s that it was realized that the oscillations propagated throughout the Sun and could allow scientists to study the Sun's deep interior.

The modern field is separated into global helioseismology, which studies the Sun's resonant modes directly, and local helioseismology, which studies the propagation of the component waves near the Sun's surface.

Published On : June 14, 2021
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