Helioseismology 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.

2025年1月14日 · Helioseismologists can use the properties of these waves to determine the temperature, density, composition, and motion of the interior of the sun. A number of fascinating discoveries have been made in the last few years using the science of helioseismology.

Helioseismology is analogous to geoseismology, where seismic waves traveling through the Earth’s interior reveal what is below the surface; similarly, in helioseismology the waves propagating inside the Sun’s interior tell us about the hidden layers.

"Helioseismology utilizes waves that propagate throughout the Sun to measure the invisible internal structure and dynamics of a star." This overview gives a summary of what helioseismology is and how it is done. By Dave Armet (GONG) A review in Nature of Jack Zirker's excellent book "Sunquakes: Probing the Interior of the Sun."

2009年2月19日 · Temperature, composition, and motions deep in the Sun influence the oscillation periods and yield insights into conditions in the solar interior. The primary physics in both seismology and helioseismology are wave motions that are excited in the body's (Earth or Sun) interior and that propagate through a medium.

1996年5月31日 · Helioseismology is the study of the interior of the Sun from observations of the vibrations of its surface. The Sun is nearly opaque to electromagnetic energy: it takes about 170,000 years for radiation to get to the surface from the core. On the other hand, the Sun is essentially transparent to neutrinos, and to acoustic waves.

2016年8月8日 · I focus on results obtained with global helioseismology, i.e., the study of the Sun using its normal modes of oscillation. I also briefly touch upon asteroseismology, the seismic study of stars other than the Sun, and discuss how seismic data of others stars are interpreted.

Despite their shortcomings, models of the Sun are extremely successful and triumphs of 20th century solar physics and astrophysics. How can we test and improve the SSM? Small amplitude/low frequency oscillations detected at the surface …

2004年8月1日 · Helioseismology is the study of the solar interior using observations of waves on the Sun's surface. It has done much to improve our understanding of the interior of the Sun, testing the physical inputs used to model stellar interiors and providing a detailed map of the Sun's structure and internal rotation.

solar activity waxes and wanes. The seismic study of stars other than the Sun is a fairly new endeavour, but we are making great strides in this field. In this review I discuss some of the techniques used in helioseismic analyses and the results obtained using those techniques. I focus on results obtained with global helioseismology, i.e.,