There are a number of interesting aspects of the Sun’s internal and surface structure that can be seen in the observed properties of the Sun’s normal modes of oscillation. Two examples of these are the speed of sound and the internal rotation. There are other manifestations that are reported but not yet confirmed; or predicted but not yet observed. Examples here are the abundance of He in the convection zone and the detection of the internal gravity modes of oscillation. The current situation regarding both classes of works is discussed and exciting opportunities are indicated for the next generation of researchers. These opportunities are open to both space and ground‐level observing programs
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© 1992 American Institute of Physics.
1992
American Institute of Physics
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