However, these solutions were rendered untenable by advances in helioseismology, the study of how waves propagate through the sun. Based on such observations, it became possible to measure the interior temperatures of the sun; these agreed with the standard solar models.
However, these solutions were rendered untenable by advances in helioseismology Based on such observations, it became possible to measure the interior temperatures of the sun. Helioseismology was the study of how waves propagate through the sun. These agreed with the standard solar models.