title: TWENTY-FIVE YEARS OF HELIOSEISMOLOGY RESEARCH IN UZBEKISTAN
abstract: The Ulugh Beg Astronomical Institute was involved in the IRIS helioseismology project from the mid-1980s through to the end of the project in 2001. This project aimed to study the deep interior of the Sun using Doppler spectral line shift measurements integrated over the whole solar disk. In order to obtain long, continuous observational data showing periodicity a network of six stations more or less regularly distributed around the globe and equipped with identical spectrophotometers was deploy
journal: Journal of Astronomical History and Heritage