The Sun as a Star: 13 years of SoHO

TL;DR

This paper reviews 13 years of observations of the Sun as a star by the SoHO mission, highlighting key helioseismology results that have advanced understanding of the Sun's interior.

Contribution

It summarizes the significant findings from SoHO's helioseismology instruments, demonstrating how these results have shaped current models of the Sun's internal structure.

Findings

Insights into the Sun's internal structure and dynamics

Advancements in helioseismology techniques

Enhanced understanding of solar oscillations

Abstract

The best known Solar oscillation-like star is the Sun. During the last 14 years, the ESA/NASA Solar and Heliospheric Observatory (SoHO) has been continuously observing this star from the Lagrange point L1 with an enormous success. Among the 11 instruments placed onboard, 3 of them are dedicated to helioseismology: GOLF, VIRGO and MDI. The first two observe the Sun as a star by integrating the velocity or intensity signal of the visible solar disk into a single point. They are thus similar to any other observation done in asteroseismology. During this review I will present the most important results obtained during the mission concerning the Sun seen as a star and how this results have evolved our thoughts of the inside of our star.