Center-to-limb variation of spectral lines and their effect on full-disk observations
arXiv:2311.06200 · doi:10.1017/S174392132300501X
Abstract
An accurate description of the center-to-limb variation (CLV) of stellar spectra is becoming an increasingly critical factor in both stellar and exoplanet characterization. In particular, the CLV of spectral lines is extremely challenging as its characterization requires highly detailed knowledge of the stellar physical conditions. To this end, we present the Numerical Empirical Sun-as-a-Star Integrator (NESSI) as a tool for translating high-resolution solar observations of a partial field of view into disk-integrated spectra that can be used to test common assumptions in stellar physics.
Conference proceeding for IAU Symposium 365: "Dynamics of Solar and Stellar Convection Zones and Atmospheres"