Description
Context. Stellar flares has an impact on habitable planets. To study the flares by observations with no spatial resolution, Sun-as-a-star analyses are developed. With the data of Sun-as-a-star observations, a simulation of solar flares is required to provide a systemic clue to the Sun-as-a-star study.
Aims. We aim to develop a model of solar flares and study the relationship between the Sun-as-a-star spectrum with the flare class and location.
Methods. Using 1D radiative hydrodynamics flare model and multi-thread flare assumption, we obtain the spectrum of a typical flare with an enhancement of chromospheric lines.
Results. The preflare-subtracted spectrum of H