Forward Models of Coronal Nonthermal Line-Widths

Abstract:

Spectral lines observed from optically-thin sources can be difficult to interpret. Forward models are an excellent tool for understanding the connection between line of sight plasma conditions and integrated observations. We use our GHOSTS model to generate ensembles of realistic spectral lines from the Sun's corona. In particular we focus on the effect of (1) polar-plume-like structures along the line of sight, (2) the presence of outwardly propagating Alfv\'en waves, and (3) changing the integration time of the observations. The simulated observables are also compared to real observations, such as those from Hinode/EIS, SUMER/SOHO, and CoMP.