We investigate the velocity field of the solar chromosphere at the location of 65 He i 10830 dark points (DP's). We have obtained spectra of such points in the vicinity of the Ca II K line. As a measure of differential chromospheric velocity, we use the shift of the K line center relative to a nearby photospheric Fe i line. We find that in He i DP's, the distribution of K line shifts is skewed towards the blue: the blueward skewing is more pronounced in He i DP's located in coronal holes. To the extent that He i DP's are proxies of coronal bright points, our study is relevant to previous reports of outflows from such bright points. © 1986 D. Reidel Publishing Company.
CITATION STYLE
Holt, R. D., & Mullan, D. J. (1986). Shifts of the Ca ii K line in He i 10830 dark points. Solar Physics, 107(1), 63–72. https://doi.org/10.1007/BF00155342
Mendeley helps you to discover research relevant for your work.