title: Solar X-Ray Spectrum below 25 Angstroms.
abstract: Below 25 A, the solar spectrum consists primarily of the emission lines of Fe XVII, O VIII, O VII, and N VII. The lines of the more highly ionized atoms, Fe XVII and O VIII, originate in localized active regions. Lines of O VII and N VII emanate from the full disk.
authors.forename: R L
authors.initials: RL
authors.lastname: Blake
authors.forename: T A
authors.initials: TA
authors.lastname: Chubb
authors.forename: H
authors.initials: H
authors.lastname: Friedman
authors.forename: A E
authors.initials: AE
authors.lastname: Unzicker