Abstract
view Abstract Citations (48) References (16) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Nonequilibrium ionization in solar and stellar winds. Dupree, A. K. ; Moore, R. T. ; Shapiro, P. R. Abstract Substantial and systematic departures from ionization equilibrium can occur in the solar transition region and corona when mass outflows are present. Modeling calculations illustrate the general characteristics of the ionization balance in such regions. The presence of nonequilibrium conditions suggests a natural explanation for the extended region of EUV line emission that is observed above the solar limb. Comparison with observations of a coronal hole on the disk indicates that outflow may not start until temperatures of about 250,000 K are reached. Additional consequences include a diminution of the density discrepancy between ultraviolet and radio observations of coronal holes, and potential effects on the energy balance in solar and stellar atmospheres undergoing mass loss. Publication: The Astrophysical Journal Pub Date: April 1979 DOI: 10.1086/182938 Bibcode: 1979ApJ...229L.101D Keywords: Nonequilibrium Ionization; Solar Wind; Stellar Winds; Ultraviolet Astronomy; Coronal Holes; Emission Spectra; Far Ultraviolet Radiation; Radio Emission; Stellar Mass Ejection; Ultraviolet Spectra; Astrophysics; Ionization:Stellar Winds; Solar Wind full text sources ADS |
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
