The role of nonclassical electron transport in the lower solar transition region

Abstract

view Abstract Citations (19) References (23) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS The Role of Nonclassical Electron Transport in the Lower Solar Transition Region Owocki, S. P. ; Canfield, R. C. Abstract One problem in solar physics is concerned with an understanding of the observed brightness of the quiet solar atmosphere in spectral lines which are formed in the lower solar transition region. The present paper has the objective to examine the possibility that the observed line emission results from nonclassical electron transport effects which are associated with the inherently steep temperature gradients in the solar transition region. The height variation of the electron temperature is parameterized to enable correspondence with a variety of one-dimensional constant pressure transition region models. The models include empirical models, theoretical models, and the constant classical heat fluxx model used by Shoub (1983). The electron velocity distribution function is considered along with the effect on collisional excitation and ionization rates, and effects on heat transport. Publication: The Astrophysical Journal Pub Date: January 1986 DOI: 10.1086/163816 Bibcode: 1986ApJ...300..420O Keywords: Chromosphere; Electron Acceleration; Line Spectra; Solar Atmosphere; Solar Spectra; Solar Temperature; Electron Distribution; Electron Energy; Heat Flux; Thermalization (Energy Absorption); Transport Theory; Solar Physics; LINE FORMATION; PARTICLE ACCELERATION; SUN: ATMOSPHERE; SUN: CHROMOSPHERE full text sources ADS |