Structure and spectrum of quiescent prominences: energy balance and hydrogen spectrum

Journal Article · Thu Apr 01 04:00:00 EST 1976 · Astrophys. J.; (United States)

DOI:https://doi.org/10.1086/154273· OSTI ID:7272738

Heasley, J N; Mihalas, D

In this paper we present theoretical models of quiescent prominences which satisfy the constraints of radiative, magnetohydrostatic, and statistical equilibrium. We obtain reasonable models only if we assume that the exciting ultraviolet radiation field can penetrate diffusely into the slab, or that there is a source of nonradiative energy input. The computed temperatures in our models are in good agreement with observational estimates. The models reproduce most observed features of these objects quite well, and should provide a good starting point to study further the formation of prominence spectra and the effects of nonradiative energy inputs. (AIP)

• Research Organization: High Altitude Observatory, National Center for Atmospheric Research
• OSTI ID: 7272738
• Journal Information: Astrophys. J.; (United States), Journal Name: Astrophys. J.; (United States) Vol. 205:1; ISSN ASJOA
• Country of Publication: United States
• Language: English

Related Subjects

640104* -- Astrophysics & Cosmology-- Solar Phenomena
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ATMOSPHERES
CHROMOSPHERE
CRYOGENIC FLUIDS
ELECTROMAGNETIC RADIATION
ELEMENTS
ENERGY TRANSFER
ENERGY-LEVEL TRANSITIONS
EXCITATION
FLUID MECHANICS
FLUIDS
HEAT TRANSFER
HYDRODYNAMICS
HYDROGEN
MAGNETOHYDRODYNAMICS
MECHANICS
NONMETALS
RADIANT HEAT TRANSFER
RADIATIONS
SOLAR ACTIVITY
SOLAR ATMOSPHERE
SOLAR CORONA
SOLAR PROMINENCES
SPECTRA
ULTRAVIOLET RADIATION