Statistics – Computation
Scientific paper
Jan 1986
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986a%26a...154..154g&link_type=abstract
Astronomy and Astrophysics (ISSN 0004-6361), vol. 154, no. 1-2, Jan. 1986, p. 154-170.
Statistics
Computation
13
Coronal Loops, Lyman Alpha Radiation, Solar Corona, Solar Radiation, Computational Astrophysics, Filtergrams, Monte Carlo Method, Optical Thickness, Slabs, Solar Spectra
Scientific paper
The processes of emission of Lyman-alpha radiation by loop-like structures embedded in the solar corona are investigated, for a large range of physical conditions within these objects. The coupled set of equations for radiative transfer, and hydrogen atom level populations, ionization and pressure equilibria is solved to obtain the emitted L-alpha intensities as functions of pressure, temperature and size. Three different cases are treated: (1) optically thin structures with arbitrary geometry. (2) plane-parallel slabs, either horizontal or vertical, with arbitrary optical depth. (3) cylindrical loops with horizontal axis, for moderate optical depths (au is less than 1000). The importance of geometry, as well as that of partial frequency redistribution and of the hydrogen atom's model, are evaluated. Empirical formulae and diagrams of intensity as a function of physical state parameters are given. The diagnostic possibilities of Lyman-alpha filtergrams alone or in conjunction with other observations, are discussed.
Gouttebroze Pierre
Tsiropoula Georgia
Vial Jean-Claude
No associations
LandOfFree
Emission of Lyman alpha radiation by solar coronal loops. I - General synopsis does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Emission of Lyman alpha radiation by solar coronal loops. I - General synopsis, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Emission of Lyman alpha radiation by solar coronal loops. I - General synopsis will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1843690