Statistical comparison of the observed and synthetic hydrogen Lyman line profiles in solar prominences

Aims. We analyse a unique set of prominence SOHO/SUMER Lyman spectra by comparing it with synthetic spectra obtained by 2D multi-thread prominence fine-structure models. Methods. We employed a novel statistical approach to the analysis of the observed and synthetic Lyman spectra. We compared the sta...

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Bibliographic Details
Published in:Astronomy and astrophysics (Berlin) 2010-05, Vol.514, p.A43
Main Authors: Gunár, S., Schwartz, P., Schmieder, B., Heinzel, P., Anzer, U.
Format: Article
Language:English
Subjects:
Astronomy
Astrophysics
Earth, ocean, space
Exact sciences and technology
line: profiles
Physics
prominences
radiative transfer
Sciences of the Universe
Sun: filaments
techniques: spectroscopic
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Summary:Aims. We analyse a unique set of prominence SOHO/SUMER Lyman spectra by comparing it with synthetic spectra obtained by 2D multi-thread prominence fine-structure models. Methods. We employed a novel statistical approach to the analysis of the observed and synthetic Lyman spectra. We compared the statistical distributions of the line properties of the observed and synthetic Lyman spectra using a set of four statistical criteria. Results. We demonstrate the very good agreement between the observed Lyman spectra and synthetic spectra obtained by modelling. Conclusions. Our set of statistical criteria is well-suited to analyses of the prominence Lyman spectra because of its sensitivity to a number of different parameters governing the conditions in the prominence fine structures.
ISSN:0004-6361
1432-0746
1432-0756
DOI:10.1051/0004-6361/200913411