A study of H I absorption using Karhunen-Loeve series

Details A study of H I absorption using Karhunen-Loeve series A study of H I absorption using Karhunen-Loeve series

May 1975

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1975a%26a....40..285p&link_type=abstract

Astronomy and Astrophysics, vol. 40, no. 3, May 1975, p. 285-290.

Astronomy and Astrophysics

Astronomy

1

Absorption Spectra, Hydrogen Atoms, Karhunen-Loeve Expansion, Line Spectra, Radio Sources (Astronomy), Astronomical Maps, Astronomical Models, Eigenvalues, Galactic Radiation, Statistical Analysis

Scientific paper

The absorption spectrum of the radio source G 1.1-0.1 is studied by expanding spectra of a drift-scan on the source through a Karhunen-Loeve series. It is shown that this method allows the absorption lines to be separated and the original blended lines to be identified. It is also shown that a better estimate of a source's distance can be obtained for a given galactic model. This method is illustrated by reconstructing the absorption spectrum of G 1.1-0.1.

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