Time variable 21 CM lines in high galactic latitudes

Details Time variable 21 CM lines in high galactic latitudes Time variable 21 CM lines in high galactic latitudes

Mar 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980a%26as...39..337k&link_type=abstract

Astronomy and Astrophysics Supplement Series, vol. 39, Mar. 1980, p. 337-346.

Astronomy and Astrophysics

Astronomy

13

Centimeter Waves, Galactic Radiation, Radio Sources (Astronomy), Antenna Radiation Patterns, Emission Spectra, Hydrogen, Interstellar Gas, Line Spectra, Periodic Variations, Polar Regions, Radio Telescopes

Scientific paper

The paper presents 21 cm line profiles observed several times per year at 19 positions in high galactic latitudes with the 100 m telescope in Effelsberg. Most of the observed line profiles exhibit significant time variability. Kalberla et al. (1979) showed that this variability is caused by stray radiation from the antenna pattern. Here for each of the 19 positions the line profiles are given which result after the removal of stray radiation.

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