Recombination line observations of the Galactic center - The arc-like source

Details Recombination line observations of the Galactic center - The arc-like source Recombination line observations of the Galactic center - The arc-like source

May 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980a%26a....85...26p&link_type=abstract

Astronomy and Astrophysics, vol. 85, no. 1-2, May 1980, p. 26-28.

Astronomy and Astrophysics

Astrophysics

31

Galactic Nuclei, Galactic Radiation, H Lines, Hydrogen Recombinations, Milky Way Galaxy, Radiation Distribution, Contours, Emission Spectra, Forbidden Bands, Photomapping, Spectral Energy Distribution, Spectroscopic Telescopes

Scientific paper

The paper discusses the mapping of the hydrogen radio recombination line from the arc-like Galactic center source using a 100-m telescope at 5 GHz. Contour maps of integrated line intensity show that the dominant emission occurs around V(LSR) of approximately -40 km/s, although there is some emission at positive velocities which extends beyond l equals 0.02 deg. No emission was detected from He(+) at the position of the strongest H(+) line, implying that y(+) equals forbidden He(+)/forbidden H(+) is lower than 0.03.

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