Determination of the He(+)/H(+) ratio from alpha, beta, and gamma radio recombination lines

Details Determination of the He(+)/H(+) ratio from alpha, beta, and gamma radio recombination lines Determination of the He(+)/H(+) ratio from alpha, beta, and gamma radio recombination lines

Aug 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992apj...395..484p&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 395, no. 2, Aug. 20, 1992, p. 484-487.

Astronomy and Astrophysics

Astronomy

21

Galactic Evolution, H Ii Regions, Interstellar Matter, Milky Way Galaxy, Radio Astronomy, Signal To Noise Ratios, Helium Ions, Hydrogen Ions, Lyman Alpha Radiation, Radio Telescopes

Scientific paper

We report high signal-to-noise ratio observations of the 91 alpha, 114 beta, and 130 gamma hydrogen and helium radio recombination lines toward several Galactic H II regions. These observations were used to determine the ionized helium-to-ionized hydrogen abundance ratio by number, y(+). Since the observations were made with the same radio telescope at approximately the same frequency, we consider them to be practically free of beamwidth and frequency effects. For a given source, we find y(+) values consistent within error for the different n values measured.

Affiliated with

Also associated with

No associations

Rating

Determination of the He(+)/H(+) ratio from alpha, beta, and gamma radio recombination lines 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 Determination of the He(+)/H(+) ratio from alpha, beta, and gamma radio recombination lines, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Determination of the He(+)/H(+) ratio from alpha, beta, and gamma radio recombination lines will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1165854