Radio Astronomical Detection of Helium

Details Radio Astronomical Detection of Helium Radio Astronomical Detection of Helium

Jul 1966

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1966natur.211..174l&link_type=abstract

Nature, Volume 211, Issue 5045, pp. 174-175 (1966).

Physics

15

Scientific paper

WE report the detection of three radio lines arising from transitions between highly excited states of neutral helium (4He). The observations were made with the 60-ft. telescope of Harvard University during the months February-April 1966. The observed helium lines result from transitions of the n + 1 --> n type between states 160 and 159, 159 and 158, and 157 and 156. Conforming to the notation suggested in our recent work1 on excited hydrogen, we shall call these transitions `He 156α', `He 158α' and `He 159α', respectively. Their respective rest frequencies are 1716.372 Mc/s, 1652.214 Mc/s and 1621.332 Mc/s. (Adopting a more recent value of the Rydberg constant R∞ (ref. 2), the rest frequencies of the lines reported in our previous reports (refs. 1, 3) are slightly modified. The frequencies for H 156α, H 158α and H 166α are 1715.673 Mc/s, 1651.541 Mc/s and 1424.734 Mc/s, respectively.)

Affiliated with

Also associated with

No associations

Rating

Radio Astronomical Detection of Helium 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 Radio Astronomical Detection of Helium, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Radio Astronomical Detection of Helium will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-838008