A new assault on the 92 centimeter line of D I

Details A new assault on the 92 centimeter line of D I A new assault on the 92 centimeter line of D I

Feb 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987apj...313l..95b&link_type=abstract

Astrophysical Journal, Part 2 - Letters to the Editor (ISSN 0004-637X), vol. 313, Feb. 15, 1987, p. L95-L98.

Astronomy and Astrophysics

Astrophysics

17

Centimeter Waves, Deuterium, Interstellar Matter, Abundance, Line Spectra, Noise Spectra, Radio Spectra

Scientific paper

Results are reported from a search for the 92-cm line of D I in the ISM toward the Galactic anticenter, performed using the 25.9-m UC Berkeley telescope at Hat Creek during 1984-1986 and the 42.7-m NRAO telescope at Green Bank during 1984. The spectrum for single-channel-equivalent integration time 1.7 Msec is presented and shown to be consistent with detection of the line at 2-3 mK, corresponding to primordial and solar-vicinity D/H ratios of about 0.00005 and less than about 0.00002-0.00003, respectively. The possibility that the present detection is only apparent (considering the spectrum rms noise level of 1.6 mK) is examined, and the implications of a nondetection at this level for theoretical models are discussed.

Affiliated with

Also associated with

No associations

Rating

A new assault on the 92 centimeter line of D I 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 A new assault on the 92 centimeter line of D I, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A new assault on the 92 centimeter line of D I will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1011859