Observation of the 312-313 transition of interstellar formaldehyde

Details Observation of the 312-313 transition of interstellar formaldehyde Observation of the 312-313 transition of interstellar formaldehyde

Sep 1974

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1974natur.251..123m&link_type=abstract

Nature, Volume 251, Issue 5471, pp. 123-124 (1974).

Physics

2

Scientific paper

ALTHOUGH several transitions of formaldehyde have been observed in interstellar space1-7, there has been only one prior report of an observation of the 312-313 transition3. An energy level diagram of the lower rotational levels indicating the transitions that have been detected is given in Fig. 1. The ΔJ=1 transitions are seen in emission. The ΔJ=0 transitions are seen in absorption and emission7-9 with a trend for the higher J transitions to be seen in emission (additional confirmation of this is provided by the unpublished work of B. Turner who has seen the 413-414 transition in emission). Here we report emission from the 312-313 transition at 28.975 GHz in Sagittarius A (Sgr A).

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