Discovery of interstellar methyl formate

Details Discovery of interstellar methyl formate Discovery of interstellar methyl formate

Apr 1975

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1975apj...197l..29b&link_type=abstract

Astrophysical Journal, vol. 197, Apr. 1, 1975, pt. 2, p. L29-L31. Research supported by the Australian Research Grants Committe

Astronomy and Astrophysics

Astronomy

28

Electron Transitions, Formates, Interstellar Gas, Methyl Compounds, Molecular Spectra, Abundance, Electron States, Emission Spectra, Microwave Emission, Radio Astronomy

Scientific paper

The 1(10)-1(11) A-state transition of methyl formate HCOOCH3 has been detected in emission in the spectrum of Sgr B2. With a laboratory determination of 1610.249 MHz for the rest frequency of the transition, the radial velocity of the observed line is 53 plus or minus 6 km per sec. The nearby E-state transition at 1610.906 MHz may also have been detected. It is probable that the 1(10) and 1(11) levels are inverted and that the continuum emission of Sgr B2 is being amplified.

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