Fourier Transform Emission Spectra of the (000)-(000) Band of the λ4051.6 Band of C3

Details Fourier Transform Emission Spectra of the (000)-(000) Band of the λ4051.6 Band of C3 Fourier Transform Emission Spectra of the (000)-(000) Band of the λ4051.6 Band of C3

May 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005apj...624.1116t&link_type=abstract

The Astrophysical Journal, Volume 624, Issue 2, pp. 1116-1120.

Astronomy and Astrophysics

Astronomy

6

Astrochemistry, Ism: Clouds, Ism: Molecules, Methods: Laboratory, Molecular Data

Scientific paper

The (000)-(000) band of the 4051.6 Å group (A˜1Πu-X˜1Σ+g) of C3 was recorded in emission with a Bruker IFS 120HR Fourier transform (FT) spectrometer at the University of Waterloo. The band was excited by a microwave discharge in isopropanol (less than a few mtorr) diluted in helium (2 torr). Our new FT data provide more reliable and accurately calibrated transition wavenumbers than those from the grating spectra given by Gausset and coworkers. Analysis of our new spectrum combined with the data by McCall and coworkers confirmed that the lower J levels in the A˜ state were strongly perturbed, as reported by Gausset and coworkers. The unidentified lines observed by McCall and coworkers could be attributed to extra transitions to an unknown perturbing state.

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