VizieR Online Data Catalog: Laboratory analysis of methylketene (Bermuez+, 2018)

Millimeterwave room-temperature rotational spectrum of methyl ketene was recorded from 50 to 330~GHz. The internal rotation analysis of its ground state and first torsional excited state was performed with the rho-axis-method employing RAM36 program.

More than 3000 transitions of the rotational spectrum of the ground state (K_amax=18) and first torsional excited state K_amax=13 of methyl ketene were fitted using a Hamiltonian that contains 41 parameters with RMS of 41kHz. Column density limits were calculated but no lines were detected in the ISM belonging to methyl ketene.

(2 data files).