The Laboratory Spectrum of the PS Radical and Related Astronomical Search

摘要: The millimeter-wave rotational spectrum of the PS radical (X 2Pi r) was observed in laboratory for first time frequency region 79-293 GHz by discharging mixture PSCl3 and He. Some 44 lines were measured, constant, centrifugal distortion term spin-orbit coupling Lambda-type doubling constants, hyperfine constants determined. Based on measured calculated frequencies, an astronomical search interstellar circumstellar made without success Orion KL, Sgr B2, L134N,IRC + 10216, VY CMa, OH 231.8 4.2. 29 references.