Broad band high resolution rotational spectroscopy for Laboratory Astrophysics.

ABSTRACT: We present a new experimental setup devoted to the study of gas phase molecules and processes using broad band high spectral resolution rotational spectroscopy. A reactor chamber has been equipped with radio receivers similar to those used by radio astronomers to search for molecular emission in space. The whole Q (31.5-50 GHz) and W bands (72-116.5 GHz) are available for rotational spectroscopy observations. The receivers are equipped with 16×2.5 GHz Fast Fourier Transform spectrometers with a spectral resolution of 38.14 kHz allowing the simultaneous observation of the complete Q band and one third of the W band. The whole W band can be observed in three settings in which the Q band is always observed. Species such as CH₃CN, OCS, and SO₂ are detected, together with

SUBMITTER: Cernicharo J 

PROVIDER: S-EPMC6557716 | biostudies-literature | 2019

REPOSITORIES: biostudies-literature