Many important results have been obtained, mainly in the infrared spectra. For astrophysical
applications we will quote particularly the calculation of the broadening parameters of CO
perturbed by He (55), and the self-broadening of N
(56). Many theoretical or experimental
investigations in
this domain have been stimulated by new spatial observations of planenary atmospheres or by the
need of new molecular data in particular for Jupiter and Titan atmospheres. Particular attention
has
been paid to collisional broadening in various bands of CO
(55,57), NH
(58-60),
CH
(61-68), C
H
(69), C
H
(70), H
O (71). A special attention
has been paid to the problem of line mixing in CO (55), CO
(55), C
H
(69).
This considerable effort in molecular line broadening has contributed to
improve molecular databases.