Abstract
In a recent survey article, Goldberg (1954) gives a list of 127 molecular bands which have been observed in the absorption spectrum of the earth’s atmosphere by studying the solar spectrum between 0.3 and 24
μ
. Among these, 35 bands are attributed to the following molecules: O
3
, N
2
O, CH
4
, HDO, CO. The main purpose of this contribution to the Discussion was to show several of these bands as they appear on solar spectrograms taken at the International Scientific Station, Jungfraujoch (Switzerland), in collaboration with Dr L. Neven of the Royal Observatory, Uccle (Belgium). The altitude of this station is 3580 m. It has been pointed out in earlier notes (Migeotte & Neven 1952
a, b
) that these data have been obtained, under high resolving power, by using the prism-grating infra-red spectrograph of the University of Liege (Migeotte 1945). Between 9.33 and 10.08
μ
, our spectrograms show 320 lines which are mainly due to the fine structure of the 9.6
μ
band of ozone (Migeotte, Neven & Vigroux 1952). Part of our data has been analyzed recently by Kaplan (1955), of the Institute for Advanced Study in Princeton (N. J.), U. S. A. A good fit for low
J
has been obtained with the following upper-state parameters: vibrational frequency
v
3
1042.16 cm
-1
; rotational constants:
A
= 3.502
1
cm
-1
,
B
= 0.440
1
cm
-1
,
C
= 0.388
3
Cm
-1
;
δ
= 0.0166
34
.