Physics
Scientific paper
Mar 1986
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986p%26ss...34..301t&link_type=abstract
Planetary and Space Science (ISSN 0032-0633), vol. 34, March 1986, p. 301-306.
Physics
22
Atmospheric Temperature, Nightglow, Oxygen Spectra, Annual Variations, Hydroxyl Emission, Molecular Rotation, Nocturnal Variations, Photometry
Scientific paper
Regular observations of the O2(1 Sigma, 0-1) atmospheric band at 8645 A/O2A(0,1)/ and the rotational temperature, together with the OH(9,4) band and OI 5577 A airglow emissions, using multichannel tilting filter type photometers, have been carried out at Cachoeira Paulista (22.7 deg S, 45.0 deg W), Brazil, since February 1983. The O2A(0, 1) band intensities occasionally vary from 200 to 1000 R during a night. Covariations in nocturnal and seasonal variation with the OI 5577 A emission were observed. The temperatures determined from the P branch of the O2A(0, 1) band vary between 180 and 230 K. The amplitude of the nocturnal temperature variation is sometimes larger than that determined from the OH emission, and the phase of the variation, on some occasions, leads that of the OH.
Batista Pedro
Sahai Yogeshwar
Takahashi Hiroyuki
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