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An interpretation of the Mars spectrum taken by the Connes*

Published online by Cambridge University Press:  14 August 2015

L. D. Kaplan  and
L. D. Gray Young
L. D. Kaplan
Affiliation:
Space Sciences Division, Jet Propulsion Laboratory, California Institute of Technology, Pasadena, Calif., U.S.A.
L. D. Gray Young
Affiliation:
Space Sciences Division, Jet Propulsion Laboratory, California Institute of Technology, Pasadena, Calif., U.S.A.

Abstract

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Lines of the 2-0 and 3-0 bands of carbon monoxide and (many) bands of carbon dioxide appear prominently in the Connes' Mars spectrum [1]. Five carbon dioxide bands were measured to construct a curve of growth for CO2 lines formed in the Martian atmosphere [2]. A similar curve of growth was constructed for the 2-0 band of carbon monoxide. From these curves, we have computed the rotational temperature of the atmosphere, the surface pressure, and the abundance of CO and CO2. The surface pressure is found to be approximately equal to the CO2 partial pressure, i.e. ps ~ 5 mb. The CO concentration by volume was found to be slightly less than one part per thousand.

Type
Part II: Mars
Information
Symposium - International Astronomical Union , Volume 40: Planetary Atmospheres , 1971 , pp. 189
Copyright
Copyright © Reidel 1971 

References

1. Kaplan, L. D., Connes, J., and Connes, P.: 1969, ‘Carbon Monoxide in the Martian Atmosphere’, Astrophys. J. 157, L187–192.Google Scholar
2. Young, L. D. G.: 1969, ‘Interpretation of High Resolution Spectra of Mars: I. CO2 Abundance and Surface Pressure Derived from the Curve of Growth’, Icarus. Google Scholar