PT Journal AU Käufl, HU Rothermal, H Drapatz, S TI Investigation of the Martian atmosphere by 10 micron heterodyne spectroscopy SO Astron. Astrophys. JI A&A PY 1984 BP 319 EP 325 VL 136 DE astronomical spectroscopy; atmospheric composition; infrared astronomy; mars atmosphere; spectral line width; carbon dioxide concentration; nonequilibrium thermodynamics; optical heterodyning; planetary radiation; mars; atmosphere; spectroscopy; carbon dioxide; altitude; kinetics; rotation; thermal properties; temperature; emissions; intensity; models; data; spectra ER