Atmospheric transmission in the far-infrared at the South Pole and astronomical applications

Details Atmospheric transmission in the far-infrared at the South Pole and astronomical applications Atmospheric transmission in the far-infrared at the South Pole and astronomical applications

Mar 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990pasp..102..357t&link_type=abstract

Astronomical Society of the Pacific, Publications (ISSN 0004-6280), vol. 102, March 1990, p. 357-367.

Astronomy and Astrophysics

Astronomy

13

Antarctic Regions, Atmospheric Attenuation, Atmospheric Moisture, Far Infrared Radiation, Infrared Astronomy, Space Observations (From Earth), Astronomical Spectroscopy, Line Spectra

Scientific paper

The combination of low atmospheric water vapor, high altitude, and low temperatures makes the South Pole and other high interior parts of the Antarctic continent particularly suitable locations for certain types of infrared or millimeter-wave astronomy. Information available on the atmospheric column density of water at the South Pole and at Vostok, the Soviet station, are surveyed. To illustrate the usefulness of these areas for infrared astronomy, important astronomical lines in the wavelength region 50 to 200 microns are listed. The atmospheric transmission in this wavelength region is also calculated and plotted for 0.1 mm and 0.3 mm of precipitable water along the line of sight through the atmosphere. Such low values of precipitable water occur frequently enough to allow practical astronomical observations from the ground and, for certain cases, this can provide advantages over observations from high-flying aircraft or satellites.

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