The South Pole Near Infrared Sky Brightness

Details The South Pole Near Infrared Sky Brightness The South Pole Near Infrared Sky Brightness

Aug 1996

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996pasp..108..718n&link_type=abstract

Publications of the Astronomical Society of the Pacific, v.108, p.718

Astronomy and Astrophysics

Astronomy

36

Atmospheric Effects, Site Testing

Scientific paper

We report our finding that the South Pole is the darkest known Earth-based site for near infrared astronomical observations. For this reason it has great potentail for the most sensitive surveys of distant or faint objects. We find that the south polar sky background is substantially darker in the standard near infrared J, H, and K filters, and in an optimized K_DARK filter centered at 2.36 microns. In particular, the K_DARK background at the South Pole is only 162 +/- 67 mu-Jy arcsec^-2 at the zenith. This is consistent with the results described in an accompanying paper by Ashley et al. 1996, and is comparable to the sky brightness measured by high altitude balloon in the 2.4 micron (Matsumoto et al. 1994). (SECTION: Atmospheric Phenomena and Seeing)

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