Astronomy and Astrophysics – Astronomy
Scientific paper
Nov 2011
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011rmxac..41...83m&link_type=abstract
Astronomical Site Testing Data in Chile (Eds. M. Curé, A. Otárola, J. Marín, & M. Sarazin) Revista Mexicana de Astronomía y Astr
Astronomy and Astrophysics
Astronomy
Atmospheric Effects, Site Testing
Scientific paper
Institute of Astronomy, University of Tokyo is promoting a project called TAO (University of Tokyo Atacama Observatory; Yoshii et al. 2010) to construct a 6.5 m infrared telescope on the summit of Cerro Chajnantor (5640 m altitude) at Atacama desert in northern Chile. For the evaluation of the site characteristics, we first conducted weather and cloud emissivity monitoring and seeing measurement in 2006-2007. The clear fraction was high as >80% and the median seeing in the V-band low as 0."69. A 1 m pathfinder telescope called miniTAO was installed and started observation in 2009. We have successfully obtained 1.875 μm hydrogen Paα images as well as 30-40 μm images for the first time from a ground-based telescope. These results demonstrate that the summit of Cerro Chajnantor is one of the best sites for the infrared astronomy on the Earth.
Aoki Tadao
Asano Kenichi
Bronfman Leonard
Doi Makoto
Hamuy Mario
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