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Dome Fuji Seeing -the Summer Results and the Future Winter-over Observations

Published online by Cambridge University Press:  30 January 2013

Hirofumi Okita ,
Naruhisa Takato ,
Takashi Ichikawa ,
Colin S. Bonner ,
Michel C. B. Ashley ,
John W. V. Storey  and
the 51st and 52nd JARE Dome Fuji teams
Hirofumi Okita
Affiliation:
Astronomical Institute, Tohoku University, 6-3 Aramaki, Aoba-ku, Sendai, Japan email: [email protected]
Naruhisa Takato
Affiliation:
Subaru Telescope, National Astronomical Observatory of Japan, 650 North A'ohoku Place, Hilo, Hawaii
Takashi Ichikawa
Affiliation:
Astronomical Institute, Tohoku University, 6-3 Aramaki, Aoba-ku, Sendai, Japan email: [email protected]
Colin S. Bonner
Affiliation:
School of Physics, University of New South Wales, NSW 2052, Australia
Michel C. B. Ashley
Affiliation:
School of Physics, University of New South Wales, NSW 2052, Australia
John W. V. Storey
Affiliation:
School of Physics, University of New South Wales, NSW 2052, Australia
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Abstract

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We carried out the first seeing measurements at Dome Fuji in the 2010–2011 austral summer. From these observations, we found that the summer seeing at Dome Fuji was 1.2″ (mean), 1.1″ (median), 0.83″ (25th percentile) and 1.5″ (75th percentile), respectively. We also found that the seeing changed continuously and had a minimum around 0.7″ at ~18:00 hours daily. We compared the seeing with some weather parameters obtained from the 16 m mast, and found that the seeing had good correlations with atmosphere temperature and wind shear. These results suggest that the seeing is degraded by turbulence near the surface boundary layer. Because the data were obtained only over a short duration in summer, the general characteristics of Dome Fuji's seeing could not be evaluated. We plan to observe the seeing in winter with a stand-alone DIMM telescope. This new DIMM, which we named the Dome Fuji Differential Image Motion Monitor (DF–DIMM), will be installed at Dome Fuji in January 2013.

Keywords

site testingatmospheric effectstelescopes
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 8 , Symposium S288: Astrophysics from Antarctica , August 2012 , pp. 25 - 28
Copyright
Copyright © International Astronomical Union 2013

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