Dome fuji in antarctica as a site for infrared and terahertz astronomy

Masumichi Seta, Naomasa Nakai, Shun Ishii, Makoto Nagai, Yusuke Miyamoto, Takashi Ichikawa, Naruhisa Takato, Hideaki Motoyama

Research output: Chapter in Book/Report/Conference proceedingConference contribution

4 Citations (Scopus)


Dome Fuji on the Antarctic high plateau may be a good site for terahertz astronomy because of its high altitude of 3,810 m and low average temperature of-54°C. We have demonstrated that the opacity at 220 GHz from Dome Fuji in summer is very good and stable; τ = 0.045 ± 0.007. We have developed a transportable 30 cm telescope to map the Milky Way in the CO (J=4-3) and the [CI] (3 P 1-3 P 0) lines at Dome Fuji from 2014. It has a 9′ beam. Physical conditions such as density and temperature of molecular clouds could be derived from a direct comparison of CO (J=4-3) and [CI] ( 3 P 1-3 P 0) with CO (J=1-0) taken by the Columbia-CfA survey. We are also developing a 1.2 m sub-millimeter telescope. It will be equipped with a dual superconducting device (SIS) receiver for 500/800 GHz. The 1.2 m telescope produces a 2.2′ beam at 492 GHz and could map a molecular cloud entirely. It could also observe nearby galaxies in the CO (J=4-3), CO (J=7-6), [CI] (3 P 1-3 P 0), [CI] (3 P 2- 3 P 1) and in continuum emission between 460-810 GHz.

Original languageEnglish
Title of host publicationAstrophysics from Antarctica
EditorsMichael G. Burton, Xiangqun Cui, Nicholas F. H. Tothill
Number of pages5
Publication statusPublished - 2012 Aug

Publication series

NameProceedings of the International Astronomical Union
ISSN (Print)1743-9213
ISSN (Electronic)1743-9221


  • Site testing
  • sub-millimeter
  • telescopes

ASJC Scopus subject areas

  • Medicine (miscellaneous)
  • Astronomy and Astrophysics
  • Nutrition and Dietetics
  • Public Health, Environmental and Occupational Health
  • Space and Planetary Science


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