New Views of Molecular Gas Distribution and Star Formation of the Southern Sky with NANTEN

  • Toshikazu Onishi
Part of the Astrophysics and Space Science Proceedings book series (ASSSP)

Star formation is a fundamental process that dominates the cycling of various matters in galaxies. Stars are formed in molecular clouds, and the formed stars often affect the parent body of the molecular gas strongly via their UV photons, stellar winds, and supernova explosions. It is therefore of vital importance to reveal the distribution of molecular gas in a galaxy in order to investigate the galaxy history. Recent progress in developing (sub-)millimeter wave receiver systems has enabled us to rapidly increase our knowledge on molecular clouds. The "NANTEN” telescope has an angular resolution of 2′6 at 115 GHz and has rapidly revealed the molecular view of the Galaxy, LMC, and SMC with its relatively high spatial resolution. The spatial coverage of the NANTEN is comparable or larger than that by CfA 1.2m telescopes[1] in the southern sky. In this presentaion, I shall introduce some of the results obtained from the NANTEN CO surveys in the Galaxy. I will also mention the "NANTEN2” project, which is an upgrade of NANTEN to achieve an extensive survey in sub-mm wavelength at Atacama.


Star Formation Molecular Cloud Galactic Plane Galactic Latitude Molecular View 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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© Springer Science+Business Media, LLC 2008

Authors and Affiliations

  • Toshikazu Onishi
    • 1
  1. 1.Department of AstrophysicsNagoya UniversityChikusa-kuJapan

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