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Title:
Large-Scale Molecular Gas Survey in 12CO, 13CO and C18O (J = 2-1) with the Osaka 1.85m mm-submm Telescope
Authors:
Onishi, Toshikazu; Nishimura, Atsushi; Tokuda, Kazuki; Harada, Ryohei; Dobashi, Kazuhito; Shimoikura, Tomomi; Kimura, Kimihiro; Ogawa, Hideo
Affiliation:
AA(Department of Physical Science, Graduate School of Science, Osaka Prefecture University, 1-1 Gakuen-cho, Naka-ku, Sakai, Osaka 599-8531, Japan ), AB(Nobeyama Radio Observatory, National Astronomical Observatory of Japan, 462-2 Nobeyama Minamimaki-mura, Minamisaku-gun, Nagano 384-1305, Japan), AC(Department of Physical Science, Graduate School of Science, Osaka Prefecture University, 1-1 Gakuen-cho, Naka-ku, Sakai, Osaka 599-8531, Japan ), AD(Department of Physical Science, Graduate School of Science, Osaka Prefecture University, 1-1 Gakuen-cho, Naka-ku, Sakai, Osaka 599-8531, Japan ), AE(Department of Astronomy and Earth Sciences, Tokyo Gakugei University, 4-1-1 Nukuikita-machi, Koganei, Tokyo 184-8501, Japan), AF(Department of Astronomy and Earth Sciences, Tokyo Gakugei University, 4-1-1 Nukuikita-machi, Koganei, Tokyo 184-8501, Japan), AG(Department of Physical Science, Graduate School of Science, Osaka Prefecture University, 1-1 Gakuen-cho, Naka-ku, Sakai, Osaka 599-8531, Japan ), AH(Department of Physical Science, Graduate School of Science, Osaka Prefecture University, 1-1 Gakuen-cho, Naka-ku, Sakai, Osaka 599-8531, Japan )
Publication:
From Interstellar Clouds to Star-Forming Galaxies: Universal Processes?, Proceedings of the International Astronomical Union, IAU Symposium, Volume 315, article id. E62
Publication Date:
00/2016
Origin:
CUP
Keywords:
ISM: clouds, stars: formation, radio lines: ISM,
Abstract Copyright:
(c) 2016: Copyright © International Astronomical Union 2016
DOI:
10.1017/S1743921316008243
Bibliographic Code:
2016IAUS..315E..62O

Abstract

We have developed a new mm-submm telescope with a diameter of 1.85 m (hereafter, Osaka 1.85-m telescope) installed at the Nobeyama Radio Observatory. The scientific goal is to precisely reveal physical properties of molecular clouds in the Galaxy by obtaining a large-scale distribution of molecular gas, which also can be compared with large-scale observations in various wavelengths. The target frequency is ~230 GHz; simultaneous observations in J = 2-1 lines of 12CO, 13CO and C18O are achieved with a beam size (HPBW) of 2.7 arcmin. Here we present the progress of observations and the scientific results obtained by Osaka 1.85-m telescope. We note that these J = 2-1 data of the Galactic molecular clouds will be precious for the comparison with those of extra-galactic ones that will be obtained with the ALMA with the comparable spatial resolutions.
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