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“KAGONMA” NH3 mapping observations of molecular clouds with Nobeyama 45m telescope

Published online by Cambridge University Press:  13 January 2020

T. Murase
Affiliation:
Faculty of Science, Kagoshima University, 1-21-35 Korimoto, Kagoshima 890-0065, Japan. email: takerun.charvel@gmail.com
T. Handa
Affiliation:
Faculty of Science, Kagoshima University, 1-21-35 Korimoto, Kagoshima 890-0065, Japan. email: takerun.charvel@gmail.com
M. Maebata
Affiliation:
Faculty of Science, Kagoshima University, 1-21-35 Korimoto, Kagoshima 890-0065, Japan. email: takerun.charvel@gmail.com
Z. Yang
Affiliation:
Faculty of Science, Kagoshima University, 1-21-35 Korimoto, Kagoshima 890-0065, Japan. email: takerun.charvel@gmail.com
Y. Hirata
Affiliation:
Faculty of Science, Kagoshima University, 1-21-35 Korimoto, Kagoshima 890-0065, Japan. email: takerun.charvel@gmail.com
K. Ishizaki
Affiliation:
Faculty of Science, Kagoshima University, 1-21-35 Korimoto, Kagoshima 890-0065, Japan. email: takerun.charvel@gmail.com
K. Sunada
Affiliation:
Mizusawa VERA Observatory, National Astronomical Observatory of Japan, 2-21-1 Osawa, Mitaka, Tokyo 181-8588, Japan.
M. Nakano
Affiliation:
Faculty of Education, Oita University, 700 Dannoharu, Oita 870-1192, Japan.
T. Omodaka
Affiliation:
Faculty of Science, Kagoshima University, 1-21-35 Korimoto, Kagoshima 890-0065, Japan. email: takerun.charvel@gmail.com
S. Shihara
Affiliation:
Faculty of Science, Kagoshima University, 1-21-35 Korimoto, Kagoshima 890-0065, Japan. email: takerun.charvel@gmail.com
K. Wada
Affiliation:
Faculty of Science, Kagoshima University, 1-21-35 Korimoto, Kagoshima 890-0065, Japan. email: takerun.charvel@gmail.com
T. Umemoto
Affiliation:
Nobeyama Radio Observatory, National Astronomical Observatory of Japan, Minamimaki 462-2, Minamisaku, Nagano 384-1305, Japan.
M. Matsuo
Affiliation:
Nobeyama Radio Observatory, National Astronomical Observatory of Japan, Minamimaki 462-2, Minamisaku, Nagano 384-1305, Japan.
T. Minamidani
Affiliation:
Nobeyama Radio Observatory, National Astronomical Observatory of Japan, Minamimaki 462-2, Minamisaku, Nagano 384-1305, Japan.
K. Torii
Affiliation:
Nobeyama Radio Observatory, National Astronomical Observatory of Japan, Minamimaki 462-2, Minamisaku, Nagano 384-1305, Japan.
N. Kuno
Affiliation:
Graduate School of Pure and Applied Sciences, University of Tsukuba, Tennodai 1-1-1, Tsukuba 305-8577, Japan. Tomonaga Center for the History of the Universe, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8571, Japan.
S. Fujita
Affiliation:
Nobeyama Radio Observatory, National Astronomical Observatory of Japan, Minamimaki 462-2, Minamisaku, Nagano 384-1305, Japan. Graduate School of Pure and Applied Sciences, University of Tsukuba, Tennodai 1-1-1, Tsukuba 305-8577, Japan.
M. Kohno
Affiliation:
Graduate School of Pure and Applied Sciences, University of Tsukuba, Tennodai 1-1-1, Tsukuba 305-8577, Japan.
M. Kuriki
Affiliation:
Graduate School of Pure and Applied Sciences, University of Tsukuba, Tennodai 1-1-1, Tsukuba 305-8577, Japan.
A. Nishimura
Affiliation:
Graduate School of Pure and Applied Sciences, University of Tsukuba, Tennodai 1-1-1, Tsukuba 305-8577, Japan.
Y. Tsuda
Affiliation:
Meisei University, Hodokubo, Hino, Tokyo 191-0042, Japan.
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Abstract

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In the collapsing phase of a molecular cloud, the molecular gas temperature is a key to understand the evolutionary process from a dense molecular cloud to stars. In order to know this, mapping observations in NH3 lines are required. Therefore, we made them based on the FUGIN (FOREST Unbiased Galactic plane Imaging survey with Nobeyama 45m telescope). The 6 maps were observed in NH3 (J,K) = (1,1), (2,2), (3,3) and H2O maser lines and obtained temperature maps; some show temperature gradient in a cloud. Additionally 72 cores were observed. These candidates were called as KAGONMA or KAG objects as abbreviation of KAgoshima Galactic Object survey with Nobeyama 45-M telescope in Ammonia lines. We show the results of two regions in W33 and discuss their astrophysical properties.

Type
Contributed Papers
Copyright
© International Astronomical Union 2020 

References

Elia, D. et al. 2013, ApJ, 772, 45.CrossRefGoogle Scholar
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