200 citations · 2.2k across the 53 of their papers we have counts for
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Physical Conditions in Molecular Clouds in the Arm and Interarm Regions of M51
J. Koda, N. Scoville, T. Hasegawa +10
We report systematic variations in the CO(2-1)/CO(1-0) line ratio (R) in M51. The ratio shows clear evidence for the evolution of molecular gas from the upstream interarm regions,…
Structured Molecular Gas Reveals Galactic Spiral Arms
Tsuyoshi Sawada, Tetsuo Hasegawa, Jin Koda
We explore the development of structures in molecular gas in the Milky Way by applying the analysis of the brightness distribution function (BDF) and the brightness distribution in…
Discovery of the Pigtail Molecular Cloud in the Galactic Center
Shinji Matsumura, Tomoharu Oka, Kunihiko Tanaka +3
This paper reports the discovery of a helical molecular cloud in the central molecular zone (CMZ) of our Galaxy. This "pigtail" molecular cloud appears at (l, b, V_LSR) ~ (-0.7deg,…
Structural Variation of Molecular Gas in the Sagittarius Arm and Inter-Arm Regions
Tsuyoshi Sawada, Tetsuo Hasegawa, Masahiro Sugimoto +2
We have carried out survey observations toward the Galactic plane at l~38 deg in the 12CO and 13CO J=1-0 lines using the Nobeyama Radio Observatory 45-m telescope. A wide area (0.8…