activity
20102014
most citedHigh Velocity Compact Clouds in the Sagittarius C Region

15 citations · 31 across the 4 of their papers we have counts for

collaborators

7 papers

astro-ph.GA2014★ 12 cited

Millimeter-wave Spectral Line Surveys toward the Galactic Circumnuclear Disk and Sgr A*

Shunya Takekawa, Tomoharu Oka, Kunihiko Tanaka +3

We have performed unbiased spectral line surveys at 3 mm band toward the Galactic circumnuclear disk (CND) and Sgr A* using the Nobeyama Radio Observatory (NRO) 45 m radio telescop…

astro-ph.GA2014★ 3 cited

Millimeter-wave Molecular Line Observations of the Tornado Nebula

Daisuke Sakai, Tomoharu Oka, Kunihiko Tanaka +3

We report the results of millimeter-wave molecular line observations of the Tornado Nebula (G357.7--0.1), which is a bright radio source behind the Galactic Center region. A 15'x15…

astro-ph.GA2014★ 15 cited

High Velocity Compact Clouds in the Sagittarius C Region

Kunihiko Tanaka, Tomoharu Oka, Shinji Matsumura +2

We report the detection of extremely broad emission toward two molecular clumps in the Galactic central molecular zone. We have mapped the Sagittarius C complex ($-0^\circ.61 < l <…

astro-ph.GA2013

Kinematics of Shocked Molecular Gas Adjacent to the Supernova Remnant W44

Tomoro Sashida, Tomoharu Oka, Kunihiko Tanaka +4

We mapped molecular gas toward the supernova remnant W44 in the HCO+ J=1-0 line with the Nobeyama Radio Observatory 45 m telescope and in the CO J=3-2 line with the Atacama Submill…

astro-ph.GA2012

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,…

astro-ph.GA2011

High Atomic Carbon Abundance in Molecular Clouds in the Galactic Center Region

Kunihiko Tanaka, Tomoharu Oka, Shinji Matsumura +2

This letter presents a Nyquist-sampled, high-resolution [CI] 3P1-3P0 map of the -0.2 deg < l < 1.2 deg x -0.1 deg < b < 0 deg region in the Central Molecular Zone (CMZ) taken with…