activity
20202024
most citedSystematic Variations of CO J=2-1/1-0 Ratio in The Barred Spiral Galaxy M83

34 citations · 66 across the 5 of their papers we have counts for

collaborators

5 papers

astro-ph.GA2024★ 1 cited

Millimeter-wave CO and SiO Observations toward the Broad-velocity-width Molecular Feature CO 16.134-0.553: a Smith cloud scenario?

Hiroki Yokozuka, Tomoharu Oka, Shiho Tsujimoto +2

We report the results of the CO =1-0 and SiO =2-1 mapping observations towards the broad-velocity-width molecular feature CO 16.134-0.553 with the Nobeyama Ra…

astro-ph.GA2022★ 5 cited

Catalog of High Velocity Dispersion Compact Clouds in the Central Molecular Zone of Our Galaxy

Tomoharu Oka, Asaka Uruno, Rei Enokiya +5

This study developed an automated identification procedure for compact clouds with broad velocity widths in the spectral line data cubes of highly crowded regions. The procedure wa…

hep-ph2022★ 19 cited

A Global Analysis of Resonance-enhanced Light Scalar Dark Matter

Tobias Binder, Sreemanti Chakraborti, Shigeki Matsumoto +1

We study a minimal model for a light scalar dark matter, requiring a light scalar mediator to address the core-cusp problem and interact with the standard model particles. We analy…

astro-ph.GA2021★ 7 cited

New Look at the Molecular Superbubble Candidate in the Galactic Center

Shiho Tsujimoto, Tomoharu Oka, Shunya Takekawa +10

The region in the Galactic center is characterized by multiple shell-like structures and their extremely broad velocity widths. We revisit the molecular supe…

astro-ph.GA2020★ 34 cited

Systematic Variations of CO J=2-1/1-0 Ratio in The Barred Spiral Galaxy M83

J. Koda, T. Sawada, K. Sakamoto +18

We present spatial variations of the CO J=2-1/1-0 line ratio in M83 using Total Power array data from ALMA. While the intensities of these two lines correlate tightly, the ratio va…