activity
19982024
most citedBar-driven Transport of Molecular Gas to Galactic Centers and Its Consequences

357 citations · 3.1k across the 70 of their papers we have counts for

collaborators

69 papers

astro-ph.GA2024

Components of star formation in NGC 253 : Non-negative Matrix Factorization Analysis with the ALCHEMI integrated intensity images

Ryo Kishikawa, Nanase Harada, Toshiki Saito +12

It is essential to examine the physical or chemical properties of molecular gas in starburst galaxies to reveal the underlying mechanisms characterizing starbursts. We used non-neg…

astro-ph.GA2024

Whole-disk sampling of molecular clouds in M83

Akihiko Hirota, Jin Koda, Fumi Egusa +17

We present a catalog of clouds identified from the CO (1--0) data of M83, which was observed using Atacama Large Millimeter/submillimeter Array (ALMA) with a spatial resolut…

astro-ph.GA2024

Neural Network Constraints on the Cosmic-Ray Ionization Rate and Other Physical Conditions in NGC 253 with ALCHEMI Measurements of HCN and HNC

Erica Behrens, Jeffrey G. Mangum, Serena Viti +15

We use a neural network model and ALMA observations of HCN and HNC to constrain the physical conditions, most notably the cosmic-ray ionization rate (CRIR, zeta), in the Central Mo…

astro-ph.GA2024

A temperature or FUV tracer? The HNC/HCN ratio in M83 on the GMC scale

Nanase Harada, Toshiki Saito, Yuri Nishimura +2

The HNC/HCN ratio is observationally known as a thermometer in Galactic interstellar molecular clouds. A recent study has alternatively suggested that the HNC/HCN ratio is affected…

astro-ph.GA2024

Physical Properties of the Southwest Outflow Streamer in the Starburst Galaxy NGC 253 with ALCHEMI

Min Bao, Nanase Harada, Kotaro Kohno +19

The physical properties of galactic molecular outflows are important as they could constrain outflow formation mechanisms. We study the properties of the southwest (SW) outflow str…

astro-ph.GA2024

The ALCHEMI atlas: principal component analysis reveals starburst evolution in NGC 253

Nanase Harada, David S. Meier, Sergio Martín +24

Molecular lines are powerful diagnostics of the physical and chemical properties of the interstellar medium (ISM). These ISM properties, which affect future star formation, are exp…