activity
20242026
collaborators

6 papers

astro-ph.HE2026

Molecular and Atomic Gas Associated with the Gamma Ray Supernova Remnant RCW 103

H. Inoue, Y. Asano, R. G. Bhuvana +15

We present a study of the interstellar molecular and atomic gas associated with the gamma-ray supernova remnant (SNR) RCW 103 using the Mopra CO( = 1-0), Atacama Large Mi…

astro-ph.SR2026

Protoplanetary Disk Evolution in a Low-Metallicity Environment: JWST's First Mid-Infrared Census of Low-Mass Stars

Chikako Yasui, Natsuko Izumi, Masao Saito +3

This study presents the first high-resolution, high-sensitivity mid-infrared (MIR) investigation of protoplanetary disks in a low-metallicity environment, using JWST/NIRCam and MIR…

astro-ph.GA2026

Digging into the chemical complexity in the outer Galaxy: A hot molecular core in Sharpless 2-283

Toki Ikeda, Takashi Shimonishi, Hiroyuki Kaneko +3

The outer Galaxy (galactocentric distance 13.5 kpc) serves as an excellent laboratory for investigating the chemical complexity in low-metallicity environments. Here, we p…

astro-ph.GA2025

The detection of spatially resolved protosteller outflows and episodic jets in the outer Galaxy

Toki Ikeda, Takashi Shimonishi, Natsuko Izumi +5

We present the first detection of spatially resolved protostellar outflows and jets in the outer Galaxy. We observed five star-forming regions in the outer Galaxy (Sh 2--283, NOMF0…

astro-ph.GA2024

Revealing Potential Initial Mass Function variations with metallicity: JWST observations of young open clusters in a low-metallicity environment

Chikako Yasui, Natsuko Izumi, Masao Saito +3

We present the substellar mass function of star-forming clusters (0.1 Myr old) in a low-metallicity environment (0.7 dex). We performed deep JWST/NIRCam and MIRI…

astro-ph.GA2024

Overview Results of JWST Observations of Star-Forming Clusters in the Extreme Outer Galaxy

Natsuko Izumi, Michael E. Ressler, Ryan M. Lau +4

The extreme outer Galaxy (EOG), which we define as the region of the Milky Way with a galactocentric radius of more than 18 kpc, provides an excellent opportunity to study star for…