activity
20202023
most citedDevelopment of a new wideband heterodyne receiver system for the Osaka 1.85-m mm-submm telescope -- Receiver development & the first light of simultaneous observation in 230GHz and 345GHz bands with an SIS-mixer with 4-21GHz IF output

11 citations · 36 across the 7 of their papers we have counts for

collaborators

7 papers

astro-ph.GA2023

Predicting reliable H column density maps from molecular line data using machine learning

Yoshito Shimajiri, Yasutomo Kawanishi, Shinji Fujita +13

The total mass estimate of molecular clouds suffers from the uncertainty in the H-CO conversion factor, the so-called factor, which is used to convert the C…

astro-ph.GA2022★ 11 cited

Distance determination of molecular clouds in the 1st quadrant of the Galactic plane using deep learning : I. Method and Results

Shinji Fujita, A. M. Ito, Yusuke Miyamoto +15

Machine learning has been successfully applied in varied field but whether it is a viable tool for determining the distance to molecular clouds in the Galaxy is an open question. I…

astro-ph.GA2021★ 9 cited

Nobeyama 45 m Local Spur CO survey. I. Giant molecular filaments and cluster formation in the Vulpecula OB association

Mikito Kohno, Atsushi Nishimura, Shinji Fujita +13

We have performed new large-scale CO, CO, and CO 1-0 observations toward the Vulpecula OB association () as part of the Nobeyama 45 m Loca…

astro-ph.IM2021★ 5 cited

Development of a new wideband heterodyne receiver system for the Osaka 1.85-m mm-submm telescope -- Corrugated horn & Optics covering 210-375 GHz band

Yasumasa Yamasaki, Sho Masui, Hideo Ogawa +21

The corrugated horn is a high performance feed often used in radio telescopes. There has been a growing demand for wideband optics and corrugated horns in millimeter and submillime…

astro-ph.IM2021★ 11 cited

Development of a new wideband heterodyne receiver system for the Osaka 1.85-m mm-submm telescope -- Receiver development & the first light of simultaneous observation in 230GHz and 345GHz bands with an SIS-mixer with 4-21GHz IF output

Sho Masui, Yasumasa Yamasaki, Hideo Ogawa +22

We have developed a wideband receiver system for simultaneous observations in CO lines of J = 2-1 and J = 3-2 transitions using the Osaka 1.85-m mm-submm telescope. As a frequency…

astro-ph.IM2020

Current status and future plan of Osaka Prefecture University 1.85-m mm-submm telescope project

Atsushi Nishimura, Kazuki Tokuda, Ryohei Harada +25

We report the current status of the 1.85-m mm-submm telescope installed at the Nobeyama Radio Observatory (altitude 1400 m) and the future plan. The scientific goal is to reveal th…

astro-ph.IM2020

Development of the new multi-beam receiver and telescope control system for NASCO

Atsushi Nishimura, Akio Ohama, Kimihiro Kimura +59

We report the current status of the NASCO (NAnten2 Super CO survey as legacy) project which aims to provide all-sky CO data cube of southern hemisphere using the NANTEN2 4-m submil…