FOREST Unbiased Galactic Imaging Survey Research Articles

Atlas of CO-line Shells and Cavities around Galactic Supernova Remnants with FUGIN*

Abstract A morphological search for molecular shells and cavities was performed around 63 Galactic supernova remnants (SNRs) at 10° ≤ l ≤ 50°, ∣b∣ ≤ 1° using the FOREST Unbiased Galactic Imaging survey with the Nobeyama 45 m telescope CO-line data at high-angular (20″) and high-velocity (1.3 km s−1) resolutions. The results are presented as supplementary data for general purpose investigations of the interaction between SNRs and interstellar matter in the form of an atlas of CO-line maps superposed on radio continuum maps at 20 cm along with a list of their kinematic distances determined from CO-line radial velocities.

Difference of the Gas Density Histograms in and out of spiral arms in Milky Way Galaxy

Abstract“Gas Density Histogram (GDH)” is an observational counterpart of the probability density function (PDF) of the gas density of interstellar medium (ISM). We used 12CO data in (l, b) = (29°, 0) region from “FOREST unbiased galactic imaging survey with Nobeyama 45-m telescope (FUGIN)”, which is a large coverage survey in three CO (1-0) lines. Using the kinetic distance, we estimated the volume density of the voxel from the observed column density. The resultant GDHs of the inter-arm regions show lognormal or lognormal-like, but those in the spiral arm regions show flat-top shape.