Ammonia mapping observations toward the Galactic massive star-forming region Sh 2-255 and Sh 2-257

Mikito Kohno, Toshihiro Omodaka, Toshihiro Handa +9

We performed NH${}_3(J,K)=(1,1),(2,2),$ and $(3,3)$ mapping observations toward the Galactic massive star-forming region Sh 2-255 and Sh 2-257 using the Nobeyama 45-m telescope as…