Peering into the Milky Way by FAST: IV. Identification of two new Galactic supernova remnants G203.1+6.6 and G206.7+5.9

X. Y. Gao, W. Reich, X. H. Sun +5

A 5${}^{\circ }$ $\times$ 7${}^{\circ }$ sky area containing two large radio structures of G203.1+6.6 and G206.7+5.9 with a size of about 2.5${}^{\circ }$ and 3.5${}^{\circ }$ respectively is…