Radio studies of the Galactic Centre - II. The arc, threads and related features at 90cm (330 MHz).

Abstract

The paper presents 90-cm VLA observations of a 2 x 2 deg field around the Galactic Center; the full field was mapped with a resolution of 100 x 62 sq arcsec, and smaller regions were mapped with resolutions as high as 14 x 9 sq arcsec. The resulting images contain most of the unique features associated with the Galactic Center, including the arc and its linear filaments, the arched filaments, the 'threads', the thermal 'spiral' Sgr A West, the nonthermal source Sgr A East, and Sgr C.