A 2650 Mc/s survey of an area in the constellation of Norma

Abstract

The 2650 Mc/s isophotes of an area of approximately 6 sq degrees centred at lII = 332°, bII = 0°, are presented. The aerial beamwidth was 7' • 5 between halfpower points. Comparison of the isophotes with those of an earlier survey at 1410 Mc/s and with optical plates taken at Mt. Stromlo has led to the identification of several sources; one is coincident with a filamentary structure previously suggested as a possible supernova remnant. All data processing including the drawing of the isophotes was carried out on a computer.