Radio recombination line (H92α) observations of Sgr E

Abstract

Observations of radio recombination line (H92α) and 8.3-GHz continuum emission from several probable thermal sources in the Galactic Centre HII complex Sgr E have been made using the Very Large Array. Line emission has been detected from seven of these sources, confirming their thermal nature and also locating them in a single kinematical entity moving with νLSR ≈ -205 km s-1. The continuum sources are well resolved by the 8-arcsec beam, and several have complex structure including shells, arcs and cores. One source (G 358.6 + 0.06) has no significant H92α flux, despite its relatively bright continuum and flat spectrum. Further observations will be needed to determine whether or not this interesting source is actually thermal. Show more