Back to Volume
Paper: Interferometric Radio and Single-dish (Sub)millimeter Observations of Apr 220
Volume: 320, The Neutral ISM in Starburst Galaxies
Page: 35
Authors: Wiedner, M.; Wilson, C.; Reid, M.; Saito, M.; Menten, K.
Abstract: Recent interferometric adio continuum observations at 8.5 and 15 GHz are presented showing the two nuclei of Arp 220 as well as emission around them and extending 2″ (700 pc) to the SSW. This emission has the characteristics of synchrotron radiation and is likely to arise from supernovae formed in a massive star burst. Single dish line observations of CO 3-2, 2-1 and HCN 4-3 and 3-2 indicate that the gas is denser in the eastern nucleus than in the western. These and other observations are consistent with the hypothesis that the starburst in the eastern nucleus is less evolved than that in the western.
Back to Volume