A reexamination of the Gum nebula |
| |
| Authors: | Klaus P Beuermann |
| |
| Institution: | (1) Institut für Reine und Angewandte Kernphysik, Universität Kiel, Germany |
| |
| Abstract: | A detailed analysis of interstellar measurements in the direction of the Gum nebula is carried out. The ionized region is shown to have an angular radius of  18° and appears to be bounded by a shell of neutral gas. The mean electron temperature deduced from radio-frequency absorption measurements is found to be  8500K. These parameters suggest that the nebula is the normal and possibly evolved Hii region of  Pup and  2 Vel, rather than the fossil Strömgren sphere of the Vela supernova as suggested by Brandtet al. (1971). |
| |
| Keywords: | |
| 本文献已被 SpringerLink 等数据库收录！ |
|
