Radio emission from planetary nebulae

We have analysed the radio fluxes for 264 planetary nebulae for which reliable measurements of fluxes at 1.4 and 5 GHz, and of nebular diameters are available. For many of the...我们针对264个行星状星云（planetary nebulae）开展了射电流量分析，该批星云均具备1.4吉赫与5吉赫频段的可靠流量测量数据，以及星云直径的实测结果。其中多数的……