抛射

• Visual carbon stars whose mid - infrared spectra are mainly dominated by photospheric continuum and show large excesses at 60um , represent a transition phase which follows an interruption of mass loss from the oxygen - rich phase and begins a new phase of the mass loss of carbon - rich material . excesses at 60um in these stars are the emission from the residual of oxygen - rich material
  光学碳星的中红外能量主要来自光球，在60 m处存在超量发射，人们认为其演化阶段处在抛射富氧物质终止和新的富碳拱星壳层形成之间，其60 m超量发射就是富氧物质的残余效应。