摘要
使用IRAS的红外观测资料,对恒星形成区CMaOB1/R1复合体的红外发射特性进行了详细的研究,并与光学观测,射电连续观测及CO观测进行了比较,结果表明,这个复合体的发射是由一个弥散发射背景和若干分离源所组成。红外弥散发射可由两个O星的加热来解释,但扩展的HII区可能是由一个老的HII区的遗迹与仍处于主序阶段的两个O型星共同作用的结果,分离源大多与已知的发射或反射星云相对应,但存在几个没有已知光学对应体的源,它们可能是刚进入主序的早型星激发的。
Using IRAS data, the infrared emission character of the star-forming region CMa OBI/ R1 complex has been studied in detail and compared with optical, CO, radio continuum observations. The results show that the emission from this complex consists of a diffuse emission and several discrete sources. The infrared diffuse emission can be explained by two O stars, but the extended HII region may be the combined result of a remnant of an old HII region and two O stars, which are still on the main sequence. Most of the discrete sources correspond with the emission or reflection nebulae, but there are a few sources, which have no optical counterparts. These sources may be excited by early-type stars just arriving on the main sequence and still embedded in dense dust clouds.
