光学对应体

没有观测到光学对应体。

No optical counterpart has been observed .

通过对ROSAT亮X射线源光学对应体的证认，我们已经发现了7个激变变星。

By identifying the optical objects of the ROSAT bright X - ray sources , 7 cataclysmic variables ( CVs ) have been discovered .

本文利用红外天文卫星点源表（IRASPSC）及哈勃望远镜导星星表（HSTGSC）对1990年新发表的75个S星进行了IRAS红外源及GSC光学对应体的证认。

New IRAS associations for some S stars by Stephenson in 1990 are identified in this paper by using the IRAS Point Source Catalog and the HST Guide Star Catalog .

极端碳星是高度演化后的红外碳星，它的质量损失率及光深都非常高，几乎没有其光学对应体，并将很快演化为前行星状星云。

The extreme carbon stars , whose derived mass loss rates and optical depths are both very high , are more evolved than infrared carbon stars .

喷流在光学波段的对应体一直是非常少见的，到目前为止发现的数目依然很少。

Optics jets have been extremely rare , so far the number discovered is very few .