OH megamaser的抽运效率

PUMPING EFFICIENCY OF OH MEGAMASER

到目前为止已发现了106个OH megamaser源。经典的OH megamaser模型给出宿主星系的强的远红外辐射抽运非饱和的OH megamaser。抽运效率(S1667/S60)对于非饱和OH megamaser及其宿主星系来说是一个重要的物理参数。研究了什么物理量与抽运效率有关,得到无论OH megam aser的光度还是OH megamaser 1667MHz的流量密度都与抽运效率相关。但是主线强度比,主线 1667MHz的光学深度绝对值,主线1665MHz的流量密度均与抽运效率不相关。

So far 106 OH megamaser sources have been found. The classical OH megamaser model shows that the unsaturated OH megamaser is pumped by the intense far-infrared radiation from the host galaxies. The pumping efficiency （ S1667/S60） is a very important physical parameter for the unsaturated OH megamaser and their host galaxies. This paper studies what is related with the pumping efficiency. This paper obtains that both LOH and S1667 is correlated with （ S1667/S60 ） ; but all of RH ,｜-τ1 （OH1667MHz） , and S1665 are not correlated with log（ S1667/S60 ） , respectively.