A near Infrared Deep Survey for Primeval Galaxies

我们用红外空间天文台(ISO)的红外相机(ISO)进行了7微米的深度探测计划。我们在洛克曼HI洞的一个小区域(3‘x3’)发现了15个5西格玛；均方根值以上的震源。在15个源中，还在近红外(近红外：-2微米)观测到了14个物体。大多数7微米的源都有近红外对应物，其中大多数被认为是具有中等红移的星系。然而，据推测，少数7微米的源没有近红外对应物。这些物体可能是被现有的光学和近红外深度探测没有探测到的严重发红的种群。

We have performed our 7 micron deep survey program made with Infrared Space Observatory (ISO) , the infrared camera of ISO (ISOCAM).We have found 15 sources above a 5 sigma_<rms> significance in a small selected area (3'x3') in the lockman HI hole. Among the 15 sources 14 objects have also been observed in the near infrared (NIR : -2 micron) . The majority of the 7 micron sources have NIR counterparts most of which are considered to be galaxies with intermediate redshifts.It is, however, infriguing that a few 7 micron sources have no NIR counterparts. There objects may be heavily reddened populations which have not been detected by existing optical and NIR deep surveys.