论文标题
关于光学和近红外乳清外背景光的起源
On the origin of the optical and near-infrared extragalactic background light
论文作者
论文摘要
在光学和近红外背景光中，已经报道了已知背景上的亮度和波动。为了描绘其起源，对最深的光学图像进行了波动分析，从而发现平坦的波动降至0.2 arcsec，这远大于星系的预期。从检测到的波动获得的天空亮度比星系的集成光更亮几倍。这些发现需要一些新对象。作为候选者，提出了表面数密度迅速增加到微弱端的微弱的紧凑物体（FCO）。 FCO非常紧凑，并显示出奇特的光谱，红外过量。如果FCO引起过多的亮度和波动，则表面数密度在1平方ARCSEC中达到2.6E3。伽玛射线观察结果要求FCO的红移小于0.1，其中包括丢失的Baryons。 M/L非常低的表示FCO由与黑洞相关的重力提供动力。
In optical and near-infrared background light, excess brightness and fluctuation over the known backgrounds have been reported. To delineate their origin, a fluctuation analysis of the deepest optical images was performed, leading to the detection of a flat fluctuation down to 0.2 arcsec, which is much larger than that expected for galaxies. The sky brightness obtained from the detected fluctuation is a few times brighter than the integrated light of the galaxies. These findings require some new objects. As a candidate, faint compact objects (FCOs) whose surface number density rapidly increases to the faint end were proposed. FCOs are very compact and show peculiar spectra with infrared excess. If FCOs cause the excess brightness and fluctuation, the surface number density reaches 2.6e3 in 1 square arcsec. Gamma ray observations require the redshift of FCOs to be less than 0.1 with FCOs consisting of missing baryons. A very low M/L indicates that FCOs are powered by gravitational energy associated with black holes.
