extragalactic background light

短语

别名

EBL

释义与例句

n.
  1. 1.

    All the accumulated radiation in the universe due to star formation processes, plus a contribution from active galactic nuclei (AGNs).

    不可数

    Ground-based observatories have been collecting 0.2 - 20 TeV gamma rays from blazars for about twenty years. These gamma rays can experience absorption along the line of sight due to interactions with the extragalactic background light (EBL). In this paper, we show that the gamma-ray optical depth can be reduced to the convolution product of an EBL kernel with the EBL intensity, assuming a particular form for the EBL evolution

词源

From extragalactic + background + light.

来源：wiktionary