Source population synthesis and the Galactic diffuse gamma-ray emission
Source population synthesis and the Galactic diffuse gamma-ray emission
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源群体合成和银河漫射伽马射线发射
DOI：
10.1007/s10509-007-9480-1
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发表时间：
2006
影响因子：
1.9
通讯作者：
A. Strong
中科院分区：
文献类型：
--
作者：
A. Strong
利用粒子数合成方法研究了未分辨源对EGRET观测到的银河系脊辐射的贡献。在低纬和高纬地区，将合成源计数与第三个EGRET目录进行了比较。对于类脉冲星，5-10%的100 MeV以上的辐射来自EGRET阈值以下的源。一个更陡峭的光度函数可以将其增加到20%，而不会违反EGRET源统计。亮度较低的群体可以产生更高的值而不被检测到。由于未解析的源光谱与星际光谱不同，它可以解释观测到的MeV和GeV超出预测的情况，我们给出了一个明确的例子来说明这是如何工作的。
Population synthesis is used to study the contribution from unresolved sources to the Galactic ridge emission measured by EGRET. Synthesized source counts are compared with the 3rd EGRET catalogue at low and high latitudes. For pulsar-like populations, 5–10% of the emission >100 MeV comes from sources below the EGRET threshold. A steeper luminosity function can increase this to 20% without violating EGRET source statistics. Less luminous populations can produce much higher values without being detected. Since the unresolved source spectrum is different from the interstellar spectrum, it could provide an explanation of the observed MeV and GeV excesses above the predictions, and we give an explicit example of how this could work.
影响因子：
6.5
作者：
Kuiper, L;Hermsen, W;McConnell, ML
通讯作者：
McConnell, ML