Ly $α$森林吸收线的Jeans平滑
Jeans smoothing of the Ly$α$ forest absorption lines
摘要：
我们调查的贡献的牛仔裤平滑的最小宽度的Ly $α$森林线，并讨论如何占这个额外的扩大影响星系际物质状态方程的推断参数。我们估计了状态方程的幂律指数$γ$、平均密度下的温度$T_0$和4个红移区间内的氢光电离率$Γ$。此外，在每个箱中，我们得到的规模参数$f_{\rm J}$，它设置的牛仔裤长度和吸收体云的特征物理尺寸之间的关系的上限。
英文摘要：
We investigate a contribution of the Jeans smoothing to the minimal width of Ly$α$ forest lines and discuss how the accounting for this additional broadening affects the inferred parameters of the intergalactic matter equation of state. We estimate a power-law index $γ$ of the equation of state, a temperature at the mean density $T_0$ and a hydrogen photoionization rate $Γ$ within 4 redshift bins. Furthermore, in each bin we obtain an upper limit on the scale-parameter $f_{\rm J}$, which sets the relation between the Jeans length and the characteristic physical size of the absorber clouds.
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