论文标题
调用病毒定理以了解（干）合并对$ m _ {\ rm bh} $ - $σ$关系的影响
Invoking the virial theorem to understand the impact of (dry) mergers on the $M_{\rm bh}$-$σ$ relation
论文作者
论文摘要
虽然干合并可以在（黑洞质量，$ m _ {\ rm bh} $）中产生相当大的散布在这里解释为什么关于$ m _ {\ rm bh} $ - （速度分散，$σ$）的散布在面对此类合并时的关系仍然很低。它的小散射被认为是活性银河核（AGN）反馈的证据。但是，可以表明银河合并也起着重要作用。两个S0星系与$ M _ {\ rm *，sph} \ sim10^{11} $ m $ _ \ odot $在$ m _ {\ rm bh} $ -ch $ 5中的斜坡上沿坡度$ \ sim $ 5的坡度前进的主要合并。但是，一个主要的E $+$ e银河合并合并将系统（稍微）沿着斜坡为$ \ sim $ 9的轨迹移动，而与$ M _ {\ rm *，sph} \ sim10^{10} {10} $ m $ m $ _ \ odot $移动的$ m _ {\ rm *，sph} \ sim10^\ sim10^\ sph} \ sph} \ sim10^{10} $ c $ c $ 3的合并是$ moves $ c的，这会在$ m _ {\ rm bh} $ - $σ$图中为E（和ES，E）星系产生更陡峭的分布，此处据报道，与SLOPE的SLOPE为0.27 $ \ pm $ 0.91，与SLOPE的斜率为5.68 $ \ pm \ pm 0.60 $ 0.60相比。该结果构成了与丝绸和里斯的类似AGN反馈模型的重要补充，从而提供了Galaxy/（Black Hole）共同进化的更完整的图片。它对纳米赫兹引力波研究也具有重要意义。简略。
While dry mergers can produce considerable scatter in the (black hole mass, $M_{\rm bh}$)-(spheroid stellar mass, $M_{\rm *,sph}$) and $M_{\rm bh}$-(spheroid half-light radius, $R_{\rm e,sph}$) diagrams, the virial theorem is used here to explain why the scatter about the $M_{\rm bh}$-(velocity dispersion, $σ$) relation remains low in the face of such mergers. Its small scatter has been claimed as evidence of feedback from active galactic nuclei (AGNs). However, it is shown that galaxy mergers also play a significant role. The major merger of two S0 galaxies with $M_{\rm *,sph}\sim10^{11}$ M$_\odot$ advances a system along a slope of $\sim$5 in the $M_{\rm bh}$-$σ$ diagram. However, a major E$+$E galaxy merger moves a system (slightly) along a trajectory with a slope of $\sim$9, while mergers of lower-mass S0 galaxies with $M_{\rm *,sph}\sim10^{10}$ M$_\odot$ move (slightly) along a trajectory with a slope of $\sim$3. This produces a steeper distribution for the E (and Es,e) galaxies in the $M_{\rm bh}$-$σ$ diagram, reported here to have a slope of 7.27$\pm$0.91, compared to the S0 galaxies which have a slope of 5.68$\pm$0.60. This result forms an important complement to the AGN feedback models like that from Silk and Rees, providing a more complete picture of galaxy/(black hole) coevolution. It also has important implications for nanohertz gravitational wave research. Abridged.
