论文标题
火星：一种新的最大熵登记的强透镜质量重建方法
MARS: A New Maximum Entropy-Regularized Strong Lensing Mass Reconstruction Method
论文作者
论文摘要
自由形式的强透镜（SL）质量重建通常遭受过度拟合，这表现为假阳性的小规模波动。我们提出了一种新的自由形式的最大渗透重建（$ {\ tt Mars} $）方法，而没有假设光线质量质量（LTM）。 $ {\ tt Mars} $算法使我们能够在源位置上获得极好的收敛〜0.001 $“ $” $，最大程度地减少潮流的小尺度波动，并独立于初始条件提供了准唯一的解决方案。我们的方法与公共可用的SLTH数据$ {\ tt fffff-sim and restion reforsion restion conttt $ {\ tt ff-sim} $ {通过在文献中发布的最佳表现的LTM方法，这些方法已被证明超过了现有的自由形式的方法，而是在径向质量概况重建方面。在最明亮的集群星系和较弱的次级光环上，也与SL田里的明亮集群成员约160 kpc。 $ r_s = 538^{+90} _ { - 100} $ kpc，我们没有发现A1689被过度集中的证据。
Free-form strong-lensing (SL) mass reconstructions typically suffer from overfitting, which manifest itself as false-positive small-scale fluctuations. We present a new free-form MAximum-entropy ReconStruction (${\tt MARS}$) method without the assumption that light traces mass (LTM). The ${\tt MARS}$ algorithm enables us to achieve excellent convergence in source positions ~0.001$"$, minimize spurious small-scale fluctuations, and provide a quasi-unique solution independently of initial conditions. Our method is tested with the publicly available synthetic SL data ${\tt FF-SIMS}$ and the comparison with the truth shows that the reconstruction quality is on a par with those of the best-performing LTM methods published in the literature, which have been demonstrated to outperform the existing free-form methods. In terms of the radial mass profile reconstruction, we achieve $<1$% agreements with the truth for the regions constrained by the multiple images. Finally, we apply ${\tt MARS}$ to A1689 and find that the cluster mass in the SL regime is dominated by the primary halo centered on the brightest cluster galaxy and the weaker secondary halo also coincident with the bright cluster member ~160 kpc northeast. Within the SL field, the A1689 radial profile is well-described by a Navarro-Frenk-White (NFW) profile with $c_{200}=5.53\pm0.77$ and $r_s=538^{+90}_{-100}$ kpc and we find no evidence that A1689 is over-concentrated.
