论文标题
第一个JWST Galaxy群集SMACS J0723.3-7327的HST强镜模型
HST strong-lensing model for the first JWST galaxy cluster SMACS J0723.3-7327
论文作者
论文摘要
On 2022 July 8, NASA shared$^{a}$ the list of five public showcase targets which have been observed with the new \textit{James Webb Space Telescope} (JWST), and whose data are expected to be released to the public around Tuesday, July 12. One of these targets is the galaxy cluster SMACS~J0723.3-7327 which acts as a gravitational lens and was recently imaged with \ textIt {retionization镜头群集调查} program（文物）的框架中的\ textit {Hubble Space望远镜}。为了通过即将发布的JWST数据来促进社区的研究，我们在这里发布了SMACS0723的镜头模型，包括质量密度和放大图。我们在HST成像中确定了五个多图像家族，其中三个会员资格和红移由公共光谱数据确保。对于其余两个系统，我们依靠可靠的光度红移估计值。我们在这里使用\ texttt {light-traces-mass}镜头建模方法，该方法补充了文物网站和其他地方已经可用的参数模型，因此有助于跨越代表性的解决方案范围。可以通过$^{B} $的链接访问此处发布的新模型。当纳入JWST数据时，检查质量模型的多少和哪些特性会改变和改进会很有趣。
On 2022 July 8, NASA shared$^{a}$ the list of five public showcase targets which have been observed with the new \textit{James Webb Space Telescope} (JWST), and whose data are expected to be released to the public around Tuesday, July 12. One of these targets is the galaxy cluster SMACS~J0723.3-7327 which acts as a gravitational lens and was recently imaged with the \textit{Hubble Space Telescope} in the framework of the \textit{Reionization Lensing Cluster Survey} program (RELICS). To facilitate studies by the community with the upcoming JWST data, we publish here a lens model for SMACS0723 -- including mass-density and magnification maps. We identify in the HST imaging five multiple-image families for three of which membership and redshift are secured by public spectroscopic data. For the remaining two systems we rely on robust photometric redshift estimates. We use here the \texttt{Light-Traces-Mass} lens modeling method, which complements the parametric models already available on the RELICS website and elsewhere, and thus helps span a representative range of solutions. The new models published here can be accessed via a link given below$^{b}$. It will be interesting to examine by how much and which properties of the mass models change, and improve, when JWST data are incorporated.
