论文标题
Lenswatch：I。对强镜IA Supernova 2022QMX（“ Sn Zwicky”）的HST观测和约束。
LensWatch: I. Resolved HST Observations and Constraints on the Strongly-Lensed Type Ia Supernova 2022qmx ("SN Zwicky")
论文作者
论文摘要
通过重力镜头倍增的超新星（SNE）是宇宙学的罕见且有力的探针。每次检测都是一个机会，可以通过即将到来的Vera C. Rubin Persvatory和Nancy Grace Roman Space望远镜通过数量级来开发所需的关键工具和方法。最新的发现是$ z = 0.3544 $的四倍成像IA SN 2022QMX（aka，“ sn zwicky”）。 Sn Zwicky是由Zwicky瞬态设施（ZTF）在空间未解决的数据中发现的。在这里，我们介绍了SN Zwicky的后续哈勃太空望远镜观测值，这是多周期“ Lenswatch”程序的第一个。我们测量了Sn Zwicky的四个图像中的每个图像中的每个图像，它们在三个WFC3/UVIS滤波器（F475W，F625W，F814W）中解析，但未解决WFC3/ir〜F160W，并介绍了使用各种独立镜头模型模型方法的镜头系统分析的。我们发现镜头模型预测时间延迟（$ \ Lessim1 $ Day）之间的一致性，并以HST颜色的单个时期（$ \ lyssim3.5 $天）估计延迟，包括色素微透析（$ \ sim1 $ -1.5美元的$ 1.5 $ days）的不确定性。我们的镜头模型会收敛到$θ_e=（0.168^{+0.009} _ { - 0.005}）\ prime \ prime $的爱因斯坦半径，在镜头SN系统中最小但最小。 Sn Zwicky的“标准蜡烛”性质提供了放大估计，独立于镜头建模的范围比$ \ sim1.7^{+0.8} _ { - 0.6} $ mag和$ \ sim0.9^{+0.8} _ {+0.8} _ { - 0.6} _ { - 0.6} $ substiment的两个图像和/图像的subsimation和/image of Imagimentible的范围更明亮，并提出了四个图像，并且/图像均超过了//图像，并且/iptumentiment of Imagimentiment和/aigrimentiment的图像超过了，并且//图像均超出了您的图像。型号。
Supernovae (SNe) that have been multiply-imaged by gravitational lensing are rare and powerful probes for cosmology. Each detection is an opportunity to develop the critical tools and methodologies needed as the sample of lensed SNe increases by orders of magnitude with the upcoming Vera C. Rubin Observatory and Nancy Grace Roman Space Telescope. The latest such discovery is of the quadruply-imaged Type Ia SN 2022qmx (aka, "SN Zwicky") at $z=0.3544$. SN Zwicky was discovered by the Zwicky Transient Facility (ZTF) in spatially unresolved data. Here we present follow-up Hubble Space Telescope observations of SN Zwicky, the first from the multi-cycle "LensWatch" program. We measure photometry for each of the four images of SN Zwicky, which are resolved in three WFC3/UVIS filters (F475W, F625W, F814W) but unresolved with WFC3/IR~F160W, and present an analysis of the lensing system using a variety of independent lens modeling methods. We find consistency between lens model predicted time delays ($\lesssim1$ day), and delays estimated with the single epoch of HST colors ($\lesssim3.5$ days), including the uncertainty from chromatic microlensing ($\sim1$-$1.5$ days). Our lens models converge to an Einstein radius of $θ_E=(0.168^{+0.009}_{-0.005})\prime\prime$, the smallest yet seen in a lensed SN system. The "standard candle" nature of SN Zwicky provides magnification estimates independent of the lens modeling that are brighter than predicted by $\sim1.7^{+0.8}_{-0.6}$mag and $\sim0.9^{+0.8}_{-0.6}$mag for two of the four images, suggesting significant microlensing and/or additional substructure beyond the flexibility of our image-position mass models.
