The STRong lensing Insights into the Dark Energy Survey (STRIDES) 2016 follow-up campaign. II. New quasar lenses from double component fitting.
The STRong lensing Insights into the Dark Energy Survey (STRIDES) 2016 follow-up campaign. II. New quasar lenses from double component fitting.
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STRong 镜头洞察暗能量调查 (STRIDES) 2016 年后续活动。
DOI：
10.1093/mnras/sty2172
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发表时间：
2018
影响因子：
4.8
通讯作者：
Hsueh, J W
中科院分区：
文献类型：
--
作者：
Anguita, T;Schechter, P L;Kuropatkin, N;Morgan, N D;Ostrovski, F;Abramson, L E;Agnello, A;Apostolovski, Y;Fassnacht, C D;Hsueh, J W
我们报告了使用NTT EFOSC，Magellan-IMACS，KECK-ESI和SOAR-SAMI在暗能量调查中发现的34个候选透镜类星体的后续情况。这些候选人被选择的双组分拟合，形态评估和颜色分析的组合。大多数后续系统确实由至少一个类星体图像和13个两个或更多类星体图像组成：两个透镜，四个投影双星和七个几乎相同的类星体对（NIQ）。两个被确认为真正的引力透镜类星体的系统是一个四倍的ats= 1.713和一个双倍的ats= 1.515。这两个系统的透镜建模揭示，这两个系统需要非常小的贡献，从环境中重现的图像配置。然而，在一张四元组的图像中可以观察到小的通量异常。对9个不确定系统（包括7个NIQ）的进一步观测将允许确认（或不确认）它们的引力透镜性质。
We report upon the follow-up of 34 candidate lensed quasars found in the Dark Energy Survey using NTT EFOSC, Magellan-IMACS, KECK-ESI, and SOAR-SAMI. These candidates were selected by a combination of double component fitting, morphological assessment, and colour analysis. Most systems followed up are indeed composed of at least one quasar image and 13 with two or more quasar images: two lenses, four projected binaries, and seven nearly identical quasar pairs (NIQs). The two systems confirmed as genuine gravitationally lensed quasars are one quadruple ats= 1.713 and one double ats= 1.515. Lens modelling of these two systems reveals that both systems require very little contribution from the environment to reproduce the image configuration. Nevertheless, small flux anomalies can be observed in one of the images of the quad. Further observations of nine inconclusive systems (including seven NIQs) will allow to confirm (or not) their gravitational lens nature.
类星体透镜
DOI：
--
发表时间：
2002
期刊：
影响因子：
--
作者：
F. Courbin;P. Saha;P. Schechter
通讯作者：
P. Schechter
影响因子：
4.8
作者：
Bonvin, V.;Courbin, F.;Spiniello, C.
通讯作者：
Spiniello, C.