Mass Modeling of Frontier Fields Cluster MACS J1149.5+2223 Using Strong and Weak Lensing

Mass Modeling of Frontier Fields Cluster MACS J1149.5+2223 Using Strong and Weak Lensing
复制标题

使用强透镜和弱透镜对前沿场簇 MACS J1149.5 2223 进行质量建模

DOI:
--
复制
发表时间:
2018
期刊:
影响因子:
--
通讯作者:
C. Mason
C. Mason
中科院分区:
--
文献类型:
--
作者:
E. Finney;M. Bradavc;Kuang;A. Hoag;T. Morishita;T. Schrabback;T. Treu;K. Schmidt;B. Lemaux;Xin Wang;C. Mason

文献摘要

参考文献

被引文献

相似文献

我们使用超深哈勃前沿场成像数据以及 HST 棱镜和甚大望远镜 (VLT)/MUSE 光谱数据的光谱红移提出了 MACS J1149.5+2223 的引力透镜模型。我们使用 38 个多重图像(13 个来源)和 608 个弱透镜星系,以及超新星雷夫斯达尔所在星系中 31 个恒星形成区域的 100 个多重图像来创建总质量图。我们发现与 HST 视野内的一系列最新模型非常一致。我们展示了预计恒星质量与总质量 (f⋆) 之比的地图,并发现该星团的恒星质量分数在主 BCG 上达到峰值。在 0.3 Mpc 半径内取平均值,我们得到 的值,与集群环境中该比率的其他最新结果一致,尽管主要由于 IMF 的选择而导致较大的全局误差(高达 δf⋆ = 0.005)。我们将该星团的 f⋆ 值和恒星形成效率的测量值与文献中研究的其他哈勃前沿场星团进行比较,发现 MACS1149 的恒星质量分数比其他星团更高,但具有大质量星团典型的恒星形成效率。
We present a gravitational-lensing model of MACS J1149.5+2223 using ultra-deep Hubble Frontier Fields imaging data and spectroscopic redshifts from HST grism and Very Large Telescope (VLT)/MUSE spectroscopic data. We create total mass maps using 38 multiple images (13 sources) and 608 weak-lensing galaxies, as well as 100 multiple images of 31 star-forming regions in the galaxy that hosts supernova Refsdal. We find good agreement with a range of recent models within the HST field of view. We present a map of the ratio of projected stellar mass to total mass (f⋆) and find that the stellar mass fraction for this cluster peaks on the primary BCG. Averaging within a radius of 0.3 Mpc, we obtain a value of , consistent with other recent results for this ratio in cluster environments, though with a large global error (up to δf⋆ = 0.005) primarily due to the choice of IMF. We compare values of f⋆ and measures of star formation efficiency for this cluster to other Hubble Frontier Fields clusters studied in the literature, finding that MACS1149 has a higher stellar mass fraction than these other clusters but a star formation efficiency typical of massive clusters.
DOI: 10.1111/j.1365-2966.2009.15034.x
发表时间: 2008-08
影响因子: 4.8
作者:
K. Dolag;S. Borgani;S. Borgani;S. Borgani;G. Murante;V. Springel
通讯作者: K. Dolag;S. Borgani;S. Borgani;S. Borgani;G. Murante;V. Springel
DOI: 10.1093/mnras/stt1965
发表时间: 2013-09
影响因子: 4.8
作者:
J. M. Budzynski;Sergey E. Koposov;I. McCarthy;V. Belokurov
通讯作者: J. M. Budzynski;Sergey E. Koposov;I. McCarthy;V. Belokurov
DOI: 10.1088/0067-0049/199/2/25
发表时间: 2011-06
期刊: The Astrophysical Journal Supplement Series
影响因子: --
作者:
M. Postman;D. Coe;N. Benı́tez;L. Bradley;T. Broadhurst;M. Donahue;H. Ford;O. Graur;G. Graves-G.-G
通讯作者: M. Postman;D. Coe;N. Benı́tez;L. Bradley;T. Broadhurst;M. Donahue;H. Ford;O. Graur;G. Graves-G.-G
KMOS 透镜放大光谱巡天 (KLASS) 的初步结果:宇宙正午透镜星系的运动学
DOI: --
发表时间: 2016
期刊: ArXiv e-prints
影响因子: --
作者:
Mason Charlotte A.
通讯作者: Mason Charlotte A.