A refined mass distribution of the cluster MACS J0416.1$-$2403 from a new large set of spectroscopic multiply lensed sources
A refined mass distribution of the cluster MACS J0416.1$-$2403 from a new large set of spectroscopic multiply lensed sources
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来自一组新的大型光谱多透镜源的 MACS J0416.1$-$2403 星团的精确质量分布
DOI：
10.1051/0004-6361/201629297
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发表时间：
2016
期刊：
影响因子：
--
通讯作者：
P. Tozzi
中科院分区：
文献类型：
--
作者：
G. Caminha;C. Grillo;P. Rosati;I. Balestra;A. Mercurio;E. Vanzella;A. Biviano;K. Caputi;C. Delgado;W. Karman;M. Lombardi;M. Meneghetti;B. Sartoris;P. Tozzi
我们利用 VLT 上多单元光谱探测器 (MUSE) 的档案数据报告了哈勃前沿场 (HFF) 星系团 MACS~J0416.1$-$2403 (MACS 0416) 后面 22 个新的多透镜源的光谱确认。结合之前对其他 15 个多重成像源的光谱测量，我们获得了 102 个具有测量红移的安全多重图像样本，这是迄今为止单个强透镜系统中最大的图像。新确认的光源主要是低光度莱曼-$\alpha$发射器，红移范围在[3.08-6.15]内。有了如此大量的安全约束，以及星团核心中星系成员样本的显着改进，我们改进了之前的强透镜模型，并获得了 MACS 0416 预计总质量分布的可靠确定。我们发现了三个核心暗物质晕的证据，增加了这个合并系统已知的复杂性。总质量密度分布以及亚晕群体与之前的工作非常一致。我们使用新的 MUSE 红移更新并公开了之前光谱活动中 MACS 0416 的红移目录。我们还发布了标准 HFF 格式的透镜图（收敛、剪切、放大）。
We report the spectroscopic confirmation of 22 new multiply lensed sources behind the Hubble Frontier Field (HFF) galaxy cluster MACS~J0416.1$-$2403 (MACS 0416), using archival data from the Multi Unit Spectroscopic Explorer (MUSE) on the VLT. Combining with previous spectroscopic measurements of 15 other multiply imaged sources, we obtain a sample of 102 secure multiple images with measured redshifts, the largest to date in a single strong lensing system. The newly confirmed sources are largely low-luminosity Lyman-$\alpha$ emitters with redshift in the range [3.08-6.15]. With such a large number of secure constraints, and a significantly improved sample of galaxy members in the cluster core, we have improved our previous strong lensing model and obtained a robust determination of the projected total mass distribution of MACS 0416. We find evidence of three cored dark-matter halos, adding to the known complexity of this merging system. The total mass density profile, as well as the sub-halo population, are found in good agreement with previous works. We update and make public the redshift catalog of MACS 0416 from our previous spectroscopic campaign with the new MUSE redshifts. We also release lensing maps (convergence, shear, magnification) in the standard HFF format.
哈勃太空望远镜结合强弱透镜分析碰撞样本：质量和放大率模型以及系统不确定性
DOI：
10.1088/0004-637x/801/1/44
发表时间：
2015
期刊：
The Astrophysical Journal
影响因子：
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作者：
A. Zitrin;A. Fabris;J. Merten;P. Melchior;M. Meneghetti;A. Koekemoer;D. Coe;M. Maturi;M. Bartelmann;M. Postman;K. Umetsu;G. Seidel;I. Sendra;T. Broadhurst;I. Balestra;A. Biviano;C. Grillo;A. Mercurio;M. Nonino;P. Rosati;L. Bradley
通讯作者：
L. Bradley
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：
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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
DOI：
10.3847/0067-0049/224/2/33
发表时间：
2015-11
期刊：
The Astrophysical Journal Supplement Series
影响因子：
--
作者：
I. Balestra;A. Mercurio;B. Sartoris;M. Girardi;C. Grillo;M. Nonino;P. Rosati;A. Biviano;S. Ettori;W. Forman;C. Jones;A. Koekemoer;E. Medezinski;J. Merten;G. Ogrean;P. Tozzi;K. Umetsu;E. Vanzella;R. V. Weeren;A. Zitrin;M. Annunziatella;G. Caminha;T. Broadhurst;D. Coe;M. Donahue;A. Fritz;B. Frye;D. Kelson;M. Lombardi;C. Maier;M. Meneghetti;A. Monna;M. Postman;M. Scodeggio;S. Seitz;B. Ziegler
通讯作者：
I. Balestra;A. Mercurio;B. Sartoris;M. Girardi;C. Grillo;M. Nonino;P. Rosati;A. Biviano;S. Ettori;W. Forman;C. Jones;A. Koekemoer;E. Medezinski;J. Merten;G. Ogrean;P. Tozzi;K. Umetsu;E. Vanzella;R. V. Weeren;A. Zitrin;M. Annunziatella;G. Caminha;T. Broadhurst;D. Coe;M. Donahue;A. Fritz;B. Frye;D. Kelson;M. Lombardi;C. Maier;M. Meneghetti;A. Monna;M. Postman;M. Scodeggio;S. Seitz;B. Ziegler