NAOC Open IR
Ridges in the Dark Energy Survey for cosmic trough identification
Moews, Ben1; Schmitz, Morgan A.2; Lawler, Andrew J.3; Zuntz, Joe1; Malz, Alex, I4; de Souza, Rafael S.5; Vilalta, Ricardo6; Krone-Martins, Alberto7,8; Ishida, Emille E. O.9
2021
Source PublicationMONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
ISSN0035-8711
Volume500Issue:1Pages:859-870
AbstractCosmic voids and their corresponding redshift-projected mass densities, known as troughs, play an important role in our attempt to model the large-scale structure of the Universe. Understanding these structures enables us to compare the standard model with alternative cosmologies, constrain the dark energy equation of state, and distinguish between different gravitational theories. In this paper, we extend the subspace-constrained mean shift algorithm, a recently introduced method to estimate density ridges, and apply it to 2D weak lensing mass density maps from the Dark Energy Survey Y1 data release to identify curvilinear filamentary structures. We compare the obtained ridges with previous approaches to extract trough structure in the same data, and apply curvelets as an alternative wavelet-based method to constrain densities. We then invoke the Wasserstein distance between noisy and noiseless simulations to validate the denoising capabilities of our method. Our results demonstrate the viability of ridge estimation as a precursor for denoising weak lensing observables to recover the large-scale structure, paving the way for a more versatile and effective search for troughs.
Keywordgravitational lensing: weak methods: data analysis methods: statistical large-scale structure of Universe
Funding OrganizationCNRS ; CNRS ; Max Planck Society ; Max Planck Society ; Alexander von Humboldt Foundation ; Alexander von Humboldt Foundation ; Portuguese Fundacao para a Ciencia e a Tecnologia (FCT) ; Portuguese Fundacao para a Ciencia e a Tecnologia (FCT) ; Portuguese Strategic Programme for CENTRA ; Portuguese Strategic Programme for CENTRA ; CNRS ; CNRS ; Max Planck Society ; Max Planck Society ; Alexander von Humboldt Foundation ; Alexander von Humboldt Foundation ; Portuguese Fundacao para a Ciencia e a Tecnologia (FCT) ; Portuguese Fundacao para a Ciencia e a Tecnologia (FCT) ; Portuguese Strategic Programme for CENTRA ; Portuguese Strategic Programme for CENTRA ; CNRS ; CNRS ; Max Planck Society ; Max Planck Society ; Alexander von Humboldt Foundation ; Alexander von Humboldt Foundation ; Portuguese Fundacao para a Ciencia e a Tecnologia (FCT) ; Portuguese Fundacao para a Ciencia e a Tecnologia (FCT) ; Portuguese Strategic Programme for CENTRA ; Portuguese Strategic Programme for CENTRA ; CNRS ; CNRS ; Max Planck Society ; Max Planck Society ; Alexander von Humboldt Foundation ; Alexander von Humboldt Foundation ; Portuguese Fundacao para a Ciencia e a Tecnologia (FCT) ; Portuguese Fundacao para a Ciencia e a Tecnologia (FCT) ; Portuguese Strategic Programme for CENTRA ; Portuguese Strategic Programme for CENTRA
DOI10.1093/mnras/staa3204
WOS KeywordDIGITAL SKY SURVEY ; WEB RECONSTRUCTION ; GALAXY TROUGHS ; VOIDS ; FILAMENT ; EVOLUTION ; MATTER ; CLUSTERS ; GRAVITY ; SIMULATIONS
Language英语
Funding ProjectCNRS ; Max Planck Society ; Alexander von Humboldt Foundation ; Portuguese Fundacao para a Ciencia e a Tecnologia (FCT)[SFRH/BPD/74697/2010] ; Portuguese Fundacao para a Ciencia e a Tecnologia (FCT)[PTDC/FIS-AST/31546/2017] ; Portuguese Strategic Programme for CENTRA[UID/FIS/00099/2013]
Funding OrganizationCNRS ; CNRS ; Max Planck Society ; Max Planck Society ; Alexander von Humboldt Foundation ; Alexander von Humboldt Foundation ; Portuguese Fundacao para a Ciencia e a Tecnologia (FCT) ; Portuguese Fundacao para a Ciencia e a Tecnologia (FCT) ; Portuguese Strategic Programme for CENTRA ; Portuguese Strategic Programme for CENTRA ; CNRS ; CNRS ; Max Planck Society ; Max Planck Society ; Alexander von Humboldt Foundation ; Alexander von Humboldt Foundation ; Portuguese Fundacao para a Ciencia e a Tecnologia (FCT) ; Portuguese Fundacao para a Ciencia e a Tecnologia (FCT) ; Portuguese Strategic Programme for CENTRA ; Portuguese Strategic Programme for CENTRA ; CNRS ; CNRS ; Max Planck Society ; Max Planck Society ; Alexander von Humboldt Foundation ; Alexander von Humboldt Foundation ; Portuguese Fundacao para a Ciencia e a Tecnologia (FCT) ; Portuguese Fundacao para a Ciencia e a Tecnologia (FCT) ; Portuguese Strategic Programme for CENTRA ; Portuguese Strategic Programme for CENTRA ; CNRS ; CNRS ; Max Planck Society ; Max Planck Society ; Alexander von Humboldt Foundation ; Alexander von Humboldt Foundation ; Portuguese Fundacao para a Ciencia e a Tecnologia (FCT) ; Portuguese Fundacao para a Ciencia e a Tecnologia (FCT) ; Portuguese Strategic Programme for CENTRA ; Portuguese Strategic Programme for CENTRA
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000599134600062
PublisherOXFORD UNIV PRESS
Citation statistics
Document Type期刊论文
Identifierhttp://ir.bao.ac.cn/handle/114a11/80225
Collection中国科学院国家天文台
Corresponding AuthorMoews, Ben
Affiliation1.Univ Edinburgh, Inst Astron, Royal Observ, Edinburgh EH9 3HJ, Midlothian, Scotland
2.Princeton Univ, Dept Astrophys Sci, 4 Ivy Ln, Princeton, NJ 08544 USA
3.Baylor Univ, Dept Stat, One Bear Pl 97140, Waco, TX 76798 USA
4.Ruhr Univ Bochum, German Ctr Cosmol Lensing, Astron Inst, Univ Str 150, D-44801 Bochum, Germany
5.Chinese Acad Sci, Shanghai Astron Observ, Key Lab Res Galaxies & Cosmol, 80 Nandan Rd, Shanghai 200030, Peoples R China
6.Univ Houston, Dept Comp Sci, 4800 Calhoun Rd, Houston, TX 77004 USA
7.Univ Calif Irvine, Donald Bren Sch Informat & Comp Sci, Irvine, CA 92697 USA
8.Univ Lisbon, Fac Ciencias, CENTRA SIM, Ed C8, P-1749016 Lisbon, Portugal
9.Univ Clermont Auvergne, LPC, IN2P3, CNRS, F-63000 Clermont Ferrand, France
Recommended Citation
GB/T 7714
Moews, Ben,Schmitz, Morgan A.,Lawler, Andrew J.,et al. Ridges in the Dark Energy Survey for cosmic trough identification[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2021,500(1):859-870.
APA Moews, Ben.,Schmitz, Morgan A..,Lawler, Andrew J..,Zuntz, Joe.,Malz, Alex, I.,...&Ishida, Emille E. O..(2021).Ridges in the Dark Energy Survey for cosmic trough identification.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,500(1),859-870.
MLA Moews, Ben,et al."Ridges in the Dark Energy Survey for cosmic trough identification".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 500.1(2021):859-870.
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