Please use this identifier to cite or link to this item:
http://hdl.handle.net/20.500.12386/24265
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Xu, Bingxiao | en_US |
dc.contributor.author | Postman, Marc | en_US |
dc.contributor.author | MENEGHETTI, MASSIMO | en_US |
dc.contributor.author | Seitz, Stella | en_US |
dc.contributor.author | Zitrin, Adi | en_US |
dc.contributor.author | MERTEN, JULIAN | en_US |
dc.contributor.author | Maoz, Dani | en_US |
dc.contributor.author | Frye, Brenda | en_US |
dc.contributor.author | Umetsu, Keiichi | en_US |
dc.contributor.author | Zheng, Wei | en_US |
dc.contributor.author | Bradley, Larry | en_US |
dc.contributor.author | Vega, Jesus | en_US |
dc.contributor.author | Koekemoer, Anton | en_US |
dc.date.accessioned | 2020-04-28T08:24:43Z | - |
dc.date.available | 2020-04-28T08:24:43Z | - |
dc.date.issued | 2016 | en_US |
dc.identifier.issn | 0004-637X | en_US |
dc.identifier.uri | http://hdl.handle.net/20.500.12386/24265 | - |
dc.description.abstract | We developed an algorithm to find and characterize gravitationally lensed galaxies (arcs) to perform a comparison of the observed and simulated arc abundance. Observations are from the Cluster Lensing And Supernova survey with Hubble (CLASH). Simulated CLASH images are created using the MOKA package and also clusters selected from the high-resolution, hydrodynamical simulations, MUSIC, over the same mass and redshift range as the CLASH sample. The algorithm's arc elongation accuracy, completeness, and false positive rate are determined and used to compute an estimate of the true arc abundance. We derive a lensing efficiency of 4 ± 1 arcs (with length ≥6″ and length-to-width ratio ≥7) per cluster for the X-ray-selected CLASH sample, 4 ± 1 arcs per cluster for the MOKA-simulated sample, and 3 ± 1 arcs per cluster for the MUSIC-simulated sample. The observed and simulated arc statistics are in full agreement. We measure the photometric redshifts of all detected arcs and find a median redshift z<SUB>s</SUB> = 1.9 with 33% of the detected arcs having z<SUB>s</SUB> > 3. We find that the arc abundance does not depend strongly on the source redshift distribution but is sensitive to the mass distribution of the dark matter halos (e.g., the c-M relation). Our results show that consistency between the observed and simulated distributions of lensed arc sizes and axial ratios can be achieved by using cluster-lensing simulations that are carefully matched to the selection criteria used in the observations. | en_US |
dc.language.iso | eng | en_US |
dc.title | The Detection and Statistics of Giant Arcs behind CLASH Clusters | en_US |
dc.type | Article | - |
dc.identifier.doi | 10.3847/0004-637X/817/2/85 | en_US |
dc.identifier.scopus | 2-s2.0-84957894599 | en_US |
dc.identifier.isi | 000369437900002 | en_US |
dc.identifier.url | https://iopscience.iop.org/article/10.3847/0004-637X/817/2/85 | en_US |
dc.relation.medium | STAMPA | en_US |
dc.relation.volume | 817 | en_US |
dc.relation.issue | 2 | en_US |
dc.relation.firstpage | 85 | en_US |
dc.type.referee | REF_1 | en_US |
dc.description.international | sì | en_US |
dc.relation.scientificsector | FIS/05 - ASTRONOMIA E ASTROFISICA | en_US |
dc.relation.journal | THE ASTROPHYSICAL JOURNAL | en_US |
dc.type.miur | 262 Articolo in rivista | - |
dc.identifier.adsbibcode | 2016ApJ...817...85X | en_US |
dc.relation.ercsector | Scienze Fisiche Settori ERC (ERC) di riferimento::PE9 Universe sciences: astro-physics/chemistry/biology; solar systems; stellar, galactic and extragalactic astronomy, planetary systems, cosmology, space science, instrumentation | en_US |
dc.description.apc | no | en_US |
dc.description.oa | 1 – prodotto con file in versione Open Access (allegherò il file al passo 5-Carica) | en_US |
item.cerifentitytype | Publications | - |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
item.fulltext | With Fulltext | - |
item.grantfulltext | open | - |
item.languageiso639-1 | en | - |
item.openairetype | Article | - |
crisitem.journal.journalissn | 0004-637X | - |
crisitem.journal.ance | E016252 | - |
crisitem.author.dept | OAS Bologna | - |
crisitem.author.orcid | 0000-0003-1225-7084 | - |
Appears in Collections: | 1.01 Articoli in rivista |
Files in This Item:
File | Description | Size | Format | |
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Xu_2016_ApJ_817_85.pdf | PDF editoriale | 5.13 MB | Adobe PDF | View/Open |
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