Please use this identifier to cite or link to this item:
http://hdl.handle.net/20.500.12386/25864
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Formicola, I. | en_US |
dc.contributor.author | RADOVICH, MARIO | en_US |
dc.contributor.author | MENEGHETTI, MASSIMO | en_US |
dc.contributor.author | Mazzotta, P. | en_US |
dc.contributor.author | GRADO, ANIELLO | en_US |
dc.contributor.author | GIOCOLI, Carlo | en_US |
dc.date.accessioned | 2020-06-01T15:43:29Z | - |
dc.date.available | 2020-06-01T15:43:29Z | - |
dc.date.issued | 2016 | en_US |
dc.identifier.issn | 0035-8711 | en_US |
dc.identifier.uri | http://hdl.handle.net/20.500.12386/25864 | - |
dc.description.abstract | In this paper, we present a new method to select the faint, background galaxies used to derive the mass of galaxy clusters by weak lensing. The method is based on the simultaneous analysis of the shear signal, that should be consistent with zero for the foreground, unlensed galaxies, and of the colours of the galaxies: photometric data from the COSMic evOlution Survey are used to train the colour selection. In order to validate this methodology, we test it against a set of state-of-the-art image simulations of mock galaxy clusters in different redshift [0.23-0.45] and mass [0.5-1.55 × 10<SUP>15</SUP> M<SUB>☉</SUB>] ranges, mimicking medium-deep multicolour imaging observations [e.g. Subaru, Large Binocular Telescope]. The performance of our method in terms of contamination by unlensed sources is comparable to a selection based on photometric redshifts, which however requires a good spectral coverage and is thus much more observationally demanding. The application of our method to simulations gives an average ratio between estimated and true masses of ∼0.98 ± 0.09. As a further test, we finally apply our method to real data, and compare our results with other weak-lensing mass estimates in the literature: for this purpose, we choose the cluster Abell 2219 (z = 0.228), for which multiband (BVRi) data are publicly available. | en_US |
dc.language.iso | eng | en_US |
dc.title | Selecting background galaxies in weak-lensing analysis of galaxy clusters | en_US |
dc.type | Article | - |
dc.identifier.doi | 10.1093/mnras/stw493 | en_US |
dc.identifier.scopus | 2-s2.0-84964781157 | en_US |
dc.identifier.isi | 000375799000037 | en_US |
dc.identifier.url | https://academic.oup.com/mnras/article/458/3/2776/2589323 | en_US |
dc.relation.medium | STAMPA | en_US |
dc.relation.volume | 458 | en_US |
dc.relation.issue | 3 | en_US |
dc.relation.firstpage | 2776 | en_US |
dc.relation.lastpage | 2792 | en_US |
dc.relation.numberofpages | 17 | en_US |
dc.type.referee | REF_1 | en_US |
dc.description.numberofauthors | 6 | en_US |
dc.description.international | no | en_US |
dc.contributor.country | ITA | en_US |
dc.contributor.country | FRA | en_US |
dc.relation.scientificsector | FIS/05 - ASTRONOMIA E ASTROFISICA | en_US |
dc.relation.journal | MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | en_US |
dc.type.miur | 262 Articolo in rivista | en_US |
dc.identifier.adsbibcode | 2016MNRAS.458.2776F | en_US |
dc.relation.fund | FP7 | en_US |
dc.relation.ercsector | ERC sectors::Physical Sciences and Engineering::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 (allegare il file al passo 5-Carica) | en_US |
local.message.claim | 2023-02-08T14:31:16.973+0100|||rp09338|||submit_approve|||dc_contributor_author|||None | * |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
item.openairetype | Article | - |
item.languageiso639-1 | en | - |
item.cerifentitytype | Publications | - |
item.grantfulltext | open | - |
item.fulltext | With Fulltext | - |
crisitem.author.dept | O.A. Padova | - |
crisitem.author.dept | OAS Bologna | - |
crisitem.author.dept | O.A. Capodimonte | - |
crisitem.author.dept | OAS Bologna | - |
crisitem.author.orcid | 0000-0002-3585-866X | - |
crisitem.author.orcid | 0000-0003-1225-7084 | - |
crisitem.author.orcid | 0000-0002-0501-8256 | - |
crisitem.author.orcid | 0000-0002-9590-7961 | - |
crisitem.journal.journalissn | 0035-8711 | - |
crisitem.journal.ance | E112946 | - |
Appears in Collections: | 1.01 Articoli in rivista |
Files in This Item:
File | Description | Size | Format | |
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stw493.pdf | 2.94 MB | Adobe PDF | View/Open |
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