Please use this identifier to cite or link to this item:
http://hdl.handle.net/20.500.12386/26556
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Sereno, Mauro | en_US |
dc.contributor.author | ETTORI, STEFANO | en_US |
dc.date.accessioned | 2020-07-22T05:36:04Z | - |
dc.date.available | 2020-07-22T05:36:04Z | - |
dc.date.issued | 2017 | en_US |
dc.identifier.issn | 0035-8711 | en_US |
dc.identifier.uri | http://hdl.handle.net/20.500.12386/26556 | - |
dc.description.abstract | Mass measurements of astronomical objects are most wanted but still elusive. We need them to trace the formation and evolution of cosmic structure but we can get direct measurements only for a minority. This lack can be circumvented with a proxy and a scaling relation. The twofold goal of estimating the unbiased relation and finding the right proxy value to plug in can be hampered by systematics, selection effects, Eddington/Malmquist biases and time evolution. We present a Bayesian hierarchical method that deals with these issues. Masses to be predicted are treated as missing data in the regression and are estimated together with the scaling parameters. The calibration subsample with measured masses does not need to be representative of the full sample as far as it follows the same scaling relation. We apply the method to forecast weak lensing calibrated masses of the Planck, redMaPPer and MCXC clusters. Planck masses are biased low with respect to weak lensing calibrated masses, with a bias more pronounced for high-redshift clusters. MCXC masses are under-estimated by ∼20 per cent, which may be ascribed to hydrostatic bias. Packages and catalogues are made available with the paper. | en_US |
dc.language.iso | eng | en_US |
dc.title | CoMaLit - V. Mass forecasting with proxies: method and application to weak lensing calibrated samples | en_US |
dc.type | Article | - |
dc.identifier.doi | 10.1093/mnras/stx576 | en_US |
dc.identifier.scopus | 2-s2.0-85040814184 | en_US |
dc.identifier.isi | 000402808700064 | en_US |
dc.identifier.url | https://academic.oup.com/mnras/article/468/3/3322/3063898 | en_US |
dc.relation.medium | STAMPA | en_US |
dc.relation.volume | 468 | en_US |
dc.relation.issue | 3 | en_US |
dc.relation.firstpage | 3322 | en_US |
dc.type.referee | REF_1 | 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 | 2017MNRAS.468.3322S | 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::PE9_6 Stars and stellar systems | 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 |
item.grantfulltext | open | - |
item.cerifentitytype | Publications | - |
item.openairetype | Article | - |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
item.fulltext | With Fulltext | - |
item.languageiso639-1 | en | - |
crisitem.journal.journalissn | 0035-8711 | - |
crisitem.journal.ance | E112946 | - |
crisitem.author.dept | OAS Bologna | - |
crisitem.author.dept | OAS Bologna | - |
crisitem.author.orcid | 0000-0003-0302-0325 | - |
crisitem.author.orcid | 0000-0003-4117-8617 | - |
Appears in Collections: | 1.01 Articoli in rivista |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
stx576.pdf | PDF editoriale | 2.64 MB | Adobe PDF | View/Open |
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Items in DSpace are published in Open Access, unless otherwise indicated.