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  1. OA@INAF
  2. PRODOTTI RICERCA INAF
  3. 1 CONTRIBUTI IN RIVISTE (Journal articles)
  4. 1.01 Articoli in rivista
Please use this identifier to cite or link to this item: http://hdl.handle.net/20.500.12386/28825
Title: AMICO galaxy clusters in KiDS-DR3: weak lensing mass calibration
Authors: Bellagamba, Fabio
Sereno, Mauro 
Roncarelli, Mauro
Maturi, Matteo
RADOVICH, MARIO 
BARDELLI, Sandro 
PUDDU, Emanuella Anna 
MOSCARDINI, LAURO 
GETMAN, FEDOR 
Hildebrandt, Hendrik
NAPOLITANO, NICOLA ROSARIO 
Issue Date: 2019
Journal: MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 
Number: 484
Issue: 2
First Page: 1598
Abstract: We present the mass calibration for galaxy clusters detected with the AMICO code in KiDS DR3 data. The cluster sample comprises 7000 objects and covers the redshift range 0.1 < z < 0.6. We perform a weak lensing stacked analysis by binning the clusters according to redshift and two different mass proxies provided by AMICO, namely the amplitude A (measure of galaxy abundance through an optimal filter) and the richness λ* (sum of membership probabilities in a consistent radial and magnitude range across redshift). For each bin, we model the data as a truncated NFW profile plus a two-halo term, taking into account uncertainties related to concentration and miscentring. From the retrieved estimates of the mean halo masses, we construct the A-M<SUB>200</SUB> and the λ*-M<SUB>200</SUB> relations. The relations extend over more than 1 order of magnitude in mass, down to M_{200} ∼ 2 (5) × 10^{13} M_☉ h^{-1} at z = 0.2 (0.5), with small evolution in redshift. The logarithmic slope is 2.0 for the A-mass relation, and 1.7 for the λ*-mass relation, consistent with previous estimations on mock catalogues and coherent with the different nature of the two observables.
URI: http://hdl.handle.net/20.500.12386/28825
URL: https://academic.oup.com/mnras/article/484/2/1598/5289902
ISSN: 0035-8711
DOI: 10.1093/mnras/stz090
Bibcode ADS: 2019MNRAS.484.1598B
Fulltext: open
Appears in Collections:1.01 Articoli in rivista

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