Constraints on the richness-mass relation and the optical-SZE positional offset distribution for SZE-selected clusters - Archive ouverte HAL Access content directly
Journal Articles Monthly Notices of the Royal Astronomical Society Year : 2015

Constraints on the richness-mass relation and the optical-SZE positional offset distribution for SZE-selected clusters

, , , , , , , , , , , , , , , , , , , , , , (1) , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , ,
1
A. Saro
S. Bocquet
  • Function : Author
E. Rozo
  • Function : Author
B. A. Benson
  • Function : Author
J. Mohr
  • Function : Author
E. S. Rykoff
  • Function : Author
M. Soares-Santos
  • Function : Author
L. Bleem
  • Function : Author
S. Dodelson
  • Function : Author
P. Melchior
  • Function : Author
F. Sobreira
  • Function : Author
V. Upadhyay
  • Function : Author
J. Weller
  • Function : Author
T. Abbott
  • Function : Author
F. B. Abdalla
  • Function : Author
S. Allam
  • Function : Author
R. Armstrong
  • Function : Author
M. Banerji
  • Function : Author
A. H. Bauer
  • Function : Author
M. Bayliss
  • Function : Author
A. Benoit-Lévy
  • Function : Author
G. M. Bernstein
  • Function : Author
M. Brodwin
  • Function : Author
D. Brooks
  • Function : Author
E. Buckley-Geer
  • Function : Author
D. L. Burke
  • Function : Author
J. E. Carlstrom
  • Function : Author
R. Capasso
D. Capozzi
  • Function : Author
A. Carnero Rosell
  • Function : Author
M. Carrasco Kind
  • Function : Author
I. Chiu
  • Function : Author
R. Covarrubias
  • Function : Author
T. M. Crawford
  • Function : Author
M. Crocce
  • Function : Author
C. B. d'Andrea
  • Function : Author
L. N. da Costa
  • Function : Author
D. L. Depoy
  • Function : Author
S. Desai
  • Function : Author
T. de Haan
  • Function : Author
H. T. Diehl
  • Function : Author
J. P. Dietrich
  • Function : Author
P. Doel
  • Function : Author
C. E. Cunha
  • Function : Author
T. F. Eifler
  • Function : Author
A. E. Evrard
  • Function : Author
A. Fausti Neto
  • Function : Author
E. Fernandez
  • Function : Author
B. Flaugher
  • Function : Author
P. Fosalba
J. Frieman
  • Function : Author
C. Gangkofner
  • Function : Author
E. Gaztanaga
  • Function : Author
D. Gerdes
  • Function : Author
D. Gruen
  • Function : Author
R. A. Gruendl
  • Function : Author
N. Gupta
C. Hennig
  • Function : Author
W. L. Holzapfel
  • Function : Author
K. Honscheid
  • Function : Author
B. Jain
  • Function : Author
D. James
  • Function : Author
K. Kuehn
  • Function : Author
N. Kuropatkin
  • Function : Author
O. Lahav
  • Function : Author
T. S. Li
  • Function : Author
H. Lin
  • Function : Author
M. A. G. Maia
  • Function : Author
M. March
  • Function : Author
J. L. Marshall
  • Function : Author
Paul Martini
  • Function : Author
M. Mcdonald
C. J. Miller
  • Function : Author
R. Miquel
  • Function : Author
B. Nord
  • Function : Author
R. Ogando
  • Function : Author
A. A. Plazas
  • Function : Author
C. L. Reichardt
  • Function : Author
A. K. Romer
  • Function : Author
A. Roodman
  • Function : Author
M. Sako
  • Function : Author
E. Sanchez
  • Function : Author
M. Schubnell
  • Function : Author
I. Sevilla
  • Function : Author
R. C. Smith
  • Function : Author
B. Stalder
  • Function : Author
A. A. Stark
  • Function : Author
V. Strazzullo
  • Function : Author
E. Suchyta
  • Function : Author
M. E. C. Swanson
  • Function : Author
G. Tarle
  • Function : Author
J. Thaler
  • Function : Author
D. Thomas
  • Function : Author
D. Tucker
  • Function : Author
V. Vikram
  • Function : Author
A. von Der Linden
  • Function : Author
A. R. Walker
  • Function : Author
R. H. Wechsler
  • Function : Author
W. Wester
  • Function : Author
A. Zenteno
  • Function : Author
K. E. Ziegler
  • Function : Author

Abstract

We cross-match galaxy cluster candidates selected via their Sunyaev-Zel'dovich effect (SZE) signatures in 129.1 deg2 of the South Pole Telescope 2500d SPT-SZ survey with optically identified clusters selected from the Dark Energy Survey science verification data. We identify 25 clusters between 0.1 ≲ z ≲ 0.8 in the union of the SPT-SZ and redMaPPer (RM) samples. RM is an optical cluster finding algorithm that also returns a richness estimate for each cluster. We model the richness λ-mass relation with the following function 500> ∝ Bλln M500 + Cλln E(z) and use SPT-SZ cluster masses and RM richnesses λ to constrain the parameters. We find B_λ = 1.14^{+0.21}_{-0.18} and C_λ =0.73^{+0.77}_{-0.75}. The associated scatter in mass at fixed richness is σ _{ln M|λ } = 0.18^{+0.08}_{-0.05} at a characteristic richness λ = 70. We demonstrate that our model provides an adequate description of the matched sample, showing that the fraction of SPT-SZ-selected clusters with RM counterparts is consistent with expectations and that the fraction of RM-selected clusters with SPT-SZ counterparts is in mild tension with expectation. We model the optical-SZE cluster positional offset distribution with the sum of two Gaussians, showing that it is consistent with a dominant, centrally peaked population and a subdominant population characterized by larger offsets. We also cross-match the RM catalogue with SPT-SZ candidates below the official catalogue threshold significance ξ = 4.5, using the RM catalogue to provide optical confirmation and redshifts for 15 additional clusters with ξ ∈ [4, 4.5].
Fichier principal
Vignette du fichier
stv2141.pdf (1011.55 Ko) Télécharger le fichier
Origin : Publisher files allowed on an open archive

Dates and versions

insu-03644672 , version 1 (25-04-2022)

Identifiers

Cite

A. Saro, S. Bocquet, E. Rozo, B. A. Benson, J. Mohr, et al.. Constraints on the richness-mass relation and the optical-SZE positional offset distribution for SZE-selected clusters. Monthly Notices of the Royal Astronomical Society, 2015, 454, pp.2305-2319. ⟨10.1093/mnras/stv2141⟩. ⟨insu-03644672⟩
13 View
5 Download

Altmetric

Share

Gmail Facebook Twitter LinkedIn More