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Evidence of Halo Assembly Bias in Massive Clusters
- Source :
- Physical review letters. 116(4)
- Publication Year :
- 2015
-
Abstract
- We present significant evidence of halo assembly bias for SDSS redMaPPer galaxy clusters in the redshift range $[0.1, 0.33]$. By dividing the 8,648 clusters into two subsamples based on the average member galaxy separation from the cluster center, we first show that the two subsamples have very similar halo mass of $M_{\rm 200m}\simeq 1.9\times 10^{14}~h^{-1}M_\odot$ based on the weak lensing signals at small radii $R<br />Comment: 5 pages, 3 figures, matched to the published version. Supplemental material is available at http://journals.aps.org/prl/abstract/10.1103/PhysRevLett.116.041301
- Subjects :
- Physics
Cosmology and Nongalactic Astrophysics (astro-ph.CO)
010308 nuclear & particles physics
FOS: Physical sciences
General Physics and Astronomy
Astronomy
Astrophysics::Cosmology and Extragalactic Astrophysics
Astrophysics
20399 Classical Physics not elsewhere classified
01 natural sciences
Redshift
Galaxy
Galactic halo
0103 physical sciences
Halo effect
Galaxy formation and evolution
Halo
010303 astronomy & astrophysics
Astrophysics::Galaxy Astrophysics
Weak gravitational lensing
Galaxy cluster
Astrophysics - Cosmology and Nongalactic Astrophysics
Subjects
Details
- ISSN :
- 10797114
- Volume :
- 116
- Issue :
- 4
- Database :
- OpenAIRE
- Journal :
- Physical review letters
- Accession number :
- edsair.doi.dedup.....a229a753919fa0052b8f126666ec7a2b