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Galaxy cluster cores as seen with VLT/MUSE: New strong-lensing analyses of RX J2129.4 + 0009, MS 0451.6 − 0305, and MACS J2129.4 − 0741
- Source :
- Monthly Notices of the Royal Astronomical Society, 2021, Vol.508(1), pp.1206-1226 [Peer Reviewed Journal], Monthly Notices of the Royal Astronomical Society, Monthly Notices of the Royal Astronomical Society, 2021, 508 (1), pp.1206-1226. ⟨10.1093/mnras/stab2270⟩, Mon.Not.Roy.Astron.Soc., Mon.Not.Roy.Astron.Soc., 2021, 508 (1), pp.1206-1226. ⟨10.1093/mnras/stab2270⟩
- Publication Year :
- 2021
- Publisher :
- Oxford University Press (OUP), 2021.
-
Abstract
- We present strong-lensing analyses of three galaxy clusters, RXJ2129.4+0009 (z=0.235), MS0451.6-0305 (z=0.55), and MACSJ2129.4-0741 (z=0.589), using the powerful combination of Hubble Space Telescope (HST) multi-band observations, and Multi-Unit Spectroscopic Explorer (MUSE) spectroscopy. In RXJ2129, we newly spectroscopically confirm 15 cluster members. Our resulting mass model uses 8 multiple image systems as we include a galaxy-galaxy lensing system North-East of the cluster, and is composed of 71 halos including one dark matter cluster-scale halo and 2 galaxy-scale halos optimized individually. For MS0451, we report the spectroscopic identification of 2 new systems of multiple images in the Northern region, and 112 cluster members. Our mass model uses 16 multiple image systems, and 146 halos, including 2 large-scale halos, and 7 galaxy-scale halos independently optimized. For MACSJ2129, we report the spectroscopic identification of one new multiple image system at z=4.41, and newly measure spectroscopic redshifts for 4 cluster members. Our mass model uses 14 multiple image systems, and is composed of 151 halos, including 2 large-scale halos and 4 galaxy-scale halos independently optimized. Our best models have rms of 0.29'', 0.6'', 0.74'' in the image plane for RXJ2129, MS0451, and MACSJ2129 respectively. This analysis presents a detailed comparison with the existing literature showing excellent agreements, and discuss specific studies of lensed galaxies, e.g. a group of submilimeter galaxies at z=2.9 in MS0451, and a bright z=2.1472 red singly imaged galaxy in MACSJ2129.<br />25 pages, 10 figures, 13 tables, accepted in MNRAS
- Subjects :
- Cosmology and Nongalactic Astrophysics (astro-ph.CO)
Dark matter
FOS: Physical sciences
Astrophysics::Cosmology and Extragalactic Astrophysics
Astrophysics
01 natural sciences
0103 physical sciences
Cluster (physics)
Techniques: imaging spectroscopy
Spectroscopy
010303 astronomy & astrophysics
Astrophysics::Galaxy Astrophysics
Galaxy cluster
Physics
010308 nuclear & particles physics
gravitational lensing: strong
Astronomy and Astrophysics
Galaxies: clusters: individual (RX J2129.4 + 0009
Image plane
Astrophysics - Astrophysics of Galaxies
MS 0451.6 − 0305
Redshift
Galaxy
MACS J2129.4 − 0741)
Space and Planetary Science
Astrophysics of Galaxies (astro-ph.GA)
Galaxies: clusters: general
Halo
[PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph]
Astrophysics - Cosmology and Nongalactic Astrophysics
Subjects
Details
- ISSN :
- 13652966 and 00358711
- Volume :
- 508
- Database :
- OpenAIRE
- Journal :
- Monthly Notices of the Royal Astronomical Society
- Accession number :
- edsair.doi.dedup.....8f5f5afe4e0cc0700a41725481c52db4