Assessing Mass Loss and Stellar-to-Halo Mass Ratio of Satellite Galaxies: A Galaxy-Galaxy Lensing Approach Utilizing DECaLS DR8 Data
arXiv:2305.13694 · doi:10.1093/mnras/stae121
Abstract
The galaxy-galaxy lensing technique allows us to measure the subhalo mass of satellite galaxies, studying their mass loss and evolution within galaxy clusters and providing direct observational validation for theories of galaxy formation. In this study, we use the weak gravitational lensing observations from DECaLS DR8, in combination with the redMaPPer galaxy cluster catalog from Sloan Digital Sky Survey data (SDSS) DR8 to accurately measure the dark matter halo mass of satellite galaxies. We confirm a significant increase in the stellar-to-halo mass ratio of satellite galaxies with their halo-centric radius, indicating clear evidence of mass loss due to tidal stripping. Additionally, we find that this mass loss is strongly dependent on the mass of the satellite galaxies, with satellite galaxies above experiencing more pronounced mass loss compared to lower mass satellites, reaching 86\% at projected halo-centric radius . The average mass loss rate, when not considering halo-centric radius, displays a U-shaped variation with stellar mass, with galaxies of approximately exhibiting the least mass loss, around 60\%. We compare our results with state-of-the-art hydrodynamical numerical simulations and find that the satellite galaxy stellar-to-halo mass ratio in the outskirts of galaxy clusters is higher compared to the predictions of the Illustris-TNG project about factor 5. Furthermore, the Illustris-TNG project's numerical simulations did not predict the observed dependence of satellite galaxy mass loss rate on satellite galaxy mass.
14 pages, 9 figures
References in corpus (25)
- COSMOS Photometric Redshifts with 30-bands for 2-deg2
- Galaxy Groups in the SDSS DR4: I. The Catalogue and Basic Properties
- Dark matter and cosmic structure
- Bayesian Strong Gravitational-Lens Modeling on Adaptive Grids: Objective Detection of Mass Substructure in Galaxies
- Cluster Lenses
- Bayesian Galaxy Shape Measurement for Weak Lensing Surveys -I. Methodology and a Fast Fitting Algorithm
- Analytic models of plausible gravitational lens potentials
- KiDS-1000 catalogue: Weak gravitational lensing shear measurements
- Optimization of the Observing Cadence for the Rubin Observatory Legacy Survey of Space and Time: a pioneering process of community-focused experimental design
- The survival of dark matter halos in the cluster Cl0024+16
- The Preferential Tidal Stripping of Dark Matter versus Stars in Galaxies
- Weak Lensing by Galaxies in Groups and Clusters: I.--Theoretical Expectations
- Deep Full-sky Coadds from Three Years of WISE and NEOWISE Observations
- Modelling and interpreting the dependence of clustering on the spectral energy distributions of galaxies
- Substructure in lensing clusters and simulations
- Unveiling the Intrinsic Alignment of Galaxies with Self-Calibration and DECaLS DR3 data
- Does Concentration Drive the Scatter in the Stellar-to-Halo Mass Relation of Galaxy Clusters?
- Testing strong lensing subhalo detection with a cosmological simulation
- Modeling Galaxy-Galaxy Weak Lensing with SDSS Groups
- Constraining the substructure of dark matter haloes with galaxy-galaxy lensing
- Weak Lensing Analysis of CODEX Clusters using Dark Energy Camera Legacy Survey : Mass-Richness Relation
- KiDS+GAMA: The weak lensing calibrated stellar-to-halo mass relation of central and satellite galaxies
- MaNGA DynPop -- IV. Stacked total density profile of galaxy groups and clusters from combining dynamical models of integral-field stellar kinematics and galaxy-galaxy lensing
- Scanning For Dark Matter Subhalos in Hubble Space Telescope Imaging of 54 Strong Lenses
- Scatter in the satellite galaxy SHMR: fitting functions, scaling relations & physical processes from the IllustrisTNG simulation