Satellite abundances around bright isolated galaxies II: radial distribution and environmental effects

Abstract

We use the SDSS/DR8 galaxy sample to study the radial distribution of satellite galaxies around isolated primaries, comparing to semi-analytic models of galaxy formation based on the Millennium and Millennium-II simulations. SDSS satellites behave differently around high- and low-mass primaries: those orbiting objects with $M_{\ast }>10^{11}{M}_{\odot }$ are mostly red and are less concentrated towards their host than the inferred dark matter halo, an effect that is very pronounced for the few blue satellites. On the other hand, less massive primaries have steeper satellite profiles that agree quite well with the expected dark matter distribution and are dominated by blue satellites, even in the inner regions where strong environmental effects are expected. In fact, such effects appear to be strong only for primaries with $M_{\ast }>10^{11}{M}_{\odot }$. This behaviour is not reproduced by current semi-analytic simulations, where satellite profiles always parallel those of the dark matter and satellite populations are predominantly red for primaries of all masses. The disagreement with SDSS suggests that environmental effects are too efficient in the models. Modifying the treatment of environmental and star formation processes can substantially increase the fraction of blue satellites, but their radial distribution remains significantly shallower than observed. It seems that most satellites of low-mass primaries can continue to form stars even after orbiting within their joint halo for 5 Gyr or more.

19 pages, 11 figures, accepted by MNRAS

References in corpus (18)

• K-corrections and filter transformations in the ultraviolet, optical, and near infrared
• Galaxy Pairs in the Sloan Digital Sky Survey I: Star Formation, AGN Fraction, and the Luminosity/Mass-Metallicity Relation
• The redshift dependence of the structure of massive LCDM halos
• The Importance of Satellite Quenching for the Build-Up of the Red Sequence of Present Day Galaxies
• The DEEP2 Galaxy Redshift Survey: Color and Luminosity Dependence of Galaxy Clustering at z~1
• The Hierarchical Build-Up of Massive Galaxies and the Intracluster Light since z=1
• Environmental Effects on Satellite Galaxies: The Link Between Concentration, Size and Colour Profile
• Jellyfish: Evidence of extreme ram-pressure stripping in massive galaxy clusters
• On the formation and physical properties of the Intra-Cluster Light in hierarchical galaxy formation models
• Interaction-induced star formation in a complete sample of 10^5 nearby star-forming galaxies
• Satellite abundances around bright isolated galaxies
• The Dependence of Galaxy Formation on Cosmological Parameters: Can we distinguish the WMAP1 and WMAP3 Parameter Sets?
• Physical properties underlying observed kinematics of satellite galaxies
• The statistics of the subhalo abundance of dark matter haloes
• Modelling and interpreting the dependence of clustering on the spectral energy distributions of galaxies
• Satellite Galaxies and Fossil Groups in the Millennium Simulation
• Luminous Satellites of Early-Type Galaxies I: Spatial Distribution
• Color Dependence in the Spatial Distribution of Satellite Galaxies

Cited by in corpus (69)

• Introducing the Illustris Project: the evolution of galaxy populations across cosmic time
• Galaxies as simple dynamical systems: observational data disfavor dark matter and stochastic star formation
• Mapping stellar content to dark matter halos using galaxy clustering and galaxy-galaxy lensing in the SDSS DR7
• Galaxy assembly, stellar feedback and metal enrichment: the view from the GAEA model
• Strong bimodality in the host halo mass of central galaxies from galaxy-galaxy lensing
• Simulations of ram-pressure stripping in galaxy-cluster interactions
• Taking Care of Business in a Flash: Constraining the Timescale for Low-Mass Satellite Quenching with ELVIS
• Redshift-Space Clustering of SDSS Galaxies --- Luminosity Dependence, Halo Occupation Distribution, and Velocity Bias
• Velocity Bias from the Small Scale Clustering of SDSS-III BOSS Galaxies
• On the Level of Cluster Assembly Bias in SDSS
• Under Pressure: Quenching Star Formation in Low-Mass Satellite Galaxies via Stripping
• The surprising inefficiency of dwarf satellite quenching
• Modelling galaxy clustering: halo occupation distribution versus subhalo matching
• The stellar-to-halo mass relation of GAMA galaxies from 100 square degrees of KiDS weak lensing data
• Planes of satellite galaxies: when exceptions are the rule
• Identifying true satellites of the Magellanic Clouds
• The alignment of satellite galaxies and cosmic filaments: observations and simulations
• Galaxy and Mass Assembly (GAMA): The halo mass of galaxy groups from maximum-likelihood weak lensing
• On the Assembly of Dwarf Galaxies in Clusters and their Efficient Formation of Globular Clusters
• Intrinsic alignments of galaxies in the MassiveBlack-II simulation: analysis of two-point statistics
• The impact of the observed baryon distribution in haloes on the total matter power spectrum
• The Fates of the Circumgalactic Medium in the FIRE Simulations
• The galaxy luminosity function in groups and clusters: the faint-end upturn and the connection to the field luminosity function
• The colors of satellite galaxies in the Illustris Simulation
• Tidal Features at 0.05<z<0.45 in the Hyper Suprime-Cam Subaru Strategic Program: Properties and Formation Channels
• Orbital masses of nearby luminous galaxies
• A new spin on disks of satellite galaxies
• Mapping stellar content to dark matter halos - III.Environmental dependence and conformity of galaxy colours
• Galaxy Zoo: The interplay of quenching mechanisms in the group environment
• The lopsided distribution of satellite galaxies
• The Distribution of Satellites Around Central Galaxies in a Cosmological Hydrodynamical Simulation
• A New Method to Quantify Environment and Model Ram-Pressure Stripping in N-Body Simulations
• Satellites Around Milky Way Analogs: Tension in the Number and Fraction of Quiescent Satellites Seen in Observations Versus Simulations
• The Morphology-Density-Relation: Impact on the Satellite Fraction
• A weak gravitational lensing recalibration of the scaling relations linking the gas properties of dark halos to their mass
• A comparative study of satellite galaxies in Milky Way-like galaxies from HSC, DECaLS and SDSS
• A robust mass estimator for dark matter subhalo perturbations in strong gravitational lenses
• The stellar halo of isolated central galaxies in the Hyper Suprime-Cam imaging survey
• Satellite quenching was not important for z$\sim$1 clusters: most quenching occurred during infall
• Small-scale galaxy clustering in the EAGLE simulation
• A Formation Scenario for the Disk of Satellites: Accretion of Satellites during Mergers
• The effects of LMC-mass environments on their dwarf satellite galaxies in the FIRE simulations
• Catalogs of Compact Groups of Galaxies from the Enhanced SDSS DR12
• Brightest group galaxies and the large-scale environment
• The distribution of satellites around massive galaxies at 1<z<3 in ZFOURGE/CANDELS: dependence on star formation activity
• The stellar mass in and around isolated central galaxies: connections to the total mass distribution through galaxy-galaxy lensing in the Hyper Suprime-Cam survey
• The Carnegie-Irvine Galaxy Survey. IV. A Method to Determine the Average Mass Ratio of Mergers That Built Massive Elliptical Galaxies
• The GOGREEN Survey: Constraining the Satellite Quenching Timescale in Massive Clusters at $\mathbf{z}\gtrsim 1$
• The dominant origin of diffuse Ly$\alpha$ halos around LAEs explored by SED fitting and clustering analysis
• A Machine Learning Approach to Measuring the Quenched Fraction of Low-Mass Satellites Beyond the Local Group
• On the Clustering of Faint Red Galaxies
• The SAGA Survey. V. Modeling Satellite Systems around Milky Way-mass Galaxies with Updated UniverseMachine
• The stellar mass function and evolution of the density profile of galaxy clusters from the Hydrangea simulations at $0<z<1.5$
• Galaxy Three-Point Correlation Functions and Halo/Subhalo Models
• The Luminosity Functions and Redshift Evolution of Satellites of Low-Mass Galaxies in the COSMOS Survey
• Do satellite galaxies trace matter in galaxy clusters?
• Satellite content and quenching of star formation in galaxy groups at z~1.8
• Satellite Alignment: III. Satellite Galaxies Spatial Distribution and their Dependence on Redshift with A Novel Galaxy Finder
• Chemodynamics of dwarf galaxies under ram-pressure
• Beyond Ultra-diffuse Galaxies. II. Environmental Quenching of Mass-Size Outliers among the Satellites of Milky Way Analogs
• Dark against luminous matter around isolated central galaxies: a comparative study between modern surveys and Illustris-TNG
• PAC in DESI. I. Galaxy Stellar Mass Function into the $10^6{\mathrm{M}}_{\odot }$ Frontier
• Satellite galaxies in the Illustris-1 simulation: anisotropic locations around relatively isolated hosts
• Satellite Galaxies in the Illustris-1 Simulation: Poor Tracers of the Mass Distribution
• Environmental Quenching of Low Surface Brightness Galaxies near Milky Way mass Hosts
• A hierarchical clustering method for quantifying satellite abundance
• Exploring the effect of baryons on the radial distribution of satellite galaxies with GAMA and IllustrisTNG
• The Exploration of Local VolumE Satellites (ELVES) Survey: A Nearly Volume-Limited Sample of Nearby Dwarf Satellite Systems
• The Distribution of Satellite Galaxies in the TNG100 Simulation