On the scatter of the present-day stellar metallicity-mass relation of cluster dwarf galaxies
arXiv:1804.05679 · doi:10.3847/2515-5172/aabcce
Abstract
We examine the scatter of the relation between stellar mass and stellar metallicity for cluster dwarf galaxies in the cosmological simulation Illustris. The mass-metallicity relation exhibits the smallest intrinsic scatter at the galaxies' times of peak stellar mass, suggesting stellar mass stripping to be the primary effect responsible for the rather broad relation at present. However, for about 40% of galaxies in the high-metallicity tail of the relation, we find mass stripping to coincide with an increased enrichment of stellar metallicity, possibly caused by the stripping of low-metallicity stars in the galaxy outskirts.
arXiv comment3 pages, 1 figure. Slightly extended version as compared to the one published in the Research Notes of the AAS
References in corpus (13)
- Introducing the Illustris Project: Simulating the coevolution of dark and visible matter in the Universe
- Properties of galaxies reproduced by a hydrodynamic simulation
- Introducing the Illustris Project: the evolution of galaxy populations across cosmic time
- Galaxy Morphology and Star Formation in the Illustris Simulation at z=0
- Stellar Ages and Metallicities of Central and Satellite Galaxies: Implications for Galaxy Formation and Evolution
- A near-infrared census of the multi-component stellar structure of early-type dwarf galaxies in the Virgo cluster
- The AIMSS Project III: The Stellar Populations of Compact Stellar Systems
- On the occurrence of galaxy harassment
- Galaxy populations in the Antlia cluster. I. Photometric properties of early-type galaxies
- Virgo Cluster and field dwarf ellipticals in 3D - II. Internal dynamics points to tidal harassment?
- The origin of the enhanced metallicity of satellite galaxies
- How Environment Affects Galaxy Metallicity through Stripping and Formation History: Lessons from the Illustris Simulation
- Constraining the subgrid physics in simulations of isolated dwarf galaxies
Cited by in corpus (4)
- De Re Metallica: The cosmic chemical evolution of galaxies
- The distinct stellar-to-halo mass relations of satellite and central galaxies: insights from the IllustrisTNG simulations
- Baryons in the CosmicWeb of IllustrisTNG -- II: the Connection among Galaxies, Halos, their Formation Time and their Location in the Cosmic Web
- Mock Observations: Formation and Evolution of diffuse light in Galaxy Groups and Clusters in the IllustrisTNG Simulations