The formation of ultra-diffuse galaxies in cored dark matter haloes through tidal stripping and heating

@article{Carleton2019TheFO,
  title={The formation of ultra-diffuse galaxies in cored dark matter haloes through tidal stripping and heating},
  author={Timothy Carleton and Raphael Errani and Michael C. Cooper and Manoj Kaplinghat and Jorge Pe{\~n}arrubia and Yicheng Guo},
  journal={Monthly Notices of the Royal Astronomical Society},
  year={2019}
}
Author(s): Carleton, T; Errani, R; Cooper, M; Kaplinghat, M; Penarrubia, J; Guo, Y | Abstract: © 2019 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Society. We propose that the ultra-diffuse galaxy (UDG) population represents a set of satellite galaxies born in ∼1010-1011 M⊙ haloes, similar to field dwarfs, which suffer a dramatic reduction in surface brightness due to tidal stripping and heating. This scenario is observationally motivated by the radial… 

Figures and Tables from this paper

Formation of ultra-diffuse galaxies in the field and in galaxy groups
We study ultra-diffuse galaxies (UDGs) in zoom in cosmological simulations, seeking the origin of UDGs in the field versus galaxy groups. We find that while field UDGs arise from dwarfs in a
Ultra-diffuse galaxies in the Auriga simulations
We investigate the formation of ultra-diffuse galaxies (UDGs) using the Auriga high-resolution cosmological magnetohydrodynamical simulations of Milky Way–sized galaxies. We identify a sample of 92
Tidal stripping as a possible origin of the ultra diffuse galaxy lacking dark matter
  • G. Ogiya
  • Physics
    Monthly Notices of the Royal Astronomical Society: Letters
  • 2018
Recent observations revealed a mysterious ultra diffuse galaxy, NGC1052-DF2, in the group of a large elliptical galaxy, NGC1052. Compared to expectations from abundance matching models, the dark
Quiescent ultra-diffuse galaxies in the field originating from backsplash orbits
Ultra-diffuse galaxies (UDGs) are the lowest-surface brightness galaxies known, with typical stellar masses of dwarf galaxies but sizes similar to larger galaxies like the Milky Way. The reason for
A model for core formation in dark matter haloes and ultra-diffuse galaxies by outflow episodes
We present a simple model for the response of a dissipationless spherical system to an instantaneous mass change at its centre, describing the formation of flat cores in dark matter haloes and
A Shallow Dark Matter Halo in Ultra-diffuse Galaxy AGC 242019: Are UDGs Structurally Similar to Low-surface-brightness Galaxies?
A central question regarding ultra-diffuse galaxies (UDGs) is whether they are in a separate category from low-surface-brightness (LSB) galaxies, or just their natural continuation toward low stellar
Self-interacting dark matter and small-scale gravitational lenses in galaxy clusters
Recently, Meneghetti et al. reported an excess of small-scale gravitational lenses in galaxy clusters. We study its implications for self-interacting dark matter (SIDM), compared with standard cold
Giant cold satellites from low-concentration haloes
  • N. Amorisco
  • Physics
    Monthly Notices of the Royal Astronomical Society: Letters
  • 2019
The dwarf satellite galaxies of the Milky Way Crater II and Antlia II have uncommonly low dynamical mass densities, due to their large size and low velocity dispersion. Previous work have found it
On the Orbital Decay of Globular Clusters in NGC 1052-DF2: Testing a Baryon-only Mass Model
The dark matter content of the ultra diffuse galaxy NGC1052-DF2, as inferred from globular cluster (GC) and stellar kinematics, carries a considerable amount of uncertainty, with current constraints
Orbital Decay of Globular Clusters in the Galaxy with Little Dark Matter
  • A. Nusser
  • Physics
    The Astrophysical Journal
  • 2018
Recently, van Dokkum et. al. have presented an important discovery of an ultra diffuse galaxy, NGC1052-DF2, with a dark matter content significantly less than predicted from its stellar mass alone.
...
1
2
3
4
5
...

References

SHOWING 1-10 OF 133 REFERENCES
The impact of dark matter cusps and cores on the satellite galaxy population around spiral galaxies
We use N-body simulations to study the eects that a divergent (i.e. \cuspy") dark and disc masses. We nd that tidal encounters with discs tend to decrease the average mass of satellite galaxies at
Tidal stripping as a possible origin of the ultra diffuse galaxy lacking dark matter
  • G. Ogiya
  • Physics
    Monthly Notices of the Royal Astronomical Society: Letters
  • 2018
Recent observations revealed a mysterious ultra diffuse galaxy, NGC1052-DF2, in the group of a large elliptical galaxy, NGC1052. Compared to expectations from abundance matching models, the dark
The origin of ultra diffuse galaxies: stellar feedback and quenching.
TLDR
It is shown that outflows that dynamically heat galactic stars, together with a passively aging stellar population after imposed quenching, naturally reproduce the observed population of red UDGs, without the need for high spin haloes, or dynamical influence from their host cluster.
Constraining the distribution of dark matter in dwarf spheroidal galaxies with stellar tidal streams
We use high-resolution N-body simulations to follow the formation and evolution of tidal streams associated to dwarf spheroidal galaxies (dSphs). The dSph models are embedded in dark matter (DM)
BARYONS MATTER: WHY LUMINOUS SATELLITE GALAXIES HAVE REDUCED CENTRAL MASSES
Using high-resolution cosmological hydrodynamical simulations of Milky Way-massed disk galaxies, we demonstrate that supernovae feedback and tidal stripping lower the central masses of bright (–15 <
Tidal stripping and the structure of dwarf galaxies in the Local Group
The shallow faint-end slope of the galaxy mass function is usually reproduced in Λ cold dark matter (ΛCDM) galaxy formation models by assuming that the fraction of baryons that turn into stars drops
DARK MATTER HEATING AND EARLY CORE FORMATION IN DWARF GALAXIES
We present more results from a fully cosmological ΛCDM simulation of a group of isolated dwarf galaxies that has been shown to reproduce the observed stellar mass and cold gas content, resolved star
Dark matter cores all the way down
We use high-resolution simulations of isolated dwarf galaxies to study the physics of dark matter cusp-core transformations at the edge of galaxy formation: M200 = 107-109 M⊙. We work at a resolution
The dependence of dark matter profiles on the stellar-to-halo mass ratio: a prediction for cusps versus cores
We use a suite of 31 simulated galaxies drawn from the MaGICC project to investigate the effects of baryonic feedback on the density profiles of dark matter haloes. The sample covers a wide mass
Under pressure: quenching star formation in low-mass satellite galaxies via stripping
Recent studies of galaxies in the local Universe, including those in the Local Group, find that the efficiency of environmental (or satellite) quenching increases dramatically at satellite stellar
...
1
2
3
4
5
...