Dark matter stripping in galaxy clusters: a look at the stellar-to-halo mass relation in the Illustris simulation

Niemiec, Anna; Jullo, Eric; Giocoli, Carlo; Limousin, M.; Jauzac, Mathilde

doi:10.1093/mnras/stz1318

Cited by 41 publications

(32 citation statements)

References 101 publications

(142 reference statements)

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“…A further formation channel is DM stripping of satellite galaxies, particularly in extreme environments such as clusters (Ogiya 2018;Jing et al 2019;Niemiec et al 2019). Indeed, both N-body simulations in a range of environments, from Milky-Way mass halos (Hayashi et al 2003;Kravtsov et al 2004;Diemand et al 2007;Rhee et al 2017;Buck et al 2019) to clusters (Ghigna et al 1998;Gao et al 2004;Tormen et al 2004;Nagai & Kravtsov 2005;van den Bosch et al 2005;Giocoli et al 2008;Xie & Gao 2015), and analytical models (e.g.…”

Section: Introductionmentioning

confidence: 99%

“…Mamon 2000;Gan et al 2010;Han et al 2016;Hiroshima et al 2018) have shown that DM stripping is ca-pable of removing parts of a galaxy's halo in group and cluster environments. It has been suggested that this process could drive a large scatter in the stellar-to-halo mass relation for satellite galaxies in groups and clusters, moving them from their initial positions towards lower halo masses (Vale & Ostriker 2004;Smith et al 2016;Bahé et al 2017;Rhee et al 2017;Niemiec et al 2017Niemiec et al , 2019, and therefore lower M halo /M ★ values.…”

Section: Introductionmentioning

confidence: 99%

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Dark matter-deficient dwarf galaxies form via tidal stripping of dark matter in interactions with massive companions

Jackson

Kaviraj

Martin

et al. 2021

Monthly Notices of the Royal Astronomical Society

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In the standard ΛCDM (Lambda cold dark matter) paradigm, dwarf galaxies are expected to be dark matter-rich, as baryonic feedback is thought to quickly drive gas out of their shallow potential wells and quench star formation at early epochs. Recent observations of local dwarfs with extremely low dark matter content appear to contradict this picture, potentially bringing the validity of the standard model into question. We use NewHorizon, a high-resolution cosmological simulation, to demonstrate that sustained stripping of dark matter, in tidal interactions between a massive galaxy and a dwarf satellite, naturally produces dwarfs that are dark matter-deficient, even though their initial dark matter fractions are normal. The process of dark matter stripping is responsible for the large scatter in the halo-to-stellar mass relation in the dwarf regime. The degree of stripping is driven by the closeness of the orbit of the dwarf around its massive companion and, in extreme cases, produces dwarfs with halo-to-stellar mass ratios as low as unity, consistent with the findings of recent observational studies. ∼30 per cent of dwarfs show some deviation from normal dark matter fractions due to dark matter stripping, with 10 per cent showing high levels of dark matter deficiency (Mhalo/M⋆ < 10). Given their close orbits, a significant fraction of dark matter-deficient dwarfs merge with their massive companions (e.g. ∼70 per cent merge over time-scales of ∼3.5 Gyr), with the dark matter-deficient population being constantly replenished by new interactions between dwarfs and massive companions. The creation of these galaxies is therefore a natural by-product of galaxy evolution and their existence is not in tension with the standard paradigm.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Dark matter-deficient dwarf galaxies form via tidal stripping of dark matter in interactions with massive companions

Jackson

Kaviraj

Martin

et al. 2021

Monthly Notices of the Royal Astronomical Society

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“…Previous studies (e.g. Behroozi et al 2014;Niemiec et al 2019) found that infalling dark matter haloes start losing their dark matter around similar cluster-centric distances, i.e. ∼1.5-1.8R 200 .…”

Section: How Gas-loss Since Infall Relates To Cluster-centric Distancementioning

confidence: 85%

The Three Hundred project: the gas disruption of infalling objects in cluster environments

Mostoghiu

Arthur

Pearce

et al. 2021

Monthly Notices of the Royal Astronomical Society

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We analyse the gas content evolution of infalling haloes in cluster environments from The Three Hundred project, a collection of 324 numerically modelled galaxy clusters. The haloes in our sample were selected within 5R200 of the main cluster halo at $z$ = 0 and have total halo mass M200 ≥ 1011h−1M⊙. We track their main progenitors and study their gas evolution since their crossing into the infall region, which we define as 1–4R200. Studying the radial trends of our populations using both the full phase-space information and a line-of-sight projection, we confirm the Arthur et al. (2019) result and identify a characteristic radius around 1.7R200 in 3D and at R200 in projection at which infalling haloes lose nearly all of the gas prior their infall. Splitting the trends by subhalo status,we show that subhaloes residing in group-mass and low-mass host haloes in the infall region follow similar radial gas-loss trends as their hosts, whereas subhaloes of cluster-mass host haloes are stripped of their gas much further out. Our results show that infalling objects suffer significant gaseous disruption that correlates with time-since-infall, cluster-centric distance, and host mass, and that the gaseous disruption they experience is a combination of subhalo pre-processing and object gas depletion at a radius that behaves like an accretion shock.

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“…Extending HST observations to ∼3/4 R vir also provides stringent observational constraints for the study of galaxy evolution within dense environments. Niemiec et al (2019) studied and quantified dark matter stripping of galaxy halos during their infall into clusters, as well as the evolution of their stellar mass and star formation using the Illustris-1 simulation. Such studies are often made in aggregate on a large number of clusters, but BUFFALO will do it on a cluster-by-cluster basis, avoiding smoothing out smallerscale influences on individual clusters.…”

Section: Structure Evolution and Dark Matter Physicsmentioning

confidence: 99%

The BUFFALO HST Survey

Steinhardt

Jauzac

Acebrón

et al. 2020

ApJS

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The Beyond Ultra-deep Frontier Fields and Legacy Observations (BUFFALO) is a 101 orbit + 101 parallel Cycle 25 Hubble Space Telescope (HST) Treasury program taking data from 2018 to 2020. BUFFALO will expand existing coverage of the Hubble Frontier Fields (HFF) in Wide Field Camera 3/IR F105W, F125W, and F160W and Advanced Camera for Surveys/WFC F606W and F814W around each of the six HFF clusters and flanking fields. This additional area has not been observed by HST but is already covered by deep multiwavelength data sets, including Spitzer and Chandra. As with the original HFF program, BUFFALO is designed to take advantage of gravitational lensing from massive clusters to simultaneously find high-redshift galaxies that would otherwise lie below HST detection limits and model foreground clusters to study the properties of dark matter and galaxy assembly. The expanded area will provide the first opportunity to study both cosmic variance at high redshift and galaxy assembly in the outskirts of the large HFF clusters. Five additional orbits are reserved for transient followup. BUFFALO data including mosaics, value-added catalogs, and cluster mass distribution models will be released via MAST on a regular basis as the observations and analysis are completed for the six individual clusters.

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Dark matter stripping in galaxy clusters: a look at the stellar-to-halo mass relation in the Illustris simulation

Cited by 41 publications

References 101 publications

Dark matter-deficient dwarf galaxies form via tidal stripping of dark matter in interactions with massive companions

Dark matter-deficient dwarf galaxies form via tidal stripping of dark matter in interactions with massive companions

The Three Hundred project: the gas disruption of infalling objects in cluster environments

The BUFFALO HST Survey

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