The impact of ram pressure on cluster galaxies, insights from GAEA and TNG

Abstract

Ram pressure stripping (RPS) has a non-negligible impact on the gas content of cluster galaxies. We use the semi-analytic model GAEA and the hydro-simulation TNG to investigate whether cluster galaxies suffer a strong RPS that is sufficient to remove a significant fraction of their gas during the first pericentric passage. We estimate that a ram pressure of $10^{-10.5}$, $10^{-12}$, $10^{-13.5}$ $gc{m}^{-1}{s}^{-2}$ can remove at most $90\%$, $50\%$, and $20\%$ of the cold gas reservoir from low-mass galaxies with $9<\log M_{\star }/{\mathrm{M}}_{\odot }<9.5$, assuming the gas can be stripped instantaneously. We then use this information to divide the phase space diagram into `strong', `moderate', `weak', and `no' RPS zones. By tracing the orbit of galaxies since $2.5R_{vir}$, we find in both GAEA and TNG that about half of the galaxies in Virgo-like halos ($\log M_h/M_{\odot }\sim 14$) did not suffer strong RPS during the first pericentric passage. In Coma-like halos ($\log M_h/M_{\odot }\sim 15$), almost all galaxies have suffered strong RPS during the first pericentric passage, which can remove all gas from low-mass galaxies but is insufficient to significantly reduce the gas content of more massive galaxies. In general, results from TNG and GAEA are consistent, with the RPS being only slightly stronger in TNG than in GAEA. Our findings suggest that most cluster galaxies will maintain a notable fraction of their gas and continue forming stars after the first pericentric passage, except for those with low stellar mass ($\log M_{\star }/{\mathrm{M}}_{\odot }<9.5$) in very massive halos ($\log M_h/{\mathrm{M}}_{\odot }>15$).

11 pages, 8 figures, accepted for publication in A&A

References in corpus (36)

• The hierarchical formation of the brightest cluster galaxies
• Simulating galaxy formation with black hole driven thermal and kinetic feedback
• Ram pressure stripping the hot gaseous halos of galaxies in groups and clusters
• Ram Pressure Stripping in High-Density Environments
• BUDHIES II: A phase-space view of HI gas stripping and star-formation quenching in cluster galaxies
• Cold gas stripping in satellite galaxies: from pairs to clusters
• WALLABY -- An SKA Pathfinder HI Survey
• The Dawes Review 9: The role of cold gas stripping on the star formation quenching of satellite galaxies
• Properties of Galaxy Groups in the SDSS: II.- AGN Feedback and Star Formation Truncation
• Ram pressure stripping of disc galaxies orbiting in clusters. I. Mass and radius of the remaining gas disc
• Quenched fractions in the IllustrisTNG simulations: comparison with observations and other theoretical models
• Atomic and molecular gas in IllustrisTNG galaxies at low redshift
• Satellite quenching timescales in clusters from projected phase space measurements matched to simulated orbits
• Elemental Abundances in Milky Way-like Galaxies from a Hierarchical Galaxy Formation Model
• Physical properties of SDSS satellite galaxies in projected phase-space
• Ram pressure stripping in a galaxy formation model. I. A novel numerical approach
• LoTSS jellyfish galaxies: II. Ram pressure stripping in groups versus clusters
• The influence of environment on satellite galaxies in the GAEA semi-analytic model
• The Rise of Active Galactic Nuclei in the GAlaxy Evolution and Assembly semi-analytic model
• WALLABY Pilot Survey: the diversity of ram pressure stripping of the galactic HI gas in the Hydra Cluster
• A homogeneous measurement of the delay between the onsets of gas stripping and star formation quenching in satellite galaxies of groups and clusters
• Tracing the Quenching Journey across Cosmic Time
• Ram pressure histories of cluster galaxies
• Jellyfish galaxies with the IllustrisTNG simulations -- When, where, and for how long does ram pressure stripping of cold gas occur?
• A New Method to Quantify Environment and Model Ram-Pressure Stripping in N-Body Simulations
• An orbital perspective on the starvation, stripping, and quenching of satellite galaxies in the EAGLE simulations
• WALLABY Pilot Survey: HI gas disc truncation and star formation of galaxies falling into the Hydra I cluster
• GOGREEN: a critical assessment of environmental trends in cosmological hydrodynamical simulations at z ~ 1
• The Grism lens-amplified survey from space (GLASS). VIII. The influence of the cluster properties on Halpha emitter galaxies at 0.3<z<0.7
• The Three Hundred Project: The gas disruption of infalling objects in cluster environments
• Ram pressure stripping of HI-rich galaxies infalling into massive clusters
• Pre- and post-processing of cluster galaxies out to $5\times R_{200}$: The extreme case of A2670
• It's a Breeze: The Circumgalactic Medium of a Dwarf Galaxy is Easy to Strip
• Ram pressure stripping in the EAGLE simulation
• GASP XXXVII: The Most Extreme Jellyfish Galaxies Compared to Other Disk Galaxies in Clusters, an HI Study
• Cold Gas in Massive Galaxies as A Critical Test of Black Hole Feedback Models

Cited by in corpus (3)

• A Galactic Transformation -- Understanding the SMC's Structural and Kinematic Disequilibrium
• Environmental history of filament galaxies: stellar mass assembly and star-formation of filament galaxies
• Mechanisms Affecting Galaxies Nearby and Environmental Trends (MAGNET)