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Statistical Properties of Cold Streams In Massive Star-Forming Halos in TNG50
Isabel Medlock, Daisuke Nagai, Nir Mandelker +4
Cold, dense streams of gas are predicted to penetrate deeply into massive halos (> 10^12 Msun) at cosmic noon (z=4-2), fueling galaxies to sustain high star formation rates. We inv…
Jellyfish galaxies with the IllustrisTNG simulations -- Supermassive black hole activity in dense environments with ram-pressure stripped satellites
Shalini Kurinchi-Vendhan, Eric Rohr, Annalisa Pillepich +3
Jellyfish galaxies are extreme examples of how galaxies can transform due to dense environmental effects. These satellite galaxies suffer from ram-pressure stripping, leading to th…
The cooler past of the intracluster medium in TNG-Cluster
Eric Rohr, Annalisa Pillepich, Dylan Nelson +3
The intracluster medium (ICM) today is comprised largely of hot gas with clouds of cooler gas of unknown origin and lifespan. We analyze the evolution of cool gas (temperatures $\l…
The hot circumgalactic media of massive cluster satellites in the TNG-Cluster simulation: existence and detectability
Eric Rohr, Annalisa Pillepich, Dylan Nelson +2
The most massive galaxy clusters in the Universe host hundreds of massive satellite galaxies~$\mstar\sim10^{10-12.5} msun$, but it is unclear if these satellites are able to retain…
Jellyfish galaxies with the IllustrisTNG simulations -- Citizen-science results towards large distances, low-mass hosts, and high redshifts
Elad Zinger, Gandhali Joshi, Annalisa Pillepich +2
We present the ``Cosmological Jellyfish'' project - a citizen-science classification program to identify jellyfish galaxies within the IllustrisTNG cosmological simulations. Jellyf…
Jellyfish galaxies with the IllustrisTNG simulations -- No enhanced population-wide star formation according to TNG50
Junia Göller, Gandhali Joshi, Eric Rohr +2
Due to ram-pressure stripping, jellyfish galaxies are thought to lose large amounts, if not all, of their interstellar medium. Nevertheless, some, but not all, observations suggest…
Jellyfish galaxies with the IllustrisTNG simulations -- When, where, and for how long does ram pressure stripping of cold gas occur?
Eric Rohr, Annalisa Pillepich, Dylan Nelson +3
Jellyfish galaxies are prototypical examples of satellite galaxies undergoing strong ram pressure stripping (RPS). We analyze the evolution of 512 unique, first-infalling jellyfish…
The cumulative star-formation histories of dwarf galaxies with TNG50. I: Environment-driven diversity and connection to quenching
Gandhali D. Joshi, Annalisa Pillepich, Dylan Nelson +5
We present the cumulative star-formation histories (SFHs) of >15000 dwarf galaxies () from the TNG50 run of the IllustrisTNG suite across a vast range of…
Ejective and preventative: the IllustrisTNG black hole feedback and its effects on the thermodynamics of the gas within and around galaxies
Elad Zinger, Annalisa Pillepich, Dylan Nelson +6
Supermassive black holes (SMBHs) which reside at the centres of galaxies can inject vast amounts of energy into the surrounding gas and are thought to be a viable mechanism to quen…
The distinct stellar-to-halo mass relations of satellite and central galaxies: insights from the IllustrisTNG simulations
Christoph Engler, Annalisa Pillepich, Gandhali D. Joshi +9
We study the stellar-to-halo mass relation (SHMR) for central and satellite galaxies with total dynamical masses above 10^10.5 Msun using the suite of cosmological magneto-hydrodyn…
Jellyfish galaxies with the IllustrisTNG simulations: I. Gas-stripping phenomena in the full cosmological context
Kiyun Yun, Annalisa Pillepich, Elad Zinger +8
We use IllustrisTNG, a suite of gravity and MHD simulations, to study the demographics and properties of jellyfish galaxies in the full cosmological context. By jellyfish galaxies,…
Quenching of Satellite Galaxies at the Outskirts of Galaxy Clusters
Elad Zinger, Avishai Dekel, Andrey V. Kravtsov +1
We find, using cosmological simulations of galaxy clusters, that the hot X-ray emitting intra-cluster medium (ICM) enclosed within the outer accretion shock extends out to $R_{\rm…
Cold Fronts and Shocks Formed by Gas Streams in Galaxy Clusters
Elad Zinger, Avishai Dekel, Yuval Birnboim +3
Cold Fronts and shocks are hallmarks of the complex intra-cluster medium (ICM) in galaxy clusters. They are thought to occur due to gas motions within the ICM and are often attribu…
The hydrodynamic stability of gaseous cosmic filaments
Yuval Birnboim, Dan Padnos, Elad Zinger
Virial shocks at edges of cosmic-web structures are a clear prediction of standard structure formation theories. We derive a criterion for the stability of the post-shock gas and o…
The Role of Penetrating Gas Streams in Setting the Dynamical State of Galaxy Clusters
E. Zinger, A. Dekel, Y. Birnboim +2
We utilize cosmological simulations of 16 galaxy clusters at redshifts \zeq{0} and \zeq{0.6} to study the effect of inflowing streams on the properties of the X-ray emitting intrac…