REVIEW 15 cited by
FLAMINGO: combining kinetic SZ effect and galaxy-galaxy lensing measurements to gauge the impact of feedback on large-scale structure
Not yet reviewed by Pith; the record is open.
This paper has not been read by Pith yet. Machine review is queued; the pith claim, tier, and objections will appear here once it completes.
SPECIMEN: schema-true, not a live event
T0 review · schema-true
One-sentence machine reading of the paper's core claim.
pith:XXXXXXXX · record.json · timestamp
Signed reviews
read the original abstract
Energetic feedback processes associated with accreting supermassive black holes can expel gas from massive haloes and significantly alter various measures of clustering on ~Mpc scales, potentially biasing the values of cosmological parameters inferred from analyses of large-scale structure (LSS) if not modelled accurately. Here we use the state-of-the-art FLAMINGO suite of cosmological hydrodynamical simulations to gauge the impact of feedback on large-scale structure by comparing to Planck + ACT stacking measurements of the kinetic Sunyaev-Zel'dovich (kSZ) effect of SDSS BOSS galaxies. We make careful like-with-like comparisons to the observations, aided by high precision KiDS and DES galaxy-galaxy lensing measurements of the BOSS galaxies to inform the selection of the simulated galaxies. In qualitative agreement with several recent studies using dark matter only simulations corrected for baryonic effects, we find that the kSZ effect measurements prefer stronger feedback than predicted by simulations which have been calibrated to reproduce the gas fractions of low redshift X-ray-selected groups and clusters. We find that the increased feedback can help to reduce the so-called S8 tension between the observed and CMB-predicted clustering on small scales as probed by cosmic shear (although at the expense of agreement with the X-ray group measurements). However, the increased feedback is only marginally effective at reducing the reported offsets between the predicted and observed clustering as probed by the thermal SZ (tSZ) effect power spectrum and tSZ effect--weak lensing cross-spectrum, both of which are sensitive to higher halo masses than cosmic shear.
Forward citations
Cited by 15 Pith papers
-
Shear-kSZ: A New Estimator for the Matter-Electron Power Spectrum from kSZ Tomography and Weak Lensing
Shear–kSZ correlates kSZ, tomographic line-of-sight velocity, and lensing convergence to measure P_me(k) and thereby the baryonic matter-power suppression S(k) at high forecast significance.
-
Interpreting the stacked kinetic SZ effect I: velocity reconstruction and non-linear velocity effects
Non-linear velocity terms cancel in real-space linear reconstruction, but redshift-space distortions reintroduce a 10–20% small-scale suppression of the stacked kSZ signal.
-
The Power Spectrum of the Thermal Sunyaev-Zeldovich Effect
The tSZ power spectrum inferred from Planck, ACT, and SPT temperature spectra is about 30 to 50 percent of the FLAMINGO baseline prediction at multipoles above 2000, with a shallower slope.
-
Direct shear $\times$ kSZ correlation: controlling baryons without modeling galaxies
A shear×velocity kSZ template cross-correlated with the CMB is forecast to measure the electron–matter power spectrum to few-percent (ACT/SO) or sub-percent (CMB-HD) precision.
-
Evaluating the flexibility of the MillenniumTNG galaxy formation model with multi-zoom re-simulations
A parameter combination of the MillenniumTNG galaxy-formation model is found that reproduces the observed galaxy stellar-mass function and the lower gas fractions measured in groups and clusters, showing the model is ...
-
Floquet Dissipative Phase Transitions
Dissipative phase transitions in Floquet open systems are defined through the Floquet propagator spectrum, with applications to driven Kerr resonators and the quantum Rabi model.
-
Missing baryons recovered: a measurement of the gas fraction in galaxies and groups with the kinematic Sunyaev-Zel'dovich effect and CMB lensing
CMB lensing mass calibration of DESI galaxies, combined with kSZ gas profiles, measures gas fractions that reach the cosmic baryon fraction at large radii but drop to about 30 percent near the virial radius.
-
Baryonification II: Constraining feedback with X-ray and kinematic Sunyaev-Zel'dovich observations
ACT kSZ and eROSITA gas fractions are mutually consistent in a baryonification fit and imply strong feedback, with predicted matter power suppression reaching 20-25 percent at k=5 h/Mpc.
-
Cosmological feedback from a halo assembly perspective
Baryonic feedback imprints on cosmological observables are governed by halo mass assembly: feedback is most efficient at M200m around 10^12.8 solar masses regardless of redshift.
-
Robustness of pairwise kinematic Sunyaev-Zel'dovich effect to optical-cluster-selection bias
An alternative richness based on cylindrical line-of-sight galaxy counts, applied to Magneticum hydrodynamical simulations, yields no significant optical cluster selection bias on pairwise kSZ, pairwise velocity, or o...
-
Cosmic Ray Feedback in Massive Halos: Implications for the Distribution of Baryons
Cosmic rays from past black hole growth can rival gas pressure at the outskirts of group-mass halos, potentially driving baryons out and reshaping halo outskirts.
-
FLAMINGO: Galaxy formation and feedback effects on the gas density and velocity fields
In FLAMINGO simulations, gas density is biased low by up to about 8% on gigaparsec scales due to star formation, while gas velocities are unbiased on large scales and AGN feedback shapes outflows to tens of virial radii.
-
The FLAMINGO project: cosmology with the redshift dependence of weak gravitational lensing peaks
The redshift distribution of high-SNR weak lensing peaks traces massive haloes and is insensitive to baryonic physics, making it a promising cosmological probe for Stage IV surveys.
-
Learning Optimal and Interpretable Summary Statistics of Galaxy Catalogs with SBI
Jointly training a graph neural network with a normalizing flow yields low-dimensional summary statistics from simulated galaxy catalogs that support likelihood-free inference of Omega_m, and can be interpreted via co...
-
Mapping luminous and dark matter in the Universe
A review/vision essay argues that baryonic effects on the clustering of matter, a key systematic for upcoming lensing surveys, can be modeled and calibrated through a combination of simulations and new observables.
Discussion (0). Continue with ORCID to comment.