First narrow-line flux ratios for lensed quasar RXJ1131-1231 measured with JWST/NIRSpec IFS at ~5% precision, detecting cusp anomaly consistent with prior work.
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representative citing papers
Self-regulating AGN jets in MHD simulations of cool-core clusters yield realistic FRI radio morphologies viewed along the jet axis and account for frequency-independent lobe extents via 1-50 μG fields allowing both young and old electrons to radiate.
SIDM simulations of dwarf halos show that quiescent merger histories produce gravothermal core collapse while sustained mergers prevent collapse and can yield central densities below gravothermal fluid model predictions.
The W cloud is reinterpreted as a disrupting galaxy group with a dynamically coherent tidal tail delivering low-mass star-forming dwarfs to the Virgo cluster.
Future subhalos show a pre-infall bias to higher progenitor masses, modeled in extended Press-Schechter theory by multiplying the collapse barrier by β(x,a)=(1-x)^{1.20+0.14a} for M200c, leading to 10-15% higher central concentration.
Variance of graph-energy centrality jumps at known weak ETH-breaking transitions in RPM and QSM and flags a glassy crossover in the triangular lattice gas.
Advection-only galactic wind models fail to reproduce observed vertical radio profiles without unrealistic velocities, synchrotron spectra are biased toward young electrons in dense regions, and bremsstrahlung/Coulomb losses cannot be neglected even when subdominant.
A Gaussian decomposition via integral transform computes lensing quantities for arbitrary elliptical mass profiles, unifying with existing kinematic analysis.
The DM-free dwarfs around NGC 1052 may be tidal dwarf galaxies produced by the same 1:1 major merger that formed the elliptical galaxy NGC 1052.
PHANTOM is a public MATLAB/Octave toolbox for linear field statistics and halo observables in dark matter cosmology, validated to sub-percent agreement with Python packages colossus, hmf, and halomod.
A six-parameter function of peak height ν, power spectrum slope n_eff, and growth rate α_eff accurately describes median halo mass accretion rates from simulations in ΛCDM and Einstein-de Sitter cosmologies at z=0-14.
A ~60-minute microlensing event is interpreted via Bayesian modeling as a ~0.03 Earth-mass primordial black hole in the Milky Way dark-matter halo.
Mutual information analysis of TNG50 simulations shows gravitational potential and total energy retain merger mass and infall time information longest, while radial velocity loses it within ~5 Gyr, with washout depending on radius, merger age, and mass.
CosmoPostProcess delivers simulation-calibrated radial corrections for projection-induced selection bias (20-40% amplitude near 1 h^{-1} Mpc) and baryonic effects in Euclid richness-selected cluster weak lensing profiles.
In cool-core cluster simulations, mixing with pre-existing cold gas, not direct radiative cooling, dominates condensation; magnetic fields stretch the pre-condensation history to ~150 Myr and brake infalling clouds through tension.
Deep Chandra data confirms three cold fronts in RXJ2014.8-2430 with widths indicating suppressed diffusion and identifies a concave structure consistent with either a Kelvin-Helmholtz instability or a powerful AGN cavity of radius 200-330 kpc.
Simulations indicate that 2500 LSST strong lenses can exclude 74% and 36% of the prior volume on halo mass function parameters at 3σ and 5σ, with sensitivity from both high- and low-mass halos plus line-of-sight contributions.
In COLIBRE, today's galaxy morphology is set mostly by stellar mass: galaxies near M*≈1–2×10^10 M⊙ are the most disc-dominated, above ~2×10^11 M⊙ everything is spheroidal, and halo properties matter only weakly at fixed mass.
Milky Way-mass dark matter density profiles in IllustrisTNG are largely insensitive to astrophysics and cosmology variations, dominated by halo-to-halo variance instead.
Subaru PFS will obtain velocities and abundances for ~18k stars in six dwarfs, 30k in M31, and tens of thousands of outer-MW main-sequence stars to test dark-matter profiles and Local Group assembly.
A matrix-based extension of Papaloizou (2015) gives the tidal separation timescale T for N-planet chains and converts observed offsets into effective Q' bounds, with special sensitivity to the second and outermost planet masses.
JWST prism spectroscopy of 200 massive galaxies at z~3-15 shows normal star-forming galaxies dominate at z>6 while dusty systems and quiescent galaxies increase at lower redshift, with evidence for multiple quenching pathways.
KMeans clustering of star-formation histories for 6051 LAEs in IllustrisTNG100 at z=2 yields four classes, with 35% showing the typical recent-burst profile and 65% having bursts 0.3-1.3 Gyr earlier.
The first circumgalactic dust reddening measurement from Rubin DP1 data finds A_V proportional to r_perp to the -1.8 power within 120 kpc, consistent with prior SDSS/KiDS/DES results despite 1000x smaller area and fainter foreground sample.
citing papers explorer
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First measurement of narrow-line flux ratios for a lensed quasar with JWST/NIRSpec IFS
First narrow-line flux ratios for lensed quasar RXJ1131-1231 measured with JWST/NIRSpec IFS at ~5% precision, detecting cusp anomaly consistent with prior work.
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Simulating realistic radio morphologies of Fanaroff-Riley I jets in a self-regulating cool-core cluster
Self-regulating AGN jets in MHD simulations of cool-core clusters yield realistic FRI radio morphologies viewed along the jet axis and account for frequency-independent lobe extents via 1-50 μG fields allowing both young and old electrons to radiate.
-
Mergers Matter: Gravothermal Collapse in Dwarf Halos with Self-Interacting Dark Matter
SIDM simulations of dwarf halos show that quiescent merger histories produce gravothermal core collapse while sustained mergers prevent collapse and can yield central densities below gravothermal fluid model predictions.
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Hierarchical assembly in action: a galaxy tail from a disrupting group in the Virgo cluster outskirts
The W cloud is reinterpreted as a disrupting galaxy group with a dynamically coherent tidal tail delivering low-mass star-forming dwarfs to the Virgo cluster.
-
The pre-infall bias of subhalos
Future subhalos show a pre-infall bias to higher progenitor masses, modeled in extended Press-Schechter theory by multiplying the collapse barrier by β(x,a)=(1-x)^{1.20+0.14a} for M200c, leading to 10-15% higher central concentration.
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A New Robust Constraint on the Self-interaction Cross-section of Dark Matter with Double Radio Relic Clusters
Variance of graph-energy centrality jumps at known weak ETH-breaking transitions in RPM and QSM and flags a glassy crossover in the triangular lattice gas.
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Revisiting radio synchrotron diagnostics in star-forming galaxies
Advection-only galactic wind models fail to reproduce observed vertical radio profiles without unrealistic velocities, synchrotron spectra are biased toward young electrons in dense regions, and bremsstrahlung/Coulomb losses cannot be neglected even when subdominant.
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Unified lensing and kinematic analysis for any elliptical mass profile
A Gaussian decomposition via integral transform computes lensing quantities for arbitrary elliptical mass profiles, unifying with existing kinematic analysis.
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Tidal origin of dark-matter free dwarf galaxies in the NGC 1052 group
The DM-free dwarfs around NGC 1052 may be tidal dwarf galaxies produced by the same 1:1 major merger that formed the elliptical galaxy NGC 1052.
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PHANTOM: A MATLAB and Octave Toolbox Connecting Linear Field Statistics to Dark Matter Halo Observables
PHANTOM is a public MATLAB/Octave toolbox for linear field statistics and halo observables in dark matter cosmology, validated to sub-percent agreement with Python packages colossus, hmf, and halomod.
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A universal model for the accretion rates and formation times of dark matter halos
A six-parameter function of peak height ν, power spectrum slope n_eff, and growth rate α_eff accurately describes median halo mass accretion rates from simulations in ΛCDM and Einstein-de Sitter cosmologies at z=0-14.
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AMPM II. A Lunar-Mass Primordial Black Hole Microlensing Candidate in the Milky Way Halo
A ~60-minute microlensing event is interpreted via Bayesian modeling as a ~0.03 Earth-mass primordial black hole in the Milky Way dark-matter halo.
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Galactic Amnesia: The Information Washout of the Milky Way Merger History
Mutual information analysis of TNG50 simulations shows gravitational potential and total energy retain merger mass and infall time information longest, while radial velocity loses it within ~5 Gyr, with washout depending on radius, merger age, and mass.
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Euclid preparation. CosmoPostProcess: A simulation calibrated framework for weak lensing selection bias in richness-selected galaxy clusters
CosmoPostProcess delivers simulation-calibrated radial corrections for projection-induced selection bias (20-40% amplitude near 1 h^{-1} Mpc) and baryonic effects in Euclid richness-selected cluster weak lensing profiles.
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XMAGNET -- Stir before serving: a Lagrangian perspective on mixing-driven condensation in the intracluster medium
In cool-core cluster simulations, mixing with pre-existing cold gas, not direct radiative cooling, dominates condensation; magnetic fields stretch the pre-condensation history to ~150 Myr and brake infalling clouds through tension.
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A Detailed View of the Large-Scale Sloshing Cold Front in RXJ2014.8-2430
Deep Chandra data confirms three cold fronts in RXJ2014.8-2430 with widths indicating suppressed diffusion and identifies a concave structure consistent with either a Kelvin-Helmholtz instability or a powerful AGN cavity of radius 200-330 kpc.
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LSST Strong Lensing Systems Dark Matter Sensitivity Analysis with Neural Ratio Estimators
Simulations indicate that 2500 LSST strong lenses can exclude 74% and 36% of the prior volume on halo mass function parameters at 3σ and 5σ, with sensitivity from both high- and low-mass halos plus line-of-sight contributions.
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The morphologies of present-day galaxies in the COLIBRE simulations
In COLIBRE, today's galaxy morphology is set mostly by stellar mass: galaxies near M*≈1–2×10^10 M⊙ are the most disc-dominated, above ~2×10^11 M⊙ everything is spheroidal, and halo properties matter only weakly at fixed mass.
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The DREAMS Project: Disentangling the Impact of Halo-to-Halo Variance and Baryonic Feedback on Milky Way Dark Matter Density Profiles
Milky Way-mass dark matter density profiles in IllustrisTNG are largely insensitive to astrophysics and cosmology variations, dominated by halo-to-halo variance instead.
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Galactic Archaeology with the Subaru `\=Onohi`ula Prime Focus Spectrograph Strategic Program
Subaru PFS will obtain velocities and abundances for ~18k stars in six dwarfs, 30k in M31, and tens of thousands of outer-MW main-sequence stars to test dark-matter profiles and Local Group assembly.
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How to measure tidal dissipation in long resonant chains
A matrix-based extension of Papaloizou (2015) gives the tidal separation timescale T for N-planet chains and converts observed offsets into effective Q' bounds, with special sensitivity to the second and outermost planet masses.
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A Census of the 200 Most Massive Galaxies Spectroscopically Observed with JWST at zspec $\sim$3-15
JWST prism spectroscopy of 200 massive galaxies at z~3-15 shows normal star-forming galaxies dominate at z>6 while dusty systems and quiescent galaxies increase at lower redshift, with evidence for multiple quenching pathways.
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The new era of Lyman alpha emitters (LAEs): Typical star formation histories of LAEs in the ILLUSTRIS simulation
KMeans clustering of star-formation histories for 6051 LAEs in IllustrisTNG100 at z=2 yields four classes, with 35% showing the typical recent-burst profile and 65% having bursts 0.3-1.3 Gyr earlier.
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A First Measurement of Circumgalactic Dust Reddening from Only 4.6 deg$^2$ of the Rubin Observatory's DP1
The first circumgalactic dust reddening measurement from Rubin DP1 data finds A_V proportional to r_perp to the -1.8 power within 120 kpc, consistent with prior SDSS/KiDS/DES results despite 1000x smaller area and fainter foreground sample.
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Universal Fitting Formulae for the Peak Concentration of Dark Matter Halos
Empirical universal fitting formula for the peak (most probable) concentration of dark matter halos derived from lognormal fits to simulation distributions and shown to be invariant across cosmologies.
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The Via Project: Overview of the Science, Instrument, and Survey
The Via Project is a planned five-year dual-hemisphere spectroscopic survey targeting over 2 million stars with 100 m/s RV stability and transient spectroscopy to r~24 using instruments on MMT and Magellan/Clay telescopes starting in 2027.
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Basis sets and Coulomb resolutions in rotational coordinates
Derives three closed-form basis sets using a single Jacobi polynomial in prolate spheroidal and cylindrical coordinates and shows transformations between spherical, prolate spheroidal, bispherical, and toroidal systems.
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Beyond Self-Similarity: Reconciling X-Ray Scaling Relations in Galaxy Clusters and Groups
Power-law modeling of gas mass fraction and temperature variation reconciles observed X-ray scaling relations in galaxy clusters, reducing >3σ tensions from 49% to 11% and yielding a redshift-independent mass proxy Y_LGT0.
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A Unified H i Rotation Curve Database for 129 Local Volume Dwarf and Irregular Galaxies
A unified HI rotation curve database for 129 Local Volume dwarf and irregular galaxies with standardized parameters, quality tiers, and machine-readable formats.
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AMPM I. A Targeted Search for Asteroid Mass Primordial Black Hole Microlenses
AMPM survey detects one microlensing candidate in LMC data and constrains up to 30% of Galactic primordial black hole dark matter at 95% C.L. in the asteroid-to-planetary mass range, with peak sensitivity shifted to lunar masses by second-order effects.
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Bulgeless Evolution And the Rise of Discs (BEARD) III. A numerical simulation view of satellites around Milky-Way analogues
Simulation comparison finds bulgeless galaxies host more centrally concentrated, disc-aligned satellites with steeper faint-end luminosity functions than bulge-dominated controls, reflecting co-evolution and quieter merger histories.
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Halo-driven Origin and Suppression of Over-massive Black Holes and Little Red Dots
Halo-driven transient rapid growth followed by thermodynamic suppression explains over-massive black holes and Little Red Dots as precursors to standard SMBH-galaxy coevolution.
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Constraining Galaxy Cluster Triaxiality via Weak Lensing -- I. Preparation for the Rubin Data Beyond Leading Order
Galaxy clusters have an average projected ellipticity of 0.310 with axis ratio 0.527, showing no significant mass or redshift dependence, measured via weak lensing on DES Y3 data and verified with mocks.
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Non-conservation and time non-locality of biased tracers
Non-conserved biased tracers debias more rapidly than conserved tracers, leading to time-dependent suppression of large-scale power.
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An Extended Parametric Model for Self-interacting Dark Matter Halos
An extended parametric model for SIDM halos incorporates mass accretion to delay core collapse and reduces errors in predicted V_max at z=0 relative to the prior Yang et al. (2024b) model.
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Inferring Halo Mass and Scale Radius of Galaxy Clusters Using Convolutional Neural Networks and Uchuu-UniverseMachine Catalogs
Convolutional neural networks can infer galaxy cluster virial masses and scale radii from 2D projected position and line-of-sight velocity distributions with nearly unbiased results and reduced scatter when richness is added or training is limited to relaxed systems.
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Galaxy discs regulate the growth of supermassive black holes
Disc galaxies inhibit supermassive black hole growth by preserving rotational support in central gas, while mergers in ellipticals disrupt this support and enable rapid accretion.
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Optical Appearance and Ringdown of Black Holes in a Kalb Ramond Field Coupled to Perfect Fluid Dark Matter
A black hole in a Kalb-Ramond field coupled to perfect fluid dark matter has modified photon orbits and quasinormal mode frequencies and damping rates that depend on the Lorentz-violating parameter alpha and dark matter parameter lambda.
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ELG$\times$LRG distribution through dark matter halo dynamics
A new halo occupation model called HOMe reproduces the anisotropic clustering of ELGs and LRGs down to 200 h^{-1} kpc scales by sampling satellites from dark matter particle positions and fitting parameters to two-point statistics.
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Steady-State or Not? The Evolution of Cosmic Ray Electron Spectra in Galaxies
Time-dependent cosmic ray electron spectra in a simulated galactic disk match steady-state solutions up to 500 GeV but become steeper and more disk-confined at higher energies due to recent injections.
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Adaptive Reconstruction of Cluster Halos (ARCH): Integrating Shear and Flexion for Substructure Detection
ARCH introduces a staged optimization pipeline for joint shear-flexion gravitational lensing reconstruction that recovers cluster and subcluster masses consistent with prior weak+strong lensing results on Abell 2744 and El Gordo.
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Two-phase formation of galaxies: the coevolution between galaxies and dark matter halos
FIRE-2 simulations show Milky Way analogs form in two phases whose transition correlates with the host halo's shift from fast to slow accretion, driven by two distinct star-formation modes.
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Constraining Gas Mass Fractions in Galaxy Groups and Clusters with the First CHIME/FRB Outrigger
FRB dispersion measures from CHIME/FRB Outrigger constrain gas mass fractions in galaxy groups and clusters, consistent with eROSITA at R500 but with mild tension at R200.
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Black holes in a bouncing universe
Two-fluid model shows black holes persist through cosmological bounce and modify background fluid properties under fixed geometry.
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Determination of the metric of a Schwarzschild black hole surrounded by a halo of dark matter
Authors derive an exact metric solution for Schwarzschild black hole plus anisotropic dark matter halo fluid, with A(r)B(r) = 1 + O(10^{-6}) and smooth Darmois-Israel matching at the boundary.
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Probing Baryonic Feedback Effect with CSST Weak Lensing and Future FRB Measurements
Forecasts using mock CSST lensing and SKA/DSA-2000 FRB DM data show joint analysis improves log10 T_AGN precision from 3.1% to 0.4% and tightens sum m_nu upper limit to <0.47 eV.
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Accurate Galaxy Cluster Shear and Mass Calibration for LSST with AnaCal
AnaCal recovers input shear with low bias in high-shear cluster regimes under LSST-like conditions, producing 0.24% mean mass bias.
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Variability in Cosmological Hydrodynamical Simulations: how Stochastic Processes, Numerical Effects, and Reproducibility Limits impact Predictability
Four controlled identical realizations of a galaxy-cluster zoom-in simulation reveal 10-25% variability in galaxy masses driven by stochastic processes and modulated by feedback, establishing a noise-dominated but statistically reproducible regime at low resolution.
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Constraining the Geometry of Galactic Dark Matter with Gaia Data Release 3
Gaia DR3 data favors flattened disk-like dark matter over spherical halos in the Milky Way.
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A dark-matter-sensitive orientation clock near rotating black holes
Parameter scans of a hand-set effective model show that adding dark matter around a rotating black hole slows the intermediate-axis flip frequency of a coherent triaxial structure relative to Kerr.