Astrophysics
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Solar neutrino and gamma-ray observations beat Earth-based experiments for certain annihilation channels, probing the neutrino fog
· “Solar Spin-Dependent Dark Matter-Neutron Cross Section Constraints: The Lost Case”
Thermal 1.1 TeV higgsino predicts multiple high-energy recoils, but LZ sees none; a ~500 GeV non-thermal higgsino may evade.
· “Confronting the Higgsino Interpretation of the LZ Event with the High-Energy Sideband”
IceCube's non-observation of TeV neutrinos from the Sun sets the strongest limit on Higgsino mass splitting, eliminating a candidate…
· “Strong Constraints on Higgsino Dark Matter from Solar Capture”
Electroweak-fixed cross section predicts the observed recoil without free parameters.
· “Higgsino Dark Matter Interpretation of the LUX-ZEPLIN 248 keV Nuclear-Recoil Event”
A 420-GeV dark photon with a nearly degenerate partner reproduces the 248-keV nuclear recoil while preserving the Sommerfeld-enhanced halo…
Derived bound α < 10^{-3} for cold ice means Jupiter's moon-forming disk must have been very quiet.
· “An Upper Limit on Turbulent Viscosity in the Circumjovian Nebula”
Each low-frequency term fixes a projected-density moment, giving a model-independent readout of halo structure.
A spectroscopic probe using fundamental-plane residuals achieves precision equal to stage-III shape analyses.
· “Sizing the Universe with DESI Galaxy Sizes: Plain Fundamentals of Fundamental-Plane Lensing”
Fitting a baryonification model to CHEX-MATE and eFEDs X-ray data yields gas fractions of 0.029 and 0.078 at two mass scales and a 6 to 23…
· “Baryonification IV: Constraining baryonic feedback with X-ray gas fractions”
Starlet ℓ1-norm gives 1.8x tighter constraints at Stage IV area without modeling baryons
· “Mitigating baryonic effects in weak lensing with higher-order statistics”
Young open clusters inherit the Milky Way's star-forming pattern; dynamical evolution erases it, small scales first.
A parity-odd 3PCF estimator on 2D shells complements existing four-point searches.
· “A Two-Dimensional Test of Cosmological Parity Violation with the 3-Point Correlation Function”
In the hybrid TILING pipeline, galaxies pin the phases of the early density field while 21cm maps fix the amplitudes, reaching k ≈ 0.2…
New model evaluates in 12 ms, provides analytic gradients and uncertainty envelope for aligned-spin binaries.
The stochastic background and individual merger bursts constrain the same binary population in one hierarchical model.
Dynamical-timescale instabilities can drive outflowing acoustic energy and mass loss from this O-type supergiant.
· “Exploring pulsational instabilities in the O-type supergiant HD 152249”
Cross-correlating future gravitational wave data with galaxy catalogs can split isolated binaries from globular-cluster origins.
· “Breaking binary formation mechanism degeneracies with gravitational wave clustering”
The same early-universe seeds could also speed up the first massive galaxies, easing a Lambda-CDM tension.
A 5.75σ difference in outer companion eccentricity supports divergent formation histories for hot and warm Jupiters.
New JWST-era fits show the primordial planetesimal mass distribution is broad and lognormal across five decades of mass.
· “The size and mass distribution of cold classical TNOs for 5<H<13”
Study of 171 brightest cluster galaxies at z = 0.3–0.8 finds that maintenance-mode feedback was already common by z ~ 1.
JWST reaches magnitude 29.8, a full magnitude deeper than Hubble, and both TNO populations trace the same shallow slope.
· “The Luminosity Function of Ultra-Faint Trans-Neptunian Objects Detected by JWST”
Modeling suprathermal tails with RKD reveals extreme aperiodic instability at oblique angles beyond Maxwellian reach.
· “On the modeling of oblique firehose instabilities in regularized Kappa plasmas using ALPS”
Accounting for wind mass loss, the relation M_BH ≈ M_CO is recovered from observed distributions of 31 WR stars and 53 black holes.
· “Wolf-Rayet stars and black holes: mass distributions and evolutionary connection”
Two distinct ultra-fast outflow components are detected in each of two XMM-Newton observations of Mrk205, with velocities ~0.07–0.1c, and…
Open clusters benchmark rotation, activity, and chemistry, but new results challenge simple models.
Method avoids degeneracy that plagues joint fits, recovers self-gravitating disk shape and first analytical distribution function.
· “Closed-Form of the Local Galactic Potential and Stellar Distribution Function from Gaia DR3”
Cold classical objects down to 5 km preserve primordial surfaces, supporting formation by pebble-cloud collapse.
· “Combined JWST and HST Deep Imaging to Characterize the Smallest Known Trans-Neptunian Objects”
The model keeps the recoil signal, hits the relic density, and stays testable by solar neutrinos.
· “A Vector-Like Lepton Interpretation of the High-Energy Nuclear Recoil Candidate in LUX-ZEPLIN”
TARTARUS reproduces analytical Kerr shadows at ~65 s per 1024² image, proving pure Python is viable for production ray tracing.
· “TARTARUS: A High-Performance Python Code for Ray Tracing in Curved Spacetimes”
Shape and orientation of the Milky Way's dark halo shift inferred MACHO bounds far beyond stated statistical errors.
Open-source tool agrees with independent solutions at 0.02 ns per century, enabling sub-nanosecond lunar and Mars navigation.
· “TEMPUS: Relativistic coordinate time scales for any solar-system body from arbitrary ephemerides”
Model shows 100x Earth's dust flux can produce high-altitude silicate features observed on a warm Neptune.
· “Interplanetary Dust Ablation Seeds Silicate Clouds in Exoplanet Atmospheres”
A 50-year-old idea that rings of young stars trace spiral arms collapses under accurate parallaxes and proper motions.
New y-tau scaling relations turn ACT Compton-y stacks into cluster optical depths for DESI samples.
Six stars dimmed by 25-100 percent, one fully, pointing to planetesimal collisions near dead stars.
XRISM's 5-eV resolution reveals unique inner-disk radius and 5-degree inclination.
· “Resolving structure within the iron line profile of Serpens X-1 with XRISM and NuSTAR”
Simulations show Faraday rotation only modestly reduces X-ray polarization, keeping magnetically stabilized thin disks viable.
· “Strong Polarization Signatures from Magnetically Stabilized Luminous Thin Accretion Disks”
Multi-point velocity statistics find one correlation scale across the complex and its ten substructures.
· “Turbulence Cascade in Cygnus X Revealed by Multi-point VDF Method”
A strangeness-driven hyperon transition joins the nuclear and quark transitions, ending near 40 MeV.
If right, the bump's onset is fixed by local pressure and temperature at a composition boundary, not by the burning front.
· “The role of specific entropy in the onset of the luminosity bump”
Static axion gradients from neutron stars drive asymmetric pair discharge, modifying the pulsar death line and opening new axion…
First-order cancellation and harmonic orthogonality suppress residuals in cluster weak-lensing radial profiles
Phase-resolved LHAASO data define a narrow boundary where moments of inertia distinguish EoS only under specific engine conditions.
Injection tests with Dynesty recover signals at the theory-predicted rate, with well-calibrated errors.
· “Enabling new sampling strategies for continuous-wave analyses by integrating Bilby into PyFstat”
If correct, misaligned radio jets can make GeV–TeV light through pair cascades — no Doppler boosting required.
System achieves <1% pressure drift over 8 hours; calorimeter corrects beam power by 6.2%
· “Design and commissioning of a windowless gas-target system for high-current beams at JUNA”
Non-thermal pressure at 2.5% keeps hydrostatic bias below 2.5%, matching strong cool cores
Synchrotron from annihilating WIMPs in the Andromeda nucleus may be detectable by ALMA in just 24 hours, probing thermal masses up to 1 TeV.
· “Detection prospects for heavy WIMP dark matter around M31* in microwave band”
An exponential fit to 24 models puts Super-Kamiokande limits and model predictions on one spectral plane.
· “A Two-Parameter Framework for the Diffuse Supernova Neutrino Background”
A single empirical law connects hour-long eruptions and month-to-year nuclear transients with only 0.29-dex scatter.
· “A Unified Timescale Relation for Quasi-Periodic Eruptions and Repeated Nuclear Transients”
Using absorption measure distribution, authors constrain outflow density and launch radius to within a factor of two in hard states.
· “Stratified Wind Geometries of GRS 1915+105: Density Profiles and Radii”
The only 'quasi-stable' Centaur is reclassified: it crosses Uranus and dies in about 3 Myr.
Space baseline like BHEX sharpens orbital measurements by a factor of four.
· “Supermassive black hole binaries in the multi-messenger context of ground and spaceborne VLBI”
Jones and Mueller beam models from simulations give calibration baseline for polarimetry at 5 and 6.7 GHz.
· “Full Characterisation of the Polarisation Primary Beam of the GRAO 32-m Telescope”
All 15 stages verify in a machine-readable receipt, so adoption is auditable without a full recompute.
· “A Content-Addressed Workflow for Reproducible DANTE Gravitational-Wave Anomaly Analysis”
Upper limits at 110 MHz rule out bright FRB-like pulses and hint at faint periodic emission.
· “Constraints on the Low-frequency Radio Emission of the Galactic FRB Source SGR 1935+2154”
A high-resolution simulation shows the extra absorption around group galaxies comes from satellites, not the environment.
Reconstructions match published results on simulated and JWST-observed clusters, plus a new lens-model diagnostic.
· “texttt{LensFactory.jl}: A general-purpose strong lens modeling package”
Grid of 45 disk models predicts when JWST sees bright CH3+ and H2 emission and when it does not, separating internal and external…
NUACF and NUCCF provide confidence intervals and full error budgets without interpolation or binning
Spectroscopic vetting of 20 Gaia DR3 substellar candidates shows that 13 are stellar twins mimicking dark companions and six are genuine…
Kinematics break the lensing degeneracy so a single double-source system can test evolving dark energy.
Tiered multi-source evidence enables large-scale evaluation of maneuver detection for the first time
· “MAD-LEO: A Maneuver-Annotated Orbital Dataset for LEO Satellites with Tiered Multi-Source Evidence”
It makes the count of coexisting mechanisms the first thing learned from data, and reappraises galaxy acceleration.
Six models at equal mass agree on total light within 1%, but split on where the heat goes.
A giant S-shaped source with hotspot ages from 4.5 to 20.5 Myr becomes the first known quadruple-double radio galaxy.
· “J023721.13-010528.5: A Giant S-shaped Radio Galaxy Showing Four Episodes of Jet Activity”
Comparing two red-giant luminosities erases distance errors and caps the axion-electron coupling at 95% confidence.
· “A distance-independent constraint on the axion-electron coupling from RGB stars”
Accounting for mergers can lower estimated field strengths by up to 25% and explains suppressed modes more easily.
For masses 10¹¹–10¹³ g, PBHs reduce the decay exponent and shift gravitational wave peaks to lower frequencies.
· “Vacuum Decay and Baryogenesis Associated with Primordial Black Holes at Finite Temperature”
Regularized Richardson-Lucy algorithm detects 1% oscillations at 2.77σ with LSST Y10-like synthetic surveys.
A deconvolution of Planck, ACT and SPT data shows the small-scale excess is standard nonlinear growth.
A 0.5-meter telescope delivers a mass as precise as measurements from giant observatories
· “Sharpening the Mass Measurement of PSR J1048+2339 via High-Cadence Photometry”
Bound stellar orbits around rapidly spinning black holes produce plunge-induced mass deficits and ~1000× faster fallback, solving a…
Spatially resolved halos reveal the rotation, breaking the degeneracy with column density.
· “The Impact of Circumgalactic Rotation on Lyα Radiative Transfer”
Simulation shows gas from beyond 7000 au arrives at 10 K, potentially altering disk chemistry
Spin-down energy from a newborn neutron star explains why the supernova outshines radioactive decay alone.
· “SN 2025fhm: A central-engine powered Ic-BL supernova associated with X-ray transient EP250304a”
Phase jump and power dip at Hα ±0.30 Å confirm standing waves in the chromospheric cavity for the first time.
Pipeline redshifts misread Hα or Mg II as Lyα in 125 of 655 spectra; the correct redshifts are already in the catalogue.
· “Low-Redshift Interlopers in the SDSS DR16 z > 5 Quasar Catalogue”
Extended ionized nebula with extreme kinematics and near-solar metallicity reveals early feedback transporting metals to >4 kp，
· “AEON-z5: A Candidate AGN-driven Outflow Enriching the Circumgalactic Medium at zsimeq5.23”
