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Photo: Halo, moon dogs and parhelic circle around the Moon
Halo, moon dogs and parhelic circle around the Moon
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 News from astronomynow.com
› Happy New Year, Mars! The Red Planet is turning 39
› 3I/ATLAS was born in the deep freeze
› Roman Space Telescope launches on mission to survey the Universe
› JWST’s ‘impossible’ early galaxies may be even more massive than we thought
› How to observe the 12 August 2026 solar eclipse
› Falcon 9 lunar impact: More than a new crater
› Euclid opens a new window on the first billion years of cosmic history
› Caught in the act: the wind that could kill a galaxy
› Europe’s Mars rover may land in the remains of a vast ancient water system
› Moon dust preserves record of life’s building blocks
RSS  Latest preprints on astro-ph:
› Relaxation of a Vlasov gas to an inhomogeneous state due to phase space mixing in an axisymmetric potential: A Newtonian analogy of the Kerr orbital motion
› Classification of X-ray Binaries in NGC 6946 with the use of Multiwavelength Data
› An Assessment of the Triangulation Capabilities of a Multi-Site All-Sky Infrared Camera Array
› Power-law Coupling and Mock Validation of a Surface-density Anisotropy Diagnostic for 85 Rich Galaxy Clusters
› Deriving the Continuous $\beta$-FPUT Model for Decayless Solar Coronal Oscillations Directly from Resistive MHD
› The variable mass-loss in low-mass red giant stars: Chromospheric motion across stellar evolution in 47 Tuc
› BRICS Southern Observatory (BRICS-SO) Project: Invitation to African countries to invest in Chile
› XuYi Interferometer Observation Simulator
› A Technosignature Survey Of The Anti-Solar Point: The SETI Institute's Largest-Ever Campaign With The Allen Telescope Array
› EMIR confirmation of the high-z Ly{\alpha} blob SHARDS20018464
› Armillary: A Label-Free Coordinate System for Stellar Spectra
› Probing departures from Schwarzschild geometry with the S301 star and kilometre-baseline interferometry
› First Direct Identification of a Multi-Star Microlens System Hosting a Planet
› Optimal Photon Counting with Fast, Low Noise Astronomical Imagers
› Cracking open the "dragon egg": ALMA 1.3mm observations of a compact, young high-mass core candidate at 30mas resolution
› And Then There WEre Baryons (ATWEB): The Baryon Budget of the Universe in Halos and the IGM over 13 Billion Years of Cosmic Time
› Unlocking new information in stellar circular polarisation with second-order least-squares deconvolution
› Detecting multiple planets in Gaia data using Bayesian model selection
› Uncovering the Physical Origins of Black Holes in the Milky Way for Astronomical Surveys
› Power-Law Injection Spectrum from an Ensemble of Reconnecting Current Sheets
› Discovery of a second-generation planet candidate accreting onto a white dwarf
› DIGging into HII regions: the role of ionizing photon leakage and spectral hardening in coupling HII regions and diffuse ionized gas
› Molecular hydrogen formation on dust: The impact of gas-dust drift on formation efficiency
› Enhancing the Interpretability of Radial Velocity Analysis Using Leave-one-out Cross-validation
› Spectroscopic Confirmation of the Milky Way Satellites Bo\"otes V and Leo Minor I and the LMC Satellite DELVE 2: Three Small Ultra-Faint Dwarf Galaxies
› Hierarchical Black Hole Mergers at High Redshift: Predictions for LISA and LGWA from SEEDZ
› Exploring the ultrahot Neptune LTT 9779 b with CRIRES+. Non-detection of helium transmission spectra and detection of H$_2$O on the dayside
› Radial Modes of Hot Neutrino-Trapped Hybrid Stars
› Lensing in the Blue IV: The First Weak Gravitational Lensing Maps from the Stratosphere
› Chana: A GPU-Accelerated AMR GRRMHD Code
› Multiple H I 21-cm absorbers towards blazar PKS 1158+007
› Complex Organic Molecules in Protostars with ALMA Spectral Surveys (COMPASS) VII. First interstellar detection of fully deuterated methanol
› Investigating X-ray Emission from Radio-detected Broad- and Narrow-line Seyfert 1 Galaxies
› A spatially resolved view of Fast Radio Burst host metallicities with Integral-field Spectroscopy
› A Classifier Framework for ALMA Bandpass Calibration Anomalies
› The universal thickness of mid-infrared bubbles
› SPECULATE: A synthetic spectral library, emulator and fitting package for accretion disc winds -- Infrastructure and application to CVs
› Occam's Razor and a Three-Family Ultralight Fermionic Dark Matter Model
› Tracing the main belt origins of S-complex near-Earth objects: From space mission targets to meteorite sources
› BRAHMa: Bar Recognition And Hatching using Machine learning -- a framework for oriented bounding box detection of galactic bars
› Axial-Dipole and Equatorial-Dipole Coronal Holes: Congruent Magnetic Geometry, Divergent Evolution
› Adaptive proposals for nonparametric equation-of-state inference with RIFT: iterative Gaussian-process refinement in a compressed sequence representation
› Life in the Cosmic Neighbourhood: Galactic Habitable Zones in the EAGLE Simulations
› Complex Organic Molecules in Protostars with ALMA Spectral Surveys (COMPASS) III. CH$_3$OH isotopic fractionation in the low-mass protostar BHR71-IRS1
› The Rogue One: A Dark Matter-Dominated Dwarf in the Trail of Dark Matter-Deficient Galaxies
› High-Angular-Resolution Survey of Stars within 18 pc of the Sun: Part I
› The First Decade of Breakthrough Listen
› Barium and europium abundances from the Gaia-ESO Survey using The Cannon
› Stirred, not shaken: Dislodging $\omega$ Centauri from the Sausage galaxy through bar resonances
› Discovery of 2 km ultra-fast rotating asteroid in Rubin DP2 catalog via varying Fourier order method
› Radiation pressure powers quasar broad absorption line winds but fails to drive galaxy feedback
› Hubble Space Telescope Observations of Active Asteroid (101955) Bennu
› The Role of the Cosmic Web in Galaxy Evolution Across 0.4
› Very Long Baseline Interferometry with the SKA Observatory
› A Graph Attention Network Framework for Simultaneous Prediction of Galaxy and Dark Matter Halo Properties in GAMA DR4
› COSMOS-3D: Spectro-photometric Confirmation of Shabgard, a Cool, Metal-poor Brown Dwarf in the COSMOS Field
› Complex Organic Molecules in Protostars with ALMA Spectral Surveys (COMPASS): I. Overview of the ALMA Large Program
› Stochastic Bubble Completion in de Sitter Space: Power Spectrum, Bispectrum, and Infrared Moment Hierarchies
› Chaotic accretion can (still) explain early supermassive black hole growth
› Optimizing Laguerre-Gaussian Mode Interferometry in Gravitational-Wave Detectors through Modal Degeneracy Breaking
› Scalable and sequential inference of the neutron star equation of state with the Einstein Telescope
› Fast and accurate differentiable code of the galaxy power spectrum based on Eulerian and Lagrangian one-loop perturbation theories
› Does Diffusive Shock Acceleration Reach Steady State? Insights from a Near-Sun Shock Observed by Parker Solar Probe
› Third-order scalar induced gravitational waves during a matter-dominated era: secular growth and implications for primordial black hole domination
› HD 715 b, a Warm Jupiter Orbiting a Massive Subgiant Discovered from a Single TESS Transit
› Probing beyond the Cosmic Horizon
› Early galactic heavy element production - a phenomenological approach
› Exploring an X1.8 flare and associated quasi-periodic pulsations using SDO and Aditya-L1 observations, alongside NFFF extrapolation
› Ariel Tier 3 Observations: An Opportunity to Explore both Stellar and Planetary Variability through Broad Wavelength Time-domain Spectroscopy
› Complex Organic Molecules in Protostars with ALMA Spectral Surveys (COMPASS) VI. Discovery of a class I methanol maser transition and its association with acetaldehyde
› Evolution of neutrino distributions under repeated electron scattering
› Starspots on weak-lined T Tauri stars in the sigma Orionis cluster
› Complex Organic Molecules in Protostars with ALMA Spectral Surveys (COMPASS) II. Approach to data reduction and products for line-rich broadband (sub)millimeter spectra
› Blinding Lights: Simulation-Based Evidence for Terrestrial Giant Impacts as Astronomically Observable Events
› X-ray spectral scaling of black hole mass in quasi-periodic eruptive source RX J1301.9+2747
› Probing turbulence in the ionized interstellar medium using young pulsars. I. Dispersion measure variations
› ApPolLO: Apertif counterparts of Polarised LOFAR sources
› The $\mathrm{[O\ III]}\lambda5007$ Equivalent Width as an Ionization-Parameter Diagnostic Across Cosmic Time
› The impact of feedback and cosmology on Cosmic Infrared Background cross-correlations
› Rapid Sequence Cost Evaluation for Multi-Spacecraft Rendezvous: A Permutation-Invariant Set Transformer
› Predicting High-Energy neutrino emission from X-ray absorption in CSM-interacting SNe
› Reflex instabilities I: Boundaries makes grid-based disc simulations frame-dependent
› Reflex instabilities II: The reflex motion of the central object drives at least seven instabilities in accretion discs
› The Potential Contribution of Radiative Supernova Remnants to the Local Cosmic Ray Spectrum
› Mapping of interstellar ices with JWST in protostellar envelopes: Spatial variations of $^{13}$CO$_2$, $^{12}$CO$_2$, CO, OCN$^-$ and H$_2$O ice
› Assessing transitional pulsar candidates through a quantitative estimation of their light-curve similarity
› Stochastic effect on ultralight dark matter searches with astronomical polarized sources
› SOPHIE and TESS characterization of fourteen TESS Objects of Interest: nine planetary systems and five low-mass stellar companions
› It Takes Two: nucleosynthesis in core-collapse supernova simulations of binary-star progenitors
› Unveiling the Accretion Architecture of GS 1354--64: A Broadband X-ray and Polarimetric Study of its 2025--2026 Outburst
› Nancy Grace Roman Space Telescope Wide Field Instrument: Grism Saturation Response to Bright Sources during Thermal-Vacuum Testing
› Boosted Odds: Lower-Point Probes of Parity Violation with Momentum Fields
› Galaxy merger-driven signatures in massive black hole pair hosts across cosmic time
› When, Why, and How CMB Compression Fails
› Halo Mass Function Constraints on Early Galaxy and AGN Populations in the JWST Era
› Space-based Cosmic Neutrino Measurements
› Mitigating prior-volume effects in galaxy clustering by adopting Mpc over Mpc/h units
› Complex Organic Molecules in Protostars with ALMA Spectral Surveys (COMPASS) -- IV. Methyl cyanide isotopologues toward BHR71-IRS1
› Coronal Mass Ejections from the Young Sun: Deceleration-Powered Solar Energetic Particles as a Self-Extinguishing Forcing of the Early Earth
› Parameter degeneracy and information loss in inverse flavor mapping for high-energy astrophysical neutrinos
› The pseudospectrum for gravitational perturbations in Kerr spacetimes
› Lunar radio emission from dark photon dark matter
› Coherent versus incoherent amplification: from parametric resonance to the kinetic regime in stimulated axion decay
› Magnus: neutrino oscillation probabilities for any Hermitian Hamiltonian, any number of flavors, and any matter profile
› Spectator Dark Matter and the Higgs Portal
› Time-Frequency Analysis for LISA: Galactic Foreground Modulation
› Axion Pyramid
› The neutrino magnetic moment and supernovae with strong magnetic fields
› Flavor decoherence and washout timing in nonthermal leptogenesis after inflation
› Gravitational Waves and Nambu-Goldstone Bosons from Infrared-Finite Cosmic Strings
› Decoy and disclosure radii of invariant shape descriptors
› Line-of-sight Acceleration Driven Effects in Eccentric Compact Binary Coalescences
› Line-of-Sight Acceleration-driven waveform corrections for unequal-mass compact binary coalescences
› Universal Relations Meet Causality: Bounding the Dynamical Love Number of Neutron Stars
› Constraining the gravitational-wave breathing mode with LVK antenna patterns and GWTC data
› LISA Sensitivity and SNR Calculations
› Superluminous supernova search with PineForest
› Extreme superluminal expansion traces an ultra-narrow GRB jet across relativistic regimes
› Black Holes in the Red-sequence Elliptical Galaxies at Redshifts $\sim 0.7-2.5$: Not Dark Energy Source but Remnants of Little Red Dots
› A dense dark matter core of the subhalo in the strong lensing system JVAS B1938+666
› Exploring a Cosmic-Ray Inverse-Compton Origin to the SZ-to-X-Ray Pressure Deficit in the Cool Core Cluster ZwCl 3146
› Impact of Magnetic Field Topology on Electromagnetic and Gravitational Waves from Binary Neutron Star Merger Remnants
› Euclid: Impact of halo mass-conversion model assumptions on galaxy cluster number-count analyses
› High-Precision Differential Radial Velocities of C3PO Wide Binaries: A Test of Modified Newtonian Dynamics (MOND)
› Banana Split: Improved Cosmological Constraints with Two Light-Curve-Shape and Color Populations Using Union3.1+UNITY1.8
› Unraveling the mysteries of Jets in peculiar NLSy1 galaxies through multi-wavelength variability
› Searching for outbursts from Symbiotic Binaries in GOTO and ATLAS data
› Gravitational self-lensing of Fast Radio Bursts in neutron star magnetospheres: II. Applications to strong repeaters and the CHIME population
› Simulation-based inference from the Lyman-alpha forest 1D power spectrum with CAMELS
› Simulating the jittering-jets explosion mechanism: circum-jet rings account for observed core-collapse supernova remnant morphologies
› Homogeneous stellar parameters for 717,807 TESS FGK stars using Gaia DR3
› A homogeneous three-dimensional view of Molecular Cloud kinematics out to 2.5 kpc. Using Young Stellar Objects and Open Clusters as complementary tracers
› Exploring the Impact of Tilted Magnetic Dipoles on the Atmospheric Dynamics of Hot Jupiters: Towards an Improved Magnetohydrodynamic Framework
› Alleviating the Hubble Tension Using Coupled Dark Energy - Dark Matter Interaction
› Neutron star-companion interaction in core collapse supernovae. Population synthesis based on detailed binary evolution models
› Whispers of Supergravity in Gravitational Wave Backgrounds: Determining the Gravitino Mass from Cosmic Thermal History
› Probing Direct Contributions of Galaxies and AGN to Cosmic Reionization in a Quasar Field J0226+0302 with JWST NIRCam and NIRSpec
› PHANTOM: A MATLAB and Octave Toolbox Connecting Linear Field Statistics to Dark Matter Halo Observables
› Detection of relativistic orbital deformation from improved timing of PSR J1757$-$1854
› Beta-Particle Transport and Thermalization in Kilonova Ejecta with Detailed Atomic Microphysics
› Radio and X-ray Observations of the Transitional Supernova 2019yvr: Insights into the Progenitor Mass-Loss History
› The Treble Clef radio phoenix and its old nonthermal filaments
› Companion architectures of sub-Saturns: Distinct migration pathways across the Neptunian landscape
› Fast and accurate bandpass integration of complex SEDs with neural networks
› A Data-Driven Model for $r$-Process Production Patterns
› The ALMA View of the Edge-on Gomez's Hamburger System: A Highly-Dynamic, Asymmetric Protoplanetary Disk Reveals the Earliest Phases of Giant Planet Formation
› The New Dark Matter Density Profile from JWST JADES Galaxies
› Just a Phase? Weakening Vertical Shear Instability Explains Class II Disk Morphologies: Simulations with dust coagulation, sedimentation, thermal relaxation, and backreaction
› The long period radio transient ASKAP J1448-68 is a cataclysmic variable
› A Systematic Assessment of Total Stellar Mass Measurements with Spatially Resolved Photometry and Medium Bands at 1 < z < 9: The Impact of Mass-to-Light Variations and Outshining
› Improved Constraints on the Surface of LHS 3844 b from its Mid-Infrared Spectrum
› Discovery of the Lyman-$\alpha$ Forest in a Star-Forming Galaxy at $z \approx 7.57$: Implications for the Timing and Topology of Cosmic Reionization
› Deep radio characterization of the supernova remnant G343.1-00.7
› Vector field dark matter search with Sagnac interferometer
› Pulsations and constraints on time lags in two distinct ULXs: NGC 5204 X-1 and NGC 55 ULX-1
› Irradiated Atmospheres VII. Effect of Mixing Energy Flux on Atmosphere-Interior Coupling
› From the Milky Way to the Early Universe: How Metallicity Shapes the Formation of Double Neutron Stars
› Einstein ring fingerprint around supermassive black holes illuminated by broad line region spectral lines
› Rotation of the polarization plane in axion fields: application to neutron star polar cap regions
› Analytic Approximations for Fermionic Preheating
› Implications of the LISA stochastic signal from eccentric stellar mass black hole binaries in vacuum
› Polarization Analysis of Ringdown Signals
› Detector orientation matters: Consequences for gravitational-wave background detectability
› Stochastic template banks for GW searches using low-discrepancy sequences
› Building a Better Beta: Nucleation and Timescales in Cosmological Phase Transitions

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