JWST spectra of SN 2024abup show CO, C, O, and Mg features plus possible dust emission, with no clear r-process signatures identified via SUMO modeling.
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Comparison of environmental trends in H I gas mass fraction and specific star formation rate
Mixed citation behavior. Most common role is background (48%).
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- background provide an internal consistency test of GR through independent waveform reconstruction and binary parameter estimation. Future work could extend the LILA selection function presented in this paper to make astrophysical predictions, such as expected LILA detection rates and redshift evolution of black hole merger rates, using semi-analytical models (e.g., Volonteri et al. 2008; Barausse 2012; Pacucci & Ferrara 2015; Valiante et al. 2018; Dayal et al. 2019; Sassano et al. 2021; Trinca et al. 2023;
- background 2020, 2021a; Pellejero Ibañez et al. 2023; Zennaro et al. 2023; Contreras et al. 2023a; Ortega- Martinez et al. 2024). Each emulator can vary the SHAMe-SF parameters, cosmological parameters (σ8,Ω m,Ω b,n s,handM ν), redshift, and number density simultaneously within the follow- ing ranges for the SHAMe-SF parameters: β∈[0,20] γ∈[−10,25] ∆γ∈[−10,10] V1 ∈[10 1.2,10 3.5] (km/s) ∆V1 ∈[10 0.2,10 1.9] (km/s) σ∈[0,1.7] fk,(cen+sat)/2 ∈[−1,1] fk,(cen−sat)/2 ∈[−1,1] α0 ∈[0,8] αexp ∈[−8,8] (4) Mcrit ∈[9,
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citing papers explorer
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JWST observations of SN 2024abup: First Detection of CO in a broad-lined Type Ic Supernova and Constraints on r-process Nucleosynthesis
JWST spectra of SN 2024abup show CO, C, O, and Mg features plus possible dust emission, with no clear r-process signatures identified via SUMO modeling.
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The WISSHFUL program: the highest redshift UFO discovered in a non-lensed QSO
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Jets from Scratch: A 3D Dynamo Origin of Long Gamma-Ray Burst Jets
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JWST Nebular Spectroscopy of SN 2023qov: Circumstellar Dust Emission in a Normal Type Ia Supernova
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The SRG/eROSITA all-sky survey: First X-ray catalogues and data release of the western Galactic hemisphere
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First Sagittarius A* Event Horizon Telescope Results. I. The Shadow of the Supermassive Black Hole in the Center of the Milky Way
EHT data show a 51.8 microarcsecond ring around Sgr A* consistent with the shadow of a 4 million solar mass Kerr black hole viewed at moderate inclination.
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An X-ray reverberation mass measurement of Cygnus X-1
X-ray reverberation lags are used to measure the mass of the stellar-mass black hole Cygnus X-1 for the first time.
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JWST Observations of Calcium-Strong Transients: I. Complex Nebular He Emission in SN 2024uj
JWST/NIRSpec data on SN 2024uj reveal complex He I emission overlapping central Ca and O, plus CO and dust, favoring a thermonuclear origin from low-mass white dwarfs.
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Sloshing Motions in Abell 3571 Revealed by XRISM/Resolve Velocity Mapping
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Continuation of Force-Free Electrodynamics upon the loss of magnetic dominance
A null-field continuation of force-free electrodynamics, with geodesic principal null directions, is introduced and shown to match 1D PIC simulations after loss of magnetic dominance in Alfvén wave collisions and type-changing solutions.
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The impact of stellar binaries and star cluster dynamics on pair-instability supernovae
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Stellar black hole binaries from two common envelope evolution phases in triple stellar systems
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Broad-band Spectral Modeling of Large-Scale X-ray Jets in High-Redshift Quasars: An MHD-Informed Approach
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Accretion of Primordial Black Holes in Stellar Interiors
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First-Principles Turbulence-Driven Deflagration-to-Detonation Transition Mechanism for Near-Chandrasekhar Mass White Dwarf Progenitors
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Significant or Not? The Impact of Randomisation During Data Reduction on Confirming a New Pulsating Ultraluminous X-ray Source Candidate in Centaurus A
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The study of the circumnuclear environment of accreting supermassive black holes with realistic X-ray spectral models
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Type Ib Supernovae are bluer than Type Ic Supernovae
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SDSSJ110546.07+145202.4: The first long-duration radio changing-look NLS1 galaxy
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Persistence of the Millihertz X-ray Quasi-Periodic Oscillation in the Active Galactic Nucleus 1ES 1927+654
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Detection and Evolution of Linear Polarization of the Galactic Center Transient MAXI J1744-294
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Determining the spatial origin of X-ray and optical emission in the $z = 3.1$ strongly lensed radio-quiet quasar GraL J065904.1+162909 to hundreds of parsecs
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SN 2020bij and a Possible Slow-Rise High-Velocity Subclass of Type IIP Supernovae
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Polarization Architecture of Steady GRMHD Jets from the Horizon to Infinity
Steady GRMHD jets exhibit a universal near-horizon polarization pattern set only by black hole spin, with large-radius polarization angle following a collimation-determined power law and intermediate scales modified by plasma loading.
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Beta-Particle Transport and Thermalization in Kilonova Ejecta with Detailed Atomic Microphysics
Relativistic transport model for beta-particles in homologously expanding kilonova ejecta, incorporating per-species atomic data, shows non-local deposition and escape lower thermalization efficiency with analytic prescriptions supplied for light-curve codes.
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Heavy element dust explains the late-time spectra of kilonovae
Dust from refractory r-process elements forms efficiently in kilonova ejecta and explains the observed late-time infrared spectra.
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High Frequency Wideband Study of FRB 20240114A with the Allen Telescope Array
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Identifying Observational Signatures of Flux Eruption Events in Supermassive Black Hole Accretion Flows with Machine Learning
Machine learning on simulated images identifies that flux eruption events cause more diffuse, polarized, lower-flux millimeter emission with decreased Q-U loop rotation rate, achieving ~80% accuracy with random forests on summary statistics.
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MeV Gamma-Ray Lines from Radioactive Nuclei in Magnetar Giant Flares
Simulations show magnetar giant flares produce nuclei near r-process peaks whose decays create bright MeV gamma-ray lines from 88Kr and 92Sr with fluxes above 10^-8 erg cm^-2 s^-1.
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The Thousand-Pulsar-Array programme on MeerKAT XIX: Single-pulse data analysis, nulling and pulse energy distributions
Bayesian analysis of single-pulse data from 1192 pulsars finds that roughly half require multi-component energy distributions and that nulling fractions increase with spin period.
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The Curious Case of PHL 1811: Heavy Obscuration Versus Intrinsic X-ray Weakness
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Relativistic Thermal Emission from Accretion Disks in Kerr-MOG Spacetimes
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Discovery of a Candidate 2 keV Cyclotron Resonance Scattering Feature in the HLX NGC 3583 X-1
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Modeling Gamma-Ray Burst Spectra with Convolutional Neural Networks: Fast-Cooling Synchrotron Emission in a Decaying Magnetic Field
CNN emulator for decaying magnetic field fast-cooling synchrotron spectra is trained on synthetic data and used in Bayesian fits to GRB 231020A, favoring the decaying-field model over the standard version.
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The X-ray emission of the long-period transient and accreting cataclysmic variable ASKAP J174508.9-505149
X-ray timing and spectral analysis of ASKAP J174508.9-505149 detects matching periodicity and features consistent with an accreting magnetic CV.
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Dynamics and detectability of long-lived non-accretion phases for massive black hole binaries in cold, thermally regulating disks
Self-consistent thermal regulation in circumbinary disks permits long-lived non-accretion phases that suppress binary feeding rates toward the Eddington limit while leaving optical/near-IR detectability intact.
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Simulation based parameter space for shock in transonic, sub-Keplerian accretion flow onto non-rotating black holes
Multi-dimensional simulations show that the parameter space for shocks in non-dissipative transonic sub-Keplerian accretion flows is substantially larger than the analytic prediction, with dynamic boundary layers producing outflows.
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JWST Reveals Large Reservoirs of Dust and Ongoing Circumstellar Interaction in SN Ibn/Icn 2023xgo over a Year Post-Explosion
Late-time JWST spectra of SN 2023xgo detect cool silicate or carbonaceous dust masses of order 0.01-0.03 solar masses plus narrow He I emission indicating ongoing circumstellar interaction at +377 days.
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Massquerade: Impacts of Mass Ratio Reversals on Binary Black Hole Merger Rates and Mass Distributions
Mass ratio reversals produce qualitatively different contributions to BBH merger rates and masses in COMPAS versus SEVN simulations, with core-growth dominating and most systems arising from massive low-metallicity progenitors.
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Simulation-Based Prediction of Black Hole Fe K$\alpha$ Line Profiles
Fe Kα lines from accreting black holes are produced mostly outside 10 gravitational radii due to radial ionization gradients, allowing broad profiles without high spin.
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Low-Luminosity Type IIP Supernovae from the Zwicky Transient Facility Census of the Local Universe. III: Hunting for electron-capture supernovae using nebular spectroscopy
Nebular spectroscopy of low-luminosity Type IIP SNe from ZTF identifies two plausible ECSN candidates but derives an upper limit on the ECSN rate of ≲(5–8)×10² Gpc⁻³ yr⁻¹ implying a sAGB mass window narrower than 0.06 M⊙.