First interstellar detection of HNSO with column density (8 ± 1)×10^13 cm^{-2} and abundance ~6×10^{-10} relative to H2, proposed to form via NSO + H on icy grains.
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representative citing papers
Spectroscopic observations of six low-mass, metal-poor SLSN host galaxies reveal slow stellar-wind-driven outflows with velocities 37-104 km/s and mass-loading factors below 1 in the earliest phases of star formation.
Second-epoch JWST/MIRI-MRS mid-IR spectra of SN 1987A show little overall dust evolution but inner equatorial ring fading, rapid ejecta line changes, some ER line fading, first mid-IR H2 from ejecta, and evidence that dense Fe-rich ejecta has reached the reverse shock.
Fermi-LAT data shows gamma-ray emission from low-luminosity AGN with the subthreshold population signal consistent with star-formation dominance and individually detected sources likely powered by jets via synchrotron self-Compton emission under weakly magnetized particle-dominated conditions.
A new estimator extracts squeezed-limit f_NL from the large-scale modulation of binned cosmic shear power spectra C_ℓ(z1,z2), validated on N-body simulations with a forecasted LSST precision of σ_fNL ≃ 44.
SN 2019vxm exhibits a TESS-captured early rise with power-law index 1.41 and a 3.3 sigma coincident X-ray event consistent with shock breakout in dense asymmetric circumstellar material from a massive progenitor.
Neutrino-cooled collapsar disks in 3D GRMHD simulations lead to black hole equilibrium spins of a_eq ≈ 0.13, enabling 4-16x more powerful LGRB jets than non-radiative models.
First IXPE polarization measurement of GX 340+0 in normal branch yields PD 1.22±0.25% and PA 38±6°, consistent with origin in blackbody or Comptonized emission, with radio flux lower than in horizontal branch.
New high-redshift empirical T_e-based metallicity calibrations for strong-line ratios derived from direct oxygen abundances in 46 galaxies spanning z=1.4-8.7.
Wind data over two solar cycles shows the phase lag between A_He and SSN increases monotonically with v_SW; after lag correction, A_He matches at fixed SSN across phases and speeds.
MujicΛ augments L-BFGS optimization with projection and rank-order matching to reconstruct Gaussian initial conditions from incomplete redshift surveys, achieving good agreement with true fields on Millennium simulation mocks.
Reassessment of 12 TTV claims finds only two systems with compelling unique solutions for the perturbing planet, six with multiple viable solutions, and two with weak evidence overall.
Accounting for stellar and orbital uncertainties shows that predicted eclipse depths for bare-rock models of rocky exoplanets carry substantial uncertainty comparable to measurements, establishing a fundamental precision limit for atmospheric and compositional inferences.
Little Red Dots show no photometric or spectroscopic variability over months, creating a 5.9 sigma deficit relative to expectations for typical AGN and implying either super-Eddington accretion or no central black holes.
Paschen jumps in Little Red Dots indicate their continua originate from free-bound recombination emission in low-temperature nebular gas rather than thermalized or AGN components.
The authors deliver a combined SBCR for stars below ~16 solar masses spanning V-Ks from -0.9 to 2.1 mag with 0.025 mag scatter, plus a separate O-star relation, and verify it on an M33 eclipsing binary.
Release of 158 SPTpol AGN light curves at 90 and 150 GHz with analysis finding >10 sigma correlation between fractional intrinsic variance and mean spectral index.
High-resolution GRMHD simulations show that tearing of tilted accretion disks around rapidly spinning supermassive black holes drives order-of-magnitude variability in continuum and broad-line luminosities on months-to-years timescales, explaining changing-look AGN.
SPH simulations demonstrate viscosity-driven transitions forming NBOL, RAKED, and CENBOL boundary layers in sub-Keplerian flows onto neutron stars, extending TCAF concepts.
Derives physical parameters for 146 contact binaries, identifies extreme low and high mass ratio systems, and supports formation via angular momentum loss from detached binaries.
ArchGEM automates detection and physical characterization of scattered light noise arches in Advanced LIGO spectrograms via prominence-based peak finding and Gaussian Mixture Model clustering, reporting typical frequencies of 15-40 Hz and surface velocities of 0.2-0.5 μm/s across O3 and O4.
Three standard techniques for calculating solar surface energy and helicity injection produce inconsistent results on the same data because of differing ad hoc treatments of Doppler and transverse velocities.
Gravitational lensing cannot explain the high-mass black holes seen in LIGO-Virgo gravitational-wave data, as the proposed model is inconsistent with multiple independent observations.
Thorium abundances in 47 metal-poor stars indicate that 68% of r-process events produce Th/Eu ratios varying by only ~30%, with 5% showing variations up to a factor of ~10.
citing papers explorer
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Discovery of thionylimide, HNSO, in space: the first N-, S- and O-bearing interstellar molecule
First interstellar detection of HNSO with column density (8 ± 1)×10^13 cm^{-2} and abundance ~6×10^{-10} relative to H2, proposed to form via NSO + H on icy grains.
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Witnessing the onset of stellar winds in Super-Luminous Supernova Hosts: implications for star-formation-driven outflows in low and high-redshift galaxies
Spectroscopic observations of six low-mass, metal-poor SLSN host galaxies reveal slow stellar-wind-driven outflows with velocities 37-104 km/s and mass-loading factors below 1 in the earliest phases of star formation.
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The evolution of the mid-infrared spectrum of SN 1987A observed with the JWST/MIRI-MRS
Second-epoch JWST/MIRI-MRS mid-IR spectra of SN 1987A show little overall dust evolution but inner equatorial ring fading, rapid ejecta line changes, some ER line fading, first mid-IR H2 from ejecta, and evidence that dense Fe-rich ejecta has reached the reverse shock.
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Characterizing the Gamma-ray Emission from Low-Luminosity AGN
Fermi-LAT data shows gamma-ray emission from low-luminosity AGN with the subthreshold population signal consistent with star-formation dominance and individually detected sources likely powered by jets via synchrotron self-Compton emission under weakly magnetized particle-dominated conditions.
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Squeezed Limit non-Gaussianity Estimation with Cosmic Shear
A new estimator extracts squeezed-limit f_NL from the large-scale modulation of binned cosmic shear power spectra C_ℓ(z1,z2), validated on N-body simulations with a forecasted LSST precision of σ_fNL ≃ 44.
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SN 2019vxm: A Shocking Coincidence between Fermi and TESS
SN 2019vxm exhibits a TESS-captured early rise with power-law index 1.41 and a 3.3 sigma coincident X-ray event consistent with shock breakout in dense asymmetric circumstellar material from a massive progenitor.
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Black Hole Spin-down in Collapsars in 3D Neutrino Transport GRMHD Simulations
Neutrino-cooled collapsar disks in 3D GRMHD simulations lead to black hole equilibrium spins of a_eq ≈ 0.13, enabling 4-16x more powerful LGRB jets than non-radiative models.
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X-ray and Radio Campaign of the Z-source GX 340+0 II: the X-ray polarization in the normal branch
First IXPE polarization measurement of GX 340+0 in normal branch yields PD 1.22±0.25% and PA 38±6°, consistent with origin in blackbody or Comptonized emission, with radio flux lower than in horizontal branch.
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Direct T_e-based Metallicities of z=2-9 Galaxies with JWST/NIRSpec: Empirical Metallicity Calibrations Applicable from Reionization to Cosmic Noon
New high-redshift empirical T_e-based metallicity calibrations for strong-line ratios derived from direct oxygen abundances in 46 galaxies spanning z=1.4-8.7.
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Helium Variation Across Two Solar Cycles Reveals A Speed-Dependent Phase Lag
Wind data over two solar cycles shows the phase lag between A_He and SSN increases monotonically with v_SW; after lag correction, A_He matches at fixed SSN across phases and speeds.
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Mujic{\Lambda}: Reconstructing Initial Conditions from Incomplete Redshift Surveys with Projected Optimization
MujicΛ augments L-BFGS optimization with projection and rank-order matching to reconstruct Gaussian initial conditions from incomplete redshift surveys, achieving good agreement with true fields on Millennium simulation mocks.
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TTV-Not-So-Fast: Uniqueness and Degeneracy in Perturbing Planet Parameters
Reassessment of 12 TTV claims finds only two systems with compelling unique solutions for the perturbing planet, six with multiple viable solutions, and two with weak evidence overall.
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Uniform Reinterpretation of Rocky Exoplanet Secondary Eclipse Observations and the Impact of Stellar and Orbital Uncertainties
Accounting for stellar and orbital uncertainties shows that predicted eclipse depths for bare-rock models of rocky exoplanets carry substantial uncertainty comparable to measurements, establishing a fundamental precision limit for atmospheric and compositional inferences.
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How I Wonder What You Are -- JWST's Little Red Dots do not TWINKLE
Little Red Dots show no photometric or spectroscopic variability over months, creating a 5.9 sigma deficit relative to expectations for typical AGN and implying either super-Eddington accretion or no central black holes.
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Paschen Jumps in Little Red Dots: Evidence for Nebular Continua
Paschen jumps in Little Red Dots indicate their continua originate from free-bound recombination emission in low-temperature nebular gas rather than thermalized or AGN components.
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Toward Early-type Eclipsing Binaries as Extragalactic Milestones: First Calibration of the SBCR from O- and B-type Stars in Detached Eclipsing Binaries
The authors deliver a combined SBCR for stars below ~16 solar masses spanning V-Ks from -0.9 to 2.1 mag with 0.025 mag scatter, plus a separate O-star relation, and verify it on an M33 eclipsing binary.
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The South Pole Telescope AGN Monitoring Campaign: First Release of SPTpol Bright AGN Light Curves
Release of 158 SPTpol AGN light curves at 90 and 150 GHz with analysis finding >10 sigma correlation between fractional intrinsic variance and mean spectral index.
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Changing-Look AGN Powered By Disk Tearing
High-resolution GRMHD simulations show that tearing of tilted accretion disks around rapidly spinning supermassive black holes drives order-of-magnitude variability in continuum and broad-line luminosities on months-to-years timescales, explaining changing-look AGN.
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Timing Properties of Shocked Accretion Flows around Neutron Stars -- II. Viscous Disks and Boundary Layers
SPH simulations demonstrate viscosity-driven transitions forming NBOL, RAKED, and CENBOL boundary layers in sub-Keplerian flows onto neutron stars, extending TCAF concepts.
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Physical Parameters of 146 Contact Binaries Derived from Light and Radial Velocity Curves
Derives physical parameters for 146 contact binaries, identifies extreme low and high mass ratio systems, and supports formation via angular momentum loss from detached binaries.
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ArchGEM: an Advanced Data Analysis Tool for Analyzing Scattered Light Noise in LIGO
ArchGEM automates detection and physical characterization of scattered light noise arches in Advanced LIGO spectrograms via prominence-based peak finding and Gaussian Mixture Model clustering, reporting typical frequencies of 15-40 Hz and surface velocities of 0.2-0.5 μm/s across O3 and O4.
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Towards a Robust Estimate of the Solar Photospheric Poynting Flux and Helicity Flux
Three standard techniques for calculating solar surface energy and helicity injection produce inconsistent results on the same data because of differing ad hoc treatments of Doppler and transverse velocities.
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Could the high-mass black holes from gravitational-wave observations be explained by lensing?
Gravitational lensing cannot explain the high-mass black holes seen in LIGO-Virgo gravitational-wave data, as the proposed model is inconsistent with multiple independent observations.
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The $R$-Process Alliance: Actinide Abundances, Variation, and Evolution in Metal-Poor Stars
Thorium abundances in 47 metal-poor stars indicate that 68% of r-process events produce Th/Eu ratios varying by only ~30%, with 5% showing variations up to a factor of ~10.
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Beyond Mass and Multiscale Environments: What Shapes Low Surface Brightness Galaxies? Evidence from MaNGA
LSB galaxies exhibit lower stellar surface density, star formation rates, and metallicities than mass- and environment-matched HSB galaxies, indicating that internal evolution dominates over large-scale environment in shaping their properties.
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Searching for Contact Binaries with LAMOST and TESS
A TESS-LAMOST search produces a catalog of 1,281 contact binary candidates including 266 newly reported systems.
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Non-thermal Synchrotron Emission and Polarization Signatures during Black Hole Flux Eruptions
Non-thermal electrons with anisotropic pitch angles during flux eruptions produce flux outbursts, localized brightening, and suppressed linear polarization in black hole disk images.
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Evaluating the Prospects of Cyclic Deconvolution across 312 Pulsars
uGMRT ranks as the best current instrument for cyclic spectroscopy of pulsars, with the 80-300 MHz band optimal for most of the 312 sources examined.
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Moderate Nesting and Cross-Equatorial Asymmetry of Active Regions in Solar Cycle 24
Solar Cycle 24 shows moderate nesting of active regions with 41-48% of magnetic flux in short-lived hemispheric nests and strong cross-equatorial asymmetry.
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BOOM and Babamul: a real-time, multi-survey, optical alert broker system operating at scale
BOOM is a new high-throughput alert broker using Rust, MongoDB, Valkey and Kafka that matches prior ZTF features at ~7x speed and is extended as Babamul for LSST's 20 million nightly alerts.
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Characterizing the host galaxies and delay times of Ca-rich gap transients vs 91bg-like SNe and normal Type Ia SNe
Ca-rich gap transients and 91bg-like SNe occupy similar massive quiescent host parameter space with peak delay times around 10^4 Myr, unlike normal Type Ia (~10^3 Myr) and Type II (~10 Myr) SNe.
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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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Discovery and Timing of 49 Pulsars from the Arecibo 327-MHz Drift Survey
Reports timing solutions and basic properties for 49 pulsars (18 new) from the AO327 survey, with emission feature notes and model comparisons for distances.
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McFACTS II: Mass Ratio--Effective Spin Relationship of Black Hole Mergers in the AGN Channel
Monte Carlo simulations of AGN-disk black hole mergers identify dense, moderately short-lived disks, a steep initial mass function, and mostly prograde orbits as the parameter combination that reproduces the observed (q, χ_eff) anti-correlation.
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Particle Acceleration Time due to Turbulent-Induced Magnetic Reconnection
Simulations of turbulent reconnection in relativistic jets show energy-independent acceleration time in the Fermi regime matching theory up to a Larmor radius threshold set by current sheet thickness, then energy-dependent drift regime.
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Turbulence properties and kinetic signatures of electron in Kelvin-Helmholtz waves during a geomagnetic storm
MMS observations document turbulence spectra and electron-scale reconnection signatures inside Kelvin-Helmholtz waves during a geomagnetic storm.
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The effect of spectral resolution on biosignature detection via reflected light observations of the Earth through time
Nominal HWO resolutions suffice to detect key biosignatures across Archean to Phanerozoic Earth atmospheres, with O3 enabling indirect low-O2 detection and NIR resolution preventing CO2-CO false positives.
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PISP: Projected-Space Inference of Stellar Parameters
PISP projects high-dimensional spectra into optimized subspaces using PCA or active subspaces plus L1 selection to raise accuracy and speed of stellar parameter inference over standard methods.
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Sparks II: Panchromatic SED modeling and galaxy physical properties across the starburst to post-starburst sequence
Panchromatic SED modeling yields SFRs with smaller offset and scatter than optical-only fits for starburst to post-starburst galaxies, while Prospector AGN torus models distinguish AGN but underpredict luminosities by an order of magnitude.
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What's the (RV) Point? A $3.5\times$ Enhancement in Super-Jupiters with Saturn-like Periods from a Critical Observation
A single critical RV observation enhances recovery of long-period super-Jupiters by 3.5 times for Saturn-like periods in injection-recovery tests bridging HIRES and KPF baselines.
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Early Planet Formation in Embedded Disks (eDisk). XIX. Structures of molecular outflows
ALMA data classify 15 protostellar CO outflows into three morphological types, revealing misalignments and time variability in outflow directions.
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EP250827b/SN 2025wkm: An X-ray Flash-Supernova Powered by a Central Engine and Circumstellar Interaction
EP250827b/SN 2025wkm is an X-ray flash supernova at z=0.1194 powered by a long-lived magnetar and disk winds interacting with extended circumstellar medium, without an on-axis relativistic jet.
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Probing the origin of the kilonova candidate GRB 230307A: analysis of host galaxy and offset
Host galaxy analysis rules out a globular cluster origin for the GRB 230307A kilonova and shows a disk-formed BNS merger with natal kicks can reach the observed offset in only 0.1% of population-synthesis realizations.
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Changing-Look Active Galactic Nuclei in SDSS-V: Host-Galaxy Properties and Black-Hole Scaling Relations
CL-AGNs follow the usual M_BH-sigma_* and M_BH-M_* scaling relations of inactive galaxies with typical host stellar populations, indicating they are a phase of normal AGN activity rather than a distinct population.
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Jets and spectral states with three-components of accretion flow around a black hole
Proposes a three-component accretion flow model (cool disk plus two hot flows) to explain all spectral states, transitions, and jet behavior in black hole X-ray binaries, including a new jet generation scenario.
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Close-in sub-Neptunes reveal the past rotation history of their host stars: atmospheric evolution of planets in the HD3167 and K2-32 planetary systems
Bayesian atmospheric escape modeling constrained by observed planet radii infers high early irradiation (40-130x solar) for HD3167 and low (0.5-4x solar) for K2-32 at 150 Myr.
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The supersoft X-ray transient ASASSN-16oh as a thermonuclear runaway without mass ejection
ASASSN-16oh is interpreted as a non-ejective thermonuclear runaway on a 1.1 solar-mass white dwarf accreting at 3.5-5e-7 solar masses per year, with luminosity suppressed by an optically thick disk.
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Catalog of Chromium, Cobalt, and Nickel Abundances in Globular Clusters and Dwarf Galaxies
Catalog of [Cr/Fe], [Co/Fe], [Ni/Fe] abundances for 4113 stars in globular clusters and dwarf galaxies derived from Keck/DEIMOS medium-resolution spectra with reported median uncertainties.
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An ALMA search for substructure and fragmentation in starless cores in Orion B North
ALMA survey finds 4 starless cores in Orion B North consistent with turbulent collapse simulations; virial analysis indicates Chamaeleon I cores are less bound with external pressure dominating unlike Orion B North and Ophiuchus.
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Dust and Volatiles in the Disintegrating Comet C/2019 Y4 (ATLAS)
Spectroscopic observations of disintegrating comet C/2019 Y4 (ATLAS) classify it as a typical Oort cloud comet with less dust, where porous dust accounts for its slightly red reflectivity gradient of ~5% per 1000 Å.