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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Multi-scale polarization maps reveal U-shaped magnetic fields aligned with accreting filaments, indicating colliding flows enhance field tension to regulate massive star formation with a derived scaling index of 0.50 +/- 0.10.
Cyclic spectroscopy provides the first direct measurement of C1 = 1.18 ± 0.01 for pulsar B1937+21, indicating a thick scattering screen ~10% of the line-of-sight distance and ruling out thin-screen and thicker geometries at >5σ.
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.
Dust ring properties correlate with embedded planet mass in 2D hydro simulations, enabling mass estimates from observations such as PDS 70.
Two-stage LLM framework infers stellar parameters and ~20 elemental abundances from spectra, showing performance gains with increasing data volume.
SPH simulations find that disk mass and size after a Uranus-forming impact are robust to EOS choice while rock fraction is highly sensitive.
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.
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