SOFIA observations provide the first experimental magnetic-dipole hyperfine constants for [13C II] and refined centroid frequency using astronomical data.
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- background 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 ∈[9,14.5] (log(h −1M⊙)), for the cosmological parameters: σ8 ∈
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astro-ph.GA 83 astro-ph.HE 38 astro-ph.CO 17 astro-ph.EP 15 astro-ph.SR 12 astro-ph.IM 7 gr-qc 2 cs.LG 1 physics.plasm-ph 1 stat.ML 1roles
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Spectroscopic members of the M92 stream yield a Milky Way bar pattern speed of 29.1 +0.7/-0.4 km s^{-1} kpc^{-1}.
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Cosmic ray transport in molecular cloud simulations boosts star formation efficiency by up to 43% and yields a top-heavier IMF with a high-mass slope shallower by ~20%.
First implementation of the complete Braginskii magnetized viscosity tensor in FLASH shows it damps vortices, converts kinetic energy to heat, reduces Rayleigh-Taylor growth, and preserves yield in MagLIF-relevant runs.
Massive black hole binary mergers produce orphaned low-frequency signals in PTA pulsar terms that can be stacked for archival multiband gravitational-wave detection.
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New JWST and Keck data on off-nuclear TDE 2025abcr show shifting emission-line velocities from a changing reprocessing layer and an IR power-law slope of -2.13 that is consistent with either reprocessing gas or a young stellar cluster of mass ~10^7.6 solar masses.
The double-white-dwarf model for sources like CHIME/ILT J1634+44 predicts a beat-period drift of |P_b dot| ~ 10^{-10} s s^{-1}, producing tens of seconds of O-C timing drift in one year and enabling a minimal falsifiable test via joint period and derivative measurements.
First obliquity measurement in an M dwarf binary shows alignment, with tentative evidence that aligned orbits around cool stars and wide separations also hold for brown dwarfs and binaries.
Simulations indicate the Balmer decrement can serve as a diagnostic to identify inflowing gas in front of face-on galaxies, showing a mean front-back offset of approximately -0.14 despite scatter from clumpy dust.
Filament dark matter density profiles become nearly universal when scaled by terminal halo virial radii, with the inner cusp produced by embedded halos and the smooth component showing a flat core that evolves from smooth to clumpy accretion.
Bar pattern speeds anti-correlate with stellar and total dynamical mass in 30 galaxies, placing the slowest bars in the most massive systems and supporting angular momentum transfer to dark matter.
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