Category: Astrophysics
Turbulent black hole coronae can produce observed X-ray spectra
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in AstrophysicsSimulations show turbulent black hole coronae generate two-temperature plasmas with extended nonthermal ion distributions while producing observed X-ray spectra.
Lorentz violation changes black hole disk images and polarization
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in AstrophysicsObservable signatures of Lorentz violation in Hořava gravity revealed through black hole accretion disk images and polarization patterns, testable with future Event Horizon Telescope observations.
Review compares methods for simulating fuzzy dark matter
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in AstrophysicsReview of numerical simulation methods for fuzzy dark matter, examining wave-based and fluid-based algorithms for resolving ultralight boson dynamics on galactic scales.
Black hole merger spins peak near perpendicular
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in AstrophysicsAnalysis of gravitational-wave data reveals that merging black holes predominantly exhibit near-perpendicular spin orientations, suggesting most form in triple-star systems.
Magnetic charge changes orbits and waveforms near regular black holes
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in AstrophysicsStudy explores how magnetic charge in regular black holes alters gravitational waveforms from periodic orbits, offering new constraints on black hole properties through gravitational wave.
DM Tau disk shows non-thermal line broadening
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in AstrophysicsBayesian analysis of molecular line observations confirms nonthermal broadening of 0.4 sound speeds in the DM Tau protoplanetary disk, providing evidence for turbulence.
Deep Chandra observations of a relaxed z = 1.16 galaxy cluster
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in AstrophysicsChandra X-ray observations of SPT-CL J2215-3537 resolve the cool core of this z = 1.16 relaxed galaxy cluster, establishing a high-redshift benchmark for cluster evolution studies.
Shock precursor type changes ion and electron acceleration
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in AstrophysicsSimulations reveal two distinct regimes in transrelativistic shocks where competing plasma instabilities produce dramatically different particle acceleration efficiencies for ions and electrons.
Supermassive stars may match JWST little red dot spectra
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in AstrophysicsSupermassive star models reproduce spectral signatures of JWST little red dots, suggesting these compact sources may be progenitors of the first supermassive black holes.
RUBIES finds many massive quiescent galaxies at 2 < z < 5
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in AstrophysicsSpectroscopic observations confirm that massive quiescent galaxies were surprisingly common at redshifts 2-5, challenging galaxy formation simulations.
