XRISM/Resolve data on Mrk 509 show a tentative 3.6-sigma infalling absorber at 11000 km/s located within thousands of gravitational radii, interpreted as raining clumps from a failed wind.
Title resolution pending
8 Pith papers cite this work. Polarity classification is still indexing.
8
Pith papers citing it
representative citing papers
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.
The authors derive and calibrate analytical criteria, using a hydrogen-oxygen toy model and Cloudy simulations, that classify X-ray absorption states in photoionized gas across Thomson-thin and moderate-thick regimes, including scattering and boundary effects.
Requiring thermal stability and single-valuedness in the thin-disk Ṁ-Σ plane produces a viscosity law α(X) with X = P_gas/P_rad that eliminates the radiation-pressure dominated instability while preserving the effective-temperature profile.
New XRISM observations confirm a highly broadened, pulsating Fe K line from the accretion column of Hercules X-1 that varies with pulse phase and evolves with the 35-day precession cycle.
RGS spectra of V4641 Sgr reveal narrow N and O lines from a dense, multi-phase, photoionized disk atmosphere with log ξ ≈ 3.1 and 0.36 and velocities 540-720 km/s.
Black hole spin constraints for Cyg X-1 from XRISM Resolve data are strongly model-dependent, ranging from a*~0.99 with relxill to a*~0 with relxillCp or reflkerrD.
HST observations infer ~500 solar masses of inflowing low-metallicity gas in M81's central parsec that can sustain its advection-dominated accretion flow for 10^5 years.
citing papers explorer
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Inflowing Gas in the Central Parsec of M81
HST observations infer ~500 solar masses of inflowing low-metallicity gas in M81's central parsec that can sustain its advection-dominated accretion flow for 10^5 years.