IXPE measures 7.9% polarization in 4U 1822-37 with energy dependence and eclipse variation consistent with scattering in an extended corona at high inclination.
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8 Pith papers cite this work. Polarity classification is still indexing.
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A lens model from Gaia DR3 and HST data combined with a Bayesian test on Chandra observations constrains the X-ray emission origin in lensed quasar J0659 to a 0.020 × 0.010 arcsec ellipse offset 0.014 arcsec from the optical source at 1σ.
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.
XRISM spectroscopy of NGC 4388 shows the Fe Kα line arising from the torus, inner torus edge, and BLR at distinct radii, with absorption revealing a gravitationally bound failed wind.
New observations of 4U 1323-62 detect 12 bursts, confirm 2.94-hour dips, a 0.9 Hz QPO, and suggest a ~10-year cyclic variation in burst rate.
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.
XSPECT observations of two soft X-ray transients during outburst decay reveal superburst evolution with cooling blackbody emission and a flux-dependent hardening of Comptonized spectra.
citing papers explorer
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The first IXPE view of the eclipsing ADC source 4U 1822-37
IXPE measures 7.9% polarization in 4U 1822-37 with energy dependence and eclipse variation consistent with scattering in an extended corona at high inclination.
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Determining the spatial origin of X-ray and optical emission in the $z = 3.1$ strongly lensed radio-quiet quasar GraL J065904.1+162909 to hundreds of parsecs
A lens model from Gaia DR3 and HST data combined with a Bayesian test on Chandra observations constrains the X-ray emission origin in lensed quasar J0659 to a 0.020 × 0.010 arcsec ellipse offset 0.014 arcsec from the optical source at 1σ.
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Simulation-Based Prediction of Black Hole Fe K$\alpha$ Line Profiles
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.
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Complex Nuclear Structure in Seyfert 2 Galaxy NGC 4388 Revealed by XRISM Observation
XRISM spectroscopy of NGC 4388 shows the Fe Kα line arising from the torus, inner torus edge, and BLR at distinct radii, with absorption revealing a gravitationally bound failed wind.
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A Cyclic Burst Rate Behavior of a Persistent X-ray Burster: Recent XMM-Newton and NuSTAR Observations of 4U 1323-62
New observations of 4U 1323-62 detect 12 bursts, confirm 2.94-hour dips, a 0.9 Hz QPO, and suggest a ~10-year cyclic variation in burst rate.
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XRISM/Resolve observations of Hercules X-1: a pulsating, highly broadened Fe K emission line from the neutron star accretion column
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.
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Tracing the outburst decay of soft X-ray transients Aql X-1 and 4U 1608-52 with XSPECT
XSPECT observations of two soft X-ray transients during outburst decay reveal superburst evolution with cooling blackbody emission and a flux-dependent hardening of Comptonized spectra.
- The Effects of Complex Accretion Disk Geometry on Broadened Iron K$\alpha$ Lines