A triple-star channel with two common envelope evolution phases produces merging black hole binaries with positive average χ_eff and a tail of negative values.
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Observations of Raman-scattered He II lines in RR Telescopii reveal distinct velocities tracing different H I depths and temporal declines in conversion efficiency, implying the neutral region needs complex radiative transfer models beyond a single column density.
Depositing stellar luminosity in an inner shell and cooling low-density outer cells produces a stable pulsating 3D red supergiant model for common envelope simulations without relaxation.
Hydrodynamic simulations of three pairs of jittering jets in a CCSN reproduce the ring-and-bar morphology of SNR G11.2-0.3.
The review identifies and discusses key unsolved problems in planetary nebulae such as 3D morphology, multipolar origins, dust distribution, binarity, and the abundance discrepancy, along with suggested future directions.
citing papers explorer
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Stellar black hole binaries from two common envelope evolution phases in triple stellar systems
A triple-star channel with two common envelope evolution phases produces merging black hole binaries with positive average χ_eff and a tail of negative values.
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High-Resolution Spectroscopy of Raman-scattered He II Lines in the Symbiotic Nova RR Telescopii
Observations of Raman-scattered He II lines in RR Telescopii reveal distinct velocities tracing different H I depths and temporal declines in conversion efficiency, implying the neutral region needs complex radiative transfer models beyond a single column density.
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Building three-dimensional giant stellar models for common envelope simulations
Depositing stellar luminosity in an inner shell and cooling low-density outer cells produces a stable pulsating 3D red supergiant model for common envelope simulations without relaxation.
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Reproducing morphological features in the supernova remnant G11.2-0.3 by simulating jittering jets
Hydrodynamic simulations of three pairs of jittering jets in a CCSN reproduce the ring-and-bar morphology of SNR G11.2-0.3.
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Current Unsolved Problems in Planetary Nebulae Research
The review identifies and discusses key unsolved problems in planetary nebulae such as 3D morphology, multipolar origins, dust distribution, binarity, and the abundance discrepancy, along with suggested future directions.
- The jet-shaped pipe morphology in planetary nebulae and core-collapse supernova remnants