Composite time-delay lens modelling of JWST WFI2033–4723 yields intermediate stellar IMF normalisation and a steep gNFW inner slope γ_in≃1.3 that is robust to the choice of external cosmology.
Madison Walder, Denis Erkal, Michelle Collins, and David Martinez-Delgado
6 Pith papers cite this work, alongside 574 external citations. Polarity classification is still indexing.
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Non-Gaussian LSF shapes bias kinematic extraction from spectra; matching the LSF of templates to the target reduces dispersion bias below 1%.
Dehnen-halo parameters amplify closed-orbit scale and induce GW phase lag; for the (z,1,z-1) family, light-curve peaks equal 3z-1 at high inclination.
Five of seven modeled M31 dwarf spheroidals show anomalously low central DM densities at 150 pc, with star formation heating disfavored as the sole cause.
Derivative test on SPARC galaxies shows outer rotation curves are consistent with flat profiles rather than Keplerian taper.
citing papers explorer
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Disentangling the dark and stellar mass through precise lens modelling of the JWST observation of lensed quasar WFI2033--4723
Composite time-delay lens modelling of JWST WFI2033–4723 yields intermediate stellar IMF normalisation and a steep gNFW inner slope γ_in≃1.3 that is robust to the choice of external cosmology.
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The Impact of Non-Gaussian Line Spread Functions on Stellar Kinematic Recovery: Consequences for Dynamical Models
Non-Gaussian LSF shapes bias kinematic extraction from spectra; matching the LSF of templates to the target reduces dispersion bias below 1%.
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Gravitational emissions and light curves of quasi-periodic orbits in Schwarzschild spacetime embedded in a Dehnen-type dark matter halo
Dehnen-halo parameters amplify closed-orbit scale and induce GW phase lag; for the (z,1,z-1) family, light-curve peaks equal 3z-1 at high inclination.
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It's Not Just Star Formation: A trend of low dark matter densities in the Andromeda dwarf galaxy system
Five of seven modeled M31 dwarf spheroidals show anomalously low central DM densities at 150 pc, with star formation heating disfavored as the sole cause.
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No evidence for Keplerian taper of far-out galactic rotation
Derivative test on SPARC galaxies shows outer rotation curves are consistent with flat profiles rather than Keplerian taper.
- Tidal origin of dark-matter free dwarf galaxies in the NGC 1052 group