Out-of-fold LightGBM recovers up to R²=0.982 of bias-corrected Hubble residual variance in LSST SN Ia mocks and R²=0.725 on DES 5YR, with consistent SHAP rankings, while redshift bins explain <1%.
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3D simulations show the convective Urca process substantially reduces the convection zone size in a simmering white dwarf, though convection extends past the Urca shell.
The local Hubble constant is measured as 73.04 ± 1.04 km/s/Mpc from Cepheid-calibrated Type Ia supernovae, showing a 5-sigma discrepancy with the Planck+LCDM prediction.
citing papers explorer
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Machine Learning Closure Audits for LSST Photometric Supernova Cosmology
Out-of-fold LightGBM recovers up to R²=0.982 of bias-corrected Hubble residual variance in LSST SN Ia mocks and R²=0.725 on DES 5YR, with consistent SHAP rankings, while redshift bins explain <1%.
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On the Importance of the Convective Urca Process in 3D Simulations of a Simmering White Dwarf
3D simulations show the convective Urca process substantially reduces the convection zone size in a simmering white dwarf, though convection extends past the Urca shell.
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A Comprehensive Measurement of the Local Value of the Hubble Constant with 1 km/s/Mpc Uncertainty from the Hubble Space Telescope and the SH0ES Team
The local Hubble constant is measured as 73.04 ± 1.04 km/s/Mpc from Cepheid-calibrated Type Ia supernovae, showing a 5-sigma discrepancy with the Planck+LCDM prediction.