3 papers
astro-ph.HE2025
An Agnostic Approach to Building Empirical Type Ia Supernova Light Curves: Evidence for Intrinsic Chromatic Flux Variation Using Nearby Supernova Factory Data
Jared Hand, A. G. Kim, G. Aldering +35
We present a new empirical Type Ia supernova (SN Ia) model with three chromatic flux variation templates: one phase dependent and two phase independent. No underlying dust extincti…
astro-ph.SR2024
Non-LTE radiative transfer simulations: Improved agreement of the double detonation with normal Type Ia supernovae
Christine E. Collins, Luke J. Shingles, Stuart A. Sim +6
The double detonation is a widely discussed explosion mechanism for Type Ia supernovae, whereby a helium shell detonation ignites a secondary detonation in the carbon/oxygen core o…
astro-ph.CO2024
No rungs attached: A distance-ladder free determination of the Hubble constant through type II supernova spectral modelling
Christian Vogl, Stefan Taubenberger, Géza Csörnyei +10
The ongoing discrepancy in the Hubble constant () estimates obtained through local distance ladder methods and early universe observations poses a significant challenge to the…