Spectral modeling of type II supernovae. I. Dilution factors (A&A paper)
We have completed an important step towards our long-term goal of performing cosmological distance measurements with type IIP supernovae (SNe IIP). This work is lead by Christian Vogl who has significantly extended the capabilities of our Monte Carlo-based radiative transfer code TARDIS 1. It is now capable of accurately performing spectral synthesis for hydrogen-dominated supernovae. As a first demonstration, we have calculated a new set of dilution factors, which can be used in the expanding photosphere method (EPM) to determine distances to SNe IIP. We compare our results with the two previously published sets of dilution factors, discuss possible origins for their discrepancies and, for the first time, investigate the influence of metallicity. Our findings are summarized in a paper, which has been accepted for publication in Astronomy & Astrophysics. A preprint version can be found on the arxiv.
These extensions will eventually be merged into the main TARDIS branch ↩︎