Initial 56Ni Masses in Type Ia Supernovae

Abstract

We infer initial masses of the synthesized radioactive nickel-56 in a sample of recent Type Ia supernovae applying a new formalism introduced recently by Khatami & Kasen (2019). It is shown that the nickel masses we derive do not differ significantly from previous estimates based on the traditional Arnett-model. We derive the $\beta$ parameter for our sample SNe and show that these are consistent with the fiducial value of $\sim 1.6$ given by Khatami & Kasen (2019) from SN Ia hydrodynamical simulations.

7 pages, 6 figures, published in PASP

References in corpus (7)

• Array Programming with NumPy
• The Broad-lined Type Ic SN 2003jd
• Consistent estimates of (56)Ni yields for type Ia supernovae
• The ejected mass distribution of type Ia supernovae: A significant rate of non-Chandrasekhar-mass progenitors
• Nebular spectra and abundance tomography of the type Ia supernova SN 2011fe: a normal SN Ia with a stable Fe core
• Evidence for Sub-Chandrasekhar Mass Type Ia Supernovae from an Extensive Survey of Radiative Transfer Models
• Can Helium-detonation Model Explain the Observed Diversity of Type Ia Supernovae?