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Nucleosynthesis in type Ia supernovae

Keegans, James Douglas


James Douglas Keegans


Marco Pignatari


This thesis presents the post-processed isotopic yields from 39 SNIa models with masses of 1.4, 1.0 and 0.8 M⊙ and metallicities ranging from a 22Ne mass fraction of 0 to 0.1. In chapter 3 the full yields are presented, along with a description of the major production sites of relevent isotopes and a discussion of the metallicity dependency of the yields. We discuss, in detail, the production site of each isotope and its significance in relation to GCE.

In chapter 4 we compare our post processed reults with source models and with the literature to varify our yields.

In chapter 5, potential isotopic diagnostics of progenitor WD masses are identified from the post-processed results. We find that there are isotopic
tracerswhich distinguish the Chandresakar and sub-Chandresakarmassmodels, and that if these ratios are able to be investigated, either in the bulk solar material or through isotopic grain data, then the progenitors of SNIa, or the relative ratios of sub- to Chandresakar mass WD progenitors, may be determined through this method with further galactic chemical evolution modeling.


Keegans, J. D. (2022). Nucleosynthesis in type Ia supernovae. (Thesis). University of Hull. Retrieved from

Thesis Type Thesis
Publication Date Apr 1, 2022
Deposit Date May 24, 2022
Publicly Available Date Feb 24, 2023
Keywords Physics
Public URL
Additional Information Department of Physics, The University of Hull


Thesis (4.6 Mb)

Copyright Statement
© 2022 Keegans, James Douglas. All rights reserved. No part of this publication may be reproduced without the written permission of the copyright holder.

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