Journal article

The rates and host galaxies of pair-instability superno v ae through cosmic time: predictions from BPASS and IllustrisTNG

MM Briel, B Metha, JJ Eldridge, TJ Moriya, M Trenti

Monthly Notices of the Royal Astronomical Society | OXFORD UNIV PRESS | Published : 2024

Abstract

Pair-instability superno vae (PISNe) hav e long been predicted to be the final fates of near-zero-metallicity v ery massiv e stars ( Z < Z ⊙/ 3, M ZAMS ≳ 140 M ⊙). Ho we ver, no definite PISN has been observed to date, leaving theoretical modelling validation open. To investigate the observability of these e xplosiv e transients, we combine detailed stellar evolution models for PISNe formation, computed from the binary population and spectral synthesis code suite, BPASS , with the star formation history of all individual computational elements in the Illustris-TNG simulation. This allows us to compute comic PISN rates and predict their host galaxy properties. Of particular importance is that..

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University of Melbourne Researchers

Grants

Awarded by University of Auckland


Funding Acknowledgements

MMB is supported by the Boninchi Foundation and the Swiss National Science Foundation (project number CRSII5_213497). MMB and JE acknowledge support from the University of Auckland and funding from the Royal Society Te Apar & amacr;ngi of New Zealand Marsden Grant Scheme. BM acknowledges support from an Australian Government Research Training Program (RTP) Scholarship. This research is supported in part by the Australian Research Council Centre of Excellence for All Sky Astrophysics in 3 Dimensions (ASTRO 3D), through project number CE170100013. TJM is supported by the Grants-in-Aid for Scientific Research of the Japan Society for the Promotion of Science (JP24K00682, JP24H01824, JP21H04997, JP24H00002, JP24H00027, JP24K00668). TJM was supported by the Australian Research Council (ARC) through the ARC's Discovery Projects funding scheme (project DP240101786). TJM was supported by JSPS Core-to-Core Program (grant number: JPJSCCA20210003).