Jacqueline Den Hartogh
Comparison between Core-collapse Supernova Nucleosynthesis and Meteoric Stardust Grains: Investigating Magnesium, Aluminium, and Chromium
Den Hartogh, Jacqueline; Petö, Maria K.; Lawson, Thomas; Sieverding, Andre; Brinkman, Hannah; Pignatari, Marco; Lugaro, Maria
Maria K. Petö
Dr Marco Pignatari M.Pignatari@hull.ac.uk
Isotope variations of nucleosynthetic origin among solar system solid samples are well documented, yet the origin of these variations is still uncertain. The observed variability of 54Cr among materials formed in different regions of the protoplanetary disk has been attributed to variable amounts of presolar, chromium-rich oxide (chromite) grains, which exist within the meteoritic stardust inventory and most likely originated from some type of supernova explosion. To investigate if core-collapse supernovae (CCSNe) could be the site of origin of these grains, we analyze yields of CCSN models of stars with initial masses 15, 20, and 25 M⊙, and solar metallicity. We present an extensive abundance data set of the Cr, Mg, and Al isotopes as a function of enclosed mass. We find cases in which the explosive C ashes produce a composition in good agreement with the observed 54Cr/52Cr and 53Cr/52Cr ratios as well as the 50Cr/52Cr ratios. Taking into account that the signal at atomic mass 50 could also originate from 50Ti, the ashes of explosive He burning also match the observed ratios. Addition of material from the He ashes (enriched in Al and Cr relative to Mg to simulate the make-up of chromite grains) to the solar system's composition may reproduce the observed correlation between Mg and Cr anomalies, while material from the C ashes does not present significant Mg anomalies together with Cr isotopic variations. In all cases, nonradiogenic, stable Mg isotope variations dominate over the variations expected from 26Al.
Den Hartogh, J., Petö, M. K., Lawson, T., Sieverding, A., Brinkman, H., Pignatari, M., & Lugaro, M. (2022). Comparison between Core-collapse Supernova Nucleosynthesis and Meteoric Stardust Grains: Investigating Magnesium, Aluminium, and Chromium. The Astrophysical journal, 927(2), Article 220. https://doi.org/10.3847/1538-4357/ac4965
|Journal Article Type||Article|
|Acceptance Date||Dec 21, 2021|
|Online Publication Date||Mar 17, 2022|
|Publication Date||Mar 10, 2022|
|Deposit Date||Jan 22, 2022|
|Publicly Available Date||Mar 22, 2022|
|Publisher||American Astronomical Society|
|Peer Reviewed||Peer Reviewed|
|Keywords||Core-collapse supernovae; Explosive nucleosynthesis; Nucleosynthesis; Stellar nucleosynthesis; Interstellar medium; Meteorites; Meteors; Stellar astronomy|
© 2022. The Author(s). Published by the American Astronomical Society.
Original content from this work may be used under the terms of the Creative Commons Attribution 4.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.
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