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Galactic Phylogenetics

Published online by Cambridge University Press:  02 August 2018

Paula Jofré
Affiliation:
Institute of Astronomy, University of Cambridge, Madingley Road, Cambridge CB3 0HA, UK email: [email protected] Núcleo de Astronomía, Universidad Diego Portales, Santiago, Chile
Payel Das
Affiliation:
Rudolf Peierls Centre for Theoretical Physics, University of Oxford, OX1 3NP, UK email: [email protected]
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Abstract

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Phylogenetics is a widely used concept in evolutionary biology. It is the reconstruction of evolutionary history by building trees that represent branching patterns and sequences. These trees represent shared history, and it is our contention that this approach can be employed in the analysis of Galactic history. In Galactic archaeology the shared environment is the interstellar medium in which stars form and provides the basis for tree-building as a methodological tool. Using elemental abundances of solar-type stars as a proxy for DNA, we built such an evolutionary tree to study the chemical evolution of the solar neighbourhood and published in Jofré15 et al. (2017). In this proceeding we summarise these results and discuss future prospects.

Type
Contributed Papers
Copyright
Copyright © International Astronomical Union 2018 

References

Jofré, P., Das, P., Bertranpetit, J., & Foley, R. 2017, MNRAS, volGoogle Scholar
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Nissen, 2016, A&A, volGoogle Scholar