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r-Process Elements as Tracers of Enrichment Processes in the Early Halo
Published online by Cambridge University Press: 09 May 2016
Abstract
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Significant minorities of extremely metal-poor (EMP) halo stars exhibit dramatic excesses of neutron capture elements. The standard scenario for their origin is mass transfer and dilution in binary systems, but requires them to be binaries. If not, these excesses must have been implanted in them from birth by processes that are not included in current models of SN II chemical enrichment. The binary population of such EMP subgroups is a test of this scenario.
- Type
- Contributed Papers
- Information
- Proceedings of the International Astronomical Union , Volume 11 , Issue S317: The General Assembly of Galaxy Halos: Structure, Origin and Evolution , August 2015 , pp. 272 - 273
- Copyright
- Copyright © International Astronomical Union 2016
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