The galactic evolution of neutron star mergers and their possible effect on the galactic chemical enrichment of r-process elements

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dc.creatorDe Donder, E.
dc.creatorVanbeveren, D.
dc.date2003-02-04
dc.date2003-05-08
dc.date.accessioned2026-07-07T02:07:28Z
dc.date.available2026-07-07T02:07:28Z
dc.descriptionA population number synthesis code follows in detail the evolution of a population of single stars and of close binaries. We use our code to simulate the population of neutron star - neutron star and black hole - neutron star binaries. We then combine our population number synthesis code with a galactic chemical evolutionary model in order to follow the time evolution of the formation and merger rate of these double compact star binaries and the resulting chemical enrichment of r-process elements, over the whole Galactic lifetime. It can be concluded that the neutron star/black hole merger process is able to reproduce the observed r-process enrichment of the Galaxy. However, we show that the latter conclusion depends critically on the physics of case BB Roche lobe overflow in binaries with a neutron star component and a hydrogen deficient core helium/helium shell burning star with a mass between 2.6 Mo and 6 Mo.
dc.descriptionAccepted by New Astronomy, 36 pages, 10 figures
dc.identifierhttps://arxiv.org/abs/astro-ph/0302048
dc.identifierhttp://arxiv.org/abs/astro-ph/0302048
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/5704
dc.subjectAstrophysics
dc.titleThe galactic evolution of neutron star mergers and their possible effect on the galactic chemical enrichment of r-process elements
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