Abstract Details
| Name: Aruna Affiliation: Indian Institute of Astrophysics Conference ID: ASI2016_550 Title : Carbon-Enhanced Metal-Poor stars: evolution, nucleosynthesis, observations and the impact on cosmochemistry Authors and Co-Authors : Aruna Goswami IIA Bangalore Abstract Type : Oral Abstract Category : Stars, The Milky Way Galaxy and its neighbours Abstract : Carbon-enhancement phenomena appear in stars that exhibit four different heavy-element abundance patterns. The most numerous class is characterised by enrichments of neutron-capture elements with an abundance pattern compatible with the operation of the s-process in asymptotic giant branch (AGB) stars. Another class exhibits large overabundances of elements produced by s-process and also overabundances of elements whose origins are traditionally related to r-process. The Carbon-enhanced metal-poor stars (CEMP) that do not show enhancement of heavy elements form another class, and, there is yet another class of CEMP stars that are characterized by r-process enhancement, although this later class has only one confirmed example till now. I will discuss how the chemical abundances observed in these stars are employed to unravel a variety of details and their implications for cosmochemistry. |