Chemical Elements as Tracers of the Evolution of the Cosmos

Past events

Chemical Elements as Tracers of the Evolution of the Cosmos
  • 2018-03-14T09:30:00+01:00
  • 2018-03-16T17:00:00+01:00
March 14 Wednesday

14 Mar, 2018 09:30 AM to 16 Mar, 2018 05:00 PM
Vilnius, Lithuania

The aim of the meeting is to tackle the following questions: (a) the preparation of the observing proposal to investigate evolution of Eu and Ba in the EMP stars; (b) discuss and take the necessary actions for the preparation of the Nuclear Astrophysics Database (NAD); and (c) discuss and launch several science projects presented at the Keele meeting in October 2017. It is foreseen that the meeting will be heavily based on discussions and interactions. Several talks will set up the stage for an in-depth discussions, with at least 10-15 min foreseen for questions and discussion after each talk. Separate slots will be reserved for longer discussions to address various important issues in detail and, ultimately, to plan further steps and actions. The meeting program is available here:

  • 2017-09-13T00:00:00+02:00
  • 2017-09-15T23:59:59+02:00
September 13 Wednesday

13 Sep, 2017 to 15 Sep, 2017
IPN, Orsay, France

The main goal of the R-matrix method, which was developed by Lane and Thomas in the fifties, is to parametrize known experimental observables such as cross-sections of nuclear reactions of astrophysical interest or phase shifts with a small number of parameters, and then use these parameters to extrapolate data measured at higher energies down to stellar energies. R-matrix codes, easy to use, were developed these last 20 years such as DREAM of P. Descouvemont et al. and AZURE of Azuma et al.. These codes allow to analyze complex cases including multiple resonances which can interfere and non-resonant contributions. In this training school, the lecturers Pierre Descouvemont (Universiy ULB of Brussels) and Edward Simpson (University of Canberra) will show the participants how to use the two R-matrix codes after giving an introduction on the R-matrix formalism.