Nuclear Physics & Astrophysics at CERN - NuPAC

Session

Nuclear Astrophysics

NuclAstr

10 Oct 2005, 14:00

503-1-001: SALLE DU CONSEIL (CERN)

5. Old metal-poor stars: observations and implications on the GCE

Prof. Timothy Beers (MSU)

10/10/2005, 14:00

Nuclear astrophysics

Invited oral contribution

I summarize recent observational progress on measurement of the elemental abundances of early generation stars, which have recorded (and preserved) the first episodes of nucleosynthesis in the Galaxy. I discuss two major recent surveys, one just completed, one just beginning. The first, the Hamburg/ESO R-process-Enhanced Star (HERES) survey has obtained ``snapshot'' high-resolution...

6. Stellar evolution and the need of nuclear physics

Prof. Friedrich-Karl Thielemann (University of Basel)

10/10/2005, 14:25

Nuclear astrophysics

Invited oral contribution

4. Nuclear physics for explosive nucleosynthesis

Prof. Karlheinz Langanke (GSI & TU Darmstadt)

10/10/2005, 14:50

Nuclear astrophysics

Invited oral contribution

7. ISOLDE experiments and astrophysics implications

Dr Ari Jokinen (University of Jyvaskyla)

10/10/2005, 15:15

Nuclear astrophysics

Invited oral contribution

A variety of astrophysical processes contribute to the synthesis of heavier elements in nature. The characteristics of the processes are governed by the astrophysical environment and details of the nuclear processes involved. Experiments performed at ISOLDE have played a central role in developing understanding of these processes. In this presentation, highlights to be discussed...

9. Branchings, neutron sources and poisons: evidence for stellar nucleosynthesis

Dr Maria Lugaro (University of Cambridge)

10/10/2005, 16:10

Nuclear astrophysics

Invited oral contribution

The first evidence of the occurrence of nucleosynthesis in stars was provided in the 1950s by the detection of the unstable heavy element technetium in the atmospheres of stars on the Asymptotic Giant Branch (AGB), a late evolutionary phase of stars of low mass. Technetium can be produced by slow neutron captures (the s process) and thus its detection requires that neutron source...

8. RIB physics in astrophysics worldwide

Prof. John D'Auria (Simon Fraser University)

10/10/2005, 16:35

Nuclear astrophysics

Invited oral contribution

As pointed out by Willie Fowler, the goals of nuclear astrophysics are to understand the mechanism of Nucleosynthesis and the process of energy generation in stellar environments. While a good deal is now known on what occurs in quiescent stellar burning, much less is known about pathways to heavy element production in explosive scenario. The former is largely dominated by nuclear...

10. Neutron cross sections for reading the abundance history

Dr Michael Heil (FZK Karlsruhe)

10/10/2005, 17:00

Nuclear astrophysics

Invited oral contribution

In the last decades considerable effort in experimental nuclear astrophysics, stellar modelling, and observations led to an improved understanding of various nucleosynthesis scenarios. This is particularly true for the main s process in low-mass AGB stars, which is largely responsible for the production of about half of the elemental abundances in the mass range 90 ≤ A ≤ 209. The weak s...

11. Nuclear theory for astrophysics applications

Dr Stéphane GORIELY

10/10/2005, 17:25

Nuclear astrophysics

Invited oral contribution

Important effort has been devoted in the last decades to measure reaction cross sections. These measurements are fundamental to put the nuclear astrophysics models on a sound basis. However, despite such effort, many nuclear applications, and most particularly nuclear astrophysics, still require the use of theoretical predictions to estimate experimentally unknown cross sections. Most...