Conveners
Session M5
- Duncan Galloway (Monash Centre for Astrophysics, Monash University)
Mr
Arthur Choplin
(Geneva Observatory, Geneva University)
24/05/2018, 11:00
invited talk
Rotation largely affects the nucleosynthesis in massive stars, especially at low-metallicity. It triggers exchanges of material between different burning zones, leading to a strong overproduction of both light (e.g. C, N) and heavy (e.g. Sr, Ba) elements. After reviewing the interplay between rotational mixing and nucleosynthesis, I will discuss how surface chemical abundances of long-lived...
Dr
Yuri Cavecchi
(Princeton University - University of Southampton)
24/05/2018, 11:30
contributed talk
When a neutron star in a binary system is accreting from its
companion, the newly accumulated matter can undergo a thermonuclear
runaway which spreads over the whole surface of the star:
this results in extremely bright X-ray flashes called Type I Bursts.
Nuclear burning and its dependence on the mass accretion rate are
fundamental ingredients for describing the bursts...
Mr
Frank Chambers
(University of Amsterdam)
24/05/2018, 11:45
contributed talk
Accreting neutron stars (NS) can exhibit high frequency modulations in their lightcurves during thermonuclear X-ray bursts, known as burst oscillations. Their frequencies can be offset from the spin frequency of the NS by several Hz (known independently), and can drift by 1-3 Hz. While most burst oscillations have been observed during H/He triggered bursts, there has been one observation of...
Alicia Palmisano
(Michigan State University)
24/05/2018, 12:00
contributed talk
Understanding how the p-nuclei are created is an important step in learning more about the creation of the heavy isotopes; specifically, the isotopes on the proton-rich side of stability. Besides identifying the astrophysical sites for these events, nuclear data for all of the isotopes and their subsequent reaction rates are crucial information for simulation. Sensitivity studies have...
Dr
Adam Jacobs
(Michigan State University)
24/05/2018, 12:15
contributed talk
The powerful thermonuclear explosions driving X-ray bursts are powered largely by the rp-process. The large number of rare, short-lived isotopes involved in the process means reaction rates are often poorly constrained, while at the same time thousands of reactions can potentially participate in the process. In a world with finite beam time, we need a way to determine which rate measurements...