NuGrid: s process in massive stars (2009)
Presentation / Conference Contribution
Hirschi, R., Frischknecht, U., Pignatari, M., Thielemann, F.-K., Bennett, M., Diehl, S., Fryer, C., Herwig, F., Hungerford, A., Magkotsios, G., Rockefeller, G., Timmes, F., & Young, P. (2008, July). NuGrid: s process in massive stars. Poster presented at 10th Symposium on Nuclei in the Cosmos, Mackinac Island, Michigan, USA

The s-process production in massive stars at very low metallicities is expected to be negligible due to the low abundance of the neutron source 22Ne, to primary neutron poisons and decreasing iron seed abundances. However, recent models of massive st... Read More about NuGrid: s process in massive stars.

Exact and approximate relations for the spin-dependence of the exchange energy in high magnetic fields (2009)
Journal Article
(2009). Exact and approximate relations for the spin-dependence of the exchange energy in high magnetic fields. International Journal of Modern Physics B, 3004 - 3008. https://doi.org/10.1142/S0217979209062712

The exchange energy of an arbitrary collinear-spin many-body system in an external magnetic field is a functional of the spin-resolved charge and current densities. Within the framework of density-functional theory (DFT), we show that the dependence... Read More about Exact and approximate relations for the spin-dependence of the exchange energy in high magnetic fields.

The low-mass Initial Mass Function in the young cluster NGC 6611 (2009)
Journal Article
Jeffries, M. Oliveira, J., D. Jeffries, R., & Th. van Loon, J. (2009). The low-mass Initial Mass Function in the young cluster NGC 6611. Monthly Notices of the Royal Astronomical Society, 1034-1050. https://doi.org/10.1111/j.1365-2966.2008.14140.x

NGC 6611 is the massive young cluster (2-3 Myr) that ionises the Eagle Nebula. We present very deep photometric observations of the central region of NGC 6611 obtained with the Hubble Space Telescope and the following filters: ACS/WFC F775W and F850L... Read More about The low-mass Initial Mass Function in the young cluster NGC 6611.