166 citations · 204 across the 2 of their papers we have counts for
4 papers
The Effect of Stellar Evolution on Migrating Warm Jupiters
Shane Frewen, Brad Hansen
Warm jupiters are an unexpected population of extrasolar planets that are too near to their host to have formed in situ, but distant enough to retain a significant eccentricity in…
Constraining Neutrino Cooling using the Hot White Dwarf Luminosity Function in the Globular Cluster 47 Tucanae
Bradley Hansen, Harvey Richer, Jason Kalirai +3
We present Hubble Space Telescope observations of the upper part (T_eff> 10 000 K) of the white dwarf cooling sequence in the globular cluster 47 Tucanae and measure a luminosity f…
Eccentric Planets and Stellar Evolution as a Cause of Polluted White Dwarfs
Shane F. N. Frewen, Brad M. S. Hansen
A significant fraction of white dwarfs (WDs) are observed to be polluted with metals despite high surface gravities and short settling times. The current theoretical model for this…
Coronal radiation belts
H. S. Hudson, A. L. MacKinnon, S. F. N. Frewen +1
The magnetic field of the solar corona has a large-scale dipole character, which maps into the bipolar field in the solar wind. Using standard representations of the coronal field,…