175 citations · 2.7k across the 72 of their papers we have counts for
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Diverse reddening distributions in sight lines to type Ia supernovae
Lucas Hallgren, Radoslaw Wojtak, Jens Hjorth +1
Precise cosmological constraints from type Ia supernovae require adequately accurate corrections for host-galaxy extinction. Modelling these corrections is challenged by the proble…
The Distance to NGC 4993: The Host Galaxy of the Gravitational-wave Event GW170817
Jens Hjorth, Andrew J. Levan, Nial R. Tanvir +6
The historic detection of gravitational waves from a binary neutron star merger (GW170817) and its electromagnetic counterpart led to the first accurate (sub-arcsecond) localizatio…
Dark matter inner slope and concentration in galaxies: from the Fornax dwarf to M87
G. A. Mamon, J. Chevalier, A. J. Romanowsky +1
We apply two new state-of-the-art methods that model the distribution of observed tracers in projected phase space to lift the mass / velocity anisotropy (VA) degeneracy and deduce…
Radial orbit instability in dwarf dark matter haloes
Grzegorz Gajda, Ewa L. Lokas, Radoslaw Wojtak
Using N-body simulations we study the phenomenon of radial orbit instability occurring in dark matter haloes of the size of a dwarf galaxy. We carried out simulations of seven sphe…
Ursa Major II - Reproducing the observed properties through tidal disruption
R. Smith, M. Fellhauer, G. N. Candlish +3
Recent deep photometry of the dwarf spheroidal Ursa Major II's morphology, and spectroscopy of individual stars, have provided a number of new constraints on its properties. With a…