Going out with a bang: compact object collisions resulting from supernovae in binary systems (2009)
Troja, Eleonora, Wynn, Graham A., O'Brien, Paul T., Rosswog, Stephan
Binary star systems containing a neutron star or a black hole with an evolved, massive star are dynamically perturbed when the latter undergoes a supernova explosion. It is possible that the natal...
Are all short-hard gamma-ray bursts produced from mergers of compact stellar objects? (2009)
Virgili, Francisco J., Zhang, Bing, O'Brien, Paul, Troja, Eleonora
Abridged: The origin and progenitors of short-hard gamma-ray bursts remain a puzzle and a highly debated topic. The most popular model to interpret short-hard bursts is the merger of two compact...
Troja, Eleonora, Bocchino, Fabrizio, Miceli, Marco, Reale, Fabio
We investigate the spatial distribution of the physical and chemical properties of the hot X-ray emitting plasma of the supernova remnant IC 443, in order to get important constraints on its...
Different progenitors of short hard gamma-ray bursts (2007)
Troja, Eleonora, King, Andrew R., O'Brien, Paul T., Lyons, Nicola, Cusumano, Giancarlo
We consider the spatial offsets of short hard gamma-ray bursts (SHBs) from their host galaxies. We show that all SHBs with extended duration soft emission components lie very close to their hosts. We...