2 papers
astro-ph2008
How rapidly do neutron stars spin at birth?
Roberto Soria, Rosalba Perna, David Pooley +1
We have studied the X-ray properties of ageing historical core-collapse supernovae in nearby galaxies, using archival data from Chandra, XMM-Newton and Swift. We found possible evi…
astro-ph2004
Classifying the zoo of ultraluminous X-ray sources
Roberto Soria, Mark Cropper, Christian Motch
Ultraluminous X-ray sources (ULXs) are likely to include different physical types of objects. We discuss some possible subclasses, reviewing the properties of a sample of ULXs rece…