381 citations · 1.5k across the 23 of their papers we have counts for
5 papers · 1 filter
Investigating ULX accretion flows and cyclotron resonance in NGC 300 ULX1
Filippos Koliopanos, Georgios Vasilopoulos, Johannes Buchner +2
Methods. We analyzed broadband XMM-Newton and NuSTAR observations of NGC 300 ULX1, performing phase-averaged and phase-resolved spectroscopy. We compared two physically motivated m…
Titans of the Early Universe: The Prato Statement on the Origin of the First Supermassive Black Holes
Tyrone E. Woods, Bhaskar Agarwal, Volker Bromm +30
In recent years, the discovery of massive quasars at z~7 has provided a striking challenge to our understanding of the origin and growth of supermassive black holes in the early Un…
The XMM-Newton serendipitous survey. VIII: The first XMM-Newton serendipitous source catalogue from overlapping observations
I. Traulsen, A. D. Schwope, G. Lamer +13
XMM-Newton has observed the X-ray sky since early 2000. The XMM-Newton Survey Science Centre Consortium has published catalogues of X-ray and ultraviolet sources found serendipitou…
Accreting, highly magnetized neutron stars at the Eddington limit: A study of the 2016 outburst of SMC X-3
Filippos Koliopanos, Georgios Vasilopoulos
We study the temporal and spectral characteristics of SMC X-3 during its 2016 outburst. To probe accretion onto highly magnetized neutron stars (NSs), at the Eddington limit. We ob…
Intermediate Mass Black Holes: A brief review
Filippos Koliopanos
Intermediate mass black holes (IMBHs) are an (as yet) elusive class of black holes that are expected to lie in the range, between the firmly established stel…