381 citations · 1.5k across the 23 of their papers we have counts for
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astro-ph.HE2019★ 56 cited
M51 ULX-7: super-orbital periodicity and constraints on the neutron star magnetic field
G. Vasilopoulos, S. K. Lander, F. Koliopanos +1
In the current work we explore the applicability of standard theoretical models of accretion to the observed properties of M51 ULX-7. The spin-up rate and observed X-ray luminosity…
astro-ph.HE2019★ 56 cited
NGC 300 ULX1: spin evolution, super-Eddington accretion and outflows
G. Vasilopoulos, M. Petropoulou, F. Koliopanos +4
NGC300 ULX1 is an ultra-luminous X-ray pulsar, showing an unprecedented spin evolution, from about 126 s to less than 20 s in only 4 years, consistent with steady mass accretion ra…