742 citations · 2.6k across the 34 of their papers we have counts for
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Universal Relations for rapidly rotating neutron stars using supervised machine-learning techniques
Grigorios Papigkiotis, George Pappas
As some of the most compact stellar objects in the universe, neutron stars are unique cosmic laboratories. The study of neutron stars provides an ideal theoretical testbed for inve…
The surface of rapidly-rotating neutron stars: implications to neutron star parameter estimation
Hector O. Silva, George Pappas, Nicolás Yunes +1
The Neutron star Interior Composition Explorer (NICER) is currently observing the x-ray pulse profiles emitted by hot spots on the surface of rotating neutron stars allowing for an…
Finite size effects on the light curves of slowly-rotating neutron stars
Hajime Sotani, Hector O. Silva, George Pappas
An important question when studying the light curves produced by hot spots on the surface of rotating neutron stars is, how might the shape of the light curve be affected by relaxi…
A new method to constrain neutron star structure from quasi-periodic oscillations
Andrea Maselli, George Pappas, Paolo Pani +4
We develop a new method to measure neutron star parameters and derive constraints on the equation of state of dense matter by fitting the frequencies of simultaneous Quasi Periodic…
Unified description of astrophysical properties of neutron stars independent of the equation of state
George Pappas
In recent years, a lot of work was done that has revealed some very interesting properties of neutron stars. One can relate the first few multipole moments of a neutron star, or qu…
What can quasi-periodic oscillations tell us about the structure of the corresponding compact objects?
George Pappas
We show how one can estimate the multipole moments of the space-time, assuming that the quasi-periodic modulations of the X-ray flux (quasi-periodic oscillations), observed from ac…