Homepage of Konstantinos Karpouzas

About me and my work:

I am a PhD candidate at the Kapteyn Institute of the University of Groningen. I am currently working on neutron star (NS) low mass X-ray binaries (LMXBs). A LMXB is a system of two stellar objects orbiting around each other. One of them is a compact object, usually a NS or a black hole (BH), while the other is a star that has become so big that the gravity of the compact object can suck matter from the surface of the big star, a process that we call accretion. As the compact object accretes matter from the surface of the evolved star, it forms a disc around itself that we call accretion disk. My team and I are trying to understand the physical properties of neutron stars and their surrounding environment by modeling their extremely fast (~milli second) variability which is observed in the X-rays. In particular we study the quasi-periodic oscillations (QPOs) in NS and BH LMXBs. These QPOs are nothing more but variability in the X-ray luminosity of the source at ms timescales.

A QPO in a NS LMXB (Credit: NASA's Goddard Space Flight Center)

You can find out more about me and my academic achievements by downloading my CV: Download my CV

Here is a list of my most recent publications:

"A Population Study of Gaseous Exoplanets" link to paper
" Wayne a Simulator for HST WFC3 IR Grism Spectroscopy" link to paper
"Probing the nature of the accretion flow in low mass X-ray binaries using the spectral-timing properties of the kiloHertz Quasi-Periodic Oscillations " link to paper