66 citations · 200 across the 19 of their papers we have counts for
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On the origin of the strong internal magnetic fields of central compact objects
Kazım Yavuz Ekşi, İrem Bakır
Central compact objects are radio-quite young neutron stars associated with supernova remnants. They have relatively small dipole fields, as infer…
The period clustering of magnetars and X-ray dim isolated neutron stars
Kazım Yavuz Ekşi
The spin periods of magnetars and X-ray dim isolated neutron stars (XDINS) cluster within a remarkably narrow range. Using the current sample of 30 magnetars with measured periods…
Evolution of fallback discs around millisecond magnetars: effect of supercritical accretion on GRB afterglows
Sercan Çıkıntoğlu, Sinem Şaşmaz, M. Hakan Erkut +1
Some models of gamma-ray bursts (GRBs) invoke nascent millisecond magnetars as the central engine and address the X-ray afterglows with the interaction of magnetar magnetospheres w…
On the minimum spin period of accreting pulsars
Sercan Çıkıntoğlu, K. Yavuz Ekşi
The distribution of the spin frequencies of neutron stars in low-mass X-ray binaries exhibits a cut-off at 730 Hz, below the break-up frequency (mass-shedding limit) of neutron sta…
On the hysteresis effect in transitions between accretion and propeller regimes
Sercan Çıkıntoğlu, K. Yavuz Ekşi
Some observations and numerical simulations of disc-magnetosphere interaction show that accretion can proceed in the propeller regime. When the Alfvén radius is beyond the corotati…
GRMHD simulations of accreting neutron stars I: nonrotating dipoles
Sercan Çıkıntoğlu, K. Yavuz Ekşi, Luciano Rezzolla
We study the general-relativistic dynamics of matter being accreted onto and ejected by a magnetised and nonrotating neutron star. The dynamics is followed in the framework of full…