3 papers
astro-ph.HE2017
Episodic Torque-Luminosity Correlations and Anticorrelations of GX 1+4
M. M. Serim, S. Sahiner, D. Cerri-Serim +2
We analyse archival CGRO-BATSE X-ray flux and spin frequency measurements of GX 1+4 over a time span of 3000 days. We systematically search for time dependent variations of torque…
astro-ph.HE2017
The Timing Noise of Magnetars
D. Cerri-Serim, M. M. Serim, D. Yucalan +3
We represent noise strength analysis of Anomalous X-Ray Pulsars (AXPs) 4U 0142+61, 1RXS J170849.9-400910, 1E 1841-045, 1E 2259+586 and Soft Gamma Repeaters (SGRs) SGR J1833-0832, S…
astro-ph.HE2014
Timing Studies on X-Per and Discovery of its Transient QPO Feature
Z. Acuner, S. C. Inam, S. Sahiner +3
We present timing analysis of {\emph{RXTE}}-PCA and {\emph{INTEGRAL}}-ISGRI observations of X Per between 1998 and 2010. All pulse arrival times obtained from the {\emph{RXTE}}-PCA…