Altan Baykal

E-mail

altan@metu.edu.tr

Department

Department of Physics

ORCID

0000-0003-4747-5129

Scopus Author ID

57209723426

Web of Science Researcher ID

AAZ-9427-2020

Pulse frequency fluctuations of persistent accretion powered pulsars Serim, D.; Serim, Muhammed Miraç; Baykal, Altan (2022-11-01) In this study, we examine the long-term torque noise fluctuations of persistent X-ray binaries Her X-1, Vela X-1, GX 301-2, Cen X-3, 4U 1538-53, OAO 1657-415, and 4U 1626-67 using the historical pulse frequency measurement...
Timing and spectral analysis of 2S 1417-624 during its 2018 outburst Serim, Muhammed Miraç; Ozudogru, O. C.; Donmez, C. K.; Sahiner, S.; Serim, D.; Baykal, Altan; Inam, S. C. (2022-02-01) We investigate timing and spectral characteristics of the transient X-ray pulsar 2S 1417-624 during its 2018 outburst with NICER follow up observations. We describe the spectra with high-energy cut-off and partial covering...
Comprehensive analysis of the transient X-ray pulsar MAXI J1409 619 Donmez, C. K.; Serim, Muhammed Miraç; Inam, S. C.; Sahiner, S.; Serim, D.; Baykal, Altan (Oxford University Press (OUP), 2020-08-01) We probe the properties of the transient X-ray pulsar MAXI J1409-619 through RXTE and Swift follow-up observations of the outburst in 2010. We are able to phase-connect the pulse arrival times for the 25 d episode during t...
Pulse frequency fluctuations of magnetars Cerri-Serim, D.; Serim, Muhammed Miraç; Sahiner, S.; Inam, S. C.; Baykal, Altan (Oxford University Press (OUP), 2019-05-01) Using RXTE, Chandra, XMM-Newton and Swift observations, we construct the power spectra and torque noise strengths of magnetars for the first time. For some of the sources, on time-scales of months to years, we measure stro...
Observatory science with eXTP in't Zand, Jean J. M.; et. al. (2019-02-01) In this White Paper we present the potential of the enhanced X-ray Timing and Polarimetry (eXTP) mission for studies related to Observatory Science targets. These include flaring stars, supernova remnants, accreting white ...
Dense matter with eXTP Watts, Anna L.; et. al. (2019-02-01) In this White Paper we present the potential of the Enhanced X-ray Timing and Polarimetry (eXTP) mission for determining the nature of dense matter; neutron star cores host an extreme density regime which cannot be replica...
Accretion in strong field gravity with eXTP De Rosa, Alessandra; et. al. (Springer Science and Business Media LLC, 2019-02-01) In this paper we describe the potential of the enhanced X-ray Timing and Polarimetry (eXTP) mission for studies related to accretion flows in the strong field gravity regime around both stellar-mass and supermassive black-...
Discovery of a glitch in the accretion- powered pulsar SXP 1062 Serim, Muhammed Miraç; Sahiner, S.; Cerri-Serim, D.; İNAM, SITKI ÇAĞDAŞ; Baykal, Altan (2017-11-01) We present timing analysis of the accretion-powered pulsar SXP 1062, based on the observations of Swift, XMM-Newton and Chandra satellites covering a time span of about 2 yr. We obtain a phase coherent timing solution that...
X-Ray Timing Properties of GX 1+4 Serim, Muhammed Miraç; Sahiner, Seyda; Serim Cerri, Danjela; Inam, Sitki Cagdas; Baykal, Altan (2016-10-14) We present timing analysis of accreting X-ray pulsar GX 1+4 using the RXTE-PCA observations between 2001 and 2002. By constructing a phase connected timing solution for the source, we measured their ...
Timing Noise of Magnetars Serim Cerri, Danjela; Serim, Muhammed Miraç; Yuce, Doga; Sahiner, Seyda; Inam, Sitki Cagdas; Baykal, Altan (2016-10-14) 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, SWIFT J1822.3-1606 and SWIFT J1834.9-0846 t...

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