Development of a pulsed fiber laser for ladar system

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2012

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Serim, Muhammed Miraç

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IIn this thesis, the recently discovered Soft Gamma Ray Repeaters SGR J1833-0832, SWIFT J1822.3-1606 and SWIFT J1834.9-0846 are analysed using the archival Swift, RXTE, Chandra and XMM-Newton observations. The period fluctuations and timing noise properties of these sources are investigated. Spectral characteristics and long term frequency evolution of these sources are presented. Investigation for timing noise structure of these magnetars has shown a correlation between first frequency derivative of the spin frequency and torque noise strength.

Subject Keywords

Gamma rays., Gamma ray spectrometry., Pulsars.

URI

http://etd.lib.metu.edu.tr/upload/12614803/index.pdf
https://hdl.handle.net/11511/21928

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Graduate School of Natural and Applied Sciences, Thesis

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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 the outburst. We suggest that either an orbital model (with P-orb similar or equal to 14.7(4) d) or a noise process due to random torque fluctuations (with S-r approximate to 1.3 x 10(-18) Hz(2) S-2 Hz(-1)) is plausible to describe the residuals of the timing solution. The frequency derivat...

Citation Formats

M. M. Serim, “Development of a pulsed fiber laser for ladar system,” M.S. - Master of Science, Middle East Technical University, 2012.