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Identifier 000451834
Title Spectral and timing analysis of transient X-ray pulsars
Alternative Title Φασματική και χρονική ανάλυση παροδικών πάλσαρ ακτίνων-Χ
Author Δρουδάκης, Κωνσταντίνος Ο.
Thesis advisor Ζέζας, Ανδρέας
Reviewer Κυλάφης, Νικόλαος
Reig, Pablo
Abstract We present the pulse profiles and the spectral and timing analysis of the Be/X-ray binary pulsar SXP 4.78 using data obtained from the combined observations of NuSTAR and Swift during its outburst in mid-November 2018. With the application of appropriate theoretical models, we extract information regarding the physical and geometrical parameters of the accretion column, as well as the accretion disk. In addition, we calculate an upper boundary for the magnetic field strength of the neutron star, B ≦ 22.7 * 1012 G. We also find evidence of an evolved accretion disk, reaching close to the surface of the pulsar. Finally, we study the changes of the accretion column parameters in respect to time. The results are discussed and compared with previous studies.
Language English
Subject HMXBs
Ακτίνες-Χ
ΔΣΕΑΧΜΜ
Issue date 2022-11-25
Collection   School/Department--School of Sciences and Engineering--Department of Physics--Post-graduate theses
  Type of Work--Post-graduate theses
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