Esaenwi Sudum

Suzaku Spectral Observation of Fe K Alpha Lines in mCVs Ex Hydrae

• Broschiertes Buch

Produktbeschreibung

We report on the pointed X-ray analysis of Magnetic Cataclysmic Variable (mCV) Ex Hya data from the High Energy and Astrophysical Science Archive Research Centre (HEASARC). The observation was made by the Suzaku team using the Suzaku satellite. Ex Hya was observed with Suzaku satellite on 18-07-2007 for 91 kiloseconds (ks). We modeled the spectrum of the system with a Thermal bremsstrahlung model plus three Gaussian lines for the iron lines. We resolved the neutral or low-ionized (6.41 keV), He-like (6.70 keV), and H-like (7.00 keV) lines. The absorbing hydrogen column density in both the full and partial covering is not seen in our source. The Fe Ka fluorescence line in Ex Hya is created due to irradiation of the accretion disk by hard X-ray from the shock region, while the 6.70 and 7.00 are as a result of collisional ionization of the k-shell followed by florescence of atoms in ionized state due to reflection on the hot white dwarf surface.

Produktdetails

• Verlag: LAP Lambert Academic Publishing
• Seitenzahl: 52
• Erscheinungstermin: 13. November 2015
• Englisch
• Abmessung: 220mm x 150mm x 4mm
• Gewicht: 96g
• ISBN-13: 9783659802263
• ISBN-10: 3659802263
• Artikelnr.: 44244981

Autorenporträt

Esaenwi Sudum is an X-ray Astrophysicist. He studied Applied Physics with an option in Electronics in RSUST Port Harcourt, Nigeria where he graduated at a SECOND CLASS UPPER division. He holds an M.Sc. in Astrophysics from the department of Physics and Astronomy, University of Nigeria, Nsukka. He is currently pursuing a PhD in Variable Stars.