Vol. 3 (11) pp. 951-961

Determination of the metallicity in Elliptical Galaxy NGC 720 using Suzaku Observations

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  • Astronomy department-National Research Institutes Of Astronomy and Geophysics (NRIAG), Egypt.
  • Department of Astronomy and Meteorology, Faculty of Science, Al-Azhar University, Nasr City, Cairo 11884, Egypt.
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Abstract

We have analyzed the X-ray data of NGC 720 using Suzak/XISs in band 0.3-5. Kev. The extended emission in this galaxy is well described by thin thermal emission from hot gas. The detailed analysis has allowed the determination of the abundance of oxygen, silicon, sulfur and iron. In this work, the versions of APEC model 1.3.1 and 3.0.2 are applied for comparison with previous work. The APEC with atomic database (ATOMDB) provides the best fitting spectral modeling through additional emission lines. The metal abundance of O, Mg, Si, and Fe are measured within radius 3?.

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How to Cite This Article

Nasser M. A., Ahmed M. Abdelbar, M. M. Beheary, M. Hamday and Abdelrazek M. K. Shaltout (2015); Determination of the metallicity in Elliptical Galaxy NGC 720 using Suzaku Observations, Int. J. of Adv. Res., 3 (11), 951-961, ISSN 2320-5407.

Corresponding Author

Ahmed M. Abdelbar

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