Galactic hard x-ray background: Inner galaxy



: Krivonos R., Tsygankov S., Revnivtsev M., Sazonov S., Churazov E., Sunyaev R.

: N/A

: INTEGRAL

: 2011

: POS Proceedings of Science

: INTEGRAL - A Science Workshop in Sardinia: The Extreme and Variable High Energy Sky, Extremesky 2011; Cagliari; Italy; 19 September 2011 through 23 September 2011

: Proceedings of Science

: 1824-8039

: https://pos.sissa.it/147/028/pdf


In this report we presentmeasurements of Galactic Ridge X-ray Emission (GRXE) in the Galactic Center region using INTEGRAL scanning observations. The 25-60 keV band GRXE fluxes at l = 0°, l = -22.5°, and l = +22.5° are 154±15, 72±15, and 62±12 mCrab, respectively. The derived longitude profile of the GRXE is in good agreement with the Galactic distribution of stars obtained from infrared observations, which strongly indicates its stellar origin.



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