Origin of the Dimmest X-Ray Sources on the Galactic Plane and Galactic Diffuse Emission

Details Origin of the Dimmest X-Ray Sources on the Galactic Plane and Galactic Diffuse Emission Origin of the Dimmest X-Ray Sources on the Galactic Plane and Galactic Diffuse Emission

Sep 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000cxo..prop..716e&link_type=abstract

Chandra Proposal ID #02910799

Physics

Chandra Proposal Id #02910799

Scientific paper

We have carried out AO1 Galactic plane deep survey (100 ksec), and discovered more than 50 unidentified sources in 3-8 keV down to the flux level 3e-15 erg/s/cm2. The log N-log S analysis suggests significant parts of these source are extragalactic, while some of the sources must be Galactic as they exhibit iron emission lines. We could not resolve the Galactic Ridge X-ray emission (GRXE) into point sources, which suggest the GRXEis truly diffuse, and there will not be significant number of dimmer point sources in our Galaxy. To further investigate origin of the dimmest X-ray sources on the Galactic plane, we will expand our deep survey toward adjacent fields for smaller and larger |b|, so that we can investigate |b| dependence of the source distribution. and energy spectra.

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