SPI/INTEGRAL measurement of the Central radian soft gamma-ray continuum emission

Details SPI/INTEGRAL measurement of the Central radian soft gamma-ray continuum emission SPI/INTEGRAL measurement of the Central radian soft gamma-ray continuum emission

Apr 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005aps..apr.h9001l&link_type=abstract

American Physical Society, APS April Meeting, April 16-19, 2005, abstract #H9.001

Physics

Scientific paper

It is clear now that unresolved sources contribute for the greatest part to the soft gamma-ray ``diffuse emission'' estimated by past instruments, and that always better sensitivity of the instruments leads to continuous reduction of this ``diffuse emission.'' The last stage is brought now by the INTEGRAL observatory. INTEGRAL is performing a deep survey of the central radian of the galaxy. First, we have built a catalogue of the hard sources of X-ray (> 20 keV) detected by SPI/INTEGRAL, extracted their spectra and light curves simultaneously as the ``diffuse emission'' flux whose morphology has been represented with a simple analytical model. Finally we compared the total sources and the ``diffuse emission'' contributions.

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