Observing nuclear gamma-ray lines from the Galaxy with SPI/INTEGRAL

Details Observing nuclear gamma-ray lines from the Galaxy with SPI/INTEGRAL Observing nuclear gamma-ray lines from the Galaxy with SPI/INTEGRAL

Nov 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006aipc..870..174k&link_type=abstract

INTERSECTIONS OF PARTICLE AND NUCLEAR PHYSICS: 9th Conference CIPAN2006. AIP Conference Proceedings, Volume 870, pp. 174-177 (2

Physics

Nuclear Physics

X- And Gamma-Ray Telescopes And Instrumentation, Gamma-Ray Sources, Gamma-Ray Bursts, Gamma-Ray

Scientific paper

Gamma rays in the MeV energy range offer a unique opportunity to study the hot interstellar medium and its dynamics by way of measuring gamma-ray lines emitted during the decay of radioactive isotopes. Current instrumentation like the spectrometer SPI on board of the INTEGRAL satellite observatory is able to measure the width and position of MeV lines like the 1 808.63 keV line from the decay of 26Al spatially resolved to a precision corresponding to several tens of km s-1 This accuracy allows to deduce the location of the emitting radioactive material within the Galaxy and thereby to determine the total amount of 26Al present and from that the Galactic star formation rate.

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