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Opening a new window in Galactic science: results highlights from the NuSTAR observatory

by Dott. Lorenzo Natalucci (INAF/IAPS Roma)

Nov 12, 2014 from 03:00 PM to 04:30 PM

Where Sala riunioni IASF-Bo (II piano), via Gobetti 101

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I will review the major discoveries of the NASA NuSTAR observatory in the field of Galactic Science, obtained during its prime mission time (first two years). NuSTAR was launched on June 13, 2012 into a nearly equatorial Low Earth Orbit and is sensitive in the 3-79 keV energy range. It has an unprecedented sensitivity in the hard X-ray band (~10 to 100 compared to present orbiting missions) thanks to its combination of multilayer optics and high performance semiconductor (CZT) detector, with a minimum detectable flux of 10-14 erg cm-2 s-1 in the 10-30 keV band (for 106s exposure). The exceptional dynamic range of NuSTAR (>104) allows to study both faint and very bright sources in contrast to the flying X-ray missions carrying CCD detectors. Results on Galactic compact objects will be reviewed including detection of cyclotron lines, reflection and spin measurements, and study of populations of compact sources in the Galaxy; plus studies of regions of diffuse emission, like e.g. the hard X-ray morphology of the Galactic Centre and the mapping of SNR emission.

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