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BAT X-ray Survey - III: X-ray Spectra and Statistical Properties
M. Ajello, A. Rau, J. Greiner +7
In this concluding part of the series of three papers dedicated to the Swift/BAT hard X-ray survey (BXS), we focus on the X-ray spectral analysis and statistical properties of the…
SPI observations of the diffuse 60Fe emission in the Galaxy
W. Wang, M. J. Harris, R. Diehl +12
Gamma-ray line emission from radioactive decay of 60Fe provides constraints on nucleosynthesis in massive stars and supernovae. The spectrometer SPI on board INTEGRAL has accumulat…
26Al in the inner Galaxy
R. Diehl, H. Halloin, K. Kretschmer +12
We performed a spectroscopic study of the 1809 keV gamma-ray line from 26Al decay in the Galaxy using the SPI imaging spectrometer with its high-resolution Ge detector camera on th…
SPI/INTEGRAL observation of the Galactic central radian: contribution of discrete sources and implication for the diffuse emission
L. Bouchet, J. P. Roques, P. Mandrou +4
The INTEGRAL observatory has been performing a deep survey of the Galactic central radian since 2003, with the goal of both extracting a catalog of sources and gaining insight into…
Propagation of cosmic rays: nuclear physics in cosmic-ray studies
I. V. Moskalenko, A. W. Strong, S. G. Mashnik
The nuclei fraction in cosmic rays (CR) far exceeds the fraction of other CR species, such as antiprotons, electrons, and positrons. Thus the majority of information obtained from…
SPI Measurements of Galactic 26Al
R. Diehl, J. Knödlseder, G. Lichti +7
The precision measurement of the 1809 keV gamma-ray line from Galactic Al is one of the goals of the SPI spectrometer on INTEGRAL with its Ge detector camera. We aim for det…