152 citations · 199 across the 4 of their papers we have counts for
4 papers
From diffuse extragalactic and galactic gamma rays to limits on extra dimensions
Michel Cassé, Bruno Mansoulié, Joseph Silk
We derive the maximum fraction of energy emitted in the form of massive (Kaluza- Klein) gravitons by core collapse supernovae, and the corresponding minimal extra-dimensional Planc…
GRBs and the 511 keV emission of the Galactic bulge
E. Parizot, M. Cassé, R. Lehoucq +1
We consider the phenomenology of the 511 keV emission in the Galactic bulge, as recently observed by INTEGRAL, and propose a model is which the positrons are produced by gamma-ray…
SPI/INTEGRAL in-flight performance
J. -P. Roques, S. Schanne, A. von Kienlin +23
The SPI instrument has been launched on-board the INTEGRAL observatory on October 17, 2002. SPI is a spectrometer devoted to the sky observation in the 20 keV-8 MeV energy range us…
Testing the Primary Origin of Be and B in the Early Galaxy
Elisabeth Vangioni-Flam, Reuven Ramaty, Keith A. Olive +1
Two types of models have been proposed to explain the linear rise of the Be and B abundances as a function of iron observed in metal poor halo stars. In both cases, this linearity…