248 citations · 3.8k across the 89 of their papers we have counts for
Showing 2015 · astro-ph.HEShow all
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astro-ph.HE2015★ 149 cited
Gamma-ray spectroscopy of Positron Annihilation in the Milky Way
Thomas Siegert, Roland Diehl, Gerasim Khachatryan +5
The annihilation of positrons in the Galaxy's interstellar medium produces characteristic gamma-rays with a line at 511 keV. This emission has been observed with the spectrometer S…
astro-ph.HE2015★ 60 cited
Revisiting INTEGRAL/SPI observations of 44Ti from Cassiopeia A
Thomas Siegert, Roland Diehl, Martin G. H. Krause +1
The 340-year old supernova remnant Cassiopeia A at 3.4 kpc distance is the best-studied young core-collapse supernova remnant. Nucleosynthesis yields in radioactive isotopes have b…