61 citations · 307 across the 11 of their papers we have counts for
8 papers · 1 filter
Gamma-ray spectroscopy of galactic nucleosynthesis
Roland Diehl, Jochen Greiner, Martin Krause +2
Diffuse gamma-ray emission from the decay of radioactive Al is a messenger from the nucleosynthesis activity in our current-day galaxy. Because this material is attributed t…
Al gamma rays from the Galaxy with INTEGRAL/SPI
Moritz M. M. Pleintinger, Roland Diehl, Thomas Siegert +2
The presence of radioactive Al at 1.8 MeV reflects ongoing nucleosynthesis in the Milky Way. Diffuse emission from its decay can be measured with gamma-ray telescopes in spa…
ejecta in young supernova remnants
Christoph Weinberger, Roland Diehl, Moritz M. M. Pleintinger +2
Context: Tracing unstable isotopes produced in supernova nucleosynthesis provides a direct diagnostic of supernova explosion physics. Theoretical models predict an extensive variet…
Gamma-ray Emission of 60Fe and 26Al Radioactivities in our Galaxy
W. Wang, T. Siegert, Z. G. Dai +7
The isotopes Fe and Al originate from massive stars and their supernovae, reflecting ongoing nucleosynthesis in the Galaxy. We studied the gamma-ray emission from the…
Comparing simulated Al maps to gamma-ray measurements
Moritz M. M. Pleintinger, Thomas Siegert, Roland Diehl +4
Context. The diffuse gamma-ray emission of at 1.8 MeV reflects ongoing nucleosynthesis in the Milky Way, and traces massive-star feedback in the interstellar medium…
Constraints on positron annihilation kinematics in the inner Galaxy
Thomas Siegert, Roland M. Crocker, Roland Diehl +4
The annihilation of cosmic positrons () with electrons in the interstellar medium (ISM) results in the strongest persistent gamma-ray line signal in the sky. For 50 years, thi…
Background modelling for -ray spectroscopy with INTEGRAL/SPI
Thomas Siegert, Roland Diehl, Christoph Weinberger +3
The coded-mask spectrometer-telescope SPI on board the INTEGRAL observatory records photons in the energy range between 20 and 8000 keV. A robust and versatile method to model the…
Gamma-Ray Observations of Nova Sgr 2015 No. 2 with INTEGRAL
Thomas Siegert, Alain Coc, Laura Delgado +11
INTEGRAL observed the nova V5668 Sgr around the time of its optical maximum on March 21, 2015. Studies at UV wavelengths showed spectral lines of freshly produced Be-7. This could…