COMPTEL data analysis using GammaLib and ctools Article Swipe
J. Knödlseder
,
W. Collmar
,
Manon Jarry
,
M. McConnell
·
YOU?
·
· 2022
· Open Access
·
· DOI: https://doi.org/10.5281/zenodo.6462842
YOU?
·
· 2022
· Open Access
·
· DOI: https://doi.org/10.5281/zenodo.6462842
More than 20 years after the end of NASA's Compton Gamma-Ray Observatory mission, the data collected by its COMPTEL telescope provide still the most comprehensive and deepest view of our Universe in MeV gamma rays. While most of the COMPTEL data are archived at NASA's High Energy Astrophysics Science Archive Research Center (HEASARC), the absence of any publicly available software for their analysis prevents confronting them to the scientific advances made in the field of gamma-ray astronomy at higher energies. To make this unique treasure again accessible for science we developed an open source software that enables a comprehensive and modern analysis of the archived COMPTEL telescope data. Our software is based on a dedicated plugin to the GammaLib library, a community-developed toolbox for the analysis of astronomical gamma-ray data. We implemented high-level scripts for building of science analysis workflows in ctools, a community-developed gamma-ray astronomy science analysis software framework. We describe the implementation of our software and provide the underlying algorithms. Using data from the HEASARC archive, we demonstrate that our software reproduces derived data products that were obtained in the past using the proprietary COMPTEL software. We furthermore demonstrate that our software reproduces COMPTEL science results published in the literature. This brings back COMPTEL telescope data into life, allowing for their confrontation with recent advances in gamma-ray astronomy, and gives the community a handle to unveil its still hidden treasures.
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COMPTEL data analysis using GammaLib and ctoolsWork title
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articleOpenAlex work type
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2022Year of publication
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2022-04-15Full publication date if available
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J. Knödlseder, W. Collmar, Manon Jarry, M. McConnellList of authors in order
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