ixpeobssim: a Simulation and Analysis Framework for the Imaging X-ray Polarimetry Explorer

12 Mar 2022  ·  L. Baldini, N. Bucciantini, N. Di Lalla, S. R. Ehlert, A. Manfreda, M. Negro, N. Omodei, M. Pesce-Rollins, C. Sgrò, S. Silvestri ·

ixpeobssim is a simulation and analysis framework, based on the Python programming language and the associated scientific ecosystem, specifically developed for the Imaging X-ray Polarimetry Explorer (IXPE). Given a source model and the response functions of the telescopes, it is designed to produce realistic simulated observations, in the form of event lists in FITS format, containing a strict super-set of the information provided by standard IXPE level-2 files. The core ixpeobssim simulation capabilities are complemented by a full suite of post-processing applications, allowing for the implementation of complex, polarization-aware analysis pipelines, and facilitating the inter-operation with the standard visualization and analysis tools traditionally in use by the X-ray community. We emphasize that, although a significant part of the framework is specific to IXPE, the modular nature of the underlying implementation makes it potentially straightforward to adapt it to different missions with polarization capabilities.

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Instrumentation and Methods for Astrophysics High Energy Astrophysical Phenomena