Overview of non-transient gamma-ray binaries and prospects for the Cherenkov Telescope Array

Abstract

We simulate the spectral behaviour of the non-transient gamma-ray binaries using archival observations as a reference. With this we test the CTA capability to measure the sources' spectral parameters and detect variability on various time scales. We review the known properties of gamma-ray binaries and the theoretical models that have been used to describe their spectral and timing characteristics. We show that CTA is capable of studying these sources on time scales comparable to their characteristic variability time scales. For most of the binaries, the unprecedented sensitivity of CTA will allow the spectral evolution to be studied on a time scale as short as 30 min. This will enable a direct comparison of the TeV and lower energy (radio to GeV) properties of these sources from simultaneous observations. We also review the source-specific questions that can be addressed with such high-accuracy CTA measurements.

arXiv commentAccepted to A&A

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Cited by in corpus (13)

• Advances in Understanding High-Mass X-ray Binaries with INTEGRAL and Future Directions
• ASTRI Mini-Array Core Science at the Observatorio del Teide
• New insight into the origin of the GeV flare in the binary system PSR B1259-63 from the 2017 periastron passage
• Overview of non-transient gamma-ray binaries and prospects for the Cherenkov Telescope Array
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• Colliding-wind binary systems: Diffusive shock acceleration and non-thermal emission
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• NuSTAR and XMM-Newton observations of the binary 4FGL J1405.1-6119. A $\gamma$-ray emitting microquasar?
• Improved binary solution for the gamma-ray binary 1FGL J1018.6-5856
• Galactic transient sources with the Cherenkov Telescope Array Observatory
• Radio counterparts of gamma-ray sources in the Cygnus region
• Colliding-Wind Binaries as a Source of TeV Cosmic Rays