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arXiv · 2608.17599

SST-1M: Recent results and prospects for observation of the Galactic Center region

Jakub Juryšek·for the SST-1M Collaboration
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Abstract

The Galactic Center is a crowded region containing powerful particle accelerators and objects producing non-thermal radiation, including the diffuse very-high-energy (VHE) gamma-ray component known as the `Ridge', whose hard spectrum suggests particle acceleration up to PeV energies. The relevant processes can be tested, and the source parameters can be constrained via Cherenkov telescope observations. Two Single-Mirror Small-Size Cherenkov Telescopes (SST-1M) are currently operated in stereoscopic mode at the Ond\v{r}ejov Observatory. Their future relocation is being considered, including a site with excellent visibility of the Galactic Center. We present recent observations demonstrating SST-1M capabilities for detecting extended emission and discuss prospects for probing the Galactic Center region, including searches for a spectral cut-off above 10 TeV. We show that the large field-of-view and good VHE sensitivity make SST-1M an ideal instrument for the search for PeVatrons.

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Jakub Juryšek, for the SST-1M Collaboration. 2026-08-18. SST-1M: Recent results and prospects for observation of the Galactic Center region. https://arxiv.org/abs/2608.17599

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