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Full spatial extent of the ESO 508-059 stream

Determine the full spatial extent of the stellar stream associated with ESO 508-059 beyond the brightest detected segment.

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Background

ESO 508-059 is presented as the most confident stream detection in the paper, yet only the brightest portion of the feature is visible at the current surface-brightness limit. Establishing the complete morphology and extent is important for robust classification and for any subsequent modeling of the host’s dark matter halo using stream tracers.

The authors explicitly state that without deeper imaging, they do not know the full extent of the tidal feature in ESO 508-059.

References

Without deeper imaging we do not know the full extent of the tidal feature- our most confident stream detection, ESO 508-059, only shows the brightest piece of its stream.

— Stellar streams around dwarf galaxies in the Local Universe (2511.23314 - Sakowska et al., 28 Nov 2025) in Appendix A: Challenges in identifying stellar streams around dwarf galaxies