Swift Observations of Gaia BH3

Boris Sbarufatti; Renato Falomo; Aldo Treves

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arXiv · 2503.01679

Swift Observations of Gaia BH3

Boris Sbarufatti·Renato Falomo·Aldo Treves

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Abstract

We present UV and X-ray observations, obtained with the Swift Observatory, of Gaia BH3 a binary system containing a 33 solar masses black hole discovered through Gaia astrometry. The system is well detected in all UV and optical filters (1700-6500 {\AA}). We compare our results with the modeling of the non collapsed component using synthetic stellar libraries, a good agreement is found with our UV observations

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Boris Sbarufatti, Renato Falomo, Aldo Treves. 2025-03-03. Swift Observations of Gaia BH3. https://arxiv.org/abs/2503.01679

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