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Polarimetry and astrometry of NIR flares as event horizon scale, dynamical probes for the mass of Sgr A*

Abuter, R.; Aimar, N.; Amaro-Seoane, Pau; Amorim, A.; Bauböck, M.; Berger, J.P.; Bonnet, H.; Bourdarot, G.; Brandner, W.; Cardoso, V.; Clenet, Y.; Davies, R.; de Zeeuw, P.T.; Dexter, J.; Drescher, A (EDP Sciences, 2023-09-06)

[EN] We present new astrometric and polarimetric observations of flares from Sgr A* obtained with GRAVITY, the near-infrared interferometer at ESO's Very Large Telescope Interferometer (VLTI), bringing the total sample of ...
Where intermediate-mass black holes could hide in the Galactic Centre. A full parameter study with the S2 orbit

Straub, O.; Bauböck, M.; Abuter, R.; Aimar, N.; Amaro-Seoane, Pau; Amorim, A.; Berger, J.P.; Bonnet, H.; Bourdarot, G.; Brandner, W.; Cardoso, V.; Clenet, Y.; Dallilar, Y.; Davies, R.; de Zeeuw, P.T. (EDP Sciences, 2023-03-31)

[EN] Context. In the Milky Way the central massive black hole, Sgr A*, coexists with a compact nuclear star cluster that contains a sub-parsec concentration of fast-moving young stars called S-stars. Their location and age ...

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