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2018A&A...619A..46L - Astronomy and Astrophysics, volume 619A, 46-46 (2018/11-1)
Dynamical constraints on a dark matter spike at the Galactic centre from stellar orbits.
LACROIX T.
Abstract (from CDS):
In this work I use astrometric and spectroscopic data on the S2 star at the Galactic centre (GC) up to 2016 to derive specific constraints on the size of a dark matter (DM) spike around the central supermassive black hole Sgr A*. These limits are the best direct constraints on a DM spike at the GC for non-annihilating dark matter and exclude a spike with radius greater than a few tens of parsecs for cuspy outer halos and a few hundred parsecs for cored outer halos.
Abstract Copyright: © ESO 2018
Journal keyword(s): dark matter - Galaxy: center - celestial mechanics - black hole physics
Simbad objects: 3
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