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| Query : 2018A&A...619A..46L |
2018A&A...619A..46L - Astronomy and Astrophysics, volume 619A46-46 (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
| Number of rows : 3 |
| N | Identifier | Otype |
ICRS (J2000) RA |
ICRS (J2000) DEC |
Mag U | Mag B | Mag V | Mag R | Mag I | Sp type |
#ref
1850 - 2026 |
#notes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | NAME Galactic Center | reg | 17 45 39.60213 | -29 00 22.0000 | ~ | 16269 | 0 | |||||
| 2 | NAME Sgr A* | X | 17 45 40.03599 | -29 00 28.1699 | ~ | 4970 | 3 | |||||
| 3 | NAME Galactic Bar | reg | ~ | ~ | ~ | 1458 | 0 |
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