REVIEW 4 cited by
Axion core - halo mass and the black hole - halo mass relation: constraints on a few parsec scales
Not yet reviewed by Pith; the record is open.
This paper has not been read by Pith yet. Machine review is queued; the pith claim, tier, and objections will appear here once it completes.
SPECIMEN: schema-true, not a live event
T0 review · schema-true
One-sentence machine reading of the paper's core claim.
pith:XXXXXXXX · record.json · timestamp
Signed reviews
abstract
If the dark matter is made of ultra-light axions, stable solitonic cores form at the centers of virialized halos. In some range for the mass $m$ of the axion particle, these cores are sufficiently compact and can mimic supermassive black holes (SMBH) residing at galactic nuclei. We use the solitonic core--halo mass relation, validated in numerical simulations, to constrain a new range of allowed axion mass from measurements of the SMBH mass in (pseudo)bulge and bulgeless galaxies. These limits are based on observations of galactic nuclei on scales smaller than 10 pc. Our analysis suggests that $m < 10^{-18}$ eV is ruled out by the data. We briefly discuss whether an attractive self-interaction among axions could alleviate this constraint.
Forward citations
Cited by 4 Pith papers
-
Soliton self-gravity and core-halo relation in fuzzy dark matter halos
A two-parameter model including soliton self-gravity shows that simulated fuzzy dark matter cores sit between the self-gravity and host-halo regimes, and that core-halo scatter depends on both halo concentration and c...
-
Fate of scalar dark matter solitons around supermassive galactic black holes
A self-interacting scalar dark matter soliton around a supermassive black hole settles into a unique critical accretion flow with flux ~ r_s^2 m^4 / λ4 and survives for many Hubble times.
-
The effect of fluctuating fuzzy axion haloes on stellar dynamics: a stochastic model
A stochastic model of density fluctuations in fuzzy axion haloes predicts disk heating that constrains the axion mass to be above about 2 x 10^-22 eV, with stronger but caveat-limited constraints from Eridanus II.
-
Fuzzy Dark Matter Soliton Cores around Supermassive Black Holes
A supermassive black hole perturber squeezes fuzzy dark matter soliton cores toward hydrogen-atom-like profiles, and M87 observations forbid FDM particle masses near 10^-22 eV.
Discussion (0). Continue with ORCID to comment.