Abstract
The initial data from the Event Horizon Telescope (EHT) on , the supermassive black hole at the center of the M87 Galaxy, provide direct observational information on its mass, spin, and accretion disk properties. A combination of the EHT data and other constraints provides evidence that has a mass . EHT also inferred the dimensionless spin parameter from jet properties; a separate recent analysis using only the light from near as measured by the EHT Collaboration found . These determinations disfavor ultralight bosons of mass for spin-one bosons and for spin-zero bosons, within the range considered for fuzzy dark matter, invoked to explain dark matter distribution on approximately kiloparsec scales. Future observations of could be expected to strengthen our conclusions.
- Received 25 April 2019
DOI:https://doi.org/10.1103/PhysRevLett.123.021102
© 2019 American Physical Society
Physics Subject Headings (PhySH)
Viewpoint
Supermassive Black Hole May Constrain Superlight Dark Matter
Published 10 July 2019
An interpretation of the black hole image taken by the Event Horizon Telescope hints of new constraints on the mass of dark matter.
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