Andromeda central supermassive black hole
E479290
The Andromeda central supermassive black hole is the enormous black hole residing at the core of the Andromeda Galaxy (M31), exerting a dominant gravitational influence on the surrounding stars and gas in its galactic nucleus.
Statements (50)
| Predicate | Object |
|---|---|
| instanceOf |
astrophysical object
ⓘ
supermassive black hole ⓘ |
| activityClassification | low-luminosity active galactic nucleus ⓘ |
| activityLevel | currently quiescent ⓘ |
| alternativeName |
Andromeda nuclear black hole
NERFINISHED
ⓘ
M31 central black hole NERFINISHED ⓘ M31* NERFINISHED ⓘ |
| centralObjectOf |
Andromeda Galaxy
NERFINISHED
ⓘ
Andromeda galactic nucleus NERFINISHED ⓘ |
| distanceFromEarth |
about 2.5 million light-years
ⓘ
about 780 kiloparsecs ⓘ |
| electromagneticEmission |
radio emission
ⓘ
weak X-ray emission ⓘ |
| eventHorizonType | Schwarzschild or slowly spinning Kerr black hole (uncertain spin) ⓘ |
| evidenceType |
X-ray observations
ⓘ
gas kinematics ⓘ radio observations ⓘ stellar kinematics ⓘ |
| formationScenario |
growth by accretion of gas
ⓘ
growth by mergers with smaller black holes ⓘ growth by tidal disruption of stars ⓘ |
| futureEvent | expected to form a binary with Sagittarius A* in several billion years ⓘ |
| futureInteraction | may interact with Milky Way central black hole after Milky Way–Andromeda merger ⓘ |
| gravitationalInfluence |
nuclear star cluster of Andromeda Galaxy
NERFINISHED
ⓘ
surrounding gas in galactic nucleus ⓘ surrounding stars in galactic bulge ⓘ |
| hasAccretion | low-luminosity accretion flow ⓘ |
| hostGalaxy | Andromeda Galaxy NERFINISHED ⓘ |
| locatedIn |
Andromeda Galaxy
NERFINISHED
ⓘ
Local Group NERFINISHED ⓘ Virgo Supercluster NERFINISHED ⓘ constellation Andromeda NERFINISHED ⓘ galactic nucleus of Andromeda Galaxy ⓘ observable universe ⓘ |
| mass |
about 1.4e8 solar masses
ⓘ
of order 10^8 solar masses ⓘ |
| massEstimateMethod |
gas dynamical modeling
ⓘ
stellar dynamical modeling ⓘ |
| massRatioToSagittariusA* | roughly 30 ⓘ |
| moreMassiveThan | Sagittarius A* NERFINISHED ⓘ |
| observedBy |
Chandra X-ray Observatory
NERFINISHED
ⓘ
Hubble Space Telescope NERFINISHED ⓘ Keck Observatory NERFINISHED ⓘ Very Large Telescope NERFINISHED ⓘ |
| redshift | approximately -0.001 (blueshift of host galaxy) ⓘ |
| roleInGalaxy |
dominant gravitational source in central parsec
ⓘ
influences dynamics of nuclear star cluster ⓘ |
| similarTo | Milky Way central supermassive black hole Sagittarius A* NERFINISHED ⓘ |
| surroundedBy |
double-peaked nuclear star cluster
ⓘ
eccentric nuclear stellar disk ⓘ |
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.