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Hubble Catches Runaway Quasar
This image, taken by NASA's Hubble Space Telescope, reveals an unusual sight: a runaway quasar fleeing from its galaxy's central hub. A quasar is the visible, energetic signature of a black hole. Black holes cannot be observed directly, but they are the energy source at the heart of quasars — intense, compact gushers of radiation that can outshine an entire galaxy.
The green dotted line marks the visible periphery of the galaxy. The quasar, named 3C 186, appears as a bright star just off-center. The quasar and its host galaxy reside 8 billion light-years from Earth. Researchers estimate that it took the equivalent energy of 100 million supernovas exploding simultaneously to jettison the black hole. The most plausible explanation for this propulsive energy is that the monster object was given a kick by gravitational waves unleashed by the merger of two hefty black holes at the center of the host galaxy.
The Hubble image combines visible and near-infrared light taken by the Wide Field Camera 3.
About the Object
- DistanceDistanceThe physical distance from Earth to the astronomical object. Distances within our solar system are usually measured in Astronomical Units (AU). Distances between stars are usually measured in light-years. Interstellar distances can also be measured in parsecs.8 billion light-years away
About the Data
- Data DescriptionData DescriptionProposal: A description of the observations, their scientific justification, and the links to the data available in the science archive.
Science Team: The astronomers who planned the observations and analyzed the data. "PI" refers to the Principal Investigator.The Hubble image was created from HST data from proposal 13023, M. Chiaberge (STScI/ESA) - InstrumentInstrumentThe science instrument used to produce the data.HST>WFC3/UVIS and HST>WFC3/IR
- FiltersFiltersThe camera filters that were used in the science observations.WFC3/UVIS: F606W WFC3/IR: F140W
- Object NameObject NameA name or catalog number that astronomers use to identify an astronomical object.3C 186
- Object DescriptionObject DescriptionThe type of astronomical object.Quasar
- Release DateMarch 23, 2017
- Science ReleaseGravitational Wave Kicks Monster Black Hole Out Of Galactic Core
- Credits
Cyan: F606W Orange: F140W

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Gravitational Waves Eject a Black Hole from Its Central Home
This illustration shows how gravitational waves can propel a black hole from the center of a galaxy. The scenario begins in the first panel with the merger of two galaxies, each with a central black hole. In the second panel, the two black holes in the newly merged galaxy settle...
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Claire Andreoli
NASA’s Goddard Space Flight Center
Greenbelt, Maryland
claire.andreoli@nasa.gov