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Articles tagged: active galaxy

  • active galaxy, Fast Radio Burst, FRB 121102, Karl Jansky Very Large Array, magnetar 05 January 2017 Astronomers pinpoint location of mysterious fast radio bursts

    ... VLA observations also revealed an ongoing, persistent source of weaker radio emission in the same region which is typical of a galaxy with an active nucleus. "We do have to keep in mind that this FRB is the only one known to repeat, so it may...

    • active galaxy
    • Fast Radio Burst
    • FRB 121102
    • Karl Jansky Very Large Array
    • magnetar
  • active galaxy, Keck Telescope, Sagittarius A*, Sgr A*, Very Large Telescope 09 August 2019 Is the Milky Way's black hole waking up?

    ... at the centre of our galaxy, our resident black hole known as Sagittarius A* (Sgr A* for short) is usually a quiet inhabitant. But recent observations with the Keck telescope have showed a big increase in activity suggesting that it could be waking...

    • active galaxy
    • Keck Telescope
    • Sagittarius A*
    • Sgr A*
    • Very Large Telescope
  • HAWC+, magnetic field, Magnetic Universe, NASA, SOFIA January 2022 Revealing the magnetic universe

    ... burst of star formation and reshaped the original spiral galaxy, they combined with gravitational forces to distort, twist and...gas motions arising from galactic outflows, mergers and active galaxies have evolved over cosmic time, especially during ...

    • HAWC+
    • magnetic field
    • Magnetic Universe
    • NASA
    • SOFIA
    Authors: James Green     Joan Schmelz     Naseem Rangwala    
  • black holes, Hubble Space Telescope, Hubble Space Telescope Imaging Spectrograph (STIS) instrument, NGC 3147, Quasar 12 July 2019 Hubble uncovers black hole that shouldn't exist

    ... there is a thin disc encircling a starving black hole that mimics the much larger discs found in extremely active galaxies. Of particular interest, this disc of material circling the black hole offers a unique opportunity to test Albert Einstein...

    • black holes
    • Hubble Space Telescope
    • Hubble Space Telescope Imaging Spectrograph (STIS) instrument
    • NGC 3147
    • Quasar
  • 01 February 2016 Enormous gas cloud on a collision course with the Milky Way

    ... time the amount of heavier elements relative to hydrogen in the Smith Cloud, by measuring the dip in brightness of three active galaxies that reside billions of light-years beyond the cloud. The Smith Cloud absorbs some of its light...

  • High-resolution Airborne Wideband Camera-Plus (HAWC+), Hubble, Messier 82, SOFIA, Spitzer, starburst galaxy, Stratospheric Observatory for Infrared Astronomy (SOFIA) March 2021 Messier 82’s starburst magnetic highway

    ...supermassive black hole accretion in the hearts of other active galaxies. These results allowed researchers to determine that the ...study the magnetic field strength and structure in galaxies. Ongoing efforts like the SOFIA Extragalactic Magnetic ...

    • High-resolution Airborne Wideband Camera-Plus (HAWC+)
    • Hubble
    • Messier 82
    • SOFIA
    • Spitzer
    • starburst galaxy
    • Stratospheric Observatory for Infrared Astronomy (SOFIA)
    Authors: Joan Schmelz    
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