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Articles tagged: Galactic centre

  • ESO’s Very Large Telescope (VLT), S2, Sagittarius A*, supermassive black hole, Theory of general relativity 09 August 2017 Stars orbiting Sgr A* hint at relativistic effects

    ..., these are the first measurements of this type to be made for stars orbiting a supermassive black hole. "The Galactic Centre really is the best laboratory to study the motion of stars in a relativistic environment. I was amazed how well we could...

    • ESO’s Very Large Telescope (VLT)
    • S2
    • Sagittarius A*
    • supermassive black hole
    • Theory of general relativity
  • black hole-low mass binaries, Chandra X-ray Observatory, Sagittarius A*, supermassive black hole, X-rays 05 April 2018 Newly discovered black holes suggests thousands more in our galaxy

    ...up to 10,000 more within just three light years of the Galactic Centre. The discovery, made by a team from Columbia University, helps...want to look for black holes," Hailey said, "but the Galactic Center is so far away from Earth that those bursts are ...

    • black hole-low mass binaries
    • Chandra X-ray Observatory
    • Sagittarius A*
    • supermassive black hole
    • X-rays
  • binary stars, Gaia mission, Gaia16aya, red dwarf 03 February 2020 Researchers discover "invisible" stars too dim to be seen

    ... alerted by ESA’s Gaia space telescope that a particular star far from the galactic centre was behaving unusually, astronomers have discovered a stellar binary system that is so ...objects lurking unnoticed in directions away from the galactic centre.

    • binary stars
    • Gaia mission
    • Gaia16aya
    • red dwarf
  • Sagittarius A*, Sgr A* 17 December 2021 New study shows that 99.9% of the mass at the centre of our galaxy is due to black hole

    ...stars around Sagittarius A*, the supermassive black hole at the centre of the Milky Way, astronomers have calculated that a ...; “The mass distribution in the Galactic Centre from interferometric astrometry of multiple stellar orbits” will be ...

    • Sagittarius A*
    • Sgr A*
  • MeerKAT, radio telescope, South African Radio Astronomy Observatory (SARAO), Square Kilometre Array 16 July 2018 Science begins with South Africa's super radio telescope

    With a stunning image of the galactic centre to mark its inauguration, South Africa’s Deputy... this new instrument”, says Fernando Camilo, chief scientist of SARAO. “The centre of the galaxy was an obvious target: unique, visually striking and full of...

    • MeerKAT
    • radio telescope
    • South African Radio Astronomy Observatory (SARAO)
    • Square Kilometre Array
  • black hole merger, galaxy 3C186, gravitational waves, Hubble Space Telescope, supermassive black hole 24 March 2017 Gravitational waves expel black hole from galaxy centre

    ...supermassive black hole, is approximately 35, 000 light-years from the centre of its host galaxy known as 3C186; this is more than ... the newly-formed single black hole out of the galactic centre. “If our theory is correct, the observations provide ...

    • black hole merger
    • galaxy 3C186
    • gravitational waves
    • Hubble Space Telescope
    • supermassive black hole
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