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    NGC 3201 tagged posts

    Hubble’s Standout Stars Bound Together by Gravity

    January 30, 2018, Categories  Astronomy/Space

    Image: Hubble's standout stars bound together by gravity

    This image from the NASA/ESA Hubble Space Telescope reveals a glistening and ancient globular cluster named NGC 3201—a gathering of hundreds of thousands of stars bound together by gravity Credit: ESA/Hubble & NASA, Acknowledgement: Sarajedini et al

    This image from the NASA/ESA Hubble Space Telescope reveals a glistening and ancient globular cluster named NGC 3201—a gathering of hundreds of thousands of stars bound together by gravity. NGC 3201 was discovered in 1826 by the Scottish astronomer James Dunlop, who described it as a “pretty large, pretty bright” object that becomes “rather irregular” towards its center.

    Globular clusters are found around all large galaxies, but their origin and role in galaxy formation remain tantalizingly unclear...

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    Odd Behavior of Star reveals Lonely Black Hole hiding in giant Star Cluster

    January 17, 2018, Categories  Astronomy/Space

    Astronomers using ESO's MUSE instrument on the Very Large Telescope in Chile have discovered a star in the cluster NGC 3201 that is behaving very strangely. It appears to be orbiting an invisible black hole with about four times the mass of the sun -- the first such inactive stellar-mass black hole found in a globular cluster. This important discovery impacts on our understanding of the formation of these star clusters, black holes, and the origins of gravitational wave events.This artist's impression shows how the star and its massive but invisible black hole companion may look, in the rich heart of the globular star cluster. Credit: ESO/L. Calçada

    Astronomers using ESO’s MUSE instrument on the Very Large Telescope in Chile have discovered a star in the cluster NGC 3201 that is behaving very strangely. It appears to be orbiting an invisible black hole with about four times the mass of the sun — the first such inactive stellar-mass black hole found in a globular cluster. This important discovery impacts on our understanding of the formation of these star clusters, black holes, and the origins of gravitational wave events.This artist’s impression shows how the star and its massive but invisible black hole companion may look, in the rich heart of the globular star cluster. Credit: ESO/L. Calçada

    Astronomers using ESO’s MUSE instrument on the Very Large Telescope in Chile have discovered a star in the cluster NGC 3201 that is behaving v...

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