Now, napping quietly as it waits for its next celestial snack, the supermassive black hole is dormant.
(2016, February 11). When it was active, NGC 4889’s supermassive black hole was fuelled by the process of hot accretion. © 1996-2015 National Geographic Society, © 2015- The other, named NGC 4889, the brightest galaxy in the Coma cluster more than 335 million light years away, has a black hole of comparable or larger mass.
At its heart lurks one of the most massive black holes ever discovered.Located about 300 million light-years away in the Coma Cluster, the giant elliptical galaxy NGC 4889, the brightest and largest galaxy in this image, is home to a record-breaking supermassive black hole. NGC 4889. This is about 15 times the diameter of Neptune's orbit from the Sun. It is not intended to provide medical or other professional advice.Views expressed here do not necessarily reflect those of ScienceDaily, its staff, its contributors, or its partners.Financial support for ScienceDaily comes from advertisements and referral programs, where indicated. The black hole at the center of NGC 4889 is among the largest ever discovered, but it is currently slumbering. Stunning Photo Reveals Galaxy With Supermassive Black Hole ESA/Hubble Information Centre. Orbiting the black hole, this spinning disc of material was accelerated by the black hole's immense gravitational pull and heated to millions of degrees. But the elliptical galaxy, pictured in this new image from the NASA/ESA Hubble Space Telescope, harbours a dark secret. "The sleeping giant NGC 4889 harbors a dark secret." A near-record 17-billion-solar-mass black hole discovered in a sparse area of the local universe indicates that these monster objects may be more common than once thought. ScienceDaily shares links with scholarly publications in the Content on this website is for information only. The newly discovered supermassive black hole is in NGC 1600, an elliptical galaxy in the constellation Eridanus some 149 … NGC 4845 (also known as NGC 4910) is a spiral galaxy located in the constellation Virgo around 47 million light years away. At the center of that galaxy lies a sleeping giant: a supermassive black hole that is 21 billion times the mass of our sun.The size of a black hole can be estimated by its event horizon, or the distance from the center of the black hole at which nothing can escape its gravitational grasp. Stars are forming around its margins and appear to remain stable, says NASA.
By studying such images, scientists hope to unravel the deep secrets of the universe. The galaxy was originally discovered by William Herschel in 1786.. By comparison, the supermassive black hole at the centre of our galaxy, the Milky Way, is believed to have a mass about four million times that of the Sun and an event horizon just one fifth the orbit of Mercury.But the time when NGC 4889's black hole was swallowing stars and devouring dust is past. ScienceDaily, 11 February 2016. "The sleeping giant NGC 4889 harbors a dark secret." This heated material also expelled gigantic and very energetic jets. The placid appearance of NGC 4889 can fool the unsuspecting observer. Or view hourly updated newsfeeds in your RSS reader:Keep up to date with the latest news from ScienceDaily via social networks:Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Using instruments on the Keck II Observatory and Gemini North Telescope, astronomers measured the velocity of the stars moving around NGC 4889's centre. It was discovered in 1785 by the British astronomer Frederick William Herschel I, who catalogued it as a bright, nebulous patch. NGC 4889 (also known as Coma B) is an E4 supergiant elliptical galaxy. That process has now paused, but it could restart at a later date.We can't see black holes directly because light can't escape their tremendous gravitational pull.
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