Astronomers Observe Unprecedented X-ray Pulses and Plasma Jets from Nearby Supermassive Black Hole
- Astronomers have observed unprecedented X-ray pulses from the supermassive black hole 1ES 1927+654, located 100 million light-years away, which has shown a dramatic increase in X-ray flashes from every 18 minutes to every seven minutes.
- The black hole's corona disappeared in 2018 and reassembled months later, marking a first in black hole astronomy, according to astronomers at MIT and elsewhere.
- The team plans to use future telescopes, including the space-based gravitational-wave detector LISA, to study the black hole's extreme physics, particularly the potential orbiting of a white dwarf.
- The recent observations suggest a tidal disruption event may have occurred, causing a significant increase in radio wave emissions and the launching of a jet from the active galactic nucleus.
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The space probe Gaia has surveyed the Milky Way. Now its tank is empty.
It found the brightest spots in the night sky, discovered black holes and drew a precise map of the Milky Way. One of ESA's most valuable space probes for science is being decommissioned. An obituary.
·Zürich, Switzerland
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