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About 900 million years
There is a black hole probably engulfed a dead star. Last week, ripples in space and time were finally detected
on earth.
If these scientists
the observations are confirmed, the cosmic collision would be the first example of
a black hole colliding with a neutron star, possibly offering new perspectives
the expansion of
l & # 39; universe.
In April, attractive
observatories of the waves in the United States and Europe have relaunched the search for a cosmic extreme
events. Astronomers have since detected 23 potential events, but the last
would be the first of its kind.
The event, called
S190814bv, was detected Wednesday by two LIGO
detectors in the United States (gravitational wave interferometer observatory)
and the detector of the Virgin in Italy. Scientists have observed ripples in the space-time,
suggesting that they could have occurred due to a black hole swallowing a neutron
star.
Astronomers are working now
to confirm the size of the two objects that crashed together to form the cosmic
ripples. They also scan the area with telescopes where they believe that the
the event occurred, in search of the light likely to be emitted by the merger.
LIGO has detected gravitational waves for the first time in 2015, a century after Albert
Einstein first predicted their existence with his general theory of relativity.
LIGO and Virgo have since detected the fusion of black holes and neutron stars, but never a
interaction between the two. Confirmation of the collision would complete a
trifecta of cosmic detections.
"We'll see either a neutron star be
torn by a black hole, or swallowed whole like Pac-Man
swallow a ghost, "said Simon Stevenson, an astronomer with University of Swinburne
of technology in Australia. "In both cases, we will make a show!"
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