Trump plans to hold a meeting with the President of Iraq at the economic forum in Davos
Jean Paul Gaultier announced the latest fashion show
Four people were killed in a shooting in the United States
US airports will check passengers from Wuhan
Britain's most expensive coin: gold sovereign sold for $ 1.3 million
Boeing reported the discovery of a new vulnerability in the software of 737 MAX liners
Trump's decision to suspend aid to Ukraine was recognized as a violation of the law
Bernie Sanders has overtaken Joe Biden in the ranking of democratic voters ' ...
The White House has asked the Pentagon to build another 435 km of the wall on the border ...
LIGO Gravity Detector Detects Second Case of Collision of Two Neutron Stars
BY John Kessler	 January 14, 2020 12:42 pm UTC 190 Views
Scientists working at the LIGO Gravity Observatory have announced yet another discovery of gravitational waves caused by the collision of a pair of neutron stars. This event is the second in a row when scientists were able to understand the distortion parameters of the space-time continuum and determine with sufficient probability the form of the cataclysm of the above type that caused them.
Note that starting in 2015, gravitational waves were recorded only a few dozen times. Their sources are crushing collisions of space objects that release such an amount of energy that is enough to deform the "fabric" of space-time. Since such deformations propagate in space like waves, they reach the Earth over time and sensors like LIGO and Virgo can register them, measure the parameters of gravitational vibrations and determine the location of their source.
Most of the recorded "packets" of gravitational waves were generated by collisions and black hole fusion. But scientists have already recorded waves from a collision of a neutron star and a black hole, and a collision of two neutron stars. Moreover, the event of the latter type has already been registered for the second time.
A "packet" of passing gravitational waves was detected in April 2019 by the LIGO detector in Livingston in the United States. Having tracked the location of the source, the scientists pointed telescopes of observatories to this place from different places on the globe and investigated this space in the optical, radio, x-ray and gamma ranges. The second LIGO detector in Hanford at this point in time was off, and the signal of gravitational waves was too weak and was below the limits of the Italian Virgo detector.
Unfortunately, the last signal from a collision of neutron stars was not accompanied by signals in other ranges, like most of the other recorded signals. Nevertheless, the information contained in it has added quite a lot to our understanding of the nature of gravitational waves.
The unusual feature of the second recorded collision of neutron stars lies in the mass resulting from the fusion of a large neutron star. It exceeds the mass of the Sun by 3.4 times, and all other neutron stars formed as a result of such cases have a mass not exceeding 2.9 solar mass.
"First, the second recorded event associated with the two neutron star system allowed us to confirm the event recorded in 2017," says Jo van den Brand, lead researcher, "In addition, from observations in In the usual ranges, we were aware of 17 systems with two neutron stars and the approximate masses of these neutron stars. caused such a discrepancy".
Toyota plans to build a futuristic city for artificial intelligence, robots, and ...
In his show at CES 2020, Akio Toyoda, president of Toyota Motor Corporation, announced plans to build a futuristic prototype
A robot that alone can handle charging an entire parking lot clogged with electric cars
A few years ago, at an event called Future Mobility Day, Volkswagen Group representatives showed the public a small robot
Iran has not completed the US revenge for the murder of Suleimani
According to Ali Shirazi, "it is not necessary that retaliatory actions are carried out only by Iran, but the resistance
Rouhani promised to bring to justice those responsible for the crash of the Ukrainian ...
Iranian President Hassan Rouhani has promised to investigate the crash of the Ukrainian Boeing near Tehran and punish those who
It became known about the strike on an airbase with the US military in Iraq
Balad airbase in Northern Iraq, where the US military is located, was attacked. Free News reported. As stated by the
Scientists working at the LIGO Gravity Observatory have announced yet another discovery of gravitational waves caused by the collision of
SOFIA Flying Observatory takes the most detailed shot of the center of our galaxy
Not so long ago, the data obtained using the SOFIA (Stratospheric Observatory for Infrared Astronomy) flying astronomical observatory were used
Director: John Kessler
Chief-Editor: Steve Cowan
Copyright © 2020 Use of materials of the publication is allowed only when placing a hyperlink to the original in the FREE NEWS.