A group of astronomers has recently found a huge neutron star using the Green Bank Telescope (GBT) and the star is found to be located 4,600 light-years from Earth. This new object is on the verge of existence as it has almost reached the highest mass level that a neutron star can. The neutron stars are basically the debris of massive stars that have gone supernova. These are really dense objects to be found in the Universe. A sugar-cube sized neutron star would weight almost 100 million tons on Earth. The interiors of these stars are still being scrutinized by the astronomers using the National Science Foundation’s GBT.
The NANOGrav Physics Frontiers Center researchers have found a rapidly rotating millisecond pulsar, named J0740+6620, to be the most massive neutron star to exist. It is almost 2.17 times the mass of our Sun and rotating at a speed of 30 Kilometers across. This is the maximum limit an object can get to despite crashing into a black hole. The neutron stars are ginormous atomic nuclei that have weird internal properties. The twin beams of radio waves being emitted from the magnetic poles of the pulsars turn the space into a lighthouse. The speed of rotation of the pulsars helps the astronomers use it as a cosmic comparable to atomic clocks. The masses of the stellar object and theory of general relativity in space can be well understood using the nature of spacetime.
The binary system helps astronomers measure the masses of the two stars. The pulsar speeding behind the white dwarf tends to cause a delay in the signal. This is known as Shapiro Delay. The white dwarf has its gravity pulling the space around it and this tends to push the pulses a little further from the distortions of spacetime caused by the white dwarf. This can help calculate the masses of the two bodies. The GBT has shown the neutron stars to have its dense interiors become so extreme that even the gravitational force overpowers the ability of neutrons to resist further collapse. On a similar note, the researchers have been able to decode a rare pattern in the X-ray bursts released by a neutron-star system that is approximately 16,300 light-years away. MAXI J1621−501, the star system, is an unusual point in space emitting unpredictable X-rays that was mentioned in the data presented by the “Swift/XRT Deep Galactic Plane Survey.”
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