Scientists discover the limit to the size of neutrin stars before they turn into black holes.
REPUBLIKA.CO.ID, JAKARTA — Neutron stars are one of the densest objects in the created universe. Neutron stars are the result of supernova explosions.
The only object denser than bintang neutron is a black hole. Black holes are predicted to form when neutron stars accumulate enough mass.
Astronomers now believe they know the size limit of a neutron star before it turns into a black hole. This research is reported in The Astrophysical Journal Letters.
Scientists have found a neutrin star that is almost exactly that size. The object in question is pulsar Black Widow as PSR J0952-060.
This is a pulsar. Pulsars are neutron stars that rotate faster than ordinary neutron stars.
What sets it apart from a conventional neutron star is that it spins very rapidly around its axis with a beam of material directed toward us. Pulsar PSR J0952-060 beats 707 times per second. It was a fast pulse.
Pulsar Black Widow associated with a companion star. This pulsar is powered from a companion star, by devouring matter from its companion star.
This pulsar takes components from its companion star which has grown into a red giant. Pulsars spin faster as a result of this theft, which results in more energetic particles.
Another star is stripped by this storm of particles, becoming the first to be planet-sized and finally to nothing. Its companion is now only 20 times larger than Jupiter in this system.
Pulsars can increase mass simultaneously, but only to a certain degree. Scientists have now calculated the maximum mass at which a pulsar can exist without causing a neutron star to disintegrate due to its mass.
Scientists observe 12 Black Widow pulsars. There, they found the pulsar’s highest mass at 2.35 times the mass of the Sun.
“By combining these measurements with several other Black Widows, we show that neutron stars must reach at least this mass, 2.35 plus or minus 0.17 solar masses,” lead author Roger Romani said in a statement. IflScience.
“We know roughly how matter behaves at nuclear densities, such as in the nuclei of uranium atoms,” said Alex Filippenko, Professor of Astronomy at the University of California, Berkeley.
Scientists will continue to search for this type of star in the hope of improving this mass estimate and understanding the boundary between neutron stars and black hole better.
