Neutron star - Wikipedia
The fastest-spinning neutron star known is PSR J1748−2446ad, rotating at a rate of 716 times per second [ 14 ][ 15 ] or 43,000 revolutions per minute, giving a linear (tangential) speed at the surface on the order of 0.24 c (i.e., nearly a quarter the speed of light).
How big is a Neutron Star? - Astronomy Explained
Neutron stars are about 20 kilometers (12 miles) wide – it is essentially quite small on the astronomic scale. Despite their small size, neutron stars have incredible gravity and magnetic fields. Their mass is often 1.4 times that of the Sun. This is packed into a tiny area, so it becomes extremely dense.
Recently Discovered Neutron Star Is Almost Too Massive to Exist
2019年9月18日 · The team found that MSP J0740+6620 is about 2.14 times more massive than our own sun. That makes it the largest neutron star ever recorded—and close to the theoretical limit for the objects....
‘Black widow’ is heaviest neutron star after devouring its stellar ...
2022年7月27日 · CNN — Astronomers have spied a “black widow” lurking in space 3,000 light-years from Earth, and it’s a record-breaking cosmic object. Called a neutron star, the dense, collapsed remnants of a...
Heaviest neutron star to date is a ‘black widow’ eating its mate
2022年7月26日 · A dense, collapsed star spinning 707 times per second — making it one of the fastest spinning neutron stars in the Milky Way galaxy — has shredded and consumed nearly the entire mass of its stellar companion and, in the process, grown into the heaviest neutron star observed to date.
The heaviest neutron star known is shredding its companion | Space
2022年7月26日 · Recent measurements show the star weighs 2.35 times as much as the sun, which makes it the heaviest neutron star known. Neutron stars are stellar corpses, remnants of supernova explosions left...
Astronomers Detect the Most Massive Neutron Star Yet | Space
2019年9月16日 · Astronomers have discovered the most massive example yet of the dead stars known as neutron stars, one almost too massive to exist, a new study finds. Neutron stars, like black holes, are...
Scientists just found the biggest neutron star (or smallest black …
2020年6月23日 · A new gravitational-wave detection points to the largest known neutron star or the smallest known black hole, and suggests weirder things still to come.
Vela Pulsar - NASA
2013年1月7日 · The star of this movie is the Vela pulsar, a neutron star that was formed when a massive star collapsed. The Vela pulsar is about 1,000 light years from Earth, spans about 12 miles in diameter, and makes over 11 complete rotations …
What are neutron stars? The cosmic gold mines, explained
2023年12月27日 · “Neutron stars are just 10 to 15 kilometers [in diameter] no matter what, so it’s very hard to image such an object,” says Safi-Harb.