it only makes sense that neutron stars accumulating material from a binary partner could eventually become a black hole. The process of mass accumulation could take as long as millions of years, but the eventual
sun."(这些涟漪是由一个黑洞与一个未知物体碰撞引起的,该物体的大小是地球太阳的2.6倍。)和"pointed out that the unknown object could be a fast-spinning neutron star."(指出这个未知物体可能是一颗快速旋转的中子星。)可知,这个未知物体可能是一颗快速旋转的中子星。所以划线词"object"意为"a neutron star"...
When two neutron stars merge, it produces a cloud of debris and a burst of light called a kilonova. A pair of astronomers introduced themodel for neutron star mergersin 1998. They said that the mergers synthesized radioactive nuclei that provide a long-term he...
In a star’s core, fusion takes terrific temperature and pressure that is provided by the crushing gravity of the star’s overlying mass. For a star to be relatively stable, the outward force of the energy generated by fusion in its core must be balanced by the inward pull of the star’...
This explosion leaves behind a “remnant” in the form of a compact object – i.e. aneutron star– and a cloud of gas and dust that is ionized by the energy of the explosion. TheVeil Nebulais a prime example of a Supernova Remnant, as seen in this image captured using a small tele...
Readers including Patrick Falini of Baltimore, Md., pointed out a new research paper finding evidence that Earth was hit by a storm of gamma rays about 1,200 years ago, perhaps set off by the collision of two black holes, or of two very old neutron stars. The gamma-ray storm of 1,...
Chandrasekhar limit. Stars of less than eight solar masses (M☉) or so are thought to end their lives as a long-lived stellar ember called a white dwarf star. Above the limit, dying stars can become neutron stars orblack holes. But before they do, these heavyweights will explode in a ...
A kilonova is a bright blast of electromagnetic radiation that happens when two neutron stars or a neutron star and a stellar-mass black hole collide and merge.
This cloud becomes a flat, spinning disk, called a solar nebula. In the middle of this disk, a baby star forms and gathers material around it. Small particles in the disk stick together and make bigger pieces, like building blocks, which turn into baby planets. When the baby star gets ...
On 3 March 2005 astronomer Robert Quimby of the University of Texas in Austinspotted the brightest supernova yet recorded. Named SN 2005ap, it was about 300 times brighter than normal for a type II supernova. Some speculate that it marked the formation of a neutron star, black hole or a...