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Any stars in the universe can collide, whether they are "alive", meaning fusion is still active in the star, or "dead", with fusion no longer taking place. White dwarf stars, neutron stars , black holes , main sequence stars , giant stars , and supergiants are very different in type, mass, temperature, and radius, and accordingly produce ...
Artist's impression of neutron stars merging, producing gravitational waves and resulting in a kilonova. A neutron star merger is the stellar collision of neutron stars.When two neutron stars fall into mutual orbit, they gradually spiral inward due to the loss of energy emitted as gravitational radiation. [1]
Although stars are more common near the centers of each galaxy, the average distance between stars is still 160 billion (1.6 × 10 11) km (100 billion mi). That is analogous to one ping-pong ball every 3.2 km (2 mi). Thus, it is extremely unlikely that any two stars from the merging galaxies would collide. [6]
Recently, researchers from the University of Copenhagen re-analyzed data from the first-ever detected kilonova—a massive explosion that occurs when two neutron stars collide, merge, and collapse ...
The origin and properties (masses and spins) of a double neutron star system like GW170817 are the result of a long sequence of complex binary star interactions. [41] The gravitational wave signal indicated that it was produced by the collision of two neutron stars [9] [18] [20] [42] with a total mass of 2.82 +0.47 −0.09 solar masses (M ☉). [2]
For example, when two disk galaxies collide they begin with their stars in an orderly rotation in the planes of the two separate disks. During the merger, that ordered motion is transformed into random energy (“thermalized”). The resultant galaxy is dominated by stars that orbit the galaxy in a complicated and random interacting network of ...
This artist's impression shows a kilonova produced by two colliding neutron stars. On October 16, 2017, the LIGO and Virgo collaborations announced the first detection of a gravitational wave (GW170817 [9]) which would correspond with electromagnetic observations, and demonstrated that the source was a binary neutron star merger. [10]
The holiday season, especially the week between Christmas Eve and New Year’s Day, pulls thousands of people to cinemas. How the holiday and moviegoing became so intertwined for Americans is a ...