what comes after a black hole?
2006-09-06 05:24:44 · 7 answers · asked by Anonymous in Science & Mathematics ➔ Astronomy & Space
Different kinds of stars have different fates, depending on their mass.
The highest mass stars become Black Holes.
High mass stars become Neutron Stars
Moderate-mass stars become White Dwarfs, which cool to become, eventually, non-shining White Dwarfs (Grey Dwarfs)
Low-mass stars (like Red Dwarfs) become something like a Brown Dwarf or large gas giant planet
These end points of stellar evolution can be modified by adding extra material. For example, you can explode a Neutron Star into a Black Hole, by throwing things at it. Given a long enough time, everything might turn into a Black Hole.
Black Holes, left alone, will eventually explode due to Hawking Radiation. This takes an enormously long time---much, much longer than the age of the Universe. The explosion releases energetic particles, and the Black Hole disappears. So in the end, nothing is left.
2006-09-06 07:24:29 · answer #1 · answered by cosmo 7 · 0⤊ 0⤋
Red dwarf stars do not become black holes. Red dwarf stage is what main sequence stars go through, such as our sun. In order for a star to become a black hole, it needs to be a very massive star.
The sequence for that kind of evolution would be blue, red giant, supernova, and then neutron star or black hole.
A black hole may be rejuvenated by hot mass from a nearby star that it pull into itself. But otherwise, they just remain as they are. There are theories that black holes "evaporate" mass.
2006-09-06 05:49:02 · answer #2 · answered by Brad Harvengi 1 · 1⤊ 0⤋
Red dwarf is not a stage of stellar evolution. Red dwarfs are small, dim main sequence stars with very long (~ 1 trillion years) life expectancy. For a Sun-sized star, the life cycle is roughly main sequence => red giant => white dwarf. Much larger stars go main sequence => supergiant => neutron star or black hole. Black holes do not evolve that we know of, they just very slowly evaporate.
2006-09-06 07:36:07 · answer #3 · answered by injanier 7 · 0⤊ 0⤋
not a lot.
It's conjectured that slowly they evaporate away via Hawking radiation. I think the calculated timescale for a stellar mass black hole is about 10^60 years.
2006-09-06 05:27:38 · answer #4 · answered by Morgy 4 · 1⤊ 0⤋
nothing, once a black hole, always a black hole. the black hole is final.
But it does emitt some radiation of xray ...
2006-09-06 13:25:13 · answer #5 · answered by jhstha 4 · 0⤊ 1⤋
hard step. seek on google. just that could help!
2014-12-04 16:12:50 · answer #6 · answered by Anonymous · 0⤊ 0⤋
=Answer in your science book
2006-09-06 05:27:30 · answer #7 · answered by Anonymous · 0⤊ 0⤋