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Examples of MACHOs include black holes or neutron stars as well as brown dwarfs and rogue planets. magnetic switchback A sudden reversals in the magnetic field of the solar wind. magnetosphere A mostly convex region formed when a plasma, such as the solar wind, interacts with the magnetic field of a body, such as a planet or star. magnitude
OJ 287 core black holes — a BL Lac object with a candidate binary supermassive black hole core system [23] PG 1302-102 – the first binary-cored quasar — a pair of supermassive black holes at the core of this quasar [24] [25] SDSS J120136.02+300305.5 core black holes — a pair of supermassive black holes at the centre of this galaxy [26]
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 ...
A kicked black hole can also carry a star cluster with it, forming a hyper-compact stellar system. [71] Or it may carry gas, allowing the recoiling black hole to appear temporarily as a "naked quasar". The quasar SDSS J092712.65+294344.0 is thought to contain a recoiling supermassive black hole. [72]
A black hole with the mass of a car would have a diameter of about 10 −24 m and take a nanosecond to evaporate, during which time it would briefly have a luminosity of more than 200 times that of the Sun. Lower-mass black holes are expected to evaporate even faster; for example, a black hole of mass 1 TeV/c 2 would take less than 10 −88 ...
Tight binary solar systems are inhabited in science fiction -- remember the Star Wars world of Tatooine -- but humanity might find such planets inhospitable over the long term, and not just ...
Supermassive black holes receive the designation of the galaxy whose core they reside in. Examples are NGC 4261, NGC 4151 and M31, which derive their designation from the New General Catalogue and the list of Messier objects. Other black holes, such as Cygnus X-1 – a highly likely stellar black hole, are cataloged by their constellation and ...
That black hole happens to be Sagittarius A*, the one at the middle of the Milky Way. The finding not only sheds light on such stars, and how they might be able to survive such extreme environments.