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M82 X-1 is an ultra-luminous X-ray source located in the galaxy M82.It is a candidate intermediate-mass black hole, with the exact mass estimate varying from around 100 to 1000 solar masses.
Cygnus X-1 (abbreviated Cyg X-1) [11] is a galactic X-ray source in the constellation Cygnus and was the first such source widely accepted to be a black hole. [12] [13] It was discovered in 1964 during a rocket flight and is one of the strongest X-ray sources detectable from Earth, producing a peak X-ray flux density of 2.3 × 10 −23 W/(m 2 ⋅Hz) (2.3 × 10 3 jansky).
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]
Raygun returns!. The Australian breakdancer — who went viral during the 2024 Paris Olympics for her controversial routine — shed her polo uniform and went glam in a cover shoot for a new issue ...
Raygun noted in her interview that breakdancing "was considered a bit of a joke" in Australia. But now that it was officially included in the Olympics, she hopes it motivates more people to try ...
Later, science fiction introduced the concept of the handheld raygun used by fictional characters such as Flash Gordon. In Alfred Noyes' 1940 novel The Last Man (US title: No Other Man), a death ray developed by a German scientist named Mardok is unleashed in a global war and almost wipes out the human race.
On Friday, Aug. 9, Gunn (known as B-Girl Raygun), 36, went head-to-head with multiple breaking competitors in Paris, France. Viewers couldn't help but react to her "interesting" dance moves.
In order to reproduce all the known outbursts, the rotation of the primary black hole is calculated to be 38% of the maximum allowed rotation for a Kerr black hole. [10] [4] The companion's orbit is decaying via the emission of gravitational radiation and it is expected to merge with the central black hole within approximately 10,000 years. [11 ...