National Port, MD. – A bright stroke in a distant galaxy can connect two mysterious categories of cosmic flames. The event, which astronomers call Platypus games, can also offer a new way to understand the origin of the supermasive black holes that live in most galaxies centers.
The excellent explosion, contaminated in a dwarf galaxy about 6.5 billion years of light from the ground, has many of the signs of a tidal rift event, the last ignition of a star that is breaking away from a black hole. But it also resembles another type of flash, called a lfbot, which astronomers think may be a star of the explosion star.
Platypus could connect both, astronomer Vikram Ravi I Caltech reported January 15 at a meeting of American astronomical society.
Ravi and colleagues were not looking for lfbots, or bright quick-blue optical transitions. Instead, the team sought the tidal breakdown events around the black holes of the intermediate mass, with measures a few thousand times more than the sun.
“These are offspring, or seeds of supermasive black holes,” which can be billions of solar masses, says study co -author Jean Somalwar, an astrophysicist in Caltech. Understanding these elusive beasts can illuminate how supermasive black holes are formed.
Using the Palomar Observatory near San Diego, the team found a promising ignition in July. The following observations with the Hubble spatial telescope showed that the explosion came from the outskirts of a small galaxy. The brightness of the explosion was 100 times more than all the stars in that galaxy.
“Judah is just an extremely bright source, brighter than really almost everything we’ve seen before,” Somalwar says.
The explosion can come from an extremely massive star “making a crazy explosion,” Somalwar says. The other suspect is a supermasive black hole that breaks a star. But a galaxy that maybe they probably miss the two. “We think a black hole with intermediate mass is a really good candidate,” she says.
Platypus also looked like a lfbot: she shone intensively in the blue light, and rose quickly to shine. But while the brilliance of most LFBOTS evolves over a few days, Platypus shone for two weeks – more as a tidal rift event.
The team hopes to get simultaneous observations with Hubble and the James Webb space telescope next month, which can help clarify the origin of Platypus. And the next observatory Vera Ruby in Chile should find hundreds of other platypus -like events, if there is more to find.
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