What exactly SDSS1133? Blackhole or Supernova

Astronomy Science ~ An object that was previously considered as a possible supernova is actually a black hole that removed from their home ...

Astronomy Science ~ An object that was previously considered as a possible supernova is actually a black hole that removed from their home galaxy.

Further observations should provide a definitive answer, but whatever the outcome, this object will be unique:

- If the supernova, then it will be a new generation supernova emitted for decades (1 decade = 10 years), whereas most supernovae burned in less than a year.

- If it's a black hole, it seems to be the result of two black holes collide, and simultaneously removed from the merger of its parent galaxy.

Images taken by the Keck II Telescope in Hawaii which shows the dwarf galaxy Markarian 177 galaxy is thought to be the result of a merger of two galaxies. SDSS1133 object (bottom left) is probably a black hole ejected into space during the merging galaxy Markarian 177.
"It could be a new type of supernova that has never been seen before. But it will be one of the most extreme cases ever observed," said astronomer Michael Koss, who led the study. On the other hand, Koss said it could provide new information about the trip all the black holes. "Whatever we find, it was interesting."

A Light In The Place That Should be Dark

Koss from the Swiss National Science Foundation, began looking for objects in 2010. Previous observations indicate that SDSS1133 is a supernova, a star that has reached the end of its fuel and explodes in a spectacular flash.

But Koss shocked when he found the picture archives of telescope Pan-STARRS taken in the 1950s, with SDSS1133 clearly visible in the sky. SDSS1133, whatever it is, has been shining brightly for over 60 years. No known supernova ever burned for so long. And in the last six months, the object began getting brighter. Usually a supernova releases a brilliant flash and then dim.

Based on the latest observations using several instruments, including NASA's SWIFT telescope, Koss said a more interesting hypothesis, he says that SDSS1133 is a black hole. Objects black holes can look very bright, as the gravity of the black hole can heat up nearby gas, which is then transmitted. Brilliant black holes also called Active Galactic Nuclei (object family that also includes quasars), as they are commonly found in the centers of galaxies.

However, SDSS1133 looks is located 2,600 light-years away from the core of its parent galaxy. Markarian 177 is a dwarf galaxy that is located inside the bowl Big Dipper, in the constellation Ursa Major. The observations with the Keck II telescope at the WM Keck Observatory in Hawaii show evidence that Markarian 177 has recently experienced a significant disruption.

"We think we are seeing the result of the merger of two smaller galaxies and black holes at its centers," said co-author Laura Blecha, at the University of Maryland's Department of Astronomy, said in a statement. Blecha studied how two black holes can join together and experience the recoil (jumps), a kick that can potentially send a new black hole was thrown from its parent galaxy. "Astronomers are searching for a black hole that jump until now have not been able to detect it, so finding one of objects such as this would be a major discovery."

Leap in the merging black holes formed from the gravitational waves, which are ripples in space and time, said Koss.

"The collision of black holes is the largest source of gravitational waves," said Koss. If SDSS1133 is the result of a merger of the black hole, it would be interesting because it means the type of events that can take place in dwarf galaxies, he said. "There are a lot of dwarf galaxies near us. So [merging black holes] may be something that we really can be detected."

So What Actually this object?

To find out if SDSS1133 are black holes or supernovae, researchers will look for the presence of a type of carbon, called carbon 4. Intensity merging black holes can create high volume of carbon 4 surrounding material. Koss said the team must be able to observe the abundance of carbon 4 with the observations made by the Hubble Space Telescope or Chandra X-Ray Observatory.

Whatever it is, SDSS1133 is an object of interest.

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AstroNation: What exactly SDSS1133? Blackhole or Supernova
What exactly SDSS1133? Blackhole or Supernova
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