Kepler Witnesses A star system for vampires exposed to super explosions, NASA’s Kepler probe is said to track exoplanets and look for dark stars as the planet crosses the star’s face.
Fortunately, the same design is ideal for observing other astronomical transitions – objects that glow or darken over time. A new search for Kepler’s archived data has revealed a super unusual explosion of previously unknown dwarfs.
The system is illuminated by a factor of 1600 less than a day before it slowly disappears.
The intended star system consists of white dwarfs with brown dwarf satellites, which are about one-tenth larger than white dwarfs. White dwarfs are the remaining core of an aging star that resembles the sun and contains approximately the value of solar matter in a ball the size of the earth.
Brown dwarfs are objects with masses between 10 and 80 Jupiter that are too small to combine.
Brown dwarfs orbit white dwarfs every 83 minutes at a distance of only 400,000 km – roughly the distance from the earth to the moon. They are so close that the gravitational force of white dwarf removes matter from the brown dwarf and sucks its essence as a vampire. The extracted material forms the disk when it bends toward the white dwarf (known as disk accretion). now the nasa’s Kepler Witnesses A star system for vampires exposed to super explosions.
This illustration shows the newly discovered dwarf dwarf system in which a white dwarf attracts material from a brown dwarf satellite.
Material is collected in an accretion disc until it ruptures, which causes a sudden increase in brightness.
Using Kepler’s archive data, the team monitored an unprecedented and unexplained incremental increase followed by a super blast, illuminating the system with a factor of 1600 in less than a day.
Kepler might look in the right direction when this system experiences a super explosion that passes more than 1000 times. In fact, Kepler is the only instrument that can testify about this because the system is too close to the sun. Kepler Witnesses A star system for vampires exposed to super explosions.
The fast rhythm of Kepler’s observations, which records data every 30 minutes, is crucial for capturing all the details of an explosion.
Kepler records all events and observes slow brightness increases, followed by fast amplification. While enlightenment is suddenly predicted by theories, the slow initial cause remains a mystery.
The standard theory in disk accumulation physics does not predict this phenomenon, which is then observed in two other New Dwarf super bursts.
This dwarf system has been studied for decades, so it’s quite complicated to see something new.
We see accretion disks everywhere – from rising stars to massive black holes – so it’s important to understand them.
The theory shows that over-burst is triggered when the accumulated disk reaches a predetermined break point. When he accumulates material, it grows in size, while the outer edge experiences gravitational resonance with the orbit of a brown dwarf. This can cause thermal instability, causing the disk to overheat.
In fact, observations show that disk temperatures under normal conditions increase from around 5,000 to 10,000 ° F (2,700 to 5,500 ° C) to 17,000 to 21,000 ° F (9,700 to 11,700 ° C). ) at the height of the super explosion.
This new type of dwarf system is relatively rare, only about 100 are known. A single system can take years or decades between an outbreak, making it difficult to catch one red hand.
The team plans to continue to access Kepler data as well as data from other exoplanet hunters, the Exoplanet Transit Mission (TESS), to look for other transients.
Continued observation by Kepler / K2 and now the TESS of this dynamic star system allows us to study the earliest time of explosion, a time domain that is difficult to achieve from ground-based observatories.