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Inteline: a white dwarf clarification. Main Summit: GAIA22ayj seen in X -rays and visible light. Main bottom: GAIA22ayj photos taken by the Zwicky Transign facility. | Credit: ZTF/Caltech visual notes/a. Rodriguez/Wift/XRT/NASA PANSTARRS/Univ. From Hawaii.
Astronomers discovered the “missing link” that connects the death of the sun -like stars to the birth of the white dwarf stars, in the form of a white dwarf “vampire in adolescence.”
This vampire does not care about the blood that passes through your veins. the White dwarf In the question, the designated Gaia2ayj is located about 8150 light years away from the ground, it feeds wonderfully on the stellar plasma of the companion star.
Note the team that made this discovery the white dwarf using Zwicky facility (ZTF) at the Palomar Observatory in California. The researchers wiped the night sky over the northern hemisphere, and hunting “crossing” – astronomical bodies subject to rapid change.
Gaia22ayj originally attracted the attention of astronomers with a rapid pulse signal, which led to its classification as a Separate double white dwarf Two white dwarf stars rotate each other.
However, this theory did not coincide with more notes on the Gaia22ayj, which revealed it is one of the most extremes ever, as it increased in brightness by 700 % over just two minutes.
This is because Gaia2ayjj is actually a white dwarf that feeds on a accompanying star, with this duo in a rare and short -term stage of his life (or death should be).
ZTF’s GAIA22ayj images reveal that it is among the most extremes known in space. Gaia22ayj is located in the center of the image, brighter in the right image of the left image, which was taken two minutes ago. | Credit: ZTF/Caltech visual notes/a. Rodriguez
Know your dead stars
Stars die after using the necessary fuel for nuclear fusion. Any kind of death, and afterlife, they depend on their mass.
The stars with the fans over eight times that Sun He dies in violence Supernova explosions Then it becomes either very dense Neutron stars or Black holes. Stars with masses close to the sun do not “don’t go Nova”, instead, they are subject to more silent transformations to white dwarves.
Our sun will witness this last transformation about six billion years ago after I get rid of most of its schedule while swelling Red giant The stage, ultimately stops the star Ember.
However, about Half of all stars with similar fans to you You have a bilateral companion star. If their accompanying stars approach, the white dwarves can get a second explosion by stripping them of stellar materials. The transmission of the mass of vampires is exactly what appears to happen between the white dwarf of Gaia22ayj and its accompanying star.
An illustration of the white dwarf stereotypes of the accompanying star. | Credit: Robert Lea (created with Kanfa)
Gaia2ayj initially confused astronomers. The way the intensity of light varied over time – the light curve – has no meaning for a separate double dual dwarf duo.
This was led by Tony Rodriguez, a student of high studies in the ZTF Stellar Institute of Technology in California, to ask why the light curve took the shape he did. Collect more data, Rodriguez and his colleagues realized that Gaia2ayyj is likely to be a white dwarf around which “natural” revolves around him Low block starIt is not a second white dwarf. They also decided that the Gaia22ayj is very magnetic, with a white dwarf component yarn.
This reminded them of a white dwarf PulseA very deadly magnetic star sweeping the electromagnetic radiation across the universe while it comes, such as the cosmic lighthouse. However, the Vampire feeding The process in Gaia2ayj is usually not usually associated with white dwarfs.
GAIA22ayj is a dual stars system in which a white dwarf star is very close to its accompanying star so that the mass is transferred from the facilities to the white dwarf. Here, the system appears in X -rays (left) and in visible light (right). | Credit: Swift/XRT/NASA (left); Panstarrs/Univ. Hawaii (right). The image created by a. Rodriguez
The team eventually concluded that Gaia22ayj is a missing link in the life of the white dwarf stars, which is an early and short -lived stage of these things.
“We have already seen two infants, white dwarf stars in a dual system around which a strong magnetic field revolves. We saw many of the extreme stars systems as the white dwarf star was very slowly.”
He added: “But this was the first star we saw in the middle of the” teenagers “stage, when he actually established a strong magnetic field and just began to transform the material from the accompanying star to himself.” “We have never fell before a system in the process of rotation very quickly, but also slowly slowed down, all with the mass gain from his companion.”
This discovery is more exciting because this stage lasts for only 40 million years. This may seem an incredibly long period of time, but it is relatively short when considering that the stars like The Sun Live for 10 billion years before turning into white dwarves. Thus, this “teenage stage” represents only 0.4 % of the star’s life. For context, if the star is an average person, this teenage stage will last about 107 days.
Something enough time to draw your black bedroom.
Related stories:
– White swollen dwarves can shed light on the mysterious dark matter. Here is how.
– White dwarves are “heavy metal” coma stars.
– The white dwarf star “Dardevil” can be the closest thing to a strange black hole
“The data taken in WM KECK Observatory Rodriguez said: “I have provided constant evidence that this system had a strong magnetic field and was transporting the material to the white dwarf. Additional data from the unique tools available in Palomar Observatory showed that this system is significantly slowing.”
The team’s research was published in February in the magazine Publications of the Astronomical Society in the Pacific Ocean.
