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The artist’s impression of the repeated Takaful Nova similar to T Corona Borealis, with a accumulation of the material stolen from a red giant that rotates a white dwarf. | Credit: International Gemini Observatory/Noirab/NSF/Aura/M. Garlick/M. Zamani
A new collection of predictions of the so -called “Blaze Star”, T Corona Borealis indicates that the star may go Nova on March 27, November 10, or June 25, 2026. However, other astronomers are skeptical of these predictions, which are based on an implicit pattern in the composition of the traditional system,
“R Corona Burialis [T CrB] “A unique being has been fascinated by professional amateurs and astronomy for more than a century,” said Lea Blancwarts of the Space Institute.
T CRB is a biopsy, a vampire system in it White dwarf It is siphon material from a Red giant star. White dwarf is the remains of the intense density integrated once sun-He loves starFill out the equivalent block to write the star in a folder about Earth size. The red giant represents an early stage in the development of the star, when the sun -like star begins to deplete hydrogen fuel supplies and begins to swell. The swollen atmosphere becomes an easy prey to the risk of the smaller, but thick and white dwarf.
The materials taken from the red giant constitute a spiral tablet around the white dwarf, ultimately depositing this substance on the surface of the white dwarf. Once you accumulate enough materials, a thermal nuclear explosion. The white dwarf does not destroy, but we can see the explosion light across thousands of Light years.
We call this Nova, after Latin, about a “new star”.
T CRB usually express approximately +10, which means that it is so so that it can only be seen through moderate telescopes or large endoscopes. However, when Nova goes, it lights up to see the bare eye, and thus becomes a brief period of “a new star” in the sky of the night.
T CRB is actually more special than that, because it is only one of 11 known “frequent” Novas, which is seen that it goes over and over again, with gaps less than 100 years between explosions. Previously, on February 9, 1946 and May 12, 1866, the white dwarf went to the TRB Nova system. Nova went around Christmas in 1787, although exact history is unknown, and there is also a suggestion that Nova is connected to this star was seen at some point in the night sky of 1217.
Before 1946, T CRB shine a little in 1938, before it was adopted again before going to Nova. The same style was seen in T CRB this time, with 0.7 standards in 2015 before blackout again in 2023. For this reason, astronomers expect a new Nova.
Jean -Schneider of the Paris Observatory also noticed what it is believed to be a style of Time of T CRB NOVA events. The red and white giant dwarf takes 227,5687 days for each other, and Schneider believes that each Nova occurs after a time equal to a full number of orbits. In other words, something about the position of the white dwarf and the red giant leads to the interruption of Nova, he says.
However, because its orbits are circular, one position should not have an effect. Therefore, the Schneider suggests having a third object in the T CRB system for a wider and elliptical. Every 79-80 years, he says that the third object is close to the white dwarf, which means that the white dwarf can feed on both the red giant and the third virtual object at the same time. This would enhance the rate of falling on the white dwarf, which creates the conditions of Nova.
Until now, this third being, if it exists, has not been discovered, but Schneider tells Space.com It “can be discovered by astronomical measurement, radial speed, direct imaging, microbial transportation.”
In fact, Schneider wonders if it is not already discovered but not recognized. On April 21, 2016, the T CRB suddenly increased in visual brightness by 0.5 standards.
“I have the next qualitative interpretation, which is that before that, the third body was outside the pixel opposite the visual measurements,” he said. In other words, the third object was transferred near the other two components of the T CRB, which from our point of view was a pixel sharing with them in the pictures, adding its brightness to the common light of the red and white giant dwarf.
However, other astronomers are not yet convinced. Léa Planquart T CRB studied and other frequent Novas, and in January a paper The mass transportation between the red giant and the white dwarf based on radiological speed notes with the Hermes Spectrum on the 1.2 -meter -of -Los Angeles telescope in Chile. The radial speed here, for the context, refers to the variable Doppler movements of the individual stars and the issue that is transferred between the red giant, known as the “accumulation” and the white dwarf.
“Jean Schneider suggested that there is a third companion in an eccentric orbit with a period of 80 years,” Planquart told Space.com. “Such an additional tropical movement has not been discovered in monitoring the radiological speed that lasted for a decade.”
In other words, radiological speed measurements show no evidence for a third star, although Planquart cannot exclude a low -mass body like a large Exoplanet.
Jeremy Sherez, director of the changing stars department at the British Astronomical Society, has doubts. “Most astronomers are skeptical of this prediction, as I am,” he told Space.com. “The best thing to do is continue to watch every clear night.”
There should not be a third object, and if the pattern that Schneider sees on the previous Novas dates is just a coincidence, what happens to T CRB?
Photography an artist for what Nova might seem. | Credit: NASA
Credit: NASA Space Center
Planquart observations made some light on this issue, especially the brightness seen in 1938 and 2015, followed by a blackout, recently seen in 2023.
“We realized that from 2015 to 2023, the accumulated disk around the white dwarf reached the maximum extension of it and became more hot and more bright, which led to an increase in brightness,” said Blancors. This reinforced what Planquart calls “the effect of Vampirization”, which increases the transfer of the material to the white dwarf in a “ultra -active stage”. Then, in 2023, the accumulated disk was cooled back again, which led to obfuscation, although the material continues to flow from the disk to the white dwarf at a slower rate.
“This enhanced activity is likely to be necessary to cause the Nova explosion, because it allows the materials to accumulate more quickly,” said Plancors.
Then, in 2023, the accumulated disk was cooled back again, which led to obfuscation, although the material continues to flow from the disk to the white dwarf at a slower rate. However, the details are still somewhat unclear-what causes a change in the accumulation disk that leads to a highly active stage, and what happens exactly on the surface of the white dwarf between the disc cool again and the Nova explosion?
Although the exact predictions of Schneider may pass or do not pass, the highly active stage pattern followed by calm and threat indicates that Nova was just around the corner. “We may expect to see the explosion in the coming months – or perhaps next year,” said Blancors.
When that happens, what can we expect to see him in the night sky? In 1946, T CRB reached the size of +2, which means it was clear to the naked eye, similar to brightness to the large Dipper stars. Scissors expect to be bright this time.
Located in the Corona Borealis constellation, the northern crown, which is currently visible in the night sky across the entire northern hemisphere and from South Africa and Australia (albeit low in the sky from the southern sites).
“For the present time, T CRB is the tenth size, so it is only visible in giant perspectives.” “But when it rises [in brightness] It will become visible in standard perspectives and then the naked eye. “
The height of brightness will be fast. “It is a matter of only a few hours for a rise to occur – specifically, their number is not known specifically that the ascension has not been arrested before,” Shirz said. “That’s why it is very exciting. We hope that with many observers this time, we may actually pick it up because it wakes up from its slumber.”
In fact, there will be many observers, as astronomers are waiting and watching a glimpse of this rare Nova and learn more about what is happening on the surface of this white dwarf when it hosts a giant giant nuclear explosion. “When it explodes, it will be one of the widespread things that have been widespread, which are targeted by telescopes all over the world,” said Blancors.
As for the future of T CRB, the biggest explosion is on the horizon. The white dwarf mass in T CRB is 1.37 times A block from our sun. This is very close to Chandrasekhar limitAnd it is 1.44 solar blocks, which is the point where the thermal nuclear bombing overcomes the white dwarf and hit it to Smitherens as the type IA Supernova. While stealing the mass from his giant red companion and growing in this process, he speeds up his demise.
Related stories:
– Is “Blaze Star” about the explosion? If so, here is the place of looking at March
– The Nova Star explosion was 100 times more brighter than the sun
– This astronomy was found an additional star in the James Web telescope data
“As the white dwarves are approaching, reducing its radius reduces its radius and its superficial weight increases,” said Ken Hinkkel, astronomer in Nulab, Toxon, Arizona. “This results in a short time between explosions.”
As the white dwarf approaches the end of the Chandricherjar, the Nova events will become more frequent, up to one day … a boom! But it will take hundreds of thousands, if not millions, from the years until the white dwarf reaches that stage, so there is no impulse to add it to your calendar. Meanwhile, we will continue to watch the sky for the latest Nova.
Jean Schneider’s paper was published in Research notes on AAS.
