Approximately half of the stars in the Milky Way are single, like our Sun. The other half revolves around the other
This system is part of a rare class of binariessystems known as cataclysmic variables. In them, one star, similar to the Sun, revolves around a white dwarf - the hot, dense core of a dead star.
Decades ago, astronomers predicted that thesecataclysmic variables must move and move closer and closer together until they form incredibly tight orbits. In the course of new observations, scientists have found direct evidence of a cataclysmic variable in this transitional phase.
They are called so because they emitvariable flashes of light that astronomers thought centuries ago were due to unknown cataclysms or "catastrophes" in space. In fact, the outbursts are due to the fact that the white dwarf slowly accretes or consumes the material of the partner star.
A newly discovered system called ZTFJ1813+4251 has the shortest orbit among cataclysmic systems to date. Astronomers discovered it due to the fact that each of the stars momentarily eclipsed the other. This allowed scientists to take precise measurements of each and run simulations to see how the system would evolve over millions of years.
The simulation showed that the stars are intransition period and that the sun-like star "donated" most of its hydrogen atmosphere to the white dwarf. In about 70 million years, the stars will approach even more. In the near future, they are likely to have an 18-minute orbit. After that, they will eventually expand and disperse.
An asteroid with a diameter of half a kilometer approaches the Earth
Giant 'scar' on Earth's surface shown from space
It turned out what happens to the human brain after one hour in the forest