When one of the stars in the binary system is a massive white dwarf and the other is a main sequence star, we often deal with catastrophic system. Components of such a system are not uncommon They orbit close to each other, transferring material from the main sequence star to the white dwarf. in time There are temporary lights associated with natural disasters From which comes the name of this type of system.
Scientists have found ZTF J1813 + 4251 . SystemWhich is about 3000 light years from Earth. The stars are located in the area constellation Hercules And create a disastrous system. Both system components They orbit each other in 51 minutesWhat has been described? in nature magazine.
System ZTF J1813 + 4251 It was subjected to astronomical observations. During the mutual eclipse, scientists were able to study the properties of both components and simulate their evolution. This led them to conclude that After 70 million years, the orbital time of both objects will shorten to 18 minutes. After that, the stars will likely begin to drift apart.
Observed stars Currently in transition. The main-sequence star, which is similar to the Sun, has been stripped of most of its hydrogen. This will reduce it to a dense helium-rich core. Dr. Kevin Bridge from the Massachusetts Institute of Technology He believes that making a deal at such a stage of mutual coexistence is indeed a rare event.
taut catastrophic system ZTF J1813 + 4251 It is listed in the directory Zwicky Transit Facility. It was found using a camera attached to a telescope in Palomar Observatory in California. I did the camera More than 1,000 photos of each of the over a billion stars in the skyIt measures its brightness over the course of days, months, and even years.
In these data, the catastrophic regime was observed by Dr. Kevin Bridgewho searched for objects with extremely short orbits characterized by flashes of light and gravitational waves. Further studies of the system for measuring the properties of both stars continued in WM Keck Observatory in Hawaii.
They show that the white dwarf is almost 1% of the sun’s diameter and half its mass. However, the second star is similar to Jupiter in terms of its parameters.
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