English
0

Astronomers have discovered a strange dust object around a star

منجمان جرم غباری عجیبی را در اطراف ستاره‌ای کشف کردند

The extrasolar planet transit satellite, or TESS, was launched in 2018 with the aim of discovering small planets around stars close to the Sun. A large team of scientists led by Karen Collins of the Harvard-Smithsonian Center for Astrophysics has discovered the variable mass TIC 400799224, which exhibits strange behavior.

The Tess mission has so far confirmed 172 extrasolar planets and has compiled a large list of 4,703 potential candidates for extrasolar planets. The satellite’s sensitive cameras capture images that cover a large field of view that is almost twice the area of ​​the constellation Orion.

Tess also has a catalog of celestial bodies called the TESS Input Catalog (TIC), which has a mass of more than one billion. By studying these objects further, astronomers were able to discover stellar pulsations, supernova shocks, planetary collapses, eclipsing triple star systems, and binary star systems that formed their own gravitational lens.

The team has now reviewed the TIC catalog with computational tools based on machine learning from observing the behavior of hundreds of thousands of variable masses. Astronomers have previously discovered crumbling planets and objects that spew dust out of themselves.

Strange lighting changes

Strange mass TIC 400799224 because Was considered In just four hours of observation, its brightness was reduced to 25 percent, and the changes in its brightness were accompanied by several glows, each of which could mean a blur.

Astronomers studied the object with other structures that explored the sky even before TESS, and found that it was probably a binary star system with one star orbiting 19.77 days. Probably another object orbits the star, spewing out clouds and dust from the sky itself and blocking the star’s light.

But although the period of the star’s pulsation and pulse is constant, the shape, depth, and period of the dust that covers the star vary, and can be detected in one-third of the star’s pulsation period, or even less. Of course, the origin of this strange crime is also a big mystery. For example, the amount of dust scattered around the star is very high, and if it is caused by the collapse of a mass like the asteroid Ceres, it will eventually last for another eight thousand years. However, during the six years of observation of this mass, the period of stellar pulsation remains constant and the mass that emits the dust also seems intact.

The team will now continue to monitor TIC 400799224, which will track changes over time over decades.

More Similar Posts

Leave a Reply

Your email address will not be published. Required fields are marked *

Fill out this field
Fill out this field
Please enter a valid email address.
You need to agree with the terms to proceed

Most Viewed Posts
Menu