Astronomers have innovatively discovered dozens of new rogue planets in the Milky Way, almost doubling the known number of these mysterious worlds.
According to a new study, a team of researchers has discovered a collection of at least 70 extrasolar extrasolar planets in the vicinity of space 420 light-years from Earth. It is the largest single group of rogue planets ever discovered.
- rogue planets; "We did not
know how long to wait," said Nria Miret-Roig, lead author of the
study and astronomer at the Bordeaux Laboratory of Astrophysics in
France and the University of Vienna in Austria. And we are excited
to find this number. "We measured the small motions, colors, and
luminosity of tens of millions of sources in a large area of the
Most extrasolar planets are detected by observing their host stars. For example, astronomers notice the slight motion of a star created by the gravitational pull of a rotating planet around it, or observe that when a planet passes in front of a central star, there is a slight drop in the light it receives.rogue planets or planets alone, and they are much harder to find. Therefore, astronomers generally use a technique called gravitational microlensing, which is based on depressions in space-time. This method involves observing the motion of background objects against background stars. During such transitions, the front mass can act as a gravitational lens, bending distant light so that the mass of the object is closer and its other characteristics are determined.
But this is not the Way Mirt Rogg and his team did They gave. They have 20 years of images and other data collected by various telescopes on Earth and space, including the very large Southern European Observatory Telescope in Chile, the Japanese Subaru Telescope in Hawaii, the European Space Agency Gaia spacecraft, and the Dark Energy Telescope on the Victor Manu Telescope. The Central American Observatory of Chile has been installed, analyzed.
The location of 115 possible rogue planets is marked in red.
Credit: ESO/N. Risinger, Skysurvey
Researchers study the upper part of the constellation Scorpio (Ophiuchus) and the constellation Ophiuchus (Ophiuchus) in a new study published in the December 22 issue of the journal Nature Astronomy. They reported that they had observed infrared energy emitted from 70 to 170 rebellious planets of the gas giant. Young rogue planets with this large mass are irradiated by the heat of their formation in the first few million years of life.
- The smallest wandering planet in the Milky Way galaxy
This interval for the number of planets is due to uncertainty because the observations made do not allow the team to determine the exact mass of the observed objects, and the objects are at least 13 times more massive than Jupiter, probably full-formed stars. , Known as brown dwarfs.
The new findings reinforce the idea that rogue planets are common throughout the Milky Way galaxy, and may even outnumber the normal worlds orbiting their mother stars. "These rebellious planets may be exiled from familiar planetary systems," said Herv Bouy, an astronomer at the Bordeaux Astrophysics Laboratory in France. "Having a host star roams."
More research on these newly discovered planets and other similar worlds could help astronomers gain a better understanding of how rogue planets came to be, according to members of the research team.
For example, it is not yet clear whether most of them are single and composed of a cloud of very dense material that cannot produce stars. Or are they usually born in normal star systems but enter the vast, dark vacuum of the universe as a result of intense gravitational interactions? .
- The future of extrasolar planet hunters
Cover photo: Graphic design of a rogue planet
Credit : NOIRLab/NSF/AURA/J. da Silva
Sources: Space, Science Alert
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