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This study suggests that the Oort cloud may be home to more asteroids and comets than the solar system


A new study shows that the discovery of Borisov, the first known interstellar comet to visit the solar system, suggests that there are more interstellar objects in the Oort cloud than objects in the solar system. According to ANI, astronomers have counted shells of debris in the most remote regions of the solar system. The new paper comes after the arrival of Borisov’s snowball, which is traveling 110,000 miles per hour.

The Oort cloud may contain more interstellar objects

In 2019, astronomers discovered Borisov, the first interstellar comet ever discovered by humans. consequences of studying It was published in the Journal of Monthly Notices of the Royal Astronomical Society. Astronomers Amir Siraj and Avi Loeb of the Center for Astrophysics have provided new calculations showing that the Oort cloud may be home to more objects visited than objects from the Solar System.

Amir Siraj, an undergraduate and graduate student in Harvard’s Department of Astronomy and lead author of the study, reports that astronomers did not know how many interstellar objects were in the solar system before the first interstellar comets were discovered. Furthermore, Siraj mentioned in a press conference that according to the formation of the planetary system, “the number of visitors should be less than the permanent residents.” Siraj added that they were trying to find “more visitors”. Astronomers came to the conclusion after observing comet Borisov. In addition, astronomers explain that with all this, interstellar visitors outsmart objects belonging to the solar system.

“Before the discovery of the first interstellar comets, we didn’t know how many interstellar bodies were in our solar system, but theories about the formation of planetary systems suggest that the number of visitors should be fewer than permanent residents,” Siraj said. pers. release.

Siraj noted that the Oort cloud stretches over an area of ​​about 200 billion to 100 trillion miles from the sun. Astronomers add that objects in the Oort cloud do not produce their own light. According to astronomers, these two reasons make it very difficult to see debris outside the solar system. Astrophysicist Matthew Holman, former director of the Center for Astrophysics, Center for Minor Planets, who was not involved in the research, said the finding was interesting because it had implications for objects closer than the Oort cloud.

“These results suggest that the abundance of interstellar objects and the Oort cloud is comparable closer to the Sun than Saturn,” Holman said in a press release.

(input from ANI)

(Image credit: Unsplash/RepresentativeImage)

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