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Detectaron un disco de gas y polvo que permitiría probar teorías sobre la formación de planetas

Astrónomos de la Universidad de Grenoble, Francia,  detectaron un disco de gas y polvo alrededor de un planeta extrasolar, un descubrimiento considerado como un paso esencial para verificar teorías actuales sobre la formación de planetas y satélites. Se supone que  los planetas se forman en los discos de polvo y gas que rodean a las estrellas jóvenes, y los planetas a su vez pueden estar rodeados por un disco de polvo y gas que alimenta su formación y que además pueden formar lunas. Esta observación comenzó en 2018 al descubrirse  PDS 70b, un planeta en formación orbitando la estrella PDS 70, ubicada a 370 años luz de distancia en la constelación de Centauro, informó la agencia AFP.

First Moon-Forming Disk Around an Exoplanet Spotted by Astronomers Thanks to ALMA

22 July 2021, 08:07 pm The first moon-forming disk around an exoplanet has been spotted and measured by astronauts with the help of a telescope array called ALMA.  Myriam Benisty, a researcher at the University of Grenoble, France, and at the University of Chile who led this research into the moon-forming disk said as quoted in a press release posted by the European Science Observatory (ESO), Our work presents a clear detection of a disc in which satellites could be forming. The research on the exoplanet with the moon-forming disk has been published in The Astrophysical Journal Letters.  The exoplanet with the moon-forming disk is located outside the solar system. Known as the PDS 70c, the exoplanet is located around 400 light-years away from Earth. One light-year is equivalent to 6 trillion miles. 

Astronomers spy first moon-forming disk around an exoplanet

(CNN)  For the first time, astronomers have found a disk around a Jupiter-like planet outside of our solar system  the kind of disk where moons could actively be forming. The disk, known as a circumplanetary disk, was discovered around an exoplanet known as PDS 70c. It s one of two massive planets similar to Jupiter that orbit a star 400 light-years from Earth. An international group of astronomers found the disk while observing the planetary system with ALMA, or the Atacama Large Millimetre/submillimeter Array of telescopes in Chile. The diameter of the disk is large enough that it spans the distance from Earth to the sun and it contains enough mass to form as many as three satellites the size of our moon. The disk is 500 times larger than the massive rings around Saturn.

Astronomie - Première détection d un disque pouvant former une lune autour d une planète

Astronomie - Première détection d un disque pouvant former une lune autour d une planète
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