By Will Dunham
WASHINGTON (Reuters) – The James Web telescope for space has noticed large planets in different stages of childhood – one with an atmosphere full of dusty clouds and the other surrounded by a disk of materials – revolving around a young young star in a discovery that explains the complex nature of how the planet’s systems develop.
The giant planets of the gas, both of which are more large than the largest planet in our solar system, were filmed directly by Webb in a planetary system located in the Milky Way galaxy about 310 light -years away from Earth towards the Musca constellation. The optical year is the light distance per year, 5.9 trillion mile (9.5 trillion km).
Astronomers have discovered more than 5900 planets outside our solar system – called external planets – since the 1990s, with less than 2 % of this photography directly such as these. It is rare to find external planets in their early development stages.
The birth of the planet’s system begins with a large cloud of gas and dust – called the molecular cloud – collapsing under its own attractiveness to form a central star. The remaining substances revolve around the star in the so -called protophania disk forms planets.
Webb has noticed this planetary system by Webb very early in its development history. The star, named Yeses-1, is the same as the sun’s mass. The two planets revolve over a long distance from the star, and each of them may need thousands of years to complete one orbit.
While the sun is approximately 4.5 billion years old, this star is approximately 16 million years old, which is newborn. The researchers were surprised when it was found that the WEBB -observed planets were at different stages of development.
The deepest between the two has a 14 -time mass from Jupiter and the star rotates 160 times from the Earth and more than five times as much as our outer planet for our solar system.
The planet surrounds a tablet of small dust, or the condition that one might expect at a very early stage of composition when it is still a key, or perhaps if there is a type collision or the moon is in the formation process. Web monitored water and carbon oxide in an atmosphere.
The outer planet contains a mass greater than six times more than Jupiter and the star rotates at 320 times the Earth’s distance to the sun. Joe is loaded with clouds of silicate, different from gas giants in our solar system. Webb also discovered methane, water, carbon monoxide and carbon dioxide in the atmosphere. It has no tablet of materials around it.
Astronomical physicist Kelan Hotel of the Institute of Telemore, which led the study this week in the magazine “Nature”, said that the puzzling mix is one of the features presented by these two planets in the same system shows that “the complex scene that forms the planet and explains to any extent we do not really know how the systems of the planets, including our study.”
Hosh said: “In theory, the planets should be formed almost at the same time, as the formation of the planet occurs somewhat quickly, within about a million years.”
Hosh added that the real mystery is the location in which the planets were formed, noting that the orbital distance from the host star is greater than expected if it was formed in the protoplani disc.
“Moreover, why does one of the planet still keep the materials around it, and one of the distinctive clouds remains a great issue. Do we expect all the giant planets to form the same way and seem the same if they are formed in the same environment?
In addition to collecting a set of discoveries on the early universe since it became operating in 2022, webb has made a great contribution to the study of external planets with its observations in the lengths of near and medium waves.
Hosh said: “Webb reveals all kinds of physics and chemistry in the atmosphere that occurs in the external planets that we have not known before, and currently challenges every model in the atmosphere we used before WeBB,” Hoch said.
(Will Doneham’s reports, edited by Rosalba Operation) participated
