‘Stunning’ web photos reveal secrets of star birth -2022






The images, released Monday, shed light on an environment similar to that of our solar system when it formed more than 4.5 billion years ago. Observing the Orion Nebula will help astronomers better understand what happened during the first million years of that date. Planetary evolution of the Milky Way galaxy, said an astrophysicist at Western Els University Peters in a press release.

“We were blown away by the incredible images of the Orion Nebula. We started this project in 2017, so we’ve been waiting over five years to get this data,” said Peters.

“These new observations allow us to better understand how massive stars transform the cloud of gas and dust in which they were born,” added Peters.

The cores of stellar nurseries like the Orion Nebula are obscured by large amounts of stardust, making it impossible to study what’s going on inside with instruments like the Hubble Space Telescope, which rely primarily on visible light.

However, Webb detects infrared light from the universe, allowing observers to see these layers of dust, The statement revealed the events taking place deep within the Orion Nebula. The images are the most detailed and clear ever taken of the nebula, located in the constellation Orion about 1,350 light-years from Earth, and the most recent view from the Webb Telescope. which began operations in July.

“Observing the Orion Nebula was challenging because it is so bright for Webb devices with unprecedented sensitivity. But Webb is amazing, as Webb can see faint, distant galaxies as well as Jupiter and Orion, two of the brightest sources in the infrared sky. research scientist Olivier Bernier of the CNRS, the French National Center for Scientific Research, said in the press release.

The new images reveal many structures within the nebula, including Proplyds, a central protostar surrounded by a disk of dust and gas in which planets form.

“We have never been able to see the intricately fine details of how interstellar matter forms in these environments, and learn how planetary systems might form in the presence of this strong radiation. These images reveal the legacy of the interstellar medium on the planets.” said Emily Habart, an associate professor at the Astrophysical Institute for Space Sciences (IAS) in France.

Also evident at the heart of the Orion Nebula is a trapezoidal cluster of young, massive stars that form the cloud of dust and gas with their intense ultraviolet radiation, according to the press release. Understand how this radiation affects the cluster The environment is key to understanding the composition of star systems.

“Massive young stars emit large amounts of ultraviolet radiation directly into the original cloud that still surrounds them, and this changes the physical shape of the cloud as well as its chemical composition. How precise this is and how it affects the formation of stars and planets is not yet known.”

The images will be studied by an international collaboration of more than 100 scientists in 18 countries. Known as PDRs4All.

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