NASA’s James Webb, the world’s most powerful space telescope, continues to capture incredible images as it takes an in-depth look at nearby galaxies IC 5332, Messier 74, NGC 1365 and NGC 7496.
According to Sci-News, the thing scientists are focusing on this time is polycyclic aromatic hydrocarbons (PAHs)which can reveal many physical properties of the interstellar medium.
NGC 7496, a galaxy 24 million light years away
NGC 7496, a galaxy 24 million light years away – (Photo: NASA/ESA/CSA).
PAH are very small “dust particles” and it is their small size that makes them so valuable to astronomy. When PAHs absorb a photon from a star, they vibrate and create emission spots observable by suitable telescopes.
On Earth, PAHs can form from fire smoke and asphalt. It is a chemical that is harmful to humans when contaminated by food and objects. However, in the astronomical environment, they are closely related to the star formation process and the properties of stars. “Nursery of stars”.
It’s like a clue that Earthlings can pick up on if there’s a telescope capable of observing in mid-infrared wavelengths, something NASA’s retired Spitzer Telescope once did.
With James Webb, the images became clearer than ever and helped the research team led by Dr Karin Sandstrom from the University of California, San Diego (USA) to map the interiors of these four distant galaxies , revealing many unique details such as gas filaments. , energy bubbles blown by newly formed stars, stars with extremely powerful radiation fields and even “Death of the Stars” Is called supernova.
All of them reveal the core of the star formation process of a galaxy, which can be regarded as the beginning of many worlds: billions of years ago, the Sun was born like this, and then gradually gave birth to planets, including Earth.
The results of this new observation will be presented in detail in a series of studies that will soon be published in Astrophysical Journal Letters.
James Webb is today the most powerful space telescope in the world, built and operated by NASA, with the support of two European and Canadian space agencies, the ESA and the CSA.
Article source: NLD
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NASA’s James Webb, the world’s most powerful space telescope, continues to capture incredible images peering deep into neighboring galaxies IC 5332,…