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The James Webb telescope surprised scientists by discovering a supernova

BingMag.com The <b>James</b> <b>Webb</b> <b>telescope</b> <b>surprised</b> <b>scientists</b> by <b>discovering</b> a supernova

The James Webb Space telescope surprised scientists with the unexpected detection of its first supernova, the explosion of a dying star.

Only A few days after the start of the scientific operation, the NIRCam camera of the James Webb Space telescope observed an unexpected bright object in a galaxy called SDSS.J141930.11+5251593, 3-4 billion light-years away from Earth.

This bright object dimmed over a 5-day period, suggesting that it could have been a supernova caught by sheer luck only shortly after the star exploded. Astronomers then compared the new observations with archived Hubble Space telescope data to confirm the source of the new light.

  • What is the significance of the James Webb Space telescope photos?

This discovery is especially surprising because the James Webb Space telescope was not designed to look for supernovae. Such a task is usually done by wide-sky survey telescopes, which scan large parts of the sky in short time intervals. In contrast, the Webb telescope looks at only a very small region of the universe in great detail. For example, the deep field image released last week covered an area only the size of a grain of sand.

Given that the discovery was made in the first week of the web science operation, astronomers think that The depth of web images may compensate for the smallness of the observation area. Each deep field image contains hundreds of galaxies, which means hundreds of opportunities to detect a supernova. According to the scientists, this discovery could potentially open up a completely new field of research.

According to Inverse, the early detection of a supernova indicates that the telescope may be able to see such objects on a regular basis. That would be exciting, especially because the Web is expected to see the first galaxies that formed in the first hundreds of millions of years after the Big Bang.

Now combine this ancient view with the unexpected detection of a supernova, and You discover that the web may be able to record the explosion of one of the first generation stars that lit up the universe after the early dark ages. Astronomers think that these early stars had a much simpler chemical composition than stars born in later periods. "We think that, unlike today's stars, stars in the first few million years were mostly, almost entirely, hydrogen and helium," he added. Our sun must be massive and certainly live some sort of live-fast, die-young lifestyle. "Seeing these kinds of explosions is something we haven't really done yet."

The discovered supernova represents the death of a much younger star, only 3-4 billion years old, but it's a promising start for the telescope. is built to do something different.

Supernovae are difficult to detect because the explosion itself lasts only a fraction of a second, and the bright bubble of dust and gas that these stellar deaths create only after a few seconds. The day fades away. So a telescope must be looking at the sky at the right time, in the right direction, to catch it.

Now astronomers have to hope that the first Web supernova wasn't just a fluke, so that they can spot other examples. .

  • Download amazing images captured by James Webb as wallpaper

Cover photo: supernova Discovered as a bright spot to the right of the larger bright spot to the left.
Credit: Space telescope Science Institute


Source: Space

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