The James Webb telescope again broke the record for the most distant galaxy observed

The James Webb telescope has probably broken the record of the most distant observed galaxy by observing a mass belonging to about 250 million years after the big bang.

BingMag.com The James Webb telescope again broke the record for the most distant galaxy observed

The James Webb telescope has probably broken the record of the most distant observed galaxy by observing a mass belonging to about 250 million years after the big bang.

In a new study, scientists have used the first data set from the James Webb Space Telescope (JWST) to discover a possible galaxy named CEERS-93316 that formed approximately 250 million years after the Big Bang.

CEERS stands for Cosmic Evolution Early Release Science Survey and is specifically based on imaging by James Webb. The galaxy also set a new redshift record with a z-measure of 16.7. This finding is particularly fascinating as it demonstrates the power of the James Webb, just a few weeks after it sent its first scientific data.

Dr Rebecca Bowler of the Ernest Rutherford Collaboration at the University of Manchester. And one of the authors of the paper said: "The past few weeks have been surreal watching all the records that have long been held by Hubble. For this study, finding a possible galaxy at z=16.7 feels surprising, and was not something we would have expected from the original data. Using the combined observations of ground observatories with the Hubble Space Telescope and the Spitzer Space Telescope, they have measured to be able to measure a redshift of about 10. Callum Donnan is the main author of this study. "Finding such a distant galaxy with the Web is surprising given that this is only the first set of data," he noted. But it is important to note that further observations using spectroscopic instruments are needed to ensure the accuracy of the redshift measurement. That's why we refer to it as a possible galaxy.

The current study, based on imaging data from James Webb's Near Infrared Camera (NIRCam), found that CEERS-93316 cannot A low-mass star or an active galactic nucleus is obvious. Because CEERS-93316 could be only 250 million years old, one of the goals of cosmologists is to understand what happens in galaxies this young after the Big Bang.

Buhler added: "So Since the Big Bang, the universe entered a period known as the Dark Ages, which spans before the stars were born. Observations of this galaxy take us back to when we think the first galaxies were forming. "We found more galaxies in the early universe than computer simulations predicted, so there are clearly many unknowns, including questions about how and when the first stars and galaxies formed."

BingMag.com The James Webb telescope again broke the record for the most distant galaxy observed

Images of the possible galaxy CEERS-93316 in the James Webb data
Credit: Donnan et al

With this valuable finding in just James Webb's first data set, it's interesting to think how much deeper this record-breaking space telescope can see, and whether it can observe the Big Bang itself?

Bowler explained. James Webb can detect galaxies at redshifts greater than 20, less than 200 million years after the Big Bang. Finding these galaxies will probably be very difficult, but the discovery of CERRS 93316 gives us hope that James Webb may achieve it." Danan also added: "The most distant observed phenomenon, the cosmic microwave background (CMB). ) which is the afterglow of the big bang. The CMB light comes from approximately 400,000 years after the Big Bang and has been observed by various instruments over the years, especially the Planck satellite, which, although launched in 2009, can probe the early stages of galaxy formation.

While Donnan and Buller both noted that no further observations of CEERS-93316 are planned, they hope that such an opportunity will arise in the future.

The redshift is part of something. This is known as the Doppler effect and is used by astronomers to measure distances in the universe.

A common example of the Doppler effect is the change in pitch of sound waves that occurs when a loud object vibrates. An ambulance, for example, moving towards you and then away from you, feels good. When the object is moving toward you, the change in wavelength of the sound waves is known as blueshift, while when it is moving away from you, it is called redshift.

The new study sets a new record for the transition. A red glow means that scientists have measured the most distant object in the universe to date.

Cover photo: A graphic representation of a primordial galaxy
Credit: Midjourney AI

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