The remote stars may not be exactly a star

NAST's James Webb's notes reveal that Irndel, the most known far star, may not be a star.

Researchers suggest that the object will actually be a group of stars, a group of gravitational stars in the same cloud of gas and dust. If emphasized, this changes our understanding of how stars and groups are formed in the early billions of the universe.

In summary:

• James Webb measurements indicate that erendel may not be a unique star;
• A new study suggests that the object be a distant star group;
• Earendel spectral data is similar to those in football groups;
• The discovery of the object by Hubble in 2022 was possible thanks to the gravitational lens;
• This technique expands the light of distant goals, allowing them to monitor them;
• The micro -future will help confirm whether erendel is a star or group.

In an article published in the scientific magazine Astronomical physical magazineThe Massimo Pascale team, a PhD student at the University of California, Berkeley, USA, analyzed JWST data to investigate the nature of the Earendel, discovered by the 2022 Hubble Telescope.

The results obtained indicate that the Earendel spectral properties are similar to those in football groups in the next universe. These groups are intense stars groups that share a similar origin and age.

“If Earendel is already a group, then this is not expected,” Basquali told the site. Direct scienceHe explained that the results are in line with the expected football groups in the first billion years of the universe.

Earendel was discovered by gravity lens

Earendel is located in Galaxy Arco Do Sol Nascente, 12.9 billion light years of Earth. The star was discovered thanks to the attractive lens of a huge galaxy group between us and the object. This effect, which Albert Einstein provides and inflates light, allows telescopes to detect distant and weak things. Earendel light is estimated at least 4000 times.

The phenomenon of gravitational lens is more powerful in specific areas called “ideal points”. If there is a distant object with one of these points, hundreds or thousands may become brighter. According to Becca, it seems that Earendel specifically in one of these places, which explains how it was possible to monitor this, even nearly 13 billion light years.

Previous analyzes with the JWST camera near the infrared (NIRCAM) camera could be a warmer and bright block star of the sun, and may be accompanied by a cooler accompanying star.

Pascale decided to explore the hypothesis of the stars group after finding that the shine and the observable size can be compatible with the common light of many stars instead of a dual system.

The team used data from the other JWST tool, which is the nearby infrared spectrum (NirSPEC), to study the age and composition of Earendel. Continuous spectral analysis showed criteria consistent with the expected group of stars, indicating that the discovered light can come from multiple stars.

Read more:

For discovery, Earendel can be one star

Brian Wilsh, post PhD researcher at Maryland University and NASA Godard Space Center, which led the discovery of the original Earendel, indicates that current data certainly does not confirm whether it is a group. “In the spectral NirSPEC accuracy, the lens spectrum of the star and a group of stars can be very similar,” explains Walsh. “Therefore, it is important to take into account all available data when trying to classify these very expanded objects.”

Earendel and the new research leader believes that the key to revealing the true nature of its lies in monitoring microscopes, and temporary expansion effects that occur when a smaller object passes in front of a remote object. Micro -glow changes may indicate whether the organism is one star, a bilateral system or a larger group.

“It will be exciting to follow what future JWST programs can do to increase the erendel nature detection,” Pascalie says.