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James Webb's first image of an exoplanet

James Webb’s first image of an exoplanet

© NASA/ESA/CSA, A Carter (UCSC), ERS 1386 Team and A Pagan (STScI)

who – which James Webb Telescope (JWST) Celebrated another show. Researchers succeeded in capturing a picture of the planet with different filters hip 65426b close. It is the first direct image that Webb has taken of an exoplanet.

Web Tools Nircam (near infrared) and Mary (Mid-infrared) Several images were taken with different filters for different wavelengths. 4 Including NASA shown in the published photo. They depend on the wavelength Violet, blue and orange And the red Colored:

dazzling star

For this, the so-called Coronagraphs The disturbing light of the central star faded away. If we shield the sun with our hands on the ground so that we can see something without going blind, we use the same effect.

However, this is not enough for such an observation. as such Aryn Carterone of the study authors, on Twitter Clearer, a star of similar brightness is also observed, around which no planet orbits. In this way, the starlight can be calculated from the recordings.

At the far left you can see the image in the light of the central star. To the right you can see 3 recordings by which the light was calculated

Difficult “live imaging” of exoplanets

Although scientists are always discovering new exoplanets, photographing them directly is very difficult. Usually the planets revolve around you central star It is noticeably brighter and larger than itself, so if the planets are still relatively small and very large and as far from their star as possible, infrared images can be taken of them.

so can 2017 The 385 light years HIP 65426 b remote planet with SPHERE . Tool From Southern European Observatory (ESO) in Chile. The “Live Shooting“The method used in which the planet is directly imaged is by looking for the polarized light that the planet reflects. Since then 100 times Farther from its star from Earth than from the Sun, this photo was taken:

Amazing exoplanet

So far it is only known that there is a planet outside the solar system 14 million years between age and 1000 and 1400 degrees Celsius hot. between him and 6 and 12 times The Jupiter mass It spins at an amazing speed Share the ESO . team at that time with.

This discovery poses a great mystery to researchers. There is usually one around these young stars debris disc. It was formed from it. This is missing from HIP 65426 b, which is why it was not entirely clear how the planet formed in the first place.

Safir managed to capture this photo of HIP 65426 b in 2017

Riddles about the history of origin

It must be for the planet too dusty atmosphere with thick clouds to have. One suggestion is that it formed in a disk of dust and gas and moved away from its host star by the influence of other planets.

Another theory is that it was originally part of a file Binary system I was. The current central star could then absorb so much material so quickly that nothing was left for the second star and evolved into a planet.

New Monitoring Possibilities with Web

But what does observation with JWST bring to researchers? Carter said the data collected shows that the new telescope is capable of observing planets less massive than Jupiter directly. This wasn’t possible before and that’s why most of the super Jupiters have been found. Now the telescope can also see planets the size of one Uranus or Neptune record, tape. accompanying paper (PDF at arxiv.org) but has not yet been independently verified.

The researchers are currently jotting the news in HIP note 65426 b. At the same time, by the way, the exoplanet will soon be called a new name. is part of NameExoWorlds Program 2022. Here, name suggestions for a select group of exoplanets can be made annually.

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