When James Webba Space TelescopeIt has already been noted that one of her missions would Follow the exoplanets more carefully. In principle, he did not seek to find new exoplanets, but to take photographs and data representing interests from those that have already been discovered earlier. Nevertheless, how otherwise with this wonderful work of spatial engineering surpassed all these expectations and took another step, photographing New exoplanet.
Did it thanks CoronographA tool that allows you to photograph exoplanets when provocative Eclipse in his star. This is very useful, because usually these planets cannot be photographed precisely because their brightness is something compared to the star that they rotate. If anyone tried to photograph the Earth from the place, far from the solar system, our sun would prevent you from seizing it correctly. This is precisely the problem with exoplanets.
That is why the coronograph is so useful. Calling an eclipse in the star to which the orbit of the exoplanet, it stops masking its brightness, so it is much easier to photograph it. Thanks to this, we were able to see for the first time TWA 7B.
How is a new exoplanet discovered?
Exasplanes are planets that are outside the solar system. That is, they have their own star around which you can turn around, They do not do it around the sun. They are much further than any of our neighboring planets, so the discovery of a new exoplanet is quite difficult.
There are many methods to do this; But, no doubt, one of the most common is transitThe field of astronomers pay attention to the star in which they suspect that There may be a system of the planet. If its brightness is periodically interrupted, it is understood that from time to time there is an object that is located between the star and the observed telescope, preventing the arrival of all its brightness. Thus, you can know that There is an exoplanet that turns around the starBut you can also calculate interesting data, such as your period or size. You can even set requests for his composition.
The problem is that this cannot be noticed. We do not see the planet itself, but how she interrupts the brightness of her star. This leaves many unknown people who, fortunately, for many exoplanets they have already been resolved with the help of James Webb.
James Webb hardly knows restrictions
Despite the observation gifts of the James Webb space telescope, he still cannot photograph or discover any exoplanet.
In this case, scientists focused on observation purposes, which were considered more promising. These are systems Several million years ancient times that can be seen at the pole, which allows you to observe the discs “from above”. The planets that were formed on these disks, which serve as a cultural broth to form exoplanets, are still hot. This makes them brighter and easily observe them than Other old exoplanets.
Low mass planets in principle It is easier to detect in the thermal range of the average infraredIn which James Webb is an expert. We already have a common goal, but we had to choose good candidates. Among the albums visible from the front, two attracted the attention of researchers. In previous observations, they found concentric structures in the form of a ring. Scientists have still suspected that these structures arose as a result Gravitational interaction between unidentified planets.
One of the two systems called TWA 7 has Three different ringsOne of them is especially narrow and surrounded by two empty areas. The image obtained by James Webb discovered parameters that indicated that it was a new exoplanet.
Small, but it can still be more
New exoplanet, baptized as TWA 7B, 10 times easier than others Of those who received images. Its mass is approximatelyThe field, that is, 30 % of the mass of Jupiter, the most massive planet in the solar system.
James Webb was able to capture radiation from rather small exoplanets. But I could have done even better. These scientists believe that the planet of mass equivalent can only be found for 10 % Jupiter. Maybe this is the following great news about James Webbe. Who knows? Until this happens, this conclusion is also a milestone worthy of celebration.
Source: Hiper Textual
