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The James Webb telescope uncovered that strange rings surround a distant star WR 140.



The strange rings or cores surround distant star WR 140. Those concerning shells look like some kind of waves. There is a possibility, that those concentric shells are formed when gravitational waves are hitting material around that star. Those rings can be pressure waves from that star or they can be the result of gravitational waves. WR 140 is a variable that changes its brightness in a certain period. 

The WR 140 is the so-called Wolf-Rayet star. The surface temperature of that star is 70000K which is usual for Wolf-Rayet stars. Some of Wolf-Rayet stars have no hydrogen at all. They are burning pure helium or even heavier elements. 

Or another thing that could form those strange rings can be changed the energy production of that star. Space.com describes WR 140 like this: "WR140, located some 5,600 light-years away from Earth in the constellation Cygnus, is a so-called variable star that periodically dims and brightens. Whether the star's variability has anything to do with the mysterious ripples remains to be seen". (Space.com/Mysterious rings in new James Webb Space Telescope image puzzle astronomers)

The WR 140 is an old star that is gone out from the main sequence. The changes in energy production of that kind of star can cause the pressure waves that travel through the universe. 

WR 140 is the Wolf-Rayet star. Wolf-Rayet stars involve lots of helium, nitrogen, and carbon. 

Their surface temperature is from 20000-210000K. There are two main types of those Wolf-Rayet stars. The type 1 version of those stars is called classic (or Population I) Wolf–Rayet stars are evolved, massive stars that have completely lost their outer hydrogen and are fusing helium or heavier elements in the core. (Wikipedia/Wolf/Rayet stars). The temperature of those stars is extremely high. And that makes them interesting. 


https://www.space.com/james-webb-space-telescope-odd-ripples-image


https://en.wikipedia.org/wiki/WR_140


https://en.wikipedia.org/wiki/Wolf%E2%80%93Rayet_star


Image: https://www.space.com/james-webb-space-telescope-odd-ripples-image


https://astronomyandtechnology.blogspot.com/

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