Skip to main content

The white dwarf with a metal scar is one thing that has never been seen before.



"This artist’s impression shows the magnetic white dwarf WD 0816-310, where astronomers have found a scar imprinted on its surface as a result of having ingested planetary debris. When objects like planets or asteroids approach the white dwarf they get disrupted, forming a debris disc around the dead star. Some of this material can be devoured by the dwarf, leaving traces of certain chemical elements on its surface". (ScitechDaily, Cannibal Star Discovered With Metal Scar – “Nothing Like This Has Been Seen Before”)

"Using ESO’s Very Large Telescope, astronomers found that the signature of these chemical elements changed periodically as the star rotated, as did the magnetic field. This indicates that the magnetic fields funneled these elements onto the star, concentrating them at the magnetic poles and forming the scar seen here. Credit: ESO/L. Calçada" (ScitechDaily, Cannibal Star Discovered With Metal Scar – “Nothing Like This Has Been Seen Before”)

The white dwarf WD 0816-310 is a magnetic white dwarf. That magnetic field can drive metals to its poles. But it is also possible that this star's metal scar formed in the case. That the impacting object was very small or the metal mass was so low, that metal cannot cover the entire white dwarf. 

White dwarfs are star remnants. Those stars used their fuel and then detonated in a nova eruption. The thing that makes white dwarfs interesting is that our sun's fate will be white dwarfs. Most of the white dwarfs are carbon stars. They are very dense objects. And that means they have quite strong gravity fields. 

Sometimes they pull some other object into the impact course. And if there is some kind of metal object, that metal will usually spread on that star's entire shell. The situation on white dwarf WD 0816-310 is that there is only metal at the pole of that dwarf star. 

That could mean that there was so little metal mass on the object that formed that scar on the white dwarf's pole. In that case, there is not enough metal that can cover the entire white dwarf. And that thing causes a very interesting hypothesis about the origin of that scar. Maybe a large metal asteroid impacted the white dwarf. But nobody knows the shape of that object. 

The small mass of metal can cause the theory that maybe the humanoid spacecraft formed that strange scar. The fact is that a small metal mass causes a situation where there is not enough metal to cover the entire white dwarf. 

Another interesting thing is that metal did not vaporize and fly to space or turn into some other element when that object impacted with white dwarf  WD 0816-310 causing a very high energy level. And that thing can cause a situation in which atoms melt together. Or they formed a fission that ripped the atoms into pieces. It is possible. That metal scar is formed from some very rare radioactive material. Or maybe some still unknown isotope or element formed that mysterious scar. 

https://scitechdaily.com/cannibal-star-discovered-with-metal-scar-nothing-like-this-has-been-seen-before/

Comments

Post a Comment

Popular posts from this blog

Researchers think that the multiverse is not fiction anymore.

Multiverse means that our universe is one of many universes. The reason why researchers and scientists believe that this is true is that logical. About 50 years ago people didn't know that there were other solar systems. Exoplanets were only theories in the 80's.  About 400 years ago people thought that our Sun was the only star in the universe. Edvin Hubble proved that our galaxy, Milky Way is one of many galaxies. Then researchers found that galaxies form groups, and supergroups. That means that today we think that the universe, where we live is the ultimate supergroup of galactic supergroups. And logically thinking there should be other universes. We believe that the universe began its existence in an event or series of events called the Big Bang. That event did not begin, because the energy that formed material should come from somewhere. The Big Bang was not one "bang" or explosion. It was a series of events where material took form. Or the energy level that it h...
Post a Comment
Read more

Spinning cylinders prove a 50-year-old physics problem.

"Scientists at the University of Southampton have experimentally proven the Zel’dovich effect by amplifying electromagnetic waves using a spinning metal cylinder, confirming a theoretical prediction from the 1970s and opening new avenues in technology and quantum physics. Credit: SciTechDaily.com" (ScitechDaily, 50-Year-Old Physics Theory Proven for the First Time With Electromagnetic Waves) "“Colleagues and I successfully tested this theory in sound waves a few years ago, but until this most recent experiment, it hadn’t been proven with electromagnetic waves. Using relatively simple equipment – a resonant circuit interacting with a spinning metal cylinder – and by creating the specific conditions required, we have now been able to do this.” (ScitechDaily, 50-Year-Old Physics Theory Proven for the First Time With Electromagnetic Waves) Researchers amplified electromagnetic waves using spinning metal cylinders. That experiment proved the Sunyaev–Zeldovich, SZ effect, is v...
Post a Comment
Read more

What makes it hard to create a room-temperature superconductor?

"The discovery of wave-like Cooper pairs in Kagome metals introduces a new era in superconductivity research, offering potential for innovative quantum devices and superconducting electronics, driven by theoretical predictions and recent experimental validations. Credit: SciTechDaily.com" (ScitechDaily, Kagome Metals Unlocked: A New Dimension of Superconductivity) "Superconductivity is a set of physical properties observed in superconductors: materials where electrical resistance vanishes and magnetic fields are expelled from the material. Unlike an ordinary metallic conductor, whose resistance decreases gradually as its temperature is lowered, even down to near absolute zero, a superconductor has a characteristic critical temperature below which the resistance drops abruptly to zero. An electric current through a loop of superconducting wire can persist indefinitely with no power source" (Wikipedia, Superconductivity) Theoretically, a superconducting electric circu...
Post a Comment
Read more