If you follow the news about the physics of the Universe, you must have come across the term "the power of an absolute black body" at least once. In 2013, a group of scientists announced the discovery of the existence of an unusual force that could potentially be more powerful than gravity. Researchers from Cear State University of Brazil and the Federal University of Brazil have now shared new details about this strange phenomenon.
The term "absolute black body" was first coined by physicist Gustav Kirchhoff in 1862. Absolute black bodies are a class of objects that, at any temperature, absorb all electromagnetic radiation incident on them in all ranges, but at the same time they can emit their own electromagnetic radiation of any frequency. Despite the name, absolute black bodies have color. Neutron stars are one example.
It is believed that absolute black bodies are capable of releasing a special type of thermal radiation, the so-called "blackbody radiation", which can simultaneously attract and repel nearby objects, affecting the internal energy of the same atoms and other particles. It is customary to call this effect "the power of the absolute black body." Scientists are primarily interested in how objects belonging to the class of absolute black bodies and not always having high mass and temperature indicators are able to create radiation, whose impact force can be stronger than even the force of gravity. The interaction of the radiation of an absolute body (repulsion) and the force of an absolute black body (attraction) often becomes an object of study in the sphere of quantum optics.
In a new study by Brazilian scientists, the results of which were published in the scientific journal Europhysics Letters, experts are asking how exotic astronomical bodies (belonging to the class of absolute black bodies), as well as the deformation of the space around them, can affect the strength of an absolute black body. In their work, scientists calculated the topology, or deformation of the space surrounding both spherical and cylindrical absolute black bodies, and found out how the impacting radiation force of each of them changes. Researchers have found that the curvature of space around spherical objects enhances the force of gravity. At the same time, such changes will not be observed in absolute black bodies of a cylindrical shape.
What does this have to do with the principles of interaction of cosmic bodies? This effect has not yet been directly determined either in laboratory conditions, or even near objects with the mass of the Sun, however, scientists are confident that the situation will be completely different when it comes to supermassive absolute black bodies.
“We think that the force of absolute black bodies, present in the conditions of deformation of space around objects that can be classified as absolutely black bodies and possessing ultra-high density, is capable of exerting a more significant effect on surrounding objects than the gravitational attraction of objects inside non-deforming space. For example, the same highly charged particles that form the accretion disks of black holes,”says lead researcher Celio Muniz.
According to scientists, understanding the strength of the influence of absolute black bodies and their radiation will help us develop more accurate models of the formation of planets and stars. And in the future, and discover a special force, the so-called Hawking radiation, according to which black holes are able to emit elementary particles.
“This work allows us to consider the discovery made in 2013 in a broader context,” concludes Muniz.
Promotional video:
NIKOLAY KHIZHNYAK
