Cordoba scientists highlight value of black hole photo

The historic scientific discovery about the black hole that was recorded last Wednesday still has repercussions on the university community.

"The black hole, a strongly metaphorical expression that has made sense in the general theory of relativity, is what is lacking in this picture, and that is the horizon of events, the frontier of no return through which no light does not escape, becomes visible in contrast with the extremely hot gas that surrounds it and falls to this body of unimaginable density "expressed Guillermo Goldes, PhD in astronomy and former director of specialization in public science communication at the National University of Córdoba.

He also mentioned that it was "an area in which the material is ultra compact, that is to say where there is a huge amount of concentrated material in a very small volume.Therefore, the force of gravity that develops is extremely intense.The more the material is compact, the more it exerts gravity.So, but so much gravitational force, that even the light can escape Therefore, a black hole can not be seen directly: it emits no light, and we go back to the beginning: it can only be detected by contrast with a shining cloud of gas that falls on it, then disappears from the map. "

As Carlos Kozameh, black hole specialist of the Famaf, stressed that the importance of the image "lies in the fact that this small black disk contains an object of 4 billion solar mbades." In other words, it is impossible that it is a star common. "

AT Luis LehnerAs a researcher from Cordoba who took part in the discovery, one must then "better understand the black holes and try to see the limits of the theory of gravity of Albert Einstein". In this sense, he pointed out that if differences were found with Einstein's theory, a new theory could be developed to supplant it.

Columns of the author

Editor