![]() In any case, I’m just a bit sceptical about this report, and will be until we get some hold on exactly what dark matter is. Just because something hits the event horizon as one thing, doesn’t mean it isn’t affected so much, that it is pulled apart into individual pieces. The dark matter could break down into nothing and create radiation when being consumed by the black hole… which means it wouldn’t gain all the matter expected. There are too many questions about black holes, and also dark matter…. This would explain why it doesn’t consume dense dark matter quickly. Perhaps… a black hole can only consume so much in a given time frame. To say a black hole would grow to a rediculous size if it consumed all of the dark matter is a bit rediculous, since there is no way it would reach out so far as to claim all of it. The consistency of dark matter probably isn’t dependent upon the black holes in the center of a galaxy, but rather all the matter near the center of a galaxy, which for many galaxies would be consistent. ![]() Which itself is strange… since I’m not aware of any black hole which reaches out a cubic lightyear to pull in material. They aren’t saying black holes don’t consume dark matter, they are saying they don’t consume as much of it, if there is a large concentration within 1 cubic lightyear of it. (It would require new field physics ( dark spinors, I think they are called) to explain this possibility.) There is also the suggestion that this dark energy interaction might have something to do with the manifestation dark matter too. (This may explain the issue with the missing solar neutrinos) Studies suggest this may have some importance as the universe evolves, but it may also provide some issues when interactions are near dense astronomical objects like black holes. As the magnitudes of the masses of neutrinos and the vacuum energy density that likely creates the dark matter are similar, implies they may interact. It is all really heavy stuff, and I don’t quite 100% grasp the importance of this, but it explains what seem to be mass variances in neutrinos or odd observed energy / flux changes in neutrinos from different gravitational sources. paper Cosmology with massive neutrinos coupled to dark energy” (2005) Such ideas have been discussed in the literature, like in the Brookfield, et.al. Not only would this have consequences for cosmology, but it would also have problems with interactions with large and strong gravitational sources. I don’t like to say it, but there is a possibility that the idea of inactions between neutrinos, dark matter and dark energy or where dark matter is coupled with dark energy. By comparing their observations to what current models of the evolution of the Universe predict, Hernandez and Lee conclude that it is probably necessary to change some of the assumptions that underpin these models – dark matter may not behave in the way scientists thought it did. ![]() Their work therefore suggests that the density of dark matter in the centers of galaxies tends to be a constant value. ![]() “Over the billions of years since galaxies formed, such runaway absorption of dark matter in black holes would have altered the population of galaxies away from what we actually observe,” said Hernandez If this concentration were larger than a critical density of 7 Suns of matter spread over each cubic light year of space, the black hole mass would increase so rapidly, hence engulfing such large amounts of dark matter, that soon the entire galaxy would be altered beyond recognition. The researchers modeled the way in which the dark matter is absorbed by black holes and found that the rate at which this happens is very sensitive to the amount of dark matter found in the black holes’ vicinity. These black holes have anything between millions and billions of times the mass of the Sun and draw in material at a high rate. William Lee from the National Autonomous University of Mexico (UNAM) calculated the way in which the black holes found at the center of galaxies absorb dark matter. In their efforts to understand galaxy formation and evolution, astronomers have spent a good deal of time attempting to simulate the build up of dark matter in these objects.ĭr. In the early Universe clumps of dark matter are thought to have attracted gas, which then coalesced into stars that eventually assembled the galaxies we see today. Somehow dark matter resists ‘assimilation’ into a black hole.Ībout 23% of the Universe is made up of mysterious dark matter, invisible material only detected through its gravitational influence on its surroundings. But astronomers have found that the dark matter around black holes might be a different story. There’s the common notion that black holes suck in everything in the nearby vicinity by exerting a strong gravitational influence on the matter, energy, and space surrounding them.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |