Galaxies get up much more violently than we thought

Violent black holes unexpectedly caused the mystery of missing cosmic matter.

Most of the universe is filled with mysterious dark matter, but even ordinary matter perplexed cosmologists. Part of this normal affair – composed of particles called bars – seemed to have been missing for a long time. The researchers recently worked where he was hiding, and now Boryana Hadzhiyska at the University of California in Berkeley and his colleagues learned how black holes can have shaped his distribution and hid him.

“Material is made up of dark matter, which is the predominant component, and the Baryonic matter or, essentially, gas. For this gas, only about a few percent are in the form of stars, and the rest is in the form of diffuse gas, “she says. Diffuse gas is low and difficult to observe, but its team has combined several observations to find it.

A set of data they used shows how Baryon Matter launches a shadow on the remaining radiation of the Big Bang, the cosmic microwave background. Another key piece of the puzzle came from the analysis of the way in which the persistence is distorted by the gravitational fields of massive objects. By combining them, the team determined where the dark matter and the baronic material stick together and where they diverge, both in the galaxies and between them.

Hadzhiyska says it was exciting to note that the baronic material is much more widespread than dark matter, which indicates black holes supermassive in the centers of the galaxies must eject it in an unexpected manner.

“Understand exactly how this process occurs and how strong it is, so the quantity of the question can really be ejected from a given galaxy [so far] remained extremely uncertain, ”explains Colin Hill at Columbia University in New York. Researchers can use computer simulations to model galaxies and their evolution, but to obtain this detail correctly, analyzes like this are crucial, he says. “He gives us a complementary investigation to understand the role of supermassive black holes in the Gas in motion around galaxies,” said Alex Kro schoolwski at the University of the University of Waterloo in Canada.

Hadzhiyska says that such analyzes could also help solve the current disputes on the procrastinium of the universe – how ordinary matter and invisible scaffolding of the dark matter of the universe together through space thanks to gravity. His team now seeks to add even more types of observations to their analysis – for example the way in which short explosions of cosmic radio waves go through the diffuse baron gas. An even better “baron census” with fewer uncertainties is still necessary, explains Michael Shull at the University of Colorado Boulder.

Could this discover a certain oddity in the distribution of matter through the universe that would make theorists and model makers to the drawing board? “We hope something breaks. I hope that dark matter is the thing where we are starting to see the gaps [from the standard model of cosmology]Said Hadzhiyska.

Mysteries of the universe: Cheshire, England

Spend a weekend with some of the most brilliant spirits in science, while you explore the mysteries of the universe in an exciting program that includes an excursion to see the emblematic Lovell telescope.