Monday, September 27

agujero negro

agujero negro, Espacio, Estrella, explosión, formación, Noticias, supernova

Astronomers discover a new type of supernova | Digital Trends Spanish

A group of astronomers have found evidence that a black hole or a star of neurons spiraled into the nucleus of another and caused it to explode as a supernova, phenomena that had never before been identified. For this discovery, the team in charge used data from the VLASS (Very Large Array Sky Survey) sky observation project, which has as one of its objectives to find transient objects. According to astronomers at Caltech, it is normal for massive stars to explode as a supernova when their nuclear fuel runs out, but in this case, a black hole or neutron star caused the companion star to go supernova before weather. This discovery marks the first time that a supernova caused by a merger has been confirmed. Bill Saxton."Theorists had predicted that this could happen, but this is the first...
agujero negro, astrónomos, Espacio, estrellas, fantasmas danzantes, Noticias

What are dancing ghosts discovered in space? | Digital Trends Spanish

Astronomers from the University of Western Sydney and the Australian Science Agency (CSIRO) have detected strange clouds of electrons surrounding galaxies in the deep cosmos. These clouds would be about a billion light-years away and had never been seen before. According to scientists, they would resemble two dancing ghosts. These dancing ghosts were discovered as part of the first deep-sky search using CSIRO's ASKAP (Australian Square Kilometer Array Pathfinder) radio telescope. “We are getting used to surprises as we scan the skies as part of Project EMU and probe deeper into the Universe than any telescope before it. When you go boldly where no telescope has gone before, you are likely to make new discoveries, "the researchers explain in a statement. Western Sydney University.“When...
agujero negro, Espacio, Noticias, onda gravitacional, Stephen Hawking

Stephen Hawking’s theorem on black holes proved | Digital Trends Spanish

Stephen Hawking's Black Hole Area Theorem has finally been confirmed. By analyzing a gravitational wave, scientists have found that the horizon of a black hole does not shrink. This theorem was proposed by Hawking in 1971 and only confirmed 50 years later. To do this, researchers from the Massachusetts Institute of Technology observed the first gravitational wave that was detected at the LIGO observatory; This wave was generated after the merger of two black holes, which gave way to a new one. As proposed by Stephen Hawking, the area of ​​the horizon of the new black hole should not be less than that of the original two. And this theorem had been proven mathematically but never physically observed, until now. The gravitational wave in question, called GW150914, was discovered in 201...
agujero negro, Espacio, estrella de neutrones, Noticias

This is how a black hole and a neutron star merge | Digital Trends Spanish

One of those situations that are documented in one in a million occurred to the United States-based Laser Interferometer Gravitational Wave Observatory (LIGO) and the Virgo gravitational wave observatory, in Italy, as both revealed the merger that was taking place. provoked in the universe between a black hole and one neutron star. As published in The Astrophysical Journal Letters It would be a true space Pac-Man and it would be very useful for the recognition of the origin of matter in the Universe. “These collisions have shaken the Universe to its core and we have detected the waves that they have sent through the cosmos. Each collision is not just the meeting of two massive and dense objects. It's really like Pac-Man, with a black hole swallowing its companion neutron star. Northwe...
agujero negro, astronomía, astrónomos, Espacio, Estados Unidos, m87, Nature, Noticias, telescopio

The film of the first black hole captured in photos | Digital Trends Spanish

A year ago, the world of science and astronomy was shocked with the publication of the first image of a black hole, known as M87. Now, researchers have revealed a short sequence of frames (almost like a small film) of images collected by the Event Horizon Telescope of the object before the historic first photograph was released. It has been four years of work that provides astronomers with valuable information about the behavior of black holes, as well as their gravity, according to the magazine Nature. One of the main discoveries is that the brightness of the black hole flickers over time, this is because M87 crushes and consumes nearby trapped matter due to its immense pulling gravity. In the wake of the images, scientists talk about a "turbulent evolution" by the bla...
agujero negro, astronomía, Espacio, Noticias

Astronomers capture the largest explosion since the Big Bang | Digital Trends Spanish

As the "largest explosion observed by humanity since the Big Bang" specialists described an astronomical event that took place on May 21, 2019. The phenomenon responded to a violent collision between two black holes that created a new one of a size never seen before. This was explained to the agency Associated Press physicist Alan Weinstein of the California Institute of Technology (Caltech). Until now, astronomers have only observed black holes of two sizes: stellar ones, which form when a star collapses and are the size of small cities, and supermassive ones, which are millions or billions bigger than the Sun, so around them which complete galaxies revolve. However, the one that originated after the aforementioned crash seems not to respond to such patterns. "By the ...