Latest news with #FulyaKıroğlu
Yahoo
14-02-2025
- Entertainment
- Yahoo
Black holes vibe together in a cosmic love story for Valentine's Day written in the stars
When you buy through links on our articles, Future and its syndication partners may earn a commission. "Roses are red. Violets are blue. Your event horizon means I can't see you!" As that ugly verse shows, black holes aren't exactly conducive to romantic imagery on Valentine's Day. However, a new simulation revealed just in time for Feb. 14 shows how dancing black holes can "vibe" with one another, forming a cosmic love story that is literally written in the stars. More precisely, the team behind the simulation discovered that binary black hole pairs formed in dense star clusters first align their spins before coming together and discovery could explain mysterious signatures seen in gravitational wave signals detected by the Laser Interferometer, Gravitational-Wave Observatory (LIGO), and its co-detector Virgo. This research runs contrary to previous theories that suggested before they meet and merge, black holes each have their own spins that are random and chaotic. "This discovery challenges the common belief that black holes formed in star clusters always have randomly distributed spins," team leader and Northwestern University researcher Fulya Kıroğl said in a statement. This team, led by Northwestern University researcher Fulya Kıroğlu, found that as black holes are drawn together across a cosmic dance floor, they encounter massive stars. The immense gravity of the black holes generates tidal forces squashing and stretching these stars in a process called "spaghettification." The black holes then slurp down these noodles of stellar pasta in a scene that may summon images of the famous spaghetti-eating scene in "Lady and the Tramp."But this is more than just a romantic cosmic meal. The mass gathered by the black holes increases their gravitational influence. This realigns the spin of the black holes, ringing them into sync. "When a massive star is torn apart by a binary black hole, it creates two separate streams of debris, each spiraling around one of the black holes," Kıroğl said. "Initially, the direction of these spinning debris clouds is random. However, as the black holes get closer, powerful tidal forces begin to realign these clouds, gradually influencing the spin direction of the black holes themselves."If this wasn't already faux-romantic enough, the above simulation shows that as the black holes draw together, streams of material from their stellar meals wrap around them, forming an iconic Valentine's Day heart. Related Stories: — 'Daredevil' white dwarf star could be closest-known object to a weird black hole — Black holes can squash star formation, James Webb Space Telescope finds — Supermassive black holes bent the laws of physics to grow to monstrous sizes "Over time, this process leads to black hole mergers with a slight but consistent alignment of their spins — something that had been seen in gravitational wave signals from merging binary black holes detected by LIGO/Virgo but had not been fully understood until now," Kıroğl continued. The team's research has been accepted for publication by The Astrophysical Journal Letters.
Yahoo
14-02-2025
- Science
- Yahoo
Black holes spin in captivating embrace in stunning new simulation imagery
Binary black holes, systems consisting of two black holes in close orbit around each other, synchronize their spins before they merge together, according to new research. The moment creates a beautiful sight in simulations of how space works. In stellar clusters - groups of stars that can contain as few as a dozen to as many as millions - binary black holes can collide with massive stars. This collision can cause an explosion, disrupting or even destroying the star. Black holes are astronomical objects with a gravitational pull so strong that not even light can escape them. They form when the core of a massive star collapses in on itself. While it was commonly believed that the binary black holes formed in star clusters always have had random spins, scientists say that stellar collisions cause them to align their spins. 'When a massive star is torn apart by a binary black hole, it creates two separate streams of debris, each spiraling around one of the black holes,' explained Northwestern University's Fulya Kıroğlu. Kıroğlu a graduate student, led the research that has been accepted for publication in The Astrophysical Journal Letters. 'Initially, the direction of these spinning debris clouds is random. However, as the black holes get closer, powerful tidal forces begin to realign these clouds, gradually influencing the spin direction of the black holes themselves,' she explained. Over time, Kıroğlu said that the process leads to black hole mergers with a 'slight but consistent alignment of their spins.' That's something that had been seen in invisible ripples emanating from merging binary black holes detected by NASA's LIGO/Virgo mission, but had not been fully understood until now. New simulations show how the collisions influence the spins of black holes, ripping up the stars before eating the stellar debris and becoming more massive. The additional mass increases their gravitational pull. ultimately realigning their spins in the same direction. Their spin looks like a 'googly-eyed heart.' 'This discovery challenges the common belief that black holes formed in star clusters always have randomly distributed spins,' said Kıroğlu.
The Independent
14-02-2025
- Science
- The Independent
Black holes spin in captivating embrace in stunning new simulation imagery
Binary black holes, systems consisting of two black holes in close orbit around each other, synchronize their spins before they merge together, according to new research. The moment creates a beautiful sight in simulations of how space works. In stellar clusters - groups of stars that can contain as few as a dozen to as many as millions - binary black holes can collide with massive stars. This collision can cause an explosion, disrupting or even destroying the star. Black holes are astronomical objects with a gravitational pull so strong that not even light can escape them. They form when the core of a massive star collapses in on itself. While it was commonly believed that the binary black holes formed in star clusters always have had random spins, scientists say that stellar collisions cause them to align their spins. 'When a massive star is torn apart by a binary black hole, it creates two separate streams of debris, each spiraling around one of the black holes,' explained Northwestern University's Fulya Kıroğlu. Kıroğlu a graduate student, led the research that has been accepted for publication in The Astrophysical Journal Letters. 'Initially, the direction of these spinning debris clouds is random. However, as the black holes get closer, powerful tidal forces begin to realign these clouds, gradually influencing the spin direction of the black holes themselves,' she explained. Over time, Kıroğlu said that the process leads to black hole mergers with a 'slight but consistent alignment of their spins.' That's something that had been seen in invisible ripples emanating from merging binary black holes detected by NASA's LIGO/Virgo mission, but had not been fully understood until now. New simulations show how the collisions influence the spins of black holes, ripping up the stars before eating the stellar debris and becoming more massive. The additional mass increases their gravitational pull. ultimately realigning their spins in the same direction. Their spin looks like a 'googly-eyed heart.' 'This discovery challenges the common belief that black holes formed in star clusters always have randomly distributed spins,' said Kıroğlu.
CBS News
14-02-2025
- Science
- CBS News
Northwestern study shows how black holes can spin together in a Valentine's embrace
EVANSTON, Ill. (CBS) -- Love and black holes generally do not go together. Soundgarden's "Black Hole Sun"— with its references to summer stench, a dead-looking sky, and times being gone for honest men sometimes far too long for snakes — is a classic, but not a slow dance number for a wedding reception. A person described as an emotional black hole is universally described as a person with whom relationships are best avoided. But it may be time to give a second look at the concepts of love and black holes — in this case, actual black holes out in space. In a study announced just in time for Valentine's Day, Northwestern University astrophysicists found that binary black holes — when they form in crowded clusters of stars — align their spins, merge together, and end up looking like a cute little heart as their streams of debris glide about. Stars have to be sacrificed for this to happen. Simulations by Northwestern scientists showed the black holes black holes gliding around the discotheque of space end up slamming into massive stars. The black holes rip the stars apart and consume their stellar debris—becoming more massive, Northwestern explained. The additional mass increases the black holes' gravitational pull, and their spins — which start out random and chaotic — end up realigning themselves into the same direction as they orbit one another, Northwestern said. Northwestern said the result is the black holes' debris tails spinning into celestial harmony — and looking like a heart with cartoon eyes. While the visual is striking when seen in simulation, the study has also brought about an important new understanding about the behavior of black holes. "This discovery challenges the common belief that black holes formed in star clusters always have randomly distributed spins." Northwestern physics and astronomy grad student Fulya Kıroğlu, who led the study, said in a news release. The study will be published in The Astrophysical Journal Letters.
