Sentences with phrase «clusters of holes»

You might be suffering from trypophobia, or the fear of clusters of holes.

Many people, however, report feeling an aversion to clusters of holes — such as those of a honeycomb, a lotus seed pod or even aerated chocolate.

The repeating pattern of high contrast seen in clusters of holes, for example, is similar to the pattern on the skin of many snakes and the pattern made by a spider's dark legs against a lighter background.

The authors theorize that clusters of holes may be evolutionarily indicative of contamination and disease — visual cues for rotten or moldy food or skin marred by an infection.

«On the surface, images of threatening animals and clusters of holes both elicit an aversive reaction,» Ayzenberg says.

Not exact matches

These stars also probably formed in dense clusters, so it is likely that the black holes created on their deaths would have merged, giving rise to black holes of several thousand solar masses.

Alternative explanations posit these anomalously massive black holes grew and merged in throngs of stars called globular clusters, but that process can easily require more time than the current age of the universe.

But if you have clusters of black holes at the centers of galaxies, there are mechanisms by which some could rapidly grow, form binaries and merge with each other.»

The team's simulations show that 70 to 98 % of the middleweight black holes at the hearts of clusters were ejected, depending on the assumptions used, such as the mass of the small black holes and the initial mass of the middleweight black hole.

Craig Wheeler of the University of Texas in Austin, US, who is not a member of the team, says it is still not known whether middleweight black holes form in globular clusters in the first place.

Images of M32, a dwarf elliptical galaxy near to our own, show that stars become clustered much more closely together near its centre, which is what should happen if the galaxy contains a black hole.

If most of the black holes really do get kicked out of their globular clusters, this could explain why searches have had such difficulty finding them there.

Hundreds of middleweight black holes may rove unseen through the galaxy after being evicted from their homes in star clusters, according to calculations.

There are no firm detections so far, but a globular cluster called G1 is the best candidate for hosting a middleweight black hole, based on the motion of stars at its centre, Holley - Bockelmann says.

The Chandra results show that a supermassive black hole in the heart of the Perseus galaxy cluster, 250 million light - years from Earth, generates enough of a sonic wallop to do the job.

The central galaxy in this cluster harbors a supermassive black hole that is in the process of devouring star - forming gas, which fuels a pair of powerful jets that erupt from the black hole in opposite directions into intergalactic space.

Different theories exist to explain the source of these middleweights, but some astronomers believe they grow from the mergers of stars and black holes in the densely packed centres of collections of stars called globular clusters.

That's the lesson from new observations by the Hubble Space Telescope, which has spotted the signs of midsize black holes at the hearts of ancient stellar swarms called globular clusters.

But if the black holes instead find one another in the chaos of a star cluster, they could spin any which way.

Another is that black holes find one another within a dense cluster of stars, as massive black holes sink to the center of the clump (SN Online: 6/19/16).

The X-ray sky crackles with previously unimagined action: exploding stars, gas swirling into monster black holes, and pile - driver smashups of whole clusters of galaxies.

But the trio swung too close to a black hole at the centre of their star cluster.

Current theories suggest that the seeds of these black holes were the result of either the growth and collapse of the first generation of stars in the Universe; collisions between stars in dense stellar clusters; or the direct collapse of extremely massive stars in the early Universe.

NASA's Fermi space telescope has seen signs of such photons around the supermassive black hole at the centre of the Milky Way, where dark matter is expected to cluster.

Scientists have associated the accumulation of these clusters with tissue damage that leaves sponge - like holes in the brain.

Based on observational knowledge, the researchers knew that supermassive black holes propel cosmic gases with a lot of energy while also «blowing» this gas away from galaxy clusters.

The accumulation of these clusters has been associated with tissue damage that leaves sponge - like holes in the brain.

The discovery of the magnetar's former companion elsewhere in the cluster helps solve the mystery of how a star that started off so massive could become a magnetar, rather than collapse into a black hole.

In the Universe, cosmic ray particles are accelerated by galaxy clusters, supernovae, binary stars, pulsars and certain types of supermassive black holes.

A recent examination of globular cluster RZ2109, however, reveals that it possesses a small black hole.

This glittering cluster contains over 100,000 stars, and could also hide a rare type of black hole at its centre.

Intermediate - mass black holes are thought to form either from the merging of several smaller, stellar - mass black holes, or as a result of a collision between massive stars in dense clusters.

In terms of mass they lie between the more commonly found stellar - mass and supermassive types of black hole [3], and could tell us about how black holes grow and evolve within clusters like Messier 15, and within galaxies.

Of the two possibilities it is more likely that Messier 15 harbours a black hole at its centre, as does the massive globular cluster Mayall II.

But there has previously been no clear - cut evidence for black holes of any size within globular clusters, spherical groupings of millions of stars.

Hints of their existence came from either X-ray emissions — thought to arise as the black holes consumed their companion stars — or the motion of stars near the centre of some clusters (see Middleweight black holes are «missing link»).

Vicky Kalogera, an astronomer at Northwestern University in Evanston, Illinois, US, has done theoretical studies of how black holes should behave in globular clusters.

Now, astronomers led by Thomas Maccarone of the University of Southampton, UK, have found the best evidence yet for a black hole in a globular cluster.

The likely black hole is the only one found among the 6000 globular clusters that XMM - Newton observed in the vicinity of NGC 4472.

That dip was caused by blobs of hot plasma emitted by the galaxy's black hole, which were magnified by a cluster of stars acting as a cosmic lens between Earth and the galaxy, researchers suggest.

Read previous Astrophile columns: Blinged - out stars were born rich, Supercritical water world does somersaults, Attack of the mystery green blobs, Undead stars rise again as supernovae, The sticky star cluster that's mostly black hole, The rebel star that broke the medieval sky, Star exploded?

Their tendency would be to cluster near the centre of galaxies, making them more likely to pass near the supermassive black holes that sit there and run into the accretion discs of gas that surround them.

In a 2008 study, Haiman and his colleagues hypothesized that radiation from a massive neighboring galaxy could split molecular hydrogen into atomic hydrogen and cause the nascent black hole and its host galaxy to collapse rather than spawn new clusters of stars.

Some people experience intense aversion and anxiety when they see clusters of roughly circular shapes, such as the bubbles in a cup of coffee or the holes in a sponge.

Perhaps what's different about them, McDonald says, is that the cooling of gas flowing into the center is slowed down by the heating effect of a black hole spewing out material from the center of the cluster.

By gathering energetic X-rays, it will study the physics of black holes, the evolution of galaxy clusters, and the formation of heavy elements — crucial for life — in exploding stars.

Overall, the findings showed that although trypophobia has been described as the «fear of holes», it would be more accurately characterised as a predominantly disgust - based aversion to clusters of roughly circular objects.

One possible interpretation of the discovery, Loeb says, is «that we are witnessing a short - lived phase in the evolution of clusters, just before the central massive black hole starts its feedback.

The instruments are expected to reveal details about gases trapped in galaxy clusters and wafting through supernova remnants as well as the turbulent streams of material spiraling away from black holes.

Astronomers say a likely reason this particular cluster is so productive is that that the cooling of gas at its center is not being countered by the emission of hot jets from a central black hole.