Sentences with phrase «massive star clusters»

Westerlund 1 is the most massive cluster of stars in our galaxy, home to several hundred of thousand stars, and is the closest analogue to some of the truly massive star clusters seen in distant galaxies.

In some it was possible to view massive star clusters still in the process of formation.

An alternate theory of the dwarfs is that they are just really massive star clusters — groups of a hundred thousand stars born at the same time.

Not only are these stars powerful evidence for an important theory of galactic evolution, they are also likely to be over 10 billion years old — the dim, but dogged survivors of perhaps the oldest and most massive star cluster within the Milky Way.

Our Sun was born into a massive star cluster comprised of thousands of stellar bodies.

We compared the [CII] intensity map with... ▽ More We investigate the large - scale structure of the interstellar medium (ISM) around the massive star cluster RCW38 in the [CII] 158 um line and polycyclic aromatic hydrocarbon (PAH) emission.

Abstract: We investigate the large - scale structure of the interstellar medium (ISM) around the massive star cluster RCW38 in the [CII] 158 um line and polycyclic aromatic hydrocarbon (PAH) emission.

Not exact matches

Method: Euclid will measure gravitational lensing, where light from far - off objects bends around a massive body (a regular star or cluster of dark matter), to determine dark matter's distribution.

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.

The most massive stars in the original cluster will have already run through their brief but brilliant lives and exploded as supernovae long ago.

In 2007, Hubble researchers found three generations of stars in the massive globular cluster NGC 2808.

The team says the pulsar's path indicates that 800,000 years ago it was fired from a cluster of massive stars that now lies about 6500 light years away from Earth (Monthly Notices of the Royal Astronomical Society, vol 400, p L99).

Astronomers had long debated whether globular clusters were massive enough for black holes to form, either when the clusters condensed in the early universe or when gas and stars accumulated at their cores.

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).

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.

Hidden in its gaping maw may be the Milky Way's most massive cluster of young stars.

These stars may even be the remains of the most massive and oldest surviving star cluster of the entire Milky Way.

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.

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.

This remarkable cluster contains hundreds of very massive stars, some shining with a brilliance of almost one million suns.

As this cluster is relatively old, a part of this lost mass will be due to the most massive stars in the cluster having already reached the ends of their lives and exploded as supernovae.

Stars can grow no bigger than 150 times as massive as our sun, according to a study of the dazzling «Arches» cluster near the center of our galaxy — shown here in an artist's impression.

That means the progenitor of the neutron star must have been more massive than the heaviest stars still around in the cluster, which weigh up to 35 solar masses, says astronomer Michael Muno of the University of California, Los Angeles, whose team first identified the object in Chandra observations taken in May and June this year.

It forms a close binary with another massive star within the open cluster, meaning that the two orbit around a shared centre of mass.

The limit matches Oey's own review of massive stars in numerous other clusters, published in the 10 February Astrophysical Journal Letters.

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.

The brightest object in a nearby star cluster, thought for decades to be a single star, is actually two massive stars in the process of merging.

Now, astronomers observing the cluster in ultraviolet light using the Hubble Space Telescope have found a total of nine stars with masses of more than 100 suns, the largest collection of very massive stars found to date.

It also makes a prediction: Astronomers should begin to see clusters of massive stars in SN 2006gy's vicinity in future years when the debris cloud dissipates.

Known as Messier 18 this star cluster contains stars that formed together from the same massive cloud of gas and dust.

In a new study, the scientists show their theoretical predictions last year were correct: The historic merger of two massive black holes detected Sept. 14, 2015, could easily have been formed through dynamic interactions in the star - dense core of an old globular cluster.

Even though no massive stars form in such clusters, the stars there all produce protostellar jets from their accompanying disks, and these, too, can play a dramatic role in shaping a cluster's fate.

With their gas depleted, it may be impossible for the disks around stars in massive clusters to form giant planets like Jupiter or Saturn.

One star pops off, then another and another, until all the massive stars in the cluster have exploded and stirred up a hornet's nest of cosmic rays.

They found that massive stars in MGG 11 — home to the midsize black hole candidate — reached the centre of the cluster in three million years, while those in the other cluster took 15 million years.

In the May 2018 Monthly Notices of the Royal Astronomical Society, Schleicher and colleagues show that such clusters also could create massive black hole seeds, as newly formed stars accrete gas left over in the cluster.

Portegies Zwart and his team suspect a middleweight black hole forms after a massive star, drawn by gravity to the crowded centre of a star cluster, merges with other stars swarming around there.

Given the massive concentrations of giant, hot stars clustered around the center, could we at least call ourselves a starburst galaxy?

Massive, dense clusters of stars?

For example, a cluster of dead neutron stars or a massive ball of neutrinos could cause the pull at the galactic core.

Tracing its observed motion back in time, Tan infers that BN was flung from the Trapezium cluster as a result of a close encounter with the massive star Theta - 1 Orionis C.

All Milky Way globular clusters formed long ago, so their short - lived massive stars have died and become black holes.

Simulations made by Simon Portegies Zwart, an astrophysicist at Leiden University in the Netherlands, show3 that massive stars are more likely to form in dense clusters, where collisions and mergers are more common.

In such a cluster, massive stars would sink towards the centre and, through complex interactions with lighter stars, form binary systems, possibly long after their transformation into black holes.

Except for a few blue, foreground stars, these myriad stars are members of the Milky Way nuclear star cluster, the most massive and densest stellar cluster in the galaxy.

Except for a few blue, foreground stars, the stars are part of the Milky Way's nuclear star cluster, the most massive and densest star cluster in our galaxy.

This animation illustrates how the powerful gravity of a massive galaxy cluster bends and focuses the light from a supernova behind it, resulting in multiple images of the exploding star.

Explanation: In the center of star - forming region 30 Doradus lies a huge cluster of the largest, hottest, most massive stars known.

Other Hubble observations confirmed that bluer (hence more massive) stars tend to sink towards the centre of a globular cluster, while redder, smaller stars move to the periphery — an idea that had long been predicted from theory, but never seen.

Inside these regions form multiple star clusters, each of which includes massive stars that forge more heavy elements and low - mass stars that host protoplanetary disks.