Star Clusters Current Events

Star Clusters Current Events, Star Clusters News Articles.
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When galaxies collide: Hubble showcases six beautiful galaxy mergers
To celebrate a new year, the NASA/ESA Space Telescope has published a montage of six beautiful galaxy mergers. Each of these merging systems was studied as part of the recent HiPEEC survey to investigate the rate of new star formation within such systems. These interactions are a key aspect of galaxy evolution and are among the most spectacular events in the lifetime of a galaxy. (2021-01-07)

Astronomers report mysterious giant star clusters
An international team of astronomers reported evidence for the formation of mysterious (2006-01-10)

Star clusters are only the tip of the iceberg
Star clusters have been part of the Imaginarium of human civilization for millennia. The brightest star clusters to Earth, like the Pleiades, are readily visible to the naked eye. A team around astronomer Stefan Meingast at the University of Vienna has now revealed the existence of massive stellar halos, termed coronae, surrounding local star clusters. The paper was published in ''Astronomy & Astrophysics''. (2020-10-15)

New 'alien' invaders found in the Milky Way: Queen's University astronomer
As many as one quarter of the star clusters in our Milky Way -- many more than previously thought -- are (2010-02-26)

Magellanic gemstones in the southern sky
Hubble has captured the most detailed images to date of the open star clusters NGC 265 and NGC 290 in the Small Magellanic Cloud - two sparkling sets of gemstones in the southern sky. (2006-04-18)

Colliding galaxies make love, not war
A new Hubble image of the Antennae galaxies is the sharpest yet of this merging pair of galaxies. As the two galaxies smash together, billions of stars are born, mostly in groups and clusters of stars. The brightest and most compact of these are called super star clusters. (2006-10-17)

Super-star clusters may be born small and grow by coalescing
A trio of massive, young star clusters found embedded in a star cloud may shed light on the formation of super-star clusters and globular clusters. (2005-01-11)

Old star clusters could have been the birthplace of supermassive stars
A team of international astrophysicists may have found a solution to a problem that has perplexed scientists for more than 50 years: why are the stars in globular clusters made of material different to other stars found in the Milky Way? (2018-06-21)

Ultra-compact dwarf galaxies are bright star clusters
Astronomy & Astrophysics is publishing a new statistical study of the so-called 'ultra-compact dwarf galaxies' (UCDs), which are still mysterious objects. A team of astronomers has investigated how many of these UCDs exist in nearby galaxy clusters and groups. They show that the properties of UCDs match those of bright star clusters. (2011-12-19)

Astronomers explain why a star is so hot right now
Astronomers have solved a mystery over small, unusually hot blue stars, 10 times hotter than our Sun, that are found in the middle of dense star clusters. (2015-06-23)

Globular clusters tell tale of star formation in nearby galaxy metropolis
The NASA/ESA Hubble Space Telescope has identified thousands of more than 5 billion year-old globular clusters in the Virgo cluster of galaxies. One of the results of these discoveries led astronomers to understand more about the life and evolution of cannibal galaxies. (2008-08-05)

Bonn astronomers simulate life and death in the universe
The question of how star clusters are created from interstellar gas clouds and why they then develop in different ways has now been answered by researchers at the Argelander Institute for Astronomy at the University of Bonn with the aid of computer simulations. The scientists have solved -- at least at a theoretical level -- one of the oldest astronomical puzzles, namely the question of whether star clusters differ in their internal structure. (2007-10-29)

Tidal tails -- The beginning of the end of an open star cluster
In the course of their life, open star clusters continuously lose stars to their surroundings. The resulting swath of tidal tails provides a glimpse into the evolution and dissolution of a star cluster. Thus far only tidal tails of massive globular clusters and dwarf galaxies have been discovered in the Milky Way system. In open clusters, this phenomenon existed only in theory. Researchers at Heidelberg University have now finally verified the existence of such a tidal tail in the star cluster closest to the Sun, the Hyades. An analysis of measurements from the Gaia satellite led to the discovery. (2019-02-15)

Chandra catches 'piranha' black holes
Supermassive black holes have been discovered to grow more rapidly in young galaxy clusters, according to new results from NASA's Chandra X-ray Observatory. These (2007-07-24)

A simple view of gravity does not fully explain the distribution of stars in crowded clusters
Gravity remains the dominant force on large astronomical scales, but when it comes to stars in young star clusters the dynamics in these crowded environments cannot be simply explained by the pull of gravity. (2013-02-20)

Close encounters of the stellar kind
NASA's Chandra X-ray Observatory has confirmed that close encounters between stars form X-ray emitting, double-star systems in dense globular star clusters. These X-ray binaries have a different birth process than their cousins outside globular clusters, and should have a profound influence on the cluster's evolution. (2003-07-30)

Star cluster baby pictures leave astronomers beaming
Peering deep into a distant galaxy, astronomers have obtained a glimpse of what may be the youngest massive star clusters ever observed. (2000-01-11)

Hubble spots flock of cosmic ducks
This star-studded image shows us a portion of Messier 11, an open star cluster in the southern constellation of Scutum (the Shield). Messier 11 is also known as the Wild Duck Cluster, as its brightest stars form a 'V' shape that somewhat resembles a flock of ducks in flight. (2019-03-29)

'Dead' galaxies aren't so dead after all, U-M researchers find
University of Michigan astronomers examined old galaxies and were surprised to discover that they are still making new stars. The results provide insights into how galaxies evolve with time. (2011-05-31)

Some stars capture rogue planets
New research suggests that billions of stars in our galaxy have captured rogue planets that once roamed interstellar space. The nomad worlds, which were kicked out of the star systems in which they formed, occasionally find a new home with a different sun. This finding could explain the existence of some planets that orbit surprisingly far from their stars, and even the existence of a double-planet system. (2012-04-17)

Hubble Friday
This beautiful clump of glowing gas, dark dust and glittering stars is the spiral galaxy NGC 4248, located about 24 million light-years away in the constellation of Canes Venatici (The Hunting Dogs). (2017-07-28)

First low-mass star detected in globular cluster
Even the most powerful high-tech telescopes are barely able to record remote low-mass and thus faint stars. Together with researchers from Poland and Chile, an astrophysicist from the University of Zurich has now detected a low-mass star in globular cluster M22 for the first time through microlensing. The result indicates that the overall mass of globular clusters might well be explained without enigmatic dark matter. (2011-12-15)

Crowdsourcing the cosmos: Astronomers welcome all to identify star clusters in Andromeda galaxy
Astronomers at the University of Washington and partners invite the public to search Hubble Space Telescope images of the Andromeda galaxy to help identify star clusters and increase understanding of how galaxies evolve. (2012-12-05)

Hubble views stellar genesis in the Southern Pinwheel
The full beauty of nearby barred spiral galaxy M83 is unveiled in all of its glory in this Hubble Space Telescope mosaic image. he vibrant magentas and blues reveal the galaxy is ablaze with star formation. The galaxy, also known as the Southern Pinwheel, lies 15 million light-years away in the constellation Hydra. (2014-01-09)

Globular clusters 4 billion years younger than previously thought
Globular clusters could be up to 4 billion years younger than previously thought, new research led by the University of Warwick has found. (2018-06-04)

Massive star clusters swaddled in huge cocoons during infancy
New observations with the Gemini North Telescope in Hawaii led by the University of Colorado at Boulder indicate three of the youngest massive star clusters yet detected each are swaddled in dust cocoons at least 600 trillion miles across, providing new clues to the evolution of the early universe. (2001-06-03)

First transiting planets in a star cluster discovered
All stars begin their lives in groups. Most stars are born in small groups that quickly fall apart. Others form in huge, dense swarms, where stars jostle with thousands of neighbors while strong radiation and harsh stellar winds scour interstellar space, stripping planet-forming materials from nearby stars. It would thus seem an unlikely place to find alien worlds. Yet 3,000 light-years from Earth, in the star cluster NGC 6811, astronomers have found two planets smaller than Neptune orbiting sun-like stars. (2013-06-26)

Million-star cluster in nearby galaxy reported
A small, bizarre cluster of a million young stars - including more than 4,000 massive (2003-06-05)

UCLA astronomers watch star clusters spewing out dust
A team led by UCLA astronomers has used new data to show that stars are responsible for producing dust on galactic scales. (2016-11-30)

Astronomers find the most distant star clusters hidden behind a nearby cluster
Astronomers have discovered the most distant population of star clusters ever seen, hidden behind one of the nearest such clusters to Earth. At a distance of more than a billion light-years, the newly discovered star clusters provide a unique probe of what similar systems in our own galaxy once looked like. (2007-01-10)

Most stars are born in clusters, some leave 'home'
New modeling studies demonstrate that most of the stars we see were formed when unstable clusters of newly formed protostars broke up. These protostars are born out of rotating clouds of dust and gas, which act as nurseries for star formation. Rare clusters of multiple protostars remain stable and mature into multi-star systems. The unstable ones will eject stars until they achieve stability and end up as single or binary stars. (2014-09-24)

Like thunder without lightning
Mergers between black holes and neutron stars in dense star clusters are quite unlike those that form in isolated regions where stars are few. Their associated features could be crucial to the study of gravitational waves and their source. Dr Manuel Arca Sedda of the Institute for Astronomical Computing at Heidelberg University came to this conclusion in a study that used computer simulations. (2020-05-15)

Star clusters discovery could upset the astronomical applecart
The discovery of young stars in old star clusters could send scientists back to the drawing board for one of the Universe's most common objects. By cross-matching the locations of several thousand young stars with the locations of stellar clusters in neighboring galaxy, the researchers found 15 stellar candidates that were much younger than other stars within the same cluster. (2017-03-06)

"Nearby" Galaxy Clusters May Still Be Birthing New Stars
Astronomers have found newer, bluer galaxies than expected in nearby galaxy clusters, suggesting broods of young stars in these galaxies. The finding shows that star formation from galactic gas and dust in these clusters has occurred much more recently than astronomers had thought -- and may be an ongoing process. (1998-06-09)

Entire star cluster thrown out of its galaxy
The galaxy known as M87 has a fastball that would be the envy of any baseball pitcher. It has thrown an entire star cluster toward us at more than two million miles per hour. The newly discovered cluster, which astronomers named HVGC-1, is now on a fast journey to nowhere. Its fate: to drift through the void between the galaxies for all time. (2014-04-30)

Astronomers discover a new class of objects in two nearby galaxies
Astronomers searching for globular star clusters in a nearby galaxy have discovered an entirely new class of objects, unlike anything previously described. Much larger and fainter than typical globular clusters, the new objects were first detected in Hubble Space Telescope images of the lenticular galaxy NGC 1023. They may hold clues to how galaxies of this type formed. (2002-03-28)

Astronomers find runaway galaxies
We know of about two dozen runaway stars, and have even found one runaway star cluster escaping its galaxy forever. Now, astronomers have spotted 11 runaway galaxies that have been flung out of their homes to wander the void of intergalactic space. (2015-04-23)

XMM-Newton reveals the origin of elements in galaxy clusters
Deep observations of two X-ray bright clusters of galaxies with ESA's XMM-Newton satellite allowed a group of international astronomers to measure their chemical composition with an unprecedented accuracy. Knowing the chemical composition of galaxy clusters is of crucial importance to understanding the origin of chemical elements in the Universe. (2006-05-10)

NASA's James Webb Space Telescope could potentially detect the first stars and black holes
The first stars in the universe blazed to life about 200 to 400 million years after the big bang. Observing those very first individual stars across such vast distances of space normally would be a feat beyond any space science telescope. However, new theoretical work suggests that under the right circumstances, and with a little luck, NASA's upcoming James Webb Space Telescope will be able to capture light from single stars within that first generation of stars. (2018-04-25)

Black holes in distant galaxies point to wild youth
Like 'flower power' tattoos on aging ex-hippy baby boomers, unexpectedly large numbers of neutron stars and black holes in elliptical galaxies suggest some of these galaxies lived through a much wilder youth. The discovery by NASA's Chandra X-ray Observatory may require a revision of how elliptical galaxies evolved. (2002-06-04)

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