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News About Stellar Chemistry
July 03, 2015
Discovering a New Stage in the Galactic Lifecycle
Pasadena CA (SPX) Jun 28, 2015
On its own, dust seems fairly unremarkable. However, by observing the clouds of gas and dust within a galaxy, astronomers can determine important information about the history of star formation and the evolution of galaxies. Now thanks to the unprecedented sensitivity of the telescope at the Atacama Large Millimeter Array (ALMA) in Chile, a Caltech-led team has been able to observe the dust contents of galaxies as seen just 1 billion years after the Big Bang-a time period known as redshift 5-6. Th ... read more

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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. The international team found the so-called ... more
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Intense radio emission from tiny binary star calls for stellar model rethink
A study led by researchers in the Group of Radio Astronomy of the University of Valencia has determined the mass of a tiny binary star thanks to its intense radio emissions -rare in such small stars ... more
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NASA simulation suggests black holes may make ideal dark matter labs
A new NASA computer simulation shows that dark matter particles colliding in the extreme gravity of a black hole can produce strong, potentially observable gamma-ray light. Detecting this emission w ... more
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Over 800 dark galaxies found in the famous Coma Cluster
A group of researchers from the Stony Brook University (the State University of New York) and the National Astronomical Observatory of Japan has discovered 854 "ultra dark galaxies" in the Coma Clus ... more
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Neutron star's echoes give astronomers a new measuring stick
In late 2013, when the neutron star at the heart of one of our galaxy's oddest supernovae gave off a massive burst of X-rays, the resulting echoes - created when the X-rays bounced off clouds of dus ... more
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Magnetic field discovery gives clues to galaxy-formation processes
Astronomers making a detailed, multi-telescope study of a nearby galaxy have discovered a magnetic field coiled around the galaxy's main spiral arm. The discovery, they said, helps explain how galac ... more
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Best observational evidence yet of first-generation stars in the universe
Astronomers using the European Southern Observatory's Very Large Telescope (VLT) have discovered by far the brightest galaxy yet found in the early universe and found strong evidence that examples o ... more
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Seeing Where Stars Collide
Scientists have imaged a cluster of stars, heavily obscured by material in our galaxy, where stars are so densely packed that it is likely a rare environment where stars can collide. "It's a bit lik ... more
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Galactic crashes fuel quasars
When galaxies collide, bright things happen in the universe. Using the Hubble Space Telescope's infrared vision, astronomers have unveiled some of the previously hidden origins of quasars, the brigh ... more
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Unknown extreme star formation discovered
NOEMA (Northern Extended Millimeter Array), the most powerful millimetre radio telescope of the Northern Hemisphere, has unveiled its first astronomical image: a unique and spectacular view of a pre ... more
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Lab mimicry opens a window to the deep interiors of stars and planets
The matter that makes up distant planets and even-more-distant stars exists under extreme pressure and temperature conditions. This matter includes members of a family of seven elements called the n ... more
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Cosmic ray observatory to expand
Physicists plan a $6.4 million expansion of the $25 million Telescope Array observatory in Utah so they can zero in on a "hotspot" that seems to be a source of the most powerful particles in the uni ... more
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Lonely galaxy lost in space
Most galaxies are clumped together in groups or clusters. A neighboring galaxy is never far away. But this galaxy, known as NGC 6503, has found itself in a lonely position, at the edge of a strangel ... more
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A celestial butterfly emerges from its dusty cocoon
Some of the sharpest images ever made with ESO's Very Large Telescope have, for the first time, revealed what appears to be an ageing star giving birth to a butterfly-like planetary nebula. These ob ... more
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Most detailed view ever of star formation in the distant universe
ALMA's Long Baseline Campaign has produced a spectacularly detailed image of a distant galaxy being gravitationally lensed. The image shows a magnified view of the galaxy's star-forming regions, the ... more
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Nearby 'dwarf' galaxy is home to luminous star cluster
A team of Tel Aviv University and UCLA astronomers have discovered a remarkable cluster of more than a million young stars are forming in a hot, dusty cloud of molecular gases in a tiny galaxy very ... more
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    Exiled stars explode far from home
    Sharp images obtained by the Hubble Space Telescope confirm that three supernovae discovered several years ago exploded in the dark emptiness of intergalactic space, having been flung from their hom ... more
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    Charting the Milky Way From the Inside Out
    Imagine trying to create a map of your house while confined to only the living room. You might peek through the doors into other rooms or look for light spilling in through the windows. But, in the ... more
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    How to weigh the Milky Way
    What if your doctor told you that your weight is somewhere between 100 and 400 lbs.? With any ordinary scale every patient can do better at home. Yet, one patient can't: the Milky Way. Even though t ... more
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    China plans to launch dark matter probe
    Chinese scientists are planning to launch a dark matter probe satellite by the end of this year, researchers with the project announced on Friday. The dark matter particle explorer (DAMPE) satellite ... more
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    Distant radio galaxies reveal hidden structures right above our heads
    By observing galaxies billions of light-years away, a team of astronomers has detected tube-like structures mere hundreds of kilometres above the Earth's surface. "For over 60 years, scientist ... more
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    Unlocking the secrets of dark matter and dark energy
    At a traditional stone-laying ceremony outside La Serena, Chile on April 14th, construction officially began of the Large Synoptic Survey Telescope (LSST). This ambitious international astrophysics ... more
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    Sharp-eyed Alma spots a flare on famous red giant star
    Super-sharp observations with the telescope Alma have revealed what seems to be a gigantic flare on the surface of Mira, one of the closest and most famous red giant stars in the sky. Activity like ... more
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    Taking control of light emission
    Researchers have found a way to couple the properties of different two-dimensional materials to provide an exceptional degree of control over light waves. They say this has the potential to lead to ... more
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