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News About Stellar Chemistry
November 24, 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 discover a distant galaxy with a pulse
Astronomers at Yale and Harvard have found a galaxy with a heartbeat - and they've taken its pulse. It is the first time scientists have measured the effect that pulsating, older red stars have on t ... more
Gaia consortium meets ahead of first data catalogue release next year
From 16 to 20 November 2015, about two hundred members of the Gaia Data Processing and Analysis Consortium (DPAC) are meeting in Leiden, The Netherlands, to review the current status of preparations ... more
3D visualisation redefines Milky Way's local architecture
Astronomers have used modern techniques to visualise data from ESA's Hipparcos space astrometry mission in three dimensions. The treatment of the data has offered insights into the distribution of n ... more
Discovery measures 'heartbeats' of distant galaxy's stars
In many ways stars are like living beings. They're born; they live; they die. And they even have a heartbeat. Using a novel technique, astronomers have detected thousands of stellar "pulses" in the ... more
More Than Meets the Eye - Delta Orionis in Orion's Belt
One of the most recognizable constellations in the sky is Orion, the Hunter. Among Orion's best-known features is the "belt," consisting of three bright stars in a line, each of which can be seen wi ... more
Oldest stars found near Milky Way center
Astronomers have discovered the oldest known stars, dating from before the Milky Way Galaxy formed, when the Universe was just 300 million years old. The stars, found near the centre of the Milky Wa ... more
Fermi Satellite Detects First Gamma-Ray Pulsar in Another Galaxy
Researchers using NASA's Fermi Gamma-ray Space Telescope have discovered the first gamma-ray pulsar in a galaxy other than our own. The object sets a new record for the most luminous gamma-ray pulsa ... more
The glowing halo of a zombie star
Led by Christopher Manser, a PhD student at the University of Warwick in the United Kingdom, the team used data from ESO's Very Large Telescope (VLT) and other observatories to study the shattered r ... more
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Close-up view of galaxies prompts re-think on star formation
Astronomers have identified for the first time one of the key components of many stars, a study suggests. A type of gas found in the voids between galaxies - known as atomic gas - appears to be part ... more
Clues to the formation of magnetic fields around stars and galaxies
An enduring astronomical mystery is how stars and galaxies acquire their magnetic fields. Physicists Jonathan Squire and Amitava Bhattacharjee at the U.S. Department of Energy's (DOE) Princeton Plas ... more
Dark Matter and Particle Acceleration in Near Space
Peering into darkness can strike fear into the hearts of some, but a new space telescope will soon peer into the darkness of "near space" (within a few thousand light years of Earth). Scientists are ... more
The fading cinders of some of our galaxy's earliest homesteaders
Using NASA's Hubble Space Telescope to conduct a "cosmic archaeological dig" at the very heart of our Milky Way galaxy, astronomers have uncovered the blueprints of our galaxy's early construction p ... more
Swift Spots its Thousandth Gamma-ray Burst
NASA's Swift spacecraft has detected its 1,000th gamma-ray burst (GRB). GRBs are the most powerful explosions in the universe, typically associated with the collapse of a massive star and the birth ... more
Unlocking the mysteries of 'little starlets'
Despite being discovered 20 years ago, very little is known about brown dwarfs - notably why they fail to grow into stars. Scientists say part of the answer probably lies in the physics of how ... more
Supernova twins: Making standard candles more standard than ever
Less than 20 years ago the world learned that the universe is expanding ever faster, propelled by dark energy. The discovery was made possible by Type Ia supernovae; extraordinarily bright and remar ... more
Growing pains in a cluster of protostars
A Yale-led study has found a cluster of young stars that develop in distinct, episodic spurts. It is the first time astronomers have seen such a growth pattern within a star cluster - a chaotic, tur ... more
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    One size fits all when it comes to unravelling how stars form
    Observations led by astronomers at the University of Leeds have shown for the first time that a massive star, 25 times the mass of the Sun, is forming in a similar way to low-mass stars. The d ... more
    VISTA discovers new component of Milky Way
    The Vista Variables in the Via Lactea Survey (VVV) [1] ESO public survey is using the VISTA telescope at the Paranal Observatory to take multiple images at different times of the central parts of th ... more
    Astrophysicists produce the first age map of the halo of the Milky Way
    University of Notre Dame astronomer Timothy Beers and his Galactic Archaeology group, which includes Notre Dame astronomers Daniela Carollo and Vinicius Placco, have led an international team of res ... more
    Artificial intelligence finds messy galaxies
    An astrophysics student at The Australian National University (ANU) has turned to artificial intelligence to help her to see into the hearts of galaxies. PhD student Elise Hampton was inspired ... more
    Lobster-Inspired Mirror Chosen for New Gamma-Ray-Burst Mission
    The University of Leicester has announced the signature of a contract to develop an innovative new type of X-ray mirror for a telescope to be flown on an orbiting observatory to be launched in 2021. ... more
    Suzaku Finds Common Chemical Makeup at Largest Cosmic Scales
    A new survey of hot, X-ray-emitting gas in the Virgo Galaxy Cluster shows that the elements needed to make stars, planets and people were evenly distributed across millions of light-years early in c ... more
    Suzaku satellite reveals the average chemical composition of our Universe
    All of the chemical elements that are heavier than carbon, the oxygen we breathe, the silicon that makes up the sand on the beach, were produced inside stars through nuclear fusion and released by s ... more
    Smallest galaxies are yielding big answers
    An international research team led by Yale University postdoctoral researcher Hakim Atek recently discovered more than 250 distant galaxies, including some of the faintest, smallest galaxies in the ... more
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