News About Stellar Chemistry
March 29, 2017
Andromeda Galaxy's Bright X-ray Mystery Solved by NuSTAR
Pasadena CA (JPL) Mar 28, 2017
The Milky Way's closest neighbor [of comparable size], [the] Andromeda [galaxy], features a dominant source of high-energy X-ray emission, but its identity was mysterious until now. As reported in a new study, NASA's NuSTAR (Nuclear Spectroscopic Telescope Array) mission has pinpointed an object responsible for this high-energy radiation. The object, called Swift J0042.6+4112, is a possible pulsar, the dense remnant of a dead star that is highly magnetized and spinning, researchers say. This inter ... read more

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Milky Way-like galaxies in early universe embedded in 'super halos'
By harnessing the extreme sensitivity of the Atacama Large Millimeter/submillimeter Array (ALMA), astronomers have directly observed a pair of Milky Way-like galaxies seen when the universe was only ... more
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Astronomers Observe Early Stages of Milky Way-like Galaxies
For decades, astronomers have found distant galaxies by detecting the characteristic way their gas absorbs light from a bright quasar in the background. But efforts to observe the light emitted by t ... more
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When helium behaves like a black hole
A team of scientists has discovered that a law controlling the bizarre behavior of black holes out in space - is also true for cold helium atoms that can be studied in laboratories. "It's called an ... more
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Another reason to flip the off switch: light pollution
For the 11th year running, cities worldwide will turn their lights off Saturday to mark Earth Hour in a global call to action on climate change. ... more
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UV background could provide clues to missing galaxies
Astronomers have developed a way to detect the ultraviolet (UV) background of the universe, which could help explain why there are so few small galaxies in the cosmos. UV radiation is invisible but ... more
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Hubble discovery of runaway star yields clues to breakup of multiple-star system
As British royal families fought the War of the Roses in the 1400s for control of England's throne, a grouping of stars was waging its own contentious skirmish - a star wars far away in the Orion Ne ... more
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With astronomy rewind, citizen scientists will bring zombie astrophotos back to life
A new citizen-science project will rescue tens of thousands of potentially valuable cosmic images that are mostly dead to science and bring them fully back to life. Called Astronomy Rewind, the effo ... more
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ALMA's Ability to See a "Cosmic Hole" Confirmed
Researchers using the Atacama Large Millimeter/submillimeter Array (ALMA) successfully imaged a radio "hole" around a galaxy cluster 4.8 billion light-years away. This is the highest resolution imag ... more
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Astronomers hazard a ride in a 'drifting carousel' to understand pulsating stars
What sounds like a stomach-turning ride at an amusement park might hold the key to unravelling the mysterious mechanism that causes beams of radio waves to shoot out from pulsars - super-magnetic ro ... more
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Tracing Aromatic Molecules in the Early Universe
A UC Riverside-led team of astronomers have taken us a step closer to better understand the formation and destruction mechanisms of dust molecules in the distant universe. A molecule found in car en ... more
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New Hubble mosaic of the Orion Nebula
In the search for rogue planets and failed stars astronomers using the NASA/ESA Hubble Space Telescope have created a new mosaic image of the Orion Nebula. During their survey of the famous star for ... more
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USRA awarded NASA's Stratospheric Observatory for Infrared Astronomy contract
Universities Space Research Association (USRA), headquartered in Columbia, Maryland, has been awarded a contract to provide NASA with science and mission operations support for its Stratospheric Obs ... more
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NASA's Webb Telescope Ghostly 'Lights Out' Inspection
What happens when the lights are turned out in the enormous clean room that currently houses NASA's James Webb Space Telescope? The technicians who are inspecting the telescope and its expansive gol ... more
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First public data released by hyper suprime-cam Subaru Strategic Program
The first massive data set of a "cosmic census" has been released using the largest digital camera on the Subaru Telescope. With its beautiful images now available for the public at large, figuring ... more
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Distant galaxies are dominated by gas and stars so where is the Dark Matter
New observations of rotating galaxies at the peak epoch of galaxy formation, 10 billion years ago, surprisingly show that these massive, star-forming galaxies are completely dominated by baryonic or ... more
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The end of a star or a supernova impostor
Massive stars end their lives in supernova explosions, highly energetic events that can be as luminous as the entire starlight from their host galaxies. However, there are events called "supernova i ... more
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New material helps record data with light
Russian physicists with their colleagues from Europe through changing the light parameters, learned to generate quasiparticles - excitons, which were fully controllable and also helped to record inf ... more
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Giant Magellan Telescope will answer mnay major questions
The Giant Magellan Telescope (GMT), which is currently being built in Chile, is poised to answer essential questions about the universe, according to the newly appointed president of the organizatio ... more
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'Peter Pan' radio galaxies that may never grow up
A team of astronomers has doubled the number of known young, compact radio galaxies - galaxies powered by newly energized black holes. The improved tally will help astronomers understand the relatio ... more
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Dark Matter Detection Receives 10-Ton Upgrade
In an abandoned gold mine one mile beneath Lead, South Dakota, the cosmos quiets down enough to potentially hear the faint whispers of the universe's most elusive material - dark matter. Shielded fr ... more
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Bevy of quasars boosts understanding of galaxies' origins
Late last year, an international team including researchers from the Kavli Institute for Astronomy and Astrophysics (KIAA) at Peking University announced the discovery of more than 60 extremely dist ... more
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Iota Orionis: Pulsating beacon of a constellation
Astronomers from the BRITE (BRight Target Explorer) Constellation project and Ritter Observatory have discovered a repeating one-per-cent spike in the light of a very massive star which could change ... more
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Cosmic environments and their influence in star formation
The scaffolding that holds the large-scale structure of the universe constitutes galaxies, dark matter and gas (from which stars are forming), organized in complex networks known as the cosmic web. ... more
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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. Dr Bi-Qing For, from the International Centre for Rad ... more
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