STELLAR CHEMISTRY

News About Stellar Chemistry

4,992 articles

Simulated Galaxies Provide Fresh Evidence of Dark Matter
Apr 24, 2017 (SPX)
As years passed, new and more refined observations of clusters and of individual galaxies all hinted at the existence of some unseen force holding galaxies toge...
Gaia's Snapshot Of Another Galaxy
Apr 21, 2017 (ESA)
Gaia, ESA's mission for precision astrometry, was launched in December 2013 and has been scanning the sky since 25 July 2014. While its goal is to survey one bi...
Rare Supernova Discovery Ushers in New Era for Cosmology
Apr 21, 2017 (SPX)
This phenomenon called 'gravitational lensing' is an effect of Einstein's theory of relativity - mass bends light. This means that the gravitational field of a ...
A New Angle on Two Spiral Galaxies for Hubble's 27th Birthday
Apr 21, 2017 (SPX)
The edge-on galaxy is called NGC 4302, and the tilted galaxy is NGC 4298. These galaxies look quite different because we see them angled at different positions ...
Two Million Stars On The Move
Apr 21, 2017 (ESA)
Stars move through our Galaxy, the Milky Way, although the changes in their positions on the sky are too small and slow to be appreciated with the naked eye ove...
Exploring the Milky Way's star factories with GUSTO
Apr 20, 2017 (SPX)
"Astronomers have an idea how the Milky Way Galaxy's giant clouds of dust and molecular gas produce stars," SESE astronomer Chris Groppi said. "But we don't hav...
Astronomers perform largest-ever survey of high-mass binary star systems
Apr 20, 2017 (SPX)
An international group of astronomers led by researchers at the University of Sao Paulo's Institute of Astronomy, Geophysics and Atmospheric Sciences (IAG-USP) ...
Hydrogen, Hydrogen, Everywhere
Apr 20, 2017 (SPX)
After combining this staggering number of spectra - recorded patterns of wavelengths revealing clues about the nature of a cosmic target - UA astronomers Huania...
Deep Inside Galaxy M87
Apr 20, 2017 (SPX)
A research team led by Silke Britzen from the Max Planck Institute for Radio Astronomy in Bonn, Germany, has found strong indication for turbulent processes con...
New method can model chemistry in extreme magnetic fields of white dwarfs
Apr 19, 2017 (SPX)
Approximately 10 to 20 percent of these white dwarfs exhibit strong magnetic fields. "The strength of the magnetic field in some white dwarfs can reach up to 10...
Hydrogen halo lifts the veil of our galactic home
Apr 19, 2017 (SPX)
After combining this staggering number of spectra - recorded patterns of wavelengths revealing clues about the nature of a cosmic target - UA astronomers Huania...
Columbia engineers invent method to control light propagation in waveguides
Apr 19, 2017 (SPX)
Photonic integrated circuits (ICs) are based on light propagating in optical waveguides, and controlling such light propagation is a central issue in building t...
Penn researchers provide new insight into dark matter halos
Apr 18, 2017 (SPX)
The explanation: A form of matter called dark matter that does not directly interact with light. Many scientists now believe that more than 80 percent of the ma...
Keck Observatory Achieves First Light With New Instrument
Apr 13, 2017 (SPX)
"I'm thrilled to see this new instrument," said Keck Observatory Director Hilton Lewis. "It takes years to design and build these very sophisticated instruments...
ALMA Team Up to Give First Look at Birthplaces of Most Current Star
Apr 13, 2017 (SPX)
At that time, the Universe was experiencing its peak rate of star formation. Most stars in the present Universe were born then. "We knew that galaxies in that e...
Waterloo Researchers Capture First Image of a Dark Matter Web that Connects Galaxies
Apr 13, 2017 (SPX)
The composite image, which combines a number of individual images, confirms predictions that galaxies across the universe are tied together through a cosmic web...
Collisions generate gas in debris disks
Apr 13, 2017 (SPX)
Many young stars, as well as more middle-aged stars like our sun, have "debris disks"-like the Oort Cloud in our own solar system-that are believed to be remnan...
The making of a supernova
Apr 12, 2017 (SPX)
New research led by Weizmann Institute of Science researchers shows that the stars that become so-called core-collapse supernovae might already exhibit instabil...
WHAM Brings Milky Way's Ionized Hydrogen into Focus
Apr 12, 2017 (SPX)
Everywhere he looked with his novel telescope, Reynolds observed the faint red glow of ionized hydrogen gas. It was the first hard evidence that vast clouds of ...
Long ago and far away, an average galaxy
Apr 12, 2017 (SPX)
"Other most distant objects are extremely bright and probably rare compared to other galaxies," said Austin Hoag, a UC Davis graduate student in physics who is ...
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