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STAR国际合作组首次测量到超子的整体极化效应
STAR 超子 整体极化效应
2017/8/23
最近，由中国科学技术大学学者在内的中国科学家参加的美国布鲁克海文国家实验室STAR国际合作组在重离子碰撞中首次观测到了夸克胶子等离子体（QGP）的“整体极化”（global polarization），发现碰撞产生的Lambda超子相对于碰撞反应平面存在明显的自旋极化。STAR国际合作组的该研究成果于8月3日作为封面文章发表在《自然》杂志上【Nature 548, 62-65 (2017)】。在这...
Star’s Birth May Have Triggered Another Star Birth,Astronomers Say
Star’s Birth Another Star Birth Astronomers Say
2017/7/24
Astronomers using the National Science Foundation’s Karl G. Jansky Very Large Array (VLA) have found new evidence suggesting that a jet of fast-moving material ejected from one young star may have tri...
ALMA returns to Boomerang Nebula:Companion star provides chilling power of 'Coldest Object in the Universe'
ALMA Boomerang Nebula Companion star chilling power Coldest Object in the Universe
2017/7/21
An ancient, red giant star in the throes of a frigid death has produced the coldest known object in the cosmos — the Boomerang Nebula. How this star was able to create an environment strikingly colder...
Gemini Tracks Distant Star Cluster with Adaptive Optics
Gemini Distant Star Cluster Adaptive Optics
2017/7/20
We present a proper motion measurement for the halo globular cluster Pyxis, using HST/ACS data as the first epoch, and GeMS/GSAOI Adaptive Optics data as the second, separated by a baseline of ～ 5 yea...
UMass Amherst Astronomers Find Unexpected,Dust-obscured Star Formation in Normal Distant Galaxy
UMass Amherst Astronomers Dust-obscured Star Formation Normal Distant Galaxy
2017/3/30
Pushing the limits of the largest single-aperture millimeter telescope in the world, and coupling it with gravitational lensing, University of Massachusetts Amherst astronomer Alexandra Pope and colle...
Black-Hole-Powered Jets Forge Fuel for Star Formation
Black-Hole-Powered Jets Forge Fuel Star Formation
2017/3/13
Astronomers using the Atacama Large Millimeter/submillimeter Array (ALMA) have discovered a surprising connection between a supermassive black hole and the galaxy where it resides.Powerful radio jets ...
New delta Scuti:Rare pulsating star 7,000 light years away is 1 of only 7 in Milky Way
New delta Scuti pulsating star 7,000 light years 1 of only 7 Milky Way
2017/3/13
The star is one that pulsates and so is characterized by varying brightness over time. It’s situated 7,000 light years away from the Earth in the constellation Pegasus, said astronomer Farley Fer...
Astronomers discover dark past of planet-eating ‘Death Star’
Astronomers dark past planet-eating Death Star
2016/12/27
An international team of scientists, including researchers from the University of Chicago, has made the rare discovery of a planetary system with a host star similar to Earth’s sun. Especially intrigu...
Rings around young star suggest planet formation in progress
Rings around young star planet formati progress
2016/12/27
Rice University astronomers and their colleagues have for the first time mapped gases in three dark rings around a distant star. The rings mark spaces where planets are thought to have formed from dus...
OU-led team discovers rare,newborn tri-star system using ALMA
OU-led team newborn tri-star system ALMA
2016/11/4
A rare triple-star system surrounded by a disk with a spiral structure has been discovered by a University of Oklahoma-led research team. Recent observations from the Atacama Large Millimeter/submilli...
Our galaxy's most mysterious star is even stranger than astronomers thought
Our galaxy mysterious star astronomers
2016/10/10
A star known by the unassuming name of KIC 8462852 in the constellation Cygnus has been raising eyebrows both in and outside of the scientific community for the past year. In 2015 a team of astronomer...
Dormant Black Hole Eats Star,Becomes X-Ray Beacon
Dormant Black Hole Eats Star X-Ray Beacon
2016/7/4
Roughly 90 percent of the biggest black holes in the known universe are dormant, meaning that they are not actively devouring matter and, consequently, not giving off any light or other radiation. But...
In contradiction to the long-standing idea that larger planets take longer to form, U.S. astronomers today announced the discovery of a giant planet in close orbit around a star so young that it still...
Nearby massive star explosion 30 million years ago equaled detonation of 100 million suns
massive star explosion 30 million years ago detonation of 100 million suns
2016/5/6
A giant star that exploded 30 million years ago in a galaxy near Earth had a radius prior to going supernova that was 200 times larger than our sun, according to astrophysicists at Southern Methodist ...
Planet Formation in Earth-like Orbit around a Young Star
Planet Formation Earth Young Star
2016/4/13
The disks of dust and gas that surround young stars are the formation sites of planets. New images from the Atacama Large Millimeter/submillimeter Array (ALMA) reveal never-before-seen detai...