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Astronomers Create First Detailed Images Of Surface Of Giant Star（图）
Astronomers Create First Detailed Surface Of Giant Star
2018/2/1
An international team of astronomers has produced the first detailed images of the surface of a giant star outside our solar system, revealing a nearly circular, dust-free atmosphere with complex area...
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...
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...
Young binary star system may form planets with weird and wild orbits
Young binary star system planets with weird wild orbits
2014/8/14
Unlike our solitary Sun, most stars form in binary pairs -- two stars that orbit a common center of mass. Though remarkably plentiful, binaries pose a number of questions, including how and where plan...
‘Upside-down planet’ reveals new method for studying binary star systems
Upside-down planet reveals new method studying binary star systems
2014/5/13
What looked at first like a sort of upside-down planet has instead revealed a new method for studying binary star systems, discovered by a University of Washington student astronomer.
We analyse the chromospherical activity of stars with extrasolar planets and search for a possible correlation between the equivalent width of the core of Ca II K line and orbital parameters of the pl...
Hipparcos Variable Star Detection and Classification Efficiency
Variable Star Detection Classification Efficiency
2011/10/11
A complete periodic star extraction and classification scheme is set up and tested with the Hipparcos catalogue. The efficiency of each step is derived by comparing the results with prior knowledge co...
The Two-Component Radio Luminosity Function of QSOs: Star Formation and AGN
The Two-Component Luminosity Function Star Formation AGN
2011/10/11
Despite decades of study, it remains unclear whether there are distinct radio-loud and radio-quiet populations of quasi-stellar objects (QSOs). Early studies were limited by inhomogeneous QSO samples,...
Monte Carlo simulations of neutron-rich matter of relevance to the inner neutron-star crust are performed for a system of A=5,000 nucleons. To determine the proton fraction in the inner crust, numeric...
A mission to study the Sun in greater detail than ever before has been launched today from Cape Canaveral, Florida. NASA's $850m Solar Dynamics Laboratory (SDO) will use a suite of extremely sensitive...
Planet 51 Star Brings NASA's Message of Exploration Down to Earth
Planet 51 Star NASA's Message Exploration Earth
2009/11/24
Actor Dwayne Johnson, usually known for his action and comedic film roles, takes to the stars as an astronaut in a new animated feature that brings important messages about the importance of space exp...
The Status of Speckle Imaging in Binary Star Research
Speckle Imaging Binary Star Research
2009/6/30
The Status of Speckle Imaging in Binary Star Research。
Variation of Central Star Masses in Planetary Nebulae with Height above the Galactic Plane
Central Star Masses Planetary Nebulae Galactic Plane
2009/6/18
Variation of Central Star Masses in Planetary Nebulae with Height above the Galactic Plane。
Line Identification of the Si Star HD 87240。