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Chemical trail on Titan may be key to prebiotic conditions
Chemical trail Titan prebiotic conditions
2016/7/15
NASA’s Cassini and Huygens missions have provided a wealth of data about chemical elements found on Saturn’s moon Titan, and Cornell scientists have uncovered a chemical trail that suggests prebiotic ...
When certain massive stars use up all of their fuel and collapse onto their cores, explosions 10 to 100 times brighter than the average supernova occur. Exactly how this happens is not well understood...
The Chemical Evolution of Narrow Emission Line Galaxies: the Key to their Formation Processes
galaxy: activity galaxy: formation galaxy: chemical evolution
2011/10/20
Using the largest sample of narrow emission line galaxies available so far, we show that their spectral characteristics are correlated with different physical parameters, like the chemical abundances,...
Ultraviolet Coronagraph Spectroscopy: A Key Capability for Understanding the Physics of Solar Wind Acceleration
Ultraviolet Coronagraph Spectroscopy Physics of Solar Wind Acceleration
2010/11/15
Understanding the physical processes responsible for accelerating the solar wind requires detailed measurements of the collisionless plasma in the extended solar corona. Some key clues about these pro...
The thermally-unstable warm neutral medium: key for modeling the interstellar medium
Galaxy Astrophysics (astro-ph.GA)
2011/1/6
We present 21-cm absorption measurements towards 12 radio continuum sources with previously identified thermally-unstable warm neutral medium (WNM). These observations were obtained with the Expanded ...
Special relativity passes key test（图）
special relativity quantum gravity distant gamma-ray
2009/11/4
Scientists studying radiation from a distant gamma-ray burst have found that the speed of light does not vary with wavelength down to distance scales below that of the Planck length. They say that thi...
Rx j0513.9-6951 and v sagittae：accretion wind evolution, a Key evolutionary process to type IA supernovae
Rx j0513.9-6951 v sagittae IA supernovae
2009/6/17
Rx j0513.9-6951 and v sagittae：accretion wind evolution, a Key evolutionary process to type IA supernovae。
OTELO：a proposal for a GTC Key Project
ASTRONOMICAL DATA BASES SURVEYS COSMOLOGY: OBSERVATIONS
2009/6/11
OTELO：a proposal for a GTC Key Project。