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VLBA Measurement Promises Complete Picture of Milky Way（图）
VLBA Measurement Complete Picture Milky Way
2017/10/26
Astronomers using the National Science Foundation’s Very Long Baseline Array (VLBA) have directly measured the distance to a star-forming region on the opposite side of our Milky Way Galaxy from the S...
Measurement of Galactic Logarithmic Spiral Arm Pitch Angle Using Two-Dimensional Fast Fourier Transform Decomposition
Galactic Logarithmic Spiral Arm Pitch Angle Two-Dimensional Fast Fourier Transform Decomposition
2012/2/23
A logarithmic spiral is a prominent feature appearing in a majority of observed galaxies. This feature has long been associated with the traditional Hubble classification scheme, but historical quotes...
Measurement of cosmic-ray antiproton spectrum at solar minimum with a long-duration balloon flight in Antarctica
Measurement cosmic-ray antiproton spectrum solar minimum long-duration balloon
2011/10/18
The energy spectrum of cosmic-ray antiprotons has been measured in the range 0.17 to 3.5 GeV, based on 7886 antiprotons collected by the BESS-Polar II instrument during a long-duration flight over Ant...
Diffuse emission measurement with INTEGRAL/SPI as indirect probe of cosmic-ray electrons and positrons
INTEGRAL/SPI indirect probe cosmic-ray electrons positrons
2011/9/26
Significant advances have been made in the understanding of the diffuse Galactic hard X-ray continuum emission using data from the INTEGRAL observatory. The diffuse hard power-law component seen with ...