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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
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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...
PHENOMENOLOGICAL APPROACH TO THE MODELLING OF ELLIPTICAL GALAXIES: THE PROBLEM OF THE MASS-TO-LIGHT RATIO
galaxies kinematics and dynamics-galaxies elliptical and lenticular-galaxies structure-dark matter-galaxies
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2009/2/13
In this paper the problem of the phenomenological modelling of
elliptical galaxies using various available observational data is presented. Recently,
Tortora, Cardona and Piedipalumbo (2007) suggest...