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Numerical versus analytical accuracy of the formulas for light propagation
Numerical versus analytical light propagation
2010/3/19
Numerical integration of the differential equations of light propagation in the Schwarzschild metric shows that in some situations relevant for practical observations the well-known post-Newtonian sol...
SEMI-ANALYTICAL FORMULAS FOR THE FUNDAMENTAL PARAMETERS OF GALACTIC EARLY B SUPERGIANTS
Stars: fundamental parameters Hertzsprung-Russell (HR) and C-M Stars: general
2010/10/29
The publication of new tables of calibration of some fundamental parameters of Galactic B0-B5 supergiants in the two classes Ia and Ib allows to particularize the eight parameters conjecture that mode...
SEMI-ANALYTICAL FORMULAS FOR THE HERTZSPRUNG-RUSSELL DIAGRAM
Stars fundamental parameters-Hertzsprung-Russell (HR) and C-M-Stars general
2009/2/5
The absolute visual magnitude as function of the observed color
(B-V), also named Hertzsprung-Russell diagram, can be described through ¯ve
equations; that when calibrated stars are available m...