Astronomy and Astrophysics – Astrophysics
Scientific paper
2008-11-27
Serb.Astron.J.177:73-85,2008
Astronomy and Astrophysics
Astrophysics
Pages 35, Figures 13
Scientific paper
10.2298/SAJ0877073Z
The absolute visual magnitude as function of the observed colour (B-V), also named Hertzsprung-Russell diagram can be described through five equations; that in presence of calibrated stars means eight constants. The developed framework allows to deduce the remaining physical parameters that are mass, radius and luminosity. This new technique is applied to the first 10 pc, the first 50 pc, the Hyades and to the determination of the distance of a cluster. The case of the white dwarfs is analysed assuming the absence of calibrated data: our equation produces a smaller $\chi^2$ in respect to the standard colour-magnitude calibration when applied to the Villanova Catalog of Spectroscopically Identified White Dwarfs. The theoretical basis of the formulae for the colours and the bolometric correction of the stars are clarified through a Taylor expansion in the temperature of the Planck distribution.
No associations
LandOfFree
Semi-analytical formulas for the Hertzsprung-Russell Diagram does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Semi-analytical formulas for the Hertzsprung-Russell Diagram, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Semi-analytical formulas for the Hertzsprung-Russell Diagram will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-232685