- #1
Barnak
- 63
- 0
I need to clarify something important, with the Hertzsprung-Russell diagram :
What actually is the Absolute Magnitude on the vertical axis ? **Rigorously**, is it the Visual Absolute Magnitude [tex]M_V[/tex] or is it the Bolometric Absolute Magnitude [tex]M_{bolo}[/tex] ?
Usually, we find "sloppy" H-R diagrams everywhere, which draws Luminosity (or Absolute Magn) on its vertical axis. But nowhere do they state clearly which one it is.
I'm now suspecting is should be the bolometric magnitude and Luminosity (i.e. total energy radiated away, and not just the visible part). Am I right ?
What actually is the Absolute Magnitude on the vertical axis ? **Rigorously**, is it the Visual Absolute Magnitude [tex]M_V[/tex] or is it the Bolometric Absolute Magnitude [tex]M_{bolo}[/tex] ?
Usually, we find "sloppy" H-R diagrams everywhere, which draws Luminosity (or Absolute Magn) on its vertical axis. But nowhere do they state clearly which one it is.
I'm now suspecting is should be the bolometric magnitude and Luminosity (i.e. total energy radiated away, and not just the visible part). Am I right ?