A new extragalactic distance determination method using the flux-weighted gravity of late B and early A supergiants


Stellar evolution calculations predict the flux-weighted gravity g/T 4 eff and absolute bolometric magnitude of blue supergiants to be strongly correlated. We use medium resolution multi-object spectroscopy of late B and early A supergiants in two spiral galaxies, NGC 300 and NGC 3621, to demonstrate the existence of such a relationship, which proves to be… (More)

4 Figures and Tables


  • Presentations referencing similar topics