|
Thanks, Craig
Very interesting. The name of the system OGLE-LMC-CEP0227 had me intrigued me. Lechery in astronomy? Turns out the system was detected as part of the Optical Gravitational Lensing Experiment (OGLE).
I assume they mean the mass has been calculated to an accuracy of 1%. I'm intrigued as to how they do this. Being in a binary system, the period of orbit would depend on the primary's mass but then they would have to know that as well.
I know that Cepheids are pulsating stars used as standard candles for measuring galactic and extragalactic distances. So we know the distance. A Cepheid's period of pulsation is connected to its luminosity. I wonder if the luminosity is used to determine mass as well?
Regards, Rob
|