Hi everybody(adsbygoogle = window.adsbygoogle || []).push({});

When you have observed the complete revolution of a star around an other one, you can derive the mass of the double star system (the sum of the masses) by using the Kepler's third law. That's OK.

I have heard that you can find the mass ratio of the system by using spectroscopy. Then, with the sum and the ratio, you can derive each mass separately.

My question is : how can we determine the mass ratio with spectroscopy ?

Kind regards

Jeff

**Physics Forums | Science Articles, Homework Help, Discussion**

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Mass of doubles stars

Loading...

Similar Threads for Mass doubles stars |
---|

I Relationship between stellar mass and core mass? |

B Calculating Weight and mass of entire black hole |

I The Explanation for the Mass-Luminosity Relation |

I Chadrasekhar mass |

I New White Dwarf Mass Limit |

**Physics Forums | Science Articles, Homework Help, Discussion**