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Title: A G main-sequence star and an unseen companion star are orbiting each other in a binary system? Post by: tonyekwe on Nov 4, 2013 A G main-sequence star and an unseen companion star are orbiting each other in a binary system ("unseen" means that the companion is much fainter than the G star, so it cannot be seen next to the brighter G star). By measuring the velocity of the G main-sequence star and the period of its orbit, you estimate that the combined mass of the two stars is 5 solar masses. The unseen companion is probably a
A) neutron star B) red giant C) white dwarf D) O main sequence star E) black hole Title: Re: A G main-sequence star and an unseen companion star are orbiting each other in a binary system? Post by: ytzak on Apr 25, 2014 White dwarf
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