 Such a scenario might occur following mass loss of in a luminous blue variable eruption, or through pulsational pair instability ejections.Denis Leahy and Rachid Ouyed, Canadian scientists from the University of Calgary, have proposed that SN 2006gy was the birth of a quark star.Eta Carinae (η Carinae or η Car) is a highly luminous hypergiant star located approximately 7,500 light-years from Earth in the Milky Way galaxy.