Why do Most Stellar Mass Black Holes have Masses Around Seven Solar Masses?

  • W. M. Zhang
  • S. N. Zhang
  • R. X. Xu
Conference paper
Part of the Astrophysics and Space Science Library book series (ASSL, volume 298)


Currently most of known stellar mass black holes have masses around seven solar masses, far exceeding the mass upper limit for a neutron star, which is around three solar masses. The LC equivalent potential is too small compare to strong interaction potential, so that gravity is usually ignored inside a strange star. We use the MIT bag model of quark matter, and assume the density in the bare strange star is a constant. We consider the scenario in which the mass of the strange star grows until its last stable orbit exceeds its radius. At this point the gravity inside the strange star becomes important and the strange star will quickly collapse into a black hole when it spins down.


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Copyright information

© Springer Science+Business Media Dordrecht 2003

Authors and Affiliations

  • W. M. Zhang
    • 1
  • S. N. Zhang
    • 1
    • 2
    • 3
    • 4
  • R. X. Xu
    • 5
  1. 1.Tsinghua Center for AstrophysicsTsinghua UniversityBeijingChina
  2. 2.Physics DepartmentUniversity of Alabama in HuntsvilleHuntsvilleUSA
  3. 3.Space Science LaboratoryNASA Marshall Space Flight Center, SD50HuntsvilleUSA
  4. 4.Institute of High Energy PhysicsChinese Academy of SciencesBeijingChina
  5. 5.School of PhysicsPeking universityBeijingChina

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