Galactic Rotation Curves and Strange Quark Matter with Observational Constraints

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• 作者：M. Kalam (1)
  F. Rahaman (2)
  Sk. M. Hossein (3)
  J. Naskar (1)
  
  1. Department of Physics ; Aliah University ; Sector-V ; Salt Lake ; Kolkata ; 700091 ; India
  2. Department of Mathematics ; Jadavpur University ; Kolkata ; 700 032 ; India
  3. Department of Mathematics ; Aliah University ; Sector-V ; Salt Lake ; Kolkata ; 700091 ; India
  
• 关键词：Strange matter ; Galactic rotation
• 刊名：International Journal of Theoretical Physics
• 出版年：2015
• 出版时间：May 2015
• 年：2015
• 卷：54
• 期：5
• 页码：1661-1670
• 全文大小：375 KB
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• 刊物类别：Physics and Astronomy
• 刊物主题：Physics
  Physics
  Quantum Physics
  Elementary Particles and Quantum Field Theory
  Mathematical and Computational Physics
  
• 出版者：Springer Netherlands
• ISSN：1572-9575

文摘

We obtain the space time of the galactic core in the framework of general relativity by taking the flat rotational curve as input and considering the matter content in the galactic core region as strange quark matter. We also obtain the energy density, radial and tangential pressures of the core strange quark matter. Significantly we have shown that Bag Constant takes an important role to stabilize the circular orbit of the test particles. We also give a limit of the Bag constant for the existence of quark matter in the galactic halo region.