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Galactic Rotation Curves and Strange Quark Matter with Observational Constraints

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Abstract

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.

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Acknowledgments

MK and FR gratefully acknowledge support from the Inter-University Centre for Astronomy and Astrophysics(IUCAA), Pune, India under Visiting Associateship programme under which a part of this work was carried out.SMH is also thankful to IUCAA for giving him an opportunity to visit IUCAA where a part of this work was carried out. FR is personally thankful to PURSE,DST and UGC for providing financial support.

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Authors and Affiliations

  1. Department of Physics, Aliah University, Sector-V, Salt Lake, Kolkata, 700091, India

    M. Kalam & J. Naskar

  2. Department of Mathematics, Jadavpur University, Kolkata, 700 032, India

    F. Rahaman

  3. Department of Mathematics, Aliah University, Sector-V, Salt Lake, Kolkata, 700091, India

    Sk. M. Hossein

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  1. M. Kalam
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  2. F. Rahaman
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  3. Sk. M. Hossein
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  4. J. Naskar
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Correspondence to F. Rahaman.

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Kalam, M., Rahaman, F., Hossein, S.M. et al. Galactic Rotation Curves and Strange Quark Matter with Observational Constraints. Int J Theor Phys 54, 1661–1670 (2015). https://doi.org/10.1007/s10773-014-2367-3

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  • DOI: https://doi.org/10.1007/s10773-014-2367-3

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