A solution to the puzzling symbiotic X-ray system 4U 1700+24

  title={A solution to the puzzling symbiotic X-ray system 4U 1700+24},
  author={Renxin Xu},
  journal={Research in Astronomy and Astrophysics},
  pages={617 - 624}
  • R. Xu
  • Published 6 February 2014
  • Physics
  • Research in Astronomy and Astrophysics
A circumstellar corona is proposed to explain a strange quark-cluster star during an accretion phase, which could be essential for understanding the observations of the puzzling symbiotic X-ray system 4U 1700+24. The state of cold matter at supranuclear density is still an important matter of debate, and one of the consequences of a strange star acting as a pulsar is the self-bound phenomenon on the surface, which makes extremely low-mass compact objects unavoidable. In principle, both the… 

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  • R. Xu
  • Physics
  • 2019
Strangeon is proposed to be the constituent of bulk strong matter, as an analogy of nucleon for an atomic nucleus. The nature of both nucleon matter (2 quark flavors, u and d) and strangeon matter (3

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  • R. Xu
  • Physics, Geology
  • 2003
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  • X. LaiR. Xu
  • Physics
    Proceedings of the International Astronomical Union
  • 2012
Abstract The study of dense matter at ultra-high density has a very long history, which is meaningful for us to understand not only cosmic events in extreme circumstances but also fundamental laws of

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The conjecture that ultra-high-energy cosmic rays (UHECRs) are actually strangelets is discussed. Besides the reason that strangelets can do as cosmic rays beyond the Greisen-Zatsepin-Kuzmin-cutoff,