Upper Limit on the Mass of RX J1856.5-3754 as a Possible Quark Star | Zendy

Kazunori Kohri | Zendy; Kei Iida | Zendy; K. Satô | Zendy

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Upper Limit on the Mass of RX J1856.5-3754 as a Possible Quark Star

Author(s) -

Kazunori Kohri,

Kei Iida,

K. Satô

Publication year - 2003

Publication title -

progress of theoretical physics

Language(s) - English

Resource type - Journals

eISSN - 1347-4081

pISSN - 0033-068X

DOI - 10.1143/ptp.109.765

Subject(s) - physics , radius , limit (mathematics) , star (game theory) , quark star , quark , astrophysics , stars , particle physics , strange matter , nuclear physics , mathematical analysis , computer security , mathematics , computer science

Recent deep Chandra LETG+HRC-S observations suggest the possibility that RXJ1856.5--3754 is a compact star whose radiation radius is 3.8--8.2 km. In thispaper, we systematically calculate the mass-radius relations of quark starswithin the bag model. Assuming that RX J1856.5--3754 is a pure quark star, wederive an upper limit on its mass for various sets of the bag-model parameters.Comment: 16 pages, 10 figures, to appear in Prog. Theor. Phy

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