Implications of Tachyon-Like Matter for Superdense Stars

M. S. Bhatia; L. K. Pande

doi:10.1103/PhysRevD.5.2936

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Implications of Tachyon-Like Matter for Superdense Stars

M. S. Bhatia^*

L. K. Pande

Bowie State College, Bowie, Maryland 20715

Department of Physics, Delhi University, Delhi, India

^*Research supported in part by the National Aeronautics and Space Administration (NASA-GSFC No. 27113B).

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Phys. Rev. D 5, 2936 – Published 15 June, 1972

DOI: https://doi.org/10.1103/PhysRevD.5.2936

Abstract

A new equation of state of superdense matter is proposed. It is derivable by treating superdense matter as a perfect, degenerate tachyon gas. Yet the velocity of sound in the medium, $0 \leq β^{2} < \frac{1}{2}$ , which this equation leads to, satisfies the inequality $β$ . Model calculations for superdense stars based on this equation of state are presented. By appropriately choosing a certain parameter, dynamical stability can be achieved for arbitrarily large central densities. Also, a somewhat larger than usual value for the maximum mass is obtained.

References (8)

J. A. Wheeler, in Annual Review of Astronomy and Astrophysics, edited by B. L. Goldberg (Annual Reviews, Palo Alto, Calif., 1966), Vol. 4
S. Chandrasekhar, Phys. Rev. Letters 12, 114 (1964) ibid.15, 438 (1964)
C. W. Misner and H. S. Zapolsky, Phys. Rev. Letters 12, 635 (1964)
[8]
P. K. Harrison, K. S. Thorne, M. Wakano, and J. A. Wheeler, Gravitational Theory and Gravitational Collapse (Univ. of Chicago Press, Chicago, Ill., 1964), p. 50
Omitted endnote
B. K. Harrison, Phys. Rev. 137, B1644 (1965)
E. C. G. Sudarshan, Arkiv Fysik 39, 585 (1969) O. M. P. Bilaniuk, V. K. Deshpande, and E. C. G. Sudarshan, Am. J. Phys. 30, 718 (1962)

[c1] J. A. Wheeler, in Annual Review of Astronomy and Astrophysics, edited by B. L. Goldberg (Annual Reviews, Palo Alto, Calif., 1966), Vol. 4

[c2] S. Chandrasekhar, Phys. Rev. Letters 12, 114 (1964) ibid.15, 438 (1964)

[c3] C. W. Misner and H. S. Zapolsky, Phys. Rev. Letters 12, 635 (1964)

[c4] [8]

[c5] P. K. Harrison, K. S. Thorne, M. Wakano, and J. A. Wheeler, Gravitational Theory and Gravitational Collapse (Univ. of Chicago Press, Chicago, Ill., 1964), p. 50

[c6] Omitted endnote

[c7] B. K. Harrison, Phys. Rev. 137, B1644 (1965)

[c8] E. C. G. Sudarshan, Arkiv Fysik 39, 585 (1969) O. M. P. Bilaniuk, V. K. Deshpande, and E. C. G. Sudarshan, Am. J. Phys. 30, 718 (1962)

Physical Review D

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Implications of Tachyon-Like Matter for Superdense Stars

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References (8)

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