Abstract
We present a short general overview of the main features of exotic models of neutron stars, focusing on the structural and dynamical predictions derived from them. In particular, we discuss the presence of “normal” quark matter and Color-Flavor Locked (CFL) states, including their possible self-bound versions, and mention some different proposals emerging from the study of QCD microphysics. A connection with actual observed data is the main goal to be addressed at this talk and along the meeting. It is demonstrated that exotic equations of state are not soft if the vacuum contributions are large enough, and argued that recent measurements of high pulsar masses (M≥2M ⊙) create problems for hadronic models in which hyperons should be present.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Alford, M., Reddy, S.: Phys. Rev. D 67, 070424 (2003)
Alford, M., Cowan, G.: J. Phys. G 32, 511 (2006)
Alford, M.G., Rajagopal, K., Reddy, S., et al.: Phys. Rev. D 73, 114016 (2006a)
Alford, M., Blaschke, D., Drago, A., et al.: astro-ph/0606524 (2006b)
Bailin, D., Love, A.: Phys. Rep. 107, 325 (1984)
Benvenuto, O.G., Horvath, J.E.: Phys. Rev. Lett. 63, 716 (1989)
Benvenuto, O.G., Horvath, J.E., Vucetich, H.: Phys. Rev. Lett. 64, 713 (1990)
Björken, J.D., McLerran, L.D.: Phys. Rev. D 20, 2353 (1979)
Bodmer, A.R.: Phys. Rev. D 4, 1601 (1971)
Chen, A., Xu, R.X.: astro-ph/0605285 (2006)
Choutko, V. (for the AMS-01 Collaboration). In: Kajita, T., Asaoka, Y., Kawachi, A., Matsubara Y., Sasaki, M. (eds.) Proceedings of the 28th International Cosmic Ray Conference, Tsukuba, Japan, 31 July–7 August, p. 1765. Universal Academic Press, Tokyo (2003)
Dai, Z.G., Peng, Q.H., Lu, T.: Astrophys. J. 440, 815 (1995)
Degrand, T., Jaffe, R.L., Johnson, K., et al.: Phys. Rev. D 12, 2060 (1975)
Delgaty, M.S.R., Lake, K.: Comput. Phys. Commun. 115, 395 (1998)
Freedman, W.L., Turner, M.S.: Rev. Mod. Phys. 75, 1433 (2003)
Gómez Dumm, D., Blaschke, D.B., Grunfeld, A.G., et al.: Phys. Rev. D 73, 114019 (2006)
Heiselberg, H., Pethick, C.J., Staubo, E.F.: Phys. Rev. Lett. 70, 1355 (1993)
Ichimura, M., Kamioka, E., Kitazawa, M., et al.: Nuovo Cimento A 106, 843 (1993)
Lugones, G., Bombaci, I.: Phys. Rev. D 72, 065021 (2005)
Lugones, G., Benvenuto, O.G., Vucetich, H.: Phys. Rev. D 50, 6100 (1994)
Lugones, G., Horvath, J.E.: Astron. Astrophys. 403, 173 (2003)
Lugones, G., Horvath, J.E.: Phys. Rev. D 66, 074017 (2002)
Madsen, J.: Phys. Rev. D 71, 014026 (2005)
Nice, D. , Splaver, E.M., Stairs, I.H., et al.: Astrophys. J. 634, 1242 (2005)
Özel, F.: Nature 441, 1115 (2006)
Ruster, S.B., Shovkovy, I.A., Rischke, D.H.: Nucl. Phys. A 743, 127 (2004)
Terazawa H.: INS-Report 336 (1979)
Val Baker, A.K., Norton, A.J., Quaintrell, H.: Astron. Astrophys. 441, 685 (2005)
van Adelsberg, M., Lai, D., Potekhin, A.Y., et al.: Astrophys. J. 628, 902 (2005)
Weber, F.: Prog. Part. Nucl. Phys. 54, 193 (2005)
Witten, E.: Phys. Rev. D 30, 272 (1984)
Author information
Authors and Affiliations
Corresponding author
Additional information
The author would like to acknowledge the financial support of CNPq (Brazil).
Rights and permissions
About this article
Cite this article
Horvath, J.E. What do exotic equations of state have to offer?. Astrophys Space Sci 308, 431–434 (2007). https://doi.org/10.1007/s10509-007-9314-1
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s10509-007-9314-1