Neutron-star oscillation

Asteroseismology studies the internal structure of the Sun and other stars using oscillations. These can be studied by interpreting the temporal frequency spectrum acquired through observations.[1] In the same way, the more extreme neutron stars might be studied and hopefully give us a better understanding of neutron-star interiors, and help in determining the equation of state for matter at nuclear densities. Scientists also hope to prove, or discard, the existence of so-called quark stars, or strange stars, through these studies.[2] Fundamental information can be obtained of the General Relativity Theory by observing the gravitational radiation from oscillating neutron stars.[3]

Comparison between predicted frequencies in a totally fluid, and in a three-component neutron-star model.
McDermott, P. N. (1985). "The nonradial oscillation spectra of neutron stars". The Astrophysical Journal. 297: L37. Bibcode:1985ApJ...297L..37M. doi:10.1086/184553.; Reproduced by permission[citation needed] of the American Astronomical Society
  1. ^ M. Cunha; et al. (2007). "Asteroseismology and interferometry". Astronomy and Astrophysics Review. 14 (3–4): 217–360. arXiv:0709.4613. Bibcode:2007A&ARv..14..217C. doi:10.1007/s00159-007-0007-0. S2CID 16590095.
  2. ^ Zheng, Xiaoping; Pan, Nana; Zhang, Li; Baglin, A.; Bigot, L.; Brown, T. M.; Catala, C.; Creevey, O. L.; Domiciano de Souza, A.; Eggenberger, P.; Garcia, P. J. V.; Grundahl, F.; Kervella, P.; Kurtz, D. W.; Mathias, P.; Miglio, A.; Monteiro, M. J. P. F. G.; Perrin, G.; Pijpers, F. P.; Pourbaix, D.; Quirrenbach, A.; Rousselet-Perraut, K.; Teixeira, T. C.; Thevenin, F.; Thompson, M. J. (2007). "1122 Hz rotation of XTE J1739-285 as a probe of quark matter in the interior of the neutron star". arXiv:0712.4310. Bibcode:2007arXiv0712.4310Z. {{cite journal}}: Cite journal requires |journal= (help)
  3. ^ Benhar, Omar; Berti, Emanuele; Ferrari, Valeria (1999-12-11). "The imprint of the equation of state on the axial w-modes of oscillating neutron stars". Monthly Notices of the Royal Astronomical Society. 310 (3): 797–803. arXiv:gr-qc/9901037. Bibcode:1999MNRAS.310..797B. doi:10.1046/j.1365-8711.1999.02983.x. ISSN 0035-8711. S2CID 12005656.