STUCHLÍK, Zdeněk, Martin URBANEC a John MILLER. Quadrupole moments of rotating neutron stars and strange stars. Monthly Notices of the Royal Astronomical Society. GB - Spojené království Velké Británie a, 2013, roč. 433, č. 3, s. 1903-1910, 7 s. ISSN 0035-8711. Dostupné z: https://dx.doi.org/10.1093/mnras/stt858. |
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@article{43070, author = {Stuchlík, Zdeněk and Urbanec, Martin and Miller, John}, article_location = {GB - Spojené království Velké Británie a}, article_number = {3}, doi = {http://dx.doi.org/10.1093/mnras/stt858}, keywords = {stars: neutron; stars: rotation}, language = {eng}, issn = {0035-8711}, journal = {Monthly Notices of the Royal Astronomical Society}, title = {Quadrupole moments of rotating neutron stars and strange stars}, url = {http://mnras.oxfordjournals.org/content/433/3/1903}, volume = {433}, year = {2013} }
TY - JOUR ID - 43070 AU - Stuchlík, Zdeněk - Urbanec, Martin - Miller, John PY - 2013 TI - Quadrupole moments of rotating neutron stars and strange stars JF - Monthly Notices of the Royal Astronomical Society VL - 433 IS - 3 SP - 1903-1910 EP - 1903-1910 SN - 00358711 KW - stars: neutron KW - stars: rotation UR - http://mnras.oxfordjournals.org/content/433/3/1903 N2 - We present results for models of neutron stars and strange stars constructed using the Hartle-Thorne slow-rotation method with a wide range of equations of state, focusing on the values obtained for the angular momentum J and the quadrupole moment Q, when the gravitational mass M and the rotational frequency are specified. Building on previous work, which showed surprising uniformity in the behaviour of the moment of inertia for neutron-star models constructed with widely different equations of state, we find similar uniformity for the quadrupole moment. These two quantities, together with the mass, are fundamental for determining the vacuum space-time outside neutron stars. We study particularly the dimensionless combination of parameters QM/J(2) (using units for which c = G = 1). This quantity goes to 1 in the case of a Kerr-metric black hole and deviations away from 1 then characterize the difference between neutron-star and black hole space-time. It is found that QM/J(2) for both n ER -
STUCHLÍK, Zdeněk, Martin URBANEC a John MILLER. Quadrupole moments of rotating neutron stars and strange stars. \textit{Monthly Notices of the Royal Astronomical Society}. GB - Spojené království Velké Británie a, 2013, roč.~433, č.~3, s.~1903-1910, 7 s. ISSN~0035-8711. Dostupné z: https://dx.doi.org/10.1093/mnras/stt858.
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