Web15 de mar. de 2024 · The observed massive neutron star with gravitation mass of ≈ 2 M ⊙ have imposed strong constraints on the EOS of super-dense matter. The upper limit of the speed of sound, as a crucial quantity to characterize the stiffness of the EOS, has significant influence on the maximum mass of a neutron star. Web10 de mai. de 2024 · (2), with a variable speed of sound v s. We shall adopt the notation of [66] for our study. The causal limit EoS we shall use in this paper is, (5) P s n (ρ) = P u (ρ u) + (ρ − ρ u) v s 2, and although there exist a conjecture that the sound speed should be less than c / 3 [66], we shall assume that the sound speed is in the range c 2 / 3 ...
A General, Scale-independent Description of the Sound Speed in …
Web10 de nov. de 2024 · Top: PDF of the mass-radius relation. The orange contour encloses EOSs with subconformal sound speed (see Figure 1). The dashed black line reports the lower bound for the radii as computed … Web28 de mar. de 2024 · Determining the sound speed c s in compact stars is an important open question with numerous implications on the behavior of matter at large densities … high blood pressure treatment options
Bounds on the speed of sound in dense matter, and neutron star …
Web2 de nov. de 2024 · Mass vs. radius for an isolated neutron star, for the two cases of speed of sound. The green (red) lines correspond to the upper (lower) bound. The purple diagonal shaded region corresponds to NICER's observation (data taken from Ref. [ 50 ]), while the blue upper (orange lower) shaded region corresponds to the higher (smaller) component … WebOn the Sound Speed in Neutron Stars Sinan Altiparmak, 1Christian Ecker, and Luciano Rezzolla1,2,3 1Institut f¨ur Theoretische Physik, Goethe Universit ¨at, Max-von-Laue-Str. … Web12 de out. de 2024 · In contrast, radio observations of PSR J0740+6620 find a very massive neutron star. Tension between the small deformability and the large maximum mass may suggest that the pressure rises rapidly with density and thus the speed of sound in dense matter is likely a large fraction of the speed of light. high blood pressure treatment in home