Gravitational wave bursts induced by r-mode spin-down of hybrid stars
نویسندگان
چکیده
منابع مشابه
Gravitational wave bursts induced by r - mode spin - down of hybrid stars
We show that sudden variations in the composition and structure of an hybrid star can be triggered by its rapid spin-down, induced by r-mode instabilities. The discontinuity of this process is due to the surface tension between hadronic and quark matter and in particular to the overpressure needed to nucleate new structures of quark matter in the mixed phase. The consequent mini-collapses in th...
متن کاملCooling of Hybrid Stars with Spin Down Compression
We study the cooling of hybrid stars coupling with spin-down. Due to the spindown of hybrid stars, the interior density continuously increases, different neutrino reactions may be triggered(from the modified Urca process to the quark and nucleon direct Urca process) at different stages of evolution. We calculate the rate of neutrino emissivity of different reactions and simulate the cooling cur...
متن کاملAbout the Detection of Gravitational Wave Bursts
Supernovae have been historically the first envisaged sources of gravitational waves (GW). Although binary inspirals or even periodic GW emitters like pulsars seem to be nowadays more promising sources, impulsive sources of GW such as supernovae should also be considered in the data analysis design of interferometric detectors currently under construction (LIGO, VIRGO). Impulsive GW sources are...
متن کاملLong-term evolution and gravitational wave radiation of neutron stars with differential rotation induced by r-modes
In a second-order r-mode theory, Sá & Tomé found that the r-mode oscillation in neutron stars (NSs) could induce stellar differential rotation, which leads to a saturation state of the oscillation spontaneously. Based on a consideration of the coupling of the rmodes and the stellar spin and thermal evolutions, we carefully investigate the influences of the r-mode-induced differential rotation o...
متن کاملGravitational Wave Bursts from Tidal Disruption of Stars in the Center of Galaxies
Recent measurements of the Chandra satellite have shown that a supermassive black hole of M = 2.6× 10M⊙ is located in the Galactic Center; it seems probable that, from other observations, this fact is common in the majority of galaxies. On the other hand, GRB explosions are typical phenomenon linked to the galactic dynamics. In the present paper we discuss the possibility that GRBs are tidal di...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Astronomy & Astrophysics
سال: 2006
ISSN: 0004-6361,1432-0746
DOI: 10.1051/0004-6361:20053276