Results 11 to 20 of about 474,897 (288)
Casimir forces between arbitrary compact objects [PDF]
Physical Review Letters, 2007 We develop an exact method for computing the Casimir energy between arbitrary compact objects, either dielectrics or perfect conductors. The energy is obtained as an interaction between multipoles, generated by quantum current fluctuations.
E. M. Lifshitz +8 more
core +4 more sources
Relativistic Compact Objects in Isotropic Coordinates [PDF]
Pramana, 2005 We present a matrix method for obtaining new classes of exact solutions for Einstein's equations representing static perfect fluid spheres. By means of a matrix transformation, we reduce Einstein's equations to two independent Riccati type differential ...
C G Boehmer +17 more
core +3 more sources
A nearby long gamma-ray burst from a merger of compact objects. [PDF]
Nature, 2022 Troja E +23 more
europepmc +2 more sources
Compact objects in entangled relativity [PDF]
Physical Review D, 2021 We describe the first numerical Tolman-Oppenheimer-Volkoff solutions of compact objects in entangled relativity, which is an alternative to the framework of general relativity that does not have any additional free parameter. Assuming a simple polytropic equation of state and the conservation of the rest-mass density, we notably show that, for any ...
Denis Arruga +2 more
openaire +3 more sources
Rates of compact object coalescences [PDF]
Living Reviews in Relativity, 2022 AbstractGravitational-wave detections are enabling measurements of the rate of coalescences of binaries composed of two compact objects—neutron stars and/or black holes. The coalescence rate of binaries containing neutron stars is further constrained by electromagnetic observations, including Galactic radio binary pulsars and short gamma-ray bursts ...
Ilya Mandel, Floor S. Broekgaarden
openaire +2 more sources
On thermodynamics of compact objects
Classical and Quantum Gravity, 2023 Abstract With the recent progress in observations of astrophysical black holes, it has become more important to understand in detail the physics of strongly gravitating horizonless objects. If the objects identified in the observations are indeed horizonless and ultracompact, high curvature effects may become important, and their ...
Ufuk Aydemir, Jing Ren
openaire +4 more sources
The Astrophysical Journal, 2023 Recent simulations find that hot gas accretion onto compact accretors is often highly turbulent and diskless, and shows a power-law density profile with slope α _ρ ≈ −1.
Wenrui Xu
doaj +1 more source
Formation of double compact objects [PDF]
Physics Reports, 2007 55 pages, 16 figures, to appear in the Bethe Centennial Volume of Physics Reports, eds. G. E. Brown, V. Kalogera, E.P.J.
Kalogera, V. +4 more
openaire +2 more sources
Measuring Mass and Radius of the Maximum-mass Nonrotating Neutron Star
The Astrophysical Journal, 2023 The mass ( M _TOV ) and radius ( R _TOV ) of the maximum-mass nonrotating neutron star (NS) play a crucial role in constraining the elusive equation of state of cold dense matter and in predicting the fate of remnants from binary neutron star (BNS ...
Shao-Peng Tang +4 more
doaj +1 more source
Compact objects and the swampland
Journal of High Energy Physics, 2019 Recently, two simple criteria were proposed to assess if vacua emerging from an effective scalar field theory are part of the string “landscape” or “swampland”.
Carlos A. R. Herdeiro +2 more
doaj +1 more source