Results 11 to 20 of about 33,277 (260)
Compact objects and the swampland [PDF]
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
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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
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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
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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
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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
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A Tolman-like Compact Model with Conformal Geometry
Entropy, 2021 In this investigation, we study a model of a charged anisotropic compact star by assuming a relationship between the metric functions arising from a conformal symmetry.
Didier Kileba Matondo, Sunil D. Maharaj
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Repeating fast radio bursts from collapses of the crust of a strange star
The Innovation, 2021 Summary: Strange stars (SSs) are compact objects made of deconfined quarks. It is hard to distinguish SSs from neutron stars as a thin crust composed of normal hadronic matter may exist and obscure the whole surface of the SS.
Jinjun Geng, Bing Li, Yongfeng Huang
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Compact Objects and Accretion Disks [PDF]
, 2001 Recent developments in the spectropolarimetric study of compact objects, specifically black holes (stellar and massive) and neutron stars are reviewed. The lectures are organized around five topics: disks, jets, outflows, neutron stars and black holes.
Blandford, Roger +5 more
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Nondetection of CHIME/Fast Radio Burst Sources with the Arecibo Observatory
The Astrophysical Journal, 2023 In this work, we present follow-up observations of two known repeating fast radio bursts (FRBs) and seven nonrepeating FRBs with complex morphology discovered with the CHIME/FRB project.
Deborah C. Good +9 more
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Compact objects in conformal nonlinear electrodynamics
European Physical Journal C: Particles and Fields, 2019 In this paper we consider a special case of vacuum nonlinear electrodynamics with a stress–energy tensor conformal to the Maxwell theory. Distinctive features of this model are the absence of a dimensional parameter for the nonlinearity description and a
I. P. Denisova +2 more
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