Testing general relativity with present and future astrophysical observations
Why is this work in the frame?
A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.
Machine scores (provisional)
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
- Teacher spread
- 0.261 · how far apart the two teachers sit on this one work
- Validation status
score_only:v0-immature-baseline· verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it
Abstract
One century after its formulation, Einstein's general relativity has made remarkable predictions and turned out to be compatible with all experimental tests. Most of these tests probe the theory in the weak-field regime, and there are theoretical and experimental reasons to believe that general relativity should be modified when gravitational fields are strong and spacetime curvature is large. The best astrophysical laboratories to probe strong-field gravity are black holes and neutron stars, whether isolated or in binary systems. We review the motivations to consider extensions of general relativity. We present a (necessarily incomplete) catalog of modified theories of gravity for which strong-field predictions have been computed and contrasted to Einstein's theory, and we summarize our current understanding of the structure and dynamics of compact objects in these theories. We discuss current bounds on modified gravity from binary pulsar and cosmological observations, and we highlight the potential of future gravitational wave measurements to inform us on the behavior of gravity in the strong-field regime.
Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.
The record
- Venue
- Classical and Quantum Gravity
- Topic
- Pulsars and Gravitational Waves Research
- Field
- Physics and Astronomy
- Canadian institutions
- McMaster UniversityPerimeter Institute
- Funders
- FP7 People: Marie-Curie ActionsSmithsonian Astrophysical ObservatoryCERNEuropean Research CouncilSan Diego Supercomputer CenterUniversity of Illinois at Urbana-ChampaignStrongCenter for Research and Development in Mathematics and ApplicationsIndustry CanadaFundação para a Ciência e a TecnologiaFundação de Amparo à Pesquisa do Estado de São PauloEuropean CommissionGovernment of CanadaDeutsche ForschungsgemeinschaftHorizon 2020 Framework ProgrammeScience and Technology Facilities CouncilInstitut Périmètre de physique théoriqueSmithsonian InstitutionMinistero dello Sviluppo EconomicoAlexander von Humboldt-StiftungYukawa Institute for Theoretical Physics, Kyoto UniversityNational Aeronautics and Space AdministrationUniversity of CambridgeNational Science Foundation
- Keywords
- PhysicsGeneral relativityTests of general relativityNeutron starTheoretical physicsGravitational waveNumerical relativityTwo-body problem in general relativityEinsteinTheory of relativityGravitationCurvatureSpacetimeGravitational fieldClassical mechanicsBinary pulsarIntroduction to the mathematics of general relativityAstrophysicsQuantum mechanicsMillisecond pulsarGeometry
- Has abstract in OpenAlex
- yes