Michael Bradley

Study various aspects of general relativity, e.g., perturbation theory in cosmology and the gravitational field inside and outside rotating stars.

Research qualifications: Docent

Contact

michael.bradley@umu.se

+46 90 786 77 17

Works as

Professor at Department of Physics

Fysikhuset plan 4, Linnaeus väg 24, 4-0421 Umeå universitet, 901 87 Umeå

Perturbations of a class of locally rotationally symmetric cosmologies with applications to dissipative fluids

Classical and quantum gravity, Institute of Physics Publishing (IOPP) 2022, Vol. 39, (23)

Semrén, Philip; Bradley, Michael

General perfect fluid perturbations of homogeneous and orthogonal locally rotationally symmetric class II cosmologies

Physical Review D. Particles and fields, American Physical Society 2019, Vol. 100

Törnkvist, Robin; Bradley, Michael

Gravitational Waves in Locally Rotationally Symmetric (LRS) Class II Cosmologies

Universe, Vol. 3, (4)

Bradley, Michael; Forsberg, Mats; Keresztes, Zoltán

Perturbations of Kantowski-Sachs models

Proceedings of the thirteenth Marcel Grossman meeting on general relativity, Singapore: World Scientific 2015 : 2547-2549

Bradley, Michael; Forsberg, Mats; Keresztes, Zoltán; et al.

Gravitational, shear and matter waves in Kantowski-Sachs cosmologies

Journal of Cosmology and Astroparticle Physics, Institute of Physics (IOP) 2015, (11)

Keresztes, Zoltán; Forsberg, Mats; Bradley, Michael; et al.

Symmetry analysis of radiative spacetimes with a null isotropy using GHP formalism

General Relativity and Gravitation, Springer 2014, Vol. 46, (10) : 1797-

Edgar, S Brian; Bradley, Michael; Machado Ramos, M Piedade

Perturbations of Kantowski-Sachs Models with a Cosmological Constant

Progress in Mathematical Relativity, Gravitation and Cosmology: Proceedings, Spanish Relativity Meeting ERE2012, University of Minho, Guimarães, Portugal, September 3-7, 2012, Heidelberg: Springer Berlin/Heidelberg 2014 : 289-293

Keresztes, Zoltán; Forsberg, Mats; Bradley, Michael; et al.

Density growth in Kantowski-Sachs cosmologies with cosmological constant

Classical and quantum gravity, Bristol: Institute of Physics (IOP) 2012, Vol. 29, (9) : 095023-

Bradley, Michael; Dunsby, Peter K S; Forsberg, Mats; et al.

Classification of a class of conformally flat pure radiation metrics with cosmological constant

TOWARDS NEW PARADIGMS: PROCEEDING OF THE SPANISH RELATIVITY MEETING 2011, American Institute of Physics (AIP) 2012 : 331-334

Bradley, Michael; Edgar, S. B.; Machado Ramos, M. P.

The quadrupole moment of slowly rotating stars

Proceedings of the twelfth Marcel Grossman meeting on general relativity, Singapore: World Scientific 2012 : 1883-1886

Bradley, Michael; Fodor, Gyula

Density perturbations in Kantowski-Sachs models with a cosmological constant

Spanish Relativity Meeting (ERE 2010): Gravity as a Crossroad in Physics

Forsberg, Mats; Bradley, Michael; Dunsby, Peter K.S.

Invariant classification and the generalised invariant formalism: conformally flat pure radiation metrics

General Relativity and Gravitation, Springer Netherlands 2010, Vol. 42, (1) : 155-182

Bradley, Michael; Edgar, S. Brian; Ramos, M.P. Machado

The quadrupole moment of slowly rotating stars

IOPScience 2010

Bradley, Michael; Fodor, Gyula

Invariant classification of metrics using invariant formalism

Journal of Physics: Conference Series, Volume 229, 2010: M P Machado Ramos et al 2010 J. Phys.: Conf. Ser. 229 012049

Machado Ramos, Maria P; Edgar, S Brian; Bradley, Michael

Quadrupole moment of slowly rotating fluid balls

Physical Review D. Particles and fields, Vol. 79, (4) : 044018-1-044018-13

Bradley, Michael; Fodor, Gyula

Slowly and rigidly rotating perfect fluid balls of Petrov type D

Proceedings of the Eleventh Marcel Grossmann Meeting on General Relativity : 795-806

Bradley, Michael; Eriksson, Daniel; Fodor, Gyula; et al.

Slowly rotating fluid balls of Petrov type D

Physical Review D. Particles and fields, Vol. 75, (2) : 024013-024026

Bradley, Michael; Eriksson, Daniel; Fodor, Gyula; et al.

Some results on rotating fluid balls of Petrov type D

Journal of Physics: Conference Series 66: XXIXTH Spanish Relativity Meeting (ERE 2006) : 012010-

Bradley, Michael; Eriksson, Daniel; Fodor, Gyula; et al.

Tilted cosmological models of Bianchi type V

Physical Review D. Particles and fields, Vol. 73, (4) : 044008-044019

Bradley, Michael; Eriksson, Daniel

Rotating cosmological models of Bianchi type V

Proceedings of the tenth Marcel Grossmann meeting on General Relativity : 1957-1959

Bradley, Michael; Eriksson, Daniel

Rotating Cosmological Models of Bianchi-type V - first results

Relativity Today: Proceedings of Seventh Hungarian Relativity Workshop : 143-156

Bradley, Michael; Eriksson, Daniel

Nonlinear coupled Alfvén and gravitational waves

Physical Review D, Vol. 70, (4) : 044014-

Källberg, A.; Brodin, Gert; Bradley, Michael

Parametric excitation of Alfvén waves by gravitational radiation

Physical review. E, American Physical Society 2000, Vol. 62 : 8493-8500

Servin, Martin; Brodin, Gert; Bradley, Michael; et al.

The near equilibrium Einstein-Boltzmann system with a simplified collision term

Semrén, Philip; Bradley, Michael; Oliveira, João M. S.; et al.

View publications in DiVA

Research groups

Head of research

General Relativity