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dc.date.accessioned2017-08-15T13:18:59Z
dc.date.available2017-08-15T13:18:59Z
dc.date.created2014-05-11T00:38:01Z
dc.date.issued2014
dc.identifier.citationLlinares, Claudio Mota, David . Cosmological simulations of screened modified gravity out of the static approximation: Effects on matter distribution. Physical Review D. 2014, 89(8)
dc.identifier.urihttp://hdl.handle.net/10852/57056
dc.description.abstractIn the context of scalar tensor theories for gravity, there is a universally adopted hypothesis when running N-body simulations that time derivatives in the equation of motion for the scalar field are negligible. In this work we propose to test this assumption for one specific scalar-tensor model with a gravity screening mechanism: the symmetron. To this end, we implemented the necessary modifications to include the nonstatic terms in the N-body code Ramses. We present test cases and results from cosmological simulations. Our main finding when comparing static vs nonstatic simulations is that the global power spectrum is only slightly modified when taking into account the inclusion of nonstatic terms. On the contrary, we find that the calculation of the local power spectrum gives different measurements. Such results imply one must be careful when assuming the quasistatic approximation when investigating the environmental effects of modified gravity and screening mechanisms in structure formation of halos and voids distributions. © 2014 American Physical Societyen_US
dc.languageEN
dc.publisherAmerican Physical Society
dc.titleCosmological simulations of screened modified gravity out of the static approximation: Effects on matter distributionen_US
dc.typeJournal articleen_US
dc.creator.authorLlinares, Claudio
dc.creator.authorMota, David
cristin.unitcode185,15,3,0
cristin.unitnameInstitutt for teoretisk astrofysikk
cristin.ispublishedtrue
cristin.fulltextoriginal
cristin.qualitycode1
dc.identifier.cristin1132161
dc.identifier.bibliographiccitationinfo:ofi/fmt:kev:mtx:ctx&ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Physical Review D&rft.volume=89&rft.spage=&rft.date=2014
dc.identifier.jtitlePhysical Review D
dc.identifier.volume89
dc.identifier.issue8
dc.identifier.pagecount12
dc.identifier.doihttp://dx.doi.org/10.1103/PhysRevD.89.084023
dc.identifier.urnURN:NBN:no-59763
dc.type.documentTidsskriftartikkelen_US
dc.type.peerreviewedPeer reviewed
dc.source.issn1550-7998
dc.identifier.fulltextFulltext https://www.duo.uio.no/bitstream/handle/10852/57056/1/PhysRevD.89.084023.pdf
dc.type.versionPublishedVersion
cristin.articleid084023


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