Cosmology on the largest scales with the SKA

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dc.contributor.authorCamera, Stefano
dc.contributor.authorRaccanelli, Alvise
dc.contributor.authorBull, Philip
dc.contributor.authorBertacca, Daniele
dc.contributor.authorChen, Xuelei
dc.contributor.authorFerreira, Pedro G.
dc.contributor.authorKunz, Martin
dc.contributor.authorMaartens, Roy
dc.contributor.authorMao, Yi
dc.contributor.authorSantos, Mario G.
dc.contributor.authorShapiro, Paul R.
dc.contributor.authorViel, Matteo
dc.contributor.authorXug, Yidong
dc.date.accessioned2015-10-20T20:02:07Z
dc.date.available2015-10-20T20:02:07Z
dc.date.issued2014
dc.descriptionAdvancing Astrophysics with the Square Kilometre Array June 8-13, 2014 Giardini Naxos, Italyen_US
dc.description.abstractThe study of the Universe on ultra-large scales is one of the major science cases for the Square Kilometre Array (SKA). The SKA will be able to probe a vast volume of the cosmos, thus representing a unique instrument, amongst next-generation cosmological experiments, for scrutinising the Universe’s properties on the largest cosmic scales. Probing cosmic structures on extremely large scales will have many advantages. For instance, the growth of perturbations is well understood for those modes, since it falls fully within the linear régime. Also, such scales are unaffected by the poorly understood feedback of baryonic physics. On ultra-large cosmic scales, two key effects become significant: primordial non-Gaussianity and relativistic corrections to cosmological observables. Moreover, if late-time acceleration is driven not by dark energy but by modifications to general relativity, then such modifications should become apparent near and above the horizon scale. As a result, the SKA is forecast to deliver transformational constraints on non-Gaussianity and to probe gravity on super-horizon scales for the first time.en_US
dc.identifier.citationCamera, S., et al., (2014). Cosmology on the largest scales with the SKA. Paper presented at Advancing Astrophysics with the Square Kilometre Array, Giardini Naxos, Italy. PoS(AASKA14)025en_US
dc.identifier.issn1824-8039
dc.identifier.urihttp://hdl.handle.net/10566/1819
dc.language.isoenen_US
dc.privacy.showsubmitterfalse
dc.publisherProceedings of Scienceen_US
dc.rightsBased on the open access philosophy proceedings published on PoS can be read free of charge. No subscription nor registration is required of readers. This article can be accessed at http://pos.sissa.it/archive/conferences/215/025/AASKA14_025.pdf
dc.status.ispeerreviewedtrue
dc.subjectSquare Kilometre Array (SKA)en_US
dc.subjectGalaxiesen_US
dc.subjectCosmologyen_US
dc.subjectModified gravity (MG)en_US
dc.subjectPrimordial non-Gaussianity (PNG)en_US
dc.subjectGeneral relativity (GR)en_US
dc.titleCosmology on the largest scales with the SKAen_US
dc.typeConference Paperen_US

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Prof. Roy Maartens