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dc.contributor.authorWang, Yun
dc.contributor.authorPercival, Will
dc.contributor.authorCimatti, Andrea
dc.contributor.authorMukherjee, Pia
dc.contributor.authorGuzzo, Luigi
dc.contributor.authorBaugh, Carlton M.
dc.contributor.authorCarbone, Carmelita
dc.contributor.authorFranzetti, Paolo
dc.contributor.authorGarilli, Bianca
dc.contributor.authorGeach, James E.
dc.contributor.authorLacey, Cedric G.
dc.contributor.authorMajerotto, Elisabetta
dc.contributor.authorOrsi, Alvaro
dc.contributor.authorRosati, Piero
dc.contributor.authorSamushia, Lado
dc.contributor.authorZamorani, Giovanni
dc.date.accessioned2013-08-06T09:03:16Z
dc.date.available2013-08-06T09:03:16Z
dc.date.issued2010-12
dc.identifier.citationWang , Y , Percival , W , Cimatti , A , Mukherjee , P , Guzzo , L , Baugh , C M , Carbone , C , Franzetti , P , Garilli , B , Geach , J E , Lacey , C G , Majerotto , E , Orsi , A , Rosati , P , Samushia , L & Zamorani , G 2010 , ' Designing a space-based galaxy redshift survey to probe dark energy ' , Monthly Notices of the Royal Astronomical Society , vol. 409 , no. 2 , pp. 737-749 . https://doi.org/10.1111/j.1365-2966.2010.17335.x
dc.identifier.issn0035-8711
dc.identifier.otherPURE: 2139476
dc.identifier.otherPURE UUID: ae01cc6f-86e9-42e2-b783-a701ea0afaed
dc.identifier.otherWOS: 000284282300022
dc.identifier.otherScopus: 78449263766
dc.identifier.urihttp://hdl.handle.net/2299/11311
dc.description.abstractA space-based galaxy redshift survey would have enormous power in constraining dark energy and testing general relativity, provided that its parameters are suitably optimized. We study viable space-based galaxy redshift surveys, exploring the dependence of the Dark Energy Task Force (DETF) figure-of-merit (FoM) on redshift accuracy, redshift range, survey area, target selection and forecast method. Fitting formulae are provided for convenience. We also consider the dependence on the information used: the full galaxy power spectrum P(k), P(k) marginalized over its shape, or just the Baryon Acoustic Oscillations (BAO). We find that the inclusion of growth rate information (extracted using redshift space distortion and galaxy clustering amplitude measurements) leads to a factor of similar to 3 improvement in the FoM, assuming general relativity is not modified. This inclusion partially compensates for the loss of information when only the BAO are used to give geometrical constraints, rather than using the full P(k) as a standard ruler. We find that a space-based galaxy redshift survey covering similar to 20 000 deg(2) over 0.5 less than or similar to z less than or similar to 2 with sigma(z)/(1 + z)en
dc.format.extent13
dc.language.isoeng
dc.relation.ispartofMonthly Notices of the Royal Astronomical Society
dc.subjectcosmology: observations
dc.subjectdistance scale
dc.subjectlarge-scale structure of Universe
dc.subjectBARYON ACOUSTIC-OSCILLATIONS
dc.subjectCOSMOLOGICAL CONSTANT
dc.subjectACCELERATING UNIVERSE
dc.subjectCOSMIC ACCELERATION
dc.subjectPOWER-SPECTRUM
dc.subjectCONSTRAINTS
dc.subjectMATTER
dc.subjectSUPERNOVAE
dc.subjectGRAVITY
dc.subjectMODEL
dc.titleDesigning a space-based galaxy redshift survey to probe dark energyen
dc.contributor.institutionSchool of Physics, Astronomy and Mathematics
dc.contributor.institutionScience & Technology Research Institute
dc.description.statusPeer reviewed
rioxxterms.versionSMUR
rioxxterms.versionofrecordhttps://doi.org/10.1111/j.1365-2966.2010.17335.x
rioxxterms.typeJournal Article/Review
herts.preservation.rarelyaccessedtrue


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