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Cosmic voids and void lensing in the Dark Energy Survey Science Verification data

Author(s): Sanchez, C; Clampitt, J; Kovacs, A; Jain, B; Garcia-Bellido, J; et al

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dc.contributor.authorSanchez, C-
dc.contributor.authorClampitt, J-
dc.contributor.authorKovacs, A-
dc.contributor.authorJain, B-
dc.contributor.authorGarcia-Bellido, J-
dc.contributor.authorNadathur, S-
dc.contributor.authorGruen, D-
dc.contributor.authorHamaus, N-
dc.contributor.authorHuterer, D-
dc.contributor.authorVielzeuf, P-
dc.contributor.authorAmara, A-
dc.contributor.authorBonnett, C-
dc.contributor.authorDeRose, J-
dc.contributor.authorHartley, WG-
dc.contributor.authorJarvis, M-
dc.contributor.authorLahav, O-
dc.contributor.authorMiquel, R-
dc.contributor.authorRozo, E-
dc.contributor.authorRykoff, ES-
dc.contributor.authorSheldon, E-
dc.contributor.authorWechsler, RH-
dc.contributor.authorZuntz, J-
dc.contributor.authorAbbott, TMC-
dc.contributor.authorAbdalla, FB-
dc.contributor.authorAnnis, J-
dc.contributor.authorBenoit-Levy, A-
dc.contributor.authorBernstein, GM-
dc.contributor.authorBernstein, RA-
dc.contributor.authorBertin, E-
dc.contributor.authorBrooks, D-
dc.contributor.authorBuckley-Geer, E-
dc.contributor.authorCarnero Rosell, A-
dc.contributor.authorKind, M Carrasco-
dc.contributor.authorCarretero, J-
dc.contributor.authorCrocce, M-
dc.contributor.authorCunha, CE-
dc.contributor.authorD Andrea, CB-
dc.contributor.authorda Costa, LN-
dc.contributor.authorDesai, S-
dc.contributor.authorDiehl, HT-
dc.contributor.authorDietrich, JP-
dc.contributor.authorDoel, P-
dc.contributor.authorEvrard, AE-
dc.contributor.authorFausti Neto, A-
dc.contributor.authorFlaugher, B-
dc.contributor.authorFosalba, P-
dc.contributor.authorFrieman, J-
dc.contributor.authorGaztanaga, E-
dc.contributor.authorGruendl, RA-
dc.contributor.authorGutierrez, G-
dc.contributor.authorHonscheid, K-
dc.contributor.authorJames, DJ-
dc.contributor.authorKrause, E-
dc.contributor.authorKuehn, K-
dc.contributor.authorLima, M-
dc.contributor.authorMaia, MAG-
dc.contributor.authorMarshall, JL-
dc.contributor.authorMelchior, Peter M-
dc.contributor.authorPlazas, AA-
dc.contributor.authorReil, K-
dc.contributor.authorRomer, AK-
dc.contributor.authorSanchez, E-
dc.contributor.authorSchubnell, M-
dc.contributor.authorSevilla-Noarbe, I-
dc.contributor.authorSmith, RC-
dc.contributor.authorSoares-Santos, M-
dc.contributor.authorSobreira, F-
dc.contributor.authorSuchyta, E-
dc.contributor.authorTarle, G-
dc.contributor.authorThomas, D-
dc.contributor.authorWalker, AR-
dc.contributor.authorWeller, J-
dc.contributor.authorCollaboration, DES-
dc.date.accessioned2022-01-25T15:02:04Z-
dc.date.available2022-01-25T15:02:04Z-
dc.date.issued2017-02-11en_US
dc.identifier.citationSanchez, C, Clampitt, J, Kovacs, A, Jain, B, Garcia-Bellido, J, Nadathur, S, Gruen, D, Hamaus, N, Huterer, D, Vielzeuf, P, Amara, A, Bonnett, C, DeRose, J, Hartley, WG, Jarvis, M, Lahav, O, Miquel, R, Rozo, E, Rykoff, ES, Sheldon, E, Wechsler, RH, Zuntz, J, Abbott, TMC, Abdalla, FB, Annis, J, Benoit-Levy, A, Bernstein, GM, Bernstein, RA, Bertin, E, Brooks, D, Buckley-Geer, E, Carnero Rosell, A, Kind, M Carrasco, Carretero, J, Crocce, M, Cunha, CE, D Andrea, CB, da Costa, LN, Desai, S, Diehl, HT, Dietrich, JP, Doel, P, Evrard, AE, Fausti Neto, A, Flaugher, B, Fosalba, P, Frieman, J, Gaztanaga, E, Gruendl, RA, Gutierrez, G, Honscheid, K, James, DJ, Krause, E, Kuehn, K, Lima, M, Maia, MAG, Marshall, JL, Melchior, P, Plazas, AA, Reil, K, Romer, AK, Sanchez, E, Schubnell, M, Sevilla-Noarbe, I, Smith, RC, Soares-Santos, M, Sobreira, F, Suchyta, E, Tarle, G, Thomas, D, Walker, AR, Weller, J, Collaboration, DES. (2017). Cosmic voids and void lensing in the Dark Energy Survey Science Verification data. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 465 (746 - 759. doi:10.1093/mnras/stw2745en_US
dc.identifier.issn0035-8711-
dc.identifier.urihttp://arks.princeton.edu/ark:/88435/pr1mk65794-
dc.description.abstractCosmic voids are usually identified in spectroscopic galaxy surveys, where 3D information about the large-scale structure of the Universe is available. Although an increasing amount of photometric data is being produced, its potential for void studies is limited since photometric redshifts induce line-of-sight position errors of >= 50 Mpc h(-1)which can render many voids undetectable. We present a new void finder designed for photometric surveys, validate it using simulations, and apply it to the high-quality photo-z redMaGiC galaxy sample of the DES Science Verification data. The algorithm works by projecting galaxies into 2D slices and finding voids in the smoothed 2D galaxy density field of the slice. Fixing the line-of-sight size of the slices to be at least twice the photo-z scatter, the number of voids found in simulated spectroscopic and photometric galaxy catalogues is within 20 per cent for all transverse void sizes, and indistinguishable for the largest voids (R-v >= 70 Mpc h(-1)). The positions, radii, and projected galaxy profiles of photometric voids also accurately match the spectroscopic void sample. Applying the algorithm to the DES-SV data in the redshift range 0.2 < z < 0.8, we identify 87 voids with comoving radii spanning the range 18-120 Mpc h(-1), and carry out a stacked weak lensing measurement. With a significance of 4.4 sigma, the lensing measurement confirms that the voids are truly underdense in the matter field and hence not a product of Poisson noise, tracer density effects or systematics in the data. It also demonstrates, for the first time in real data, the viability of void lensing studies in photometric surveys.en_US
dc.format.extent746 - 759en_US
dc.language.isoen_USen_US
dc.relation.ispartofMONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETYen_US
dc.rightsFinal published version. Article is made available in OAR by the publisher's permission or policy.en_US
dc.titleCosmic voids and void lensing in the Dark Energy Survey Science Verification dataen_US
dc.typeJournal Articleen_US
dc.identifier.doidoi:10.1093/mnras/stw2745-
dc.date.eissued2016-10-26en_US
dc.identifier.eissn1365-2966-
pu.type.symplectichttp://www.symplectic.co.uk/publications/atom-terms/1.0/journal-articleen_US

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