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Cosmic voids and void lensing in the Dark Energy Survey science verification data

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Cosmic voids and void lensing in the Dark Energy Survey science verification data. / Sánchez, C.; Clampitt, J.; Kovacs, A.; Jain, B.; García-Bellido, J.; Nadathur, S.; Gruen, D.; Hamaus, N.; Huterer, D.; Vielzeuf, P.; Amara, A.; Bonnett, C.; DeRose, J.; Hartley, W. G.; Jarvis, M.; Lahav, O.; Miquel, R.; Rozo, E.; Rykoff, E. S.; Sheldon, E.; Wechsler, R. H.; Zuntz, J.; Abbott, T. M. C.; Abdalla, F. B.; Annis, J.; Benoit-Lévy, A.; Bernstein, G. M.; Bernstein, R. A.; Bertin, E.; Brooks, D.; Buckley-Geer, E.; Rosell, A. Carnero; Kind, M. Carrasco; Carretero, J.; Crocce, M.; Cunha, C. E.; D'Andrea, C. B.; Costa, L. N. da; Desai, S.; Diehl, H. T.; Dietrich, J. P.; Doel, P.; Evrard, A. E.; Neto, A. Fausti; Flaugher, B.; Fosalba, P.; Frieman, J.; Gaztanaga, E.; Gruendl, R. A.; Gutierrez, G.; Honscheid, K.; James, D. J.; Krause, E.; Kuehn, K.; Lima, M.; Maia, M. A. G.; Marshall, J. L.; Melchior, P.; Plazas, A. A.; Reil, K.; Romer, A. K.; Sanchez, E.; Schubnell, M.; Sevilla-Noarbe, I.; Smith, R. C.; Soares-Santos, M.; Sobreira, F.; Suchyta, E.; Tarle, G.; Thomas, D.; Weller, J.

In: Monthly Notices of the Royal Astronomical Society, Vol. 465, No. 1, 11.02.2017, p. 746-759.

Research output: Contribution to journalArticle

Harvard

Sánchez, C, Clampitt, J, Kovacs, A, Jain, B, García-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-Lévy, A, Bernstein, GM, Bernstein, RA, Bertin, E, Brooks, D, Buckley-Geer, E, Rosell, AC, Kind, MC, Carretero, J, Crocce, M, Cunha, CE, D'Andrea, CB, Costa, LND, Desai, S, Diehl, HT, Dietrich, JP, Doel, P, Evrard, AE, Neto, AF, 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 & Weller, J 2017, 'Cosmic voids and void lensing in the Dark Energy Survey science verification data', Monthly Notices of the Royal Astronomical Society, vol. 465, no. 1, pp. 746-759. https://doi.org/10.1093/mnras/stw2745

APA

Sánchez, C., Clampitt, J., Kovacs, A., Jain, B., García-Bellido, J., Nadathur, S., Gruen, D., Hamaus, N., Huterer, D., Vielzeuf, P., Amara, A., Bonnett, C., DeRose, J., Hartley, W. G., Jarvis, M., Lahav, O., Miquel, R., Rozo, E., Rykoff, E. S., ... Weller, J. (2017). Cosmic voids and void lensing in the Dark Energy Survey science verification data. Monthly Notices of the Royal Astronomical Society, 465(1), 746-759. https://doi.org/10.1093/mnras/stw2745

Vancouver

Sánchez C, Clampitt J, Kovacs A, Jain B, García-Bellido J, Nadathur S et al. Cosmic voids and void lensing in the Dark Energy Survey science verification data. Monthly Notices of the Royal Astronomical Society. 2017 Feb 11;465(1):746-759. https://doi.org/10.1093/mnras/stw2745

Author

Sánchez, C. ; Clampitt, J. ; Kovacs, A. ; Jain, B. ; García-Bellido, J. ; Nadathur, S. ; Gruen, D. ; Hamaus, N. ; Huterer, D. ; Vielzeuf, P. ; Amara, A. ; Bonnett, C. ; DeRose, J. ; Hartley, W. G. ; Jarvis, M. ; Lahav, O. ; Miquel, R. ; Rozo, E. ; Rykoff, E. S. ; Sheldon, E. ; Wechsler, R. H. ; Zuntz, J. ; Abbott, T. M. C. ; Abdalla, F. B. ; Annis, J. ; Benoit-Lévy, A. ; Bernstein, G. M. ; Bernstein, R. A. ; Bertin, E. ; Brooks, D. ; Buckley-Geer, E. ; Rosell, A. Carnero ; Kind, M. Carrasco ; Carretero, J. ; Crocce, M. ; Cunha, C. E. ; D'Andrea, C. B. ; Costa, L. N. da ; Desai, S. ; Diehl, H. T. ; Dietrich, J. P. ; Doel, P. ; Evrard, A. E. ; Neto, A. Fausti ; Flaugher, B. ; Fosalba, P. ; Frieman, J. ; Gaztanaga, E. ; Gruendl, R. A. ; Gutierrez, G. ; Honscheid, K. ; James, D. J. ; Krause, E. ; Kuehn, K. ; Lima, M. ; Maia, M. A. G. ; Marshall, J. L. ; Melchior, P. ; Plazas, A. A. ; Reil, K. ; Romer, A. K. ; Sanchez, E. ; Schubnell, M. ; Sevilla-Noarbe, I. ; Smith, R. C. ; Soares-Santos, M. ; Sobreira, F. ; Suchyta, E. ; Tarle, G. ; Thomas, D. ; Weller, J. / Cosmic voids and void lensing in the Dark Energy Survey science verification data. In: Monthly Notices of the Royal Astronomical Society. 2017 ; Vol. 465, No. 1. pp. 746-759.

Bibtex

@article{f035be4514eb468aa0d503c2b68321a0,
title = "Cosmic voids and void lensing in the Dark Energy Survey science verification data",
abstract = "Cosmic 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 that 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 catalogs is within 20% for all transverse void sizes, and indistinguishable for the largest voids (Rv ≥ 70Mpc/h). 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, and carry out a stacked weak lensing measurement. With a significance of 4.4σ, the lensing measurement confirms 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. ",
keywords = "astro-ph.CO, RCUK, STFC, large-scale structure of Universe, cosmology: observations, gravitational lensing: weak",
author = "C. S{\'a}nchez and J. Clampitt and A. Kovacs and B. Jain and J. Garc{\'i}a-Bellido and S. Nadathur and D. Gruen and N. Hamaus and D. Huterer and P. Vielzeuf and A. Amara and C. Bonnett and J. DeRose and Hartley, {W. G.} and M. Jarvis and O. Lahav and R. Miquel and E. Rozo and Rykoff, {E. S.} and E. Sheldon and Wechsler, {R. H.} and J. Zuntz and Abbott, {T. M. C.} and Abdalla, {F. B.} and J. Annis and A. Benoit-L{\'e}vy and Bernstein, {G. M.} and Bernstein, {R. A.} and E. Bertin and D. Brooks and E. Buckley-Geer and Rosell, {A. Carnero} and Kind, {M. Carrasco} and J. Carretero and M. Crocce and Cunha, {C. E.} and D'Andrea, {C. B.} and Costa, {L. N. da} and S. Desai and Diehl, {H. T.} and Dietrich, {J. P.} and P. Doel and Evrard, {A. E.} and Neto, {A. Fausti} and B. Flaugher and P. Fosalba and J. Frieman and E. Gaztanaga and Gruendl, {R. A.} and G. Gutierrez and K. Honscheid and James, {D. J.} and E. Krause and K. Kuehn and M. Lima and Maia, {M. A. G.} and Marshall, {J. L.} and P. Melchior and Plazas, {A. A.} and K. Reil and Romer, {A. K.} and E. Sanchez and M. Schubnell and I. Sevilla-Noarbe and Smith, {R. C.} and M. Soares-Santos and F. Sobreira and E. Suchyta and G. Tarle and D. Thomas and J. Weller",
note = "Accepted for publication in MNRAS. 15 pages, 16 figures",
year = "2017",
month = feb,
day = "11",
doi = "10.1093/mnras/stw2745",
language = "English",
volume = "465",
pages = "746--759",
journal = "MNRAS",
issn = "0035-8711",
publisher = "Oxford University Press",
number = "1",

}

RIS

TY - JOUR

T1 - Cosmic voids and void lensing in the Dark Energy Survey science verification data

AU - Sánchez, C.

AU - Clampitt, J.

AU - Kovacs, A.

AU - Jain, B.

AU - García-Bellido, J.

AU - Nadathur, S.

AU - Gruen, D.

AU - Hamaus, N.

AU - Huterer, D.

AU - Vielzeuf, P.

AU - Amara, A.

AU - Bonnett, C.

AU - DeRose, J.

AU - Hartley, W. G.

AU - Jarvis, M.

AU - Lahav, O.

AU - Miquel, R.

AU - Rozo, E.

AU - Rykoff, E. S.

AU - Sheldon, E.

AU - Wechsler, R. H.

AU - Zuntz, J.

AU - Abbott, T. M. C.

AU - Abdalla, F. B.

AU - Annis, J.

AU - Benoit-Lévy, A.

AU - Bernstein, G. M.

AU - Bernstein, R. A.

AU - Bertin, E.

AU - Brooks, D.

AU - Buckley-Geer, E.

AU - Rosell, A. Carnero

AU - Kind, M. Carrasco

AU - Carretero, J.

AU - Crocce, M.

AU - Cunha, C. E.

AU - D'Andrea, C. B.

AU - Costa, L. N. da

AU - Desai, S.

AU - Diehl, H. T.

AU - Dietrich, J. P.

AU - Doel, P.

AU - Evrard, A. E.

AU - Neto, A. Fausti

AU - Flaugher, B.

AU - Fosalba, P.

AU - Frieman, J.

AU - Gaztanaga, E.

AU - Gruendl, R. A.

AU - Gutierrez, G.

AU - Honscheid, K.

AU - James, D. J.

AU - Krause, E.

AU - Kuehn, K.

AU - Lima, M.

AU - Maia, M. A. G.

AU - Marshall, J. L.

AU - Melchior, P.

AU - Plazas, A. A.

AU - Reil, K.

AU - Romer, A. K.

AU - Sanchez, E.

AU - Schubnell, M.

AU - Sevilla-Noarbe, I.

AU - Smith, R. C.

AU - Soares-Santos, M.

AU - Sobreira, F.

AU - Suchyta, E.

AU - Tarle, G.

AU - Thomas, D.

AU - Weller, J.

N1 - Accepted for publication in MNRAS. 15 pages, 16 figures

PY - 2017/2/11

Y1 - 2017/2/11

N2 - Cosmic 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 that 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 catalogs is within 20% for all transverse void sizes, and indistinguishable for the largest voids (Rv ≥ 70Mpc/h). 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, and carry out a stacked weak lensing measurement. With a significance of 4.4σ, the lensing measurement confirms 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.

AB - Cosmic 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 that 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 catalogs is within 20% for all transverse void sizes, and indistinguishable for the largest voids (Rv ≥ 70Mpc/h). 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, and carry out a stacked weak lensing measurement. With a significance of 4.4σ, the lensing measurement confirms 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.

KW - astro-ph.CO

KW - RCUK

KW - STFC

KW - large-scale structure of Universe

KW - cosmology: observations

KW - gravitational lensing: weak

U2 - 10.1093/mnras/stw2745

DO - 10.1093/mnras/stw2745

M3 - Article

VL - 465

SP - 746

EP - 759

JO - MNRAS

JF - MNRAS

SN - 0035-8711

IS - 1

ER -

ID: 4920794