Skip to content
Back to outputs

Density split statistics: joint model of counts and lensing in cells

Research output: Contribution to journalArticle

Standard

Density split statistics : joint model of counts and lensing in cells. / Dark Energy Survey Collaboration; D'Andrea, C. B.; Thomas, D.

In: Physical Review D, Vol. 98, No. 2, 023508, 15.07.2018.

Research output: Contribution to journalArticle

Harvard

Dark Energy Survey Collaboration, D'Andrea, CB & Thomas, D 2018, 'Density split statistics: joint model of counts and lensing in cells', Physical Review D, vol. 98, no. 2, 023508. https://doi.org/10.1103/PhysRevD.98.023508

APA

Dark Energy Survey Collaboration, D'Andrea, C. B., & Thomas, D. (2018). Density split statistics: joint model of counts and lensing in cells. Physical Review D, 98(2), [023508]. https://doi.org/10.1103/PhysRevD.98.023508

Vancouver

Dark Energy Survey Collaboration, D'Andrea CB, Thomas D. Density split statistics: joint model of counts and lensing in cells. Physical Review D. 2018 Jul 15;98(2). 023508. https://doi.org/10.1103/PhysRevD.98.023508

Author

Dark Energy Survey Collaboration ; D'Andrea, C. B. ; Thomas, D. / Density split statistics : joint model of counts and lensing in cells. In: Physical Review D. 2018 ; Vol. 98, No. 2.

Bibtex

@article{71f8fdc0fbfc4f0c8d38ea951ecf9ad6,
title = "Density split statistics: joint model of counts and lensing in cells",
abstract = "We present density split statistics, a framework that studies lensing and counts-in-cells as a function of foreground galaxy density, thereby providing a large-scale measurement of both 2-point and 3-point statistics. Our method extends our earlier work on trough lensing and is summarized as follows: given a foreground (low redshift) population of galaxies, we divide the sky into subareas of equal size but distinct galaxy density. We then measure lensing around uniformly spaced points separately in each of these subareas, as well as counts-in-cells statistics (CiC). The lensing signals trace the matter density contrast around regions of fixed galaxy density. Through the CiC measurements this can be related to the density profile around regions of fixed matter density. Together, these measurements constitute a powerful probe of cosmology, the skewness of the density field and the connection of galaxies and matter. In this paper we show how to model both the density split lensing signal and CiC from basic ingredients: a non-linear power spectrum, clustering hierarchy coefficients from perturbation theory and a parametric model for galaxy bias and shot-noise. Using N-body simulations, we demonstrate that this model is sufficiently accurate for a cosmological analysis on year 1 data from the Dark Energy Survey.",
keywords = "RCUK, STFC",
author = "{Dark Energy Survey Collaboration} and O. Friedrich and D. Gruen and J. Derose and D. Kirk and E. Krause and T. McClintock and Rykoff, {E. S.} and S. Seitz and Wechsler, {R. H.} and Bernstein, {G. M.} and J. Blazek and C. Chang and S. Hilbert and B. Jain and A. Kovacs and O. Lahav and Abdalla, {F. B.} and S. Allam and J. Annis and K. Bechtol and A. Benoit-L{\'e}vy and E. Bertin and D. Brooks and {Carnero Rosell}, A. and {Carrasco Kind}, M. and J. Carretero and Cunha, {C. E.} and D'Andrea, {C. B.} and {Da Costa}, {L. N.} and C. Davis and S. Desai and Diehl, {H. T.} and Dietrich, {J. P.} and A. Drlica-Wagner and Eifler, {T. F.} and P. Fosalba and J. Frieman and J. Garc{\'i}a-Bellido and E. Gaztanaga and Gerdes, {D. W.} and T. Giannantonio and Gruendl, {R. A.} and J. Gschwend and G. Gutierrez and K. Honscheid and James, {D. J.} and M. Jarvis and Marshall, {J. L.} and M. Smith and D. Thomas",
year = "2018",
month = jul,
day = "15",
doi = "10.1103/PhysRevD.98.023508",
language = "English",
volume = "98",
journal = "Physical Review D",
issn = "1550-7998",
publisher = "American Institute of Physics Publising LLC",
number = "2",

}

RIS

TY - JOUR

T1 - Density split statistics

T2 - joint model of counts and lensing in cells

AU - Dark Energy Survey Collaboration

AU - Friedrich, O.

AU - Gruen, D.

AU - Derose, J.

AU - Kirk, D.

AU - Krause, E.

AU - McClintock, T.

AU - Rykoff, E. S.

AU - Seitz, S.

AU - Wechsler, R. H.

AU - Bernstein, G. M.

AU - Blazek, J.

AU - Chang, C.

AU - Hilbert, S.

AU - Jain, B.

AU - Kovacs, A.

AU - Lahav, O.

AU - Abdalla, F. B.

AU - Allam, S.

AU - Annis, J.

AU - Bechtol, K.

AU - Benoit-Lévy, A.

AU - Bertin, E.

AU - Brooks, D.

AU - Carnero Rosell, A.

AU - Carrasco Kind, M.

AU - Carretero, J.

AU - Cunha, C. E.

AU - D'Andrea, C. B.

AU - Da Costa, L. N.

AU - Davis, C.

AU - Desai, S.

AU - Diehl, H. T.

AU - Dietrich, J. P.

AU - Drlica-Wagner, A.

AU - Eifler, T. F.

AU - Fosalba, P.

AU - Frieman, J.

AU - García-Bellido, J.

AU - Gaztanaga, E.

AU - Gerdes, D. W.

AU - Giannantonio, T.

AU - Gruendl, R. A.

AU - Gschwend, J.

AU - Gutierrez, G.

AU - Honscheid, K.

AU - James, D. J.

AU - Jarvis, M.

AU - Marshall, J. L.

AU - Smith, M.

AU - Thomas, D.

PY - 2018/7/15

Y1 - 2018/7/15

N2 - We present density split statistics, a framework that studies lensing and counts-in-cells as a function of foreground galaxy density, thereby providing a large-scale measurement of both 2-point and 3-point statistics. Our method extends our earlier work on trough lensing and is summarized as follows: given a foreground (low redshift) population of galaxies, we divide the sky into subareas of equal size but distinct galaxy density. We then measure lensing around uniformly spaced points separately in each of these subareas, as well as counts-in-cells statistics (CiC). The lensing signals trace the matter density contrast around regions of fixed galaxy density. Through the CiC measurements this can be related to the density profile around regions of fixed matter density. Together, these measurements constitute a powerful probe of cosmology, the skewness of the density field and the connection of galaxies and matter. In this paper we show how to model both the density split lensing signal and CiC from basic ingredients: a non-linear power spectrum, clustering hierarchy coefficients from perturbation theory and a parametric model for galaxy bias and shot-noise. Using N-body simulations, we demonstrate that this model is sufficiently accurate for a cosmological analysis on year 1 data from the Dark Energy Survey.

AB - We present density split statistics, a framework that studies lensing and counts-in-cells as a function of foreground galaxy density, thereby providing a large-scale measurement of both 2-point and 3-point statistics. Our method extends our earlier work on trough lensing and is summarized as follows: given a foreground (low redshift) population of galaxies, we divide the sky into subareas of equal size but distinct galaxy density. We then measure lensing around uniformly spaced points separately in each of these subareas, as well as counts-in-cells statistics (CiC). The lensing signals trace the matter density contrast around regions of fixed galaxy density. Through the CiC measurements this can be related to the density profile around regions of fixed matter density. Together, these measurements constitute a powerful probe of cosmology, the skewness of the density field and the connection of galaxies and matter. In this paper we show how to model both the density split lensing signal and CiC from basic ingredients: a non-linear power spectrum, clustering hierarchy coefficients from perturbation theory and a parametric model for galaxy bias and shot-noise. Using N-body simulations, we demonstrate that this model is sufficiently accurate for a cosmological analysis on year 1 data from the Dark Energy Survey.

KW - RCUK

KW - STFC

UR - http://www.scopus.com/inward/record.url?scp=85051133128&partnerID=8YFLogxK

U2 - 10.1103/PhysRevD.98.023508

DO - 10.1103/PhysRevD.98.023508

M3 - Article

AN - SCOPUS:85051133128

VL - 98

JO - Physical Review D

JF - Physical Review D

SN - 1550-7998

IS - 2

M1 - 023508

ER -

ID: 11739663