The power spectrum from the angular distribution of galaxies in the CFHTLS-Wide fields at redshift ~0.7

B. R. Granett; L. Guzzo; J. Coupon; S. Arnouts; P. Hudelot; O. Ilbert; H. J. McCracken; Y. Mellier; C. Adami; J. Bel; M. Bolzonella; D. Bottini; A. Cappi; O. Cucciati; S. de la Torre; P. Franzetti; A. Fritz; B. Garilli; A. Iovino; J. Krywult; V. Le Brun; O. Le Fevre; D. Maccagni; K. Malek; F. Marulli; B. Meneux; L. Paioro; M. Polletta; A. Pollo; M. Scodeggio; H. Schlagenhaufer; L. Tasca; R. Tojeiro; D. Vergani; A. Zanichelli

doi:10.1111/j.1365-2966.2011.20297.x

The power spectrum from the angular distribution of galaxies in the CFHTLS-Wide fields at redshift ~0.7

B. R. Granett, L. Guzzo, J. Coupon, S. Arnouts, P. Hudelot, O. Ilbert, H. J. McCracken, Y. Mellier, C. Adami, J. Bel, M. Bolzonella, D. Bottini, A. Cappi, O. Cucciati, S. de la Torre, P. Franzetti, A. Fritz, B. Garilli, A. Iovino, J. KrywultV. Le Brun, O. Le Fevre, D. Maccagni, K. Malek, F. Marulli, B. Meneux, L. Paioro, M. Polletta, A. Pollo, M. Scodeggio, H. Schlagenhaufer, L. Tasca, R. Tojeiro, D. Vergani, A. Zanichelli

School of Physics and Astronomy

Research output: Contribution to journal › Article › peer-review

Abstract

We measure the real-space galaxy power spectrum on large scales at redshifts 0.5–1.2 using optical colour selected samples from the Canada–France–Hawaii Telescope Legacy Survey. With the redshift distributions measured with a preliminary ∼14 000 spectroscopic redshifts from the VIMOS Public Extragalactic Redshift Survey (VIPERS), we deproject the angular distribution and directly estimate the three-dimensional power spectrum. We use a maximum likelihood estimator that is optimal for a Gaussian random field giving well-defined window functions and error estimates. This measurement presents an initial look at the large-scale structure field probed by the VIPERS. We measure the galaxy bias of the VIPERS-like sample to be b_g= 1.38 ± 0.05 (σ8= 0.8) on scales k < 0.2 h Mpc⁻¹ averaged over 0.5 < z < 1.2. We further investigate three photometric redshift slices, and marginalizing over the bias factors while keeping other Λ cold dark matter parameters fixed, we find the matter density Ω_m= 0.30 ± 0.06.

Original language	English
Pages (from-to)	251-261
Number of pages	11
Journal	Monthly Notices of the Royal Astronomical Society
Volume	421
Issue number	1
Early online date	6 Mar 2012
DOIs	https://doi.org/10.1111/j.1365-2966.2011.20297.x
Publication status	Published - 21 Mar 2012

Keywords

Methods: statistical
Cosmology: observations
Large-scale structure of Universe

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10.1111/j.1365-2966.2011.20297.x

mnras0421-0251
© 2012 The Authors, Monthly Notices of the Royal Astronomical Society © 2012 RAS. This work has been made available online in accordance with the publisher’s policies. This is the final published version of the work, which was originally published at https://doi.org/10.1111/j.1365-2966.2011.20297.x
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Granett, B. R., Guzzo, L., Coupon, J., Arnouts, S., Hudelot, P., Ilbert, O., McCracken, H. J., Mellier, Y., Adami, C., Bel, J., Bolzonella, M., Bottini, D., Cappi, A., Cucciati, O., de la Torre, S., Franzetti, P., Fritz, A., Garilli, B., Iovino, A., ... Zanichelli, A. (2012). The power spectrum from the angular distribution of galaxies in the CFHTLS-Wide fields at redshift ~0.7. Monthly Notices of the Royal Astronomical Society, 421(1), 251-261. https://doi.org/10.1111/j.1365-2966.2011.20297.x

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title = "The power spectrum from the angular distribution of galaxies in the CFHTLS-Wide fields at redshift ~0.7",

abstract = "We measure the real-space galaxy power spectrum on large scales at redshifts 0.5–1.2 using optical colour selected samples from the Canada–France–Hawaii Telescope Legacy Survey. With the redshift distributions measured with a preliminary ∼14 000 spectroscopic redshifts from the VIMOS Public Extragalactic Redshift Survey (VIPERS), we deproject the angular distribution and directly estimate the three-dimensional power spectrum. We use a maximum likelihood estimator that is optimal for a Gaussian random field giving well-defined window functions and error estimates. This measurement presents an initial look at the large-scale structure field probed by the VIPERS. We measure the galaxy bias of the VIPERS-like sample to be bg= 1.38 ± 0.05 (σ8= 0.8) on scales k < 0.2 h Mpc−1 averaged over 0.5 < z < 1.2. We further investigate three photometric redshift slices, and marginalizing over the bias factors while keeping other Λ cold dark matter parameters fixed, we find the matter density Ωm= 0.30 ± 0.06.",

keywords = "Methods: statistical, Cosmology: observations, Large-scale structure of Universe",

author = "Granett, {B. R.} and L. Guzzo and J. Coupon and S. Arnouts and P. Hudelot and O. Ilbert and McCracken, {H. J.} and Y. Mellier and C. Adami and J. Bel and M. Bolzonella and D. Bottini and A. Cappi and O. Cucciati and {de la Torre}, S. and P. Franzetti and A. Fritz and B. Garilli and A. Iovino and J. Krywult and {Le Brun}, V. and {Le Fevre}, O. and D. Maccagni and K. Malek and F. Marulli and B. Meneux and L. Paioro and M. Polletta and A. Pollo and M. Scodeggio and H. Schlagenhaufer and L. Tasca and R. Tojeiro and D. Vergani and A. Zanichelli",

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doi = "10.1111/j.1365-2966.2011.20297.x",

language = "English",

volume = "421",

pages = "251--261",

journal = "Monthly Notices of the Royal Astronomical Society",

issn = "0035-8711",

publisher = "Oxford University Press",

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Granett, BR, Guzzo, L, Coupon, J, Arnouts, S, Hudelot, P, Ilbert, O, McCracken, HJ, Mellier, Y, Adami, C, Bel, J, Bolzonella, M, Bottini, D, Cappi, A, Cucciati, O, de la Torre, S, Franzetti, P, Fritz, A, Garilli, B, Iovino, A, Krywult, J, Le Brun, V, Le Fevre, O, Maccagni, D, Malek, K, Marulli, F, Meneux, B, Paioro, L, Polletta, M, Pollo, A, Scodeggio, M, Schlagenhaufer, H, Tasca, L, Tojeiro, R, Vergani, D & Zanichelli, A 2012, 'The power spectrum from the angular distribution of galaxies in the CFHTLS-Wide fields at redshift ~0.7', Monthly Notices of the Royal Astronomical Society, vol. 421, no. 1, pp. 251-261. https://doi.org/10.1111/j.1365-2966.2011.20297.x

TY - JOUR

T1 - The power spectrum from the angular distribution of galaxies in the CFHTLS-Wide fields at redshift ~0.7

AU - Granett, B. R.

AU - Guzzo, L.

AU - Coupon, J.

AU - Arnouts, S.

AU - Hudelot, P.

AU - Ilbert, O.

AU - McCracken, H. J.

AU - Mellier, Y.

AU - Adami, C.

AU - Bel, J.

AU - Bolzonella, M.

AU - Bottini, D.

AU - Cappi, A.

AU - Cucciati, O.

AU - de la Torre, S.

AU - Franzetti, P.

AU - Fritz, A.

AU - Garilli, B.

AU - Iovino, A.

AU - Krywult, J.

AU - Le Brun, V.

AU - Le Fevre, O.

AU - Maccagni, D.

AU - Malek, K.

AU - Marulli, F.

AU - Meneux, B.

AU - Paioro, L.

AU - Polletta, M.

AU - Pollo, A.

AU - Scodeggio, M.

AU - Schlagenhaufer, H.

AU - Tasca, L.

AU - Tojeiro, R.

AU - Vergani, D.

AU - Zanichelli, A.

PY - 2012/3/21

Y1 - 2012/3/21

N2 - We measure the real-space galaxy power spectrum on large scales at redshifts 0.5–1.2 using optical colour selected samples from the Canada–France–Hawaii Telescope Legacy Survey. With the redshift distributions measured with a preliminary ∼14 000 spectroscopic redshifts from the VIMOS Public Extragalactic Redshift Survey (VIPERS), we deproject the angular distribution and directly estimate the three-dimensional power spectrum. We use a maximum likelihood estimator that is optimal for a Gaussian random field giving well-defined window functions and error estimates. This measurement presents an initial look at the large-scale structure field probed by the VIPERS. We measure the galaxy bias of the VIPERS-like sample to be bg= 1.38 ± 0.05 (σ8= 0.8) on scales k < 0.2 h Mpc−1 averaged over 0.5 < z < 1.2. We further investigate three photometric redshift slices, and marginalizing over the bias factors while keeping other Λ cold dark matter parameters fixed, we find the matter density Ωm= 0.30 ± 0.06.

AB - We measure the real-space galaxy power spectrum on large scales at redshifts 0.5–1.2 using optical colour selected samples from the Canada–France–Hawaii Telescope Legacy Survey. With the redshift distributions measured with a preliminary ∼14 000 spectroscopic redshifts from the VIMOS Public Extragalactic Redshift Survey (VIPERS), we deproject the angular distribution and directly estimate the three-dimensional power spectrum. We use a maximum likelihood estimator that is optimal for a Gaussian random field giving well-defined window functions and error estimates. This measurement presents an initial look at the large-scale structure field probed by the VIPERS. We measure the galaxy bias of the VIPERS-like sample to be bg= 1.38 ± 0.05 (σ8= 0.8) on scales k < 0.2 h Mpc−1 averaged over 0.5 < z < 1.2. We further investigate three photometric redshift slices, and marginalizing over the bias factors while keeping other Λ cold dark matter parameters fixed, we find the matter density Ωm= 0.30 ± 0.06.

KW - Methods: statistical

KW - Cosmology: observations

KW - Large-scale structure of Universe

U2 - 10.1111/j.1365-2966.2011.20297.x

DO - 10.1111/j.1365-2966.2011.20297.x

M3 - Article

SN - 0035-8711

VL - 421

SP - 251

EP - 261

JO - Monthly Notices of the Royal Astronomical Society

JF - Monthly Notices of the Royal Astronomical Society

IS - 1

ER -

The power spectrum from the angular distribution of galaxies in the CFHTLS-Wide fields at redshift ~0.7

Abstract

Keywords

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