Clustering properties of g-selected galaxies at z ~ 0.8

Ginevra Favole, Johan Comparat, Francisco Prada, Gustavo Yepes, Eric Jullo, Anna Niemiec, Jean Paul Kneib, Sergio A.R. Rodríguez-Torres, Anatoly Klypin, Ramin A. Skibba, Cameron K. McBride, Daniel J. Eisenstein, David J. Schlegel, Sebastín E. Nuza, Chia Hsun Chuang, Timotheé Delubac, Christophe Yèche, Donald P. Schneider

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

Current and future large redshift surveys, as the Sloan Digital Sky Survey IV extended Baryon Oscillation Spectroscopic Survey (SDSS-IV/eBOSS) or the Dark Energy Spectroscopic Instrument (DESI), will use emission-line galaxies (ELGs) to probe cosmological models by mapping the large-scale structure of the Universe in the redshift range 0.6 < z < 1.7. With current data, we explore the halo-galaxy connection by measuring three clustering properties of g-selected ELGs as matter tracers in the redshift range 0.6 < z < 1: (i) the redshift-space two-point correlation function using spectroscopic redshifts from the BOSS ELG sample and VIPERS; (ii) the angular two-point correlation function on the footprint of the CFHT-LS; (iii) the galaxy-galaxy lensing signal around the ELGs using the CFHTLenS. We interpret these observations by mapping them on to the latest high-resolution MultiDark Planck N-body simulation, using a novel (Sub)Halo-Abundance Matching technique that accounts for the ELG incompleteness. ELGs at z ~ 0.8 live in haloes of (1 ± 0.5) × 1012 h-1M⊙ and 22.5 ± 2.5 per cent of them are satellites belonging to a larger halo. The halo occupation distribution of ELGs indicates that we are sampling the galaxies in which stars form in the most efficient way, according to their stellar-to-halo mass ratio.

Original languageEnglish (US)
Pages (from-to)3421-3431
Number of pages11
JournalMonthly Notices of the Royal Astronomical Society
Volume461
Issue number4
DOIs
StatePublished - Oct 1 2016

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galaxies
halos
footprint
occupation
large-scale structure of the universe
tracer
oscillation
probe
footprints
dark energy
mass ratios
tracers
sampling
baryons
simulation
energy
stars
oscillations
probes
high resolution

All Science Journal Classification (ASJC) codes

  • Astronomy and Astrophysics
  • Space and Planetary Science

Cite this

Favole, Ginevra ; Comparat, Johan ; Prada, Francisco ; Yepes, Gustavo ; Jullo, Eric ; Niemiec, Anna ; Kneib, Jean Paul ; Rodríguez-Torres, Sergio A.R. ; Klypin, Anatoly ; Skibba, Ramin A. ; McBride, Cameron K. ; Eisenstein, Daniel J. ; Schlegel, David J. ; Nuza, Sebastín E. ; Chuang, Chia Hsun ; Delubac, Timotheé ; Yèche, Christophe ; Schneider, Donald P. / Clustering properties of g-selected galaxies at z ~ 0.8. In: Monthly Notices of the Royal Astronomical Society. 2016 ; Vol. 461, No. 4. pp. 3421-3431.
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abstract = "Current and future large redshift surveys, as the Sloan Digital Sky Survey IV extended Baryon Oscillation Spectroscopic Survey (SDSS-IV/eBOSS) or the Dark Energy Spectroscopic Instrument (DESI), will use emission-line galaxies (ELGs) to probe cosmological models by mapping the large-scale structure of the Universe in the redshift range 0.6 < z < 1.7. With current data, we explore the halo-galaxy connection by measuring three clustering properties of g-selected ELGs as matter tracers in the redshift range 0.6 < z < 1: (i) the redshift-space two-point correlation function using spectroscopic redshifts from the BOSS ELG sample and VIPERS; (ii) the angular two-point correlation function on the footprint of the CFHT-LS; (iii) the galaxy-galaxy lensing signal around the ELGs using the CFHTLenS. We interpret these observations by mapping them on to the latest high-resolution MultiDark Planck N-body simulation, using a novel (Sub)Halo-Abundance Matching technique that accounts for the ELG incompleteness. ELGs at z ~ 0.8 live in haloes of (1 ± 0.5) × 1012 h-1M⊙ and 22.5 ± 2.5 per cent of them are satellites belonging to a larger halo. The halo occupation distribution of ELGs indicates that we are sampling the galaxies in which stars form in the most efficient way, according to their stellar-to-halo mass ratio.",
author = "Ginevra Favole and Johan Comparat and Francisco Prada and Gustavo Yepes and Eric Jullo and Anna Niemiec and Kneib, {Jean Paul} and Rodr{\'i}guez-Torres, {Sergio A.R.} and Anatoly Klypin and Skibba, {Ramin A.} and McBride, {Cameron K.} and Eisenstein, {Daniel J.} and Schlegel, {David J.} and Nuza, {Sebast{\'i}n E.} and Chuang, {Chia Hsun} and Timothe{\'e} Delubac and Christophe Y{\`e}che and Schneider, {Donald P.}",
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Favole, G, Comparat, J, Prada, F, Yepes, G, Jullo, E, Niemiec, A, Kneib, JP, Rodríguez-Torres, SAR, Klypin, A, Skibba, RA, McBride, CK, Eisenstein, DJ, Schlegel, DJ, Nuza, SE, Chuang, CH, Delubac, T, Yèche, C & Schneider, DP 2016, 'Clustering properties of g-selected galaxies at z ~ 0.8', Monthly Notices of the Royal Astronomical Society, vol. 461, no. 4, pp. 3421-3431. https://doi.org/10.1093/mnras/stw1483

Clustering properties of g-selected galaxies at z ~ 0.8. / Favole, Ginevra; Comparat, Johan; Prada, Francisco; Yepes, Gustavo; Jullo, Eric; Niemiec, Anna; Kneib, Jean Paul; Rodríguez-Torres, Sergio A.R.; Klypin, Anatoly; Skibba, Ramin A.; McBride, Cameron K.; Eisenstein, Daniel J.; Schlegel, David J.; Nuza, Sebastín E.; Chuang, Chia Hsun; Delubac, Timotheé; Yèche, Christophe; Schneider, Donald P.

In: Monthly Notices of the Royal Astronomical Society, Vol. 461, No. 4, 01.10.2016, p. 3421-3431.

Research output: Contribution to journalArticle

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T1 - Clustering properties of g-selected galaxies at z ~ 0.8

AU - Favole, Ginevra

AU - Comparat, Johan

AU - Prada, Francisco

AU - Yepes, Gustavo

AU - Jullo, Eric

AU - Niemiec, Anna

AU - Kneib, Jean Paul

AU - Rodríguez-Torres, Sergio A.R.

AU - Klypin, Anatoly

AU - Skibba, Ramin A.

AU - McBride, Cameron K.

AU - Eisenstein, Daniel J.

AU - Schlegel, David J.

AU - Nuza, Sebastín E.

AU - Chuang, Chia Hsun

AU - Delubac, Timotheé

AU - Yèche, Christophe

AU - Schneider, Donald P.

PY - 2016/10/1

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N2 - Current and future large redshift surveys, as the Sloan Digital Sky Survey IV extended Baryon Oscillation Spectroscopic Survey (SDSS-IV/eBOSS) or the Dark Energy Spectroscopic Instrument (DESI), will use emission-line galaxies (ELGs) to probe cosmological models by mapping the large-scale structure of the Universe in the redshift range 0.6 < z < 1.7. With current data, we explore the halo-galaxy connection by measuring three clustering properties of g-selected ELGs as matter tracers in the redshift range 0.6 < z < 1: (i) the redshift-space two-point correlation function using spectroscopic redshifts from the BOSS ELG sample and VIPERS; (ii) the angular two-point correlation function on the footprint of the CFHT-LS; (iii) the galaxy-galaxy lensing signal around the ELGs using the CFHTLenS. We interpret these observations by mapping them on to the latest high-resolution MultiDark Planck N-body simulation, using a novel (Sub)Halo-Abundance Matching technique that accounts for the ELG incompleteness. ELGs at z ~ 0.8 live in haloes of (1 ± 0.5) × 1012 h-1M⊙ and 22.5 ± 2.5 per cent of them are satellites belonging to a larger halo. The halo occupation distribution of ELGs indicates that we are sampling the galaxies in which stars form in the most efficient way, according to their stellar-to-halo mass ratio.

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Favole G, Comparat J, Prada F, Yepes G, Jullo E, Niemiec A et al. Clustering properties of g-selected galaxies at z ~ 0.8. Monthly Notices of the Royal Astronomical Society. 2016 Oct 1;461(4):3421-3431. https://doi.org/10.1093/mnras/stw1483