Quantifying the effect of field variance on the H$\alpha$ luminosity function with the New Numerical Galaxy Catalogue (${\nu }^2$GC)

Abstract

We construct a model of H$\alpha$ emitters (HAEs) based on a semi-analytic galaxy formation model, the New Numerical Galaxy Catalog (${\nu }^2$GC). In this paper, we report our estimate for the field variance of the HAE distribution. By calculating the H$\alpha$ luminosity from the star-formation rate of galaxies, our model well reproduces the observed H$\alpha$ luminosity function (LF) at $z=0.4$. The large volume of the ${\nu }^2$GC makes it possible to examine the spatial distribution of HAEs over a region of (411.8 Mpc)${}^3$ in the comoving scale. The surface number density of $z=0.4$ HAEs with $L_{\mathrm{H}\alpha }\ge 10^{40}$ erg s${}^{-1}$ is 308.9 deg${}^{-2}$. We have confirmed that the HAE is a useful tracer for the large-scale structure of the Universe because of their significant overdensity ($>$ 5$\sigma$) at clusters and the filamentary structures. The H$\alpha$ LFs within a survey area of $\sim$2 deg${}^2$ (typical for previous observational studies) show a significant field variance up to $\sim$1 dex. Based on our model, one can estimate the variance on the H$\alpha$ LFs within given survey areas.

arXiv comment13 pages, 11 figures, accepted for publication in the ApJ

References in corpus (72)

• Stellar population synthesis at the resolution of 2003
• Galactic Stellar and Substellar Initial Mass Function
• Star Formation in Galaxies Along the Hubble Sequence
• Planck 2013 results. XVI. Cosmological parameters
• The Dust Content and Opacity of Actively Star-Forming Galaxies
• Simulating the joint evolution of quasars, galaxies and their large-scale distribution
• Star Formation in AEGIS Field Galaxies since z=1.1 : The Dominance of Gradually Declining Star Formation, and the Main Sequence of Star-Forming Galaxies
• The reversal of the star formation-density relation in the distant universe
• A Highly Consistent Framework for the Evolution of the Star-Forming "Main Sequence" from z~0-6
• The Hyper Suprime-Cam SSP Survey: Overview and Survey Design
• Extragalactic Science, Cosmology and Galactic Archaeology with the Subaru Prime Focus Spectrograph (PFS)
• First Data Release of the Hyper Suprime-Cam Subaru Strategic Program
• The Subaru/XMM-Newton Deep Survey (SXDS). IV. Evolution of Lya Emitters from z=3.1 to 5.7 in the 1 deg^2 Field: Luminosity Functions and AGN
• [OII] as a Star Formation Rate Indicator
• On Star Formation Rates and Star Formation Histories of Galaxies out to z ~ 3
• A large Hα survey at z=2.23, 1.47, 0.84 & 0.40: the 11 Gyr evolution of star-forming galaxies from HiZELS
• Cosmic Variance and Its Effect on the Luminosity Function Determination in Deep High z Surveys
• A Subaru Search for Ly-alpha Blobs in and around the Proto-cluster Region at Redshift z=3.1
• Star formation and mass assembly in high redshift galaxies
• Optical Star-Formation Rate Indicators
• Cosmic Variance in the Great Observatories Origins Deep Survey
• The clustering of galaxies in the SDSS-III Baryon Oscillation Spectroscopic Survey: Analysis of potential systematics
• Predicting dust extinction from the stellar mass of a galaxy
• Subaru Deep Survey II. Luminosity Functions and Clustering Properties of Lya Emitters at z=4.86 in the Subaru Deep Field
• The FMOS-COSMOS survey of star-forming galaxies at z ~ 1.6. I. Hα-based star formation rates and dust extinction
• Systematic Identification of LAEs for Visible Exploration and Reionization Research Using Subaru HSC (SILVERRUSH). I. Program Strategy and Clustering Properties of ~2,000 Lya Emitters at z=6-7 over the 0.3-0.5 Gpc${}^2$ Survey Area
• Star formation at z=1.47 from HiZELS: An Hα+[OII] double-blind study
• GOODS-HERSCHEL: star formation, dust attenuation and the FIR-radio correlation on the Main Sequence of star-forming galaxies up to z~4
• The Luminosity Function and Star Formation Rate between Redshifts of 0.07 and 1.47 for Narrow-band Emitters in the Subaru Deep Field
• HiZELS: a high redshift survey of H-alpha emitters. I: the cosmic star-formation rate and clustering at z=2.23
• The dependence of star formation activity on environment and stellar mass at z~1 from the HiZELS H-alpha survey
• The stellar mass function of star-forming galaxies and the mass-dependent SFR function since z=2.23 from HiZELS
• The star-formation history of K-selected galaxies
• Clustering of Sloan Digital Sky Survey III Photometric Luminous Galaxies: The Measurement, Systematics and Cosmological Implications
• Prime Focus Spectrograph (PFS) for the Subaru Telescope: Overview, recent progress, and future perspectives
• SILVERRUSH. III. Deep Optical and Near-Infrared Spectroscopy for Lya and UV-Nebular Lines of Bright Lya Emitters at z=6-7
• Subaru Deep Survey. IV. Discovery of a Large-Scale Structure at Redshift \simeq 5
• Massive starburst galaxies in a z=2.16 proto-cluster unveiled by panoramic H-alpha mapping
• Cosmic Web and Star Formation Activity in Galaxies at z~1
• The H-alpha Luminosity Function and Star Formation Rate Volume Density at z=0.8 from the NEWFIRM H-alpha Survey
• H-alpha emitters in z~2 proto-clusters: evidence for faster evolution in dense environments
• Evolution of the H$\beta$+[OIII] and [OII] luminosity functions and the [OII] star-formation history of the Universe up to $z$ ~ 5 from HiZELS
• A Panoramic Halpha Imaging Survey of the z=0.4 cluster Cl0024.0+1652 with Subaru
• Obscured star formation at z = 0.84 with HiZELS: the relationship between star formation rate and H-alpha or ultra-violet dust extinction
• The MUSE Hubble Ultra Deep Field Survey XI. Constraining the low-mass end of the stellar mass - star formation rate relation at $z<1$
• A fundamental metallicity relation for galaxies at z = 0.84 - 1.47 from HiZELS
• High star formation activity in the central region of a distant cluster at z=1.46
• Predicting Future Space Near-IR Grism Surveys using the WFC3 Infrared Spectroscopic Parallels Survey
• Discovery of an Excess of Halpha Emitters around 4C 23.56 at z=2.48
• The ${\nu }^2$GC Simulations : Quantifying the Dark Side of the Universe in the Planck Cosmology
• Numerical Galaxy Catalog -I. A Semi-analytic Model of Galaxy Formation with N-body simulations
• The role of cluster mergers and travelling shocks in shaping the H$\alpha$ luminosity function at $\mathbf{z}\sim 0.2$: `sausage' and `toothbrush' clusters
• Red Star Forming Galaxies and Their Environment at z=0.4 Revealed by Panoramic H-alpha Imaging
• A Dual Narrowband Survey for Hα Emitters at z=2.2: Demonstration of the Technique and Constraints on the Hα Luminosity Function
• Boötes-HiZELS: an optical to near-infrared survey of emission-line galaxies at $\mathbf{z}=0.4-4.7$
• The evolution of clustering length, large-scale bias and host halo mass at 2<z<5 in the VIMOS Ultra Deep Survey (VUDS)
• A large H$\alpha$ survey of star formation in relaxed and merging galaxy cluster environments at $z\sim 0.15-0.3$
• Direct evidence for Ly$\alpha$ depletion in the protocluster core
• Evolution of Star Formation in the UKIDSS Ultra Deep Survey Field - I. Luminosity Functions and Cosmic Star Formation Rate out to z=1.6
• An H-alpha search for over-dense regions at z=2.23
• On the different levels of dust attenuation to nebular and stellar light in star-forming galaxies
• Low redshift AGN in the Hamburg/ESO Survey: I. The local AGN luminosity function
• The most luminous H$\alpha$ emitters at z~0.8-2.23 from HiZELS: evolution of AGN and star-forming galaxies
• A 16 deg${}^2$ survey of emission-line galaxies at z<1.5 in HSC-SSP PDR1
• The New Numerical Galaxy Catalog (${\nu }^2$GC): An Updated Semi-analytic Model of Galaxy and AGN with Large Cosmological N-body Simulation
• Anti-hierarchical evolution of the Active Galactic Nucleus space density in a hierarchical universe
• Calibrating [OII] star-formation rates at z>1 from dual Hα-[OII] imaging from HiZELS
• The New Numerical Galaxy Catalogue (ν^2 GC): Properties of Active Galactic Nuclei and Their Host Galaxies
• [OIII] emission line as a tracer of star-forming galaxies at high redshifts: Comparison between H$\alpha$ and [OIII] emitters at $z$=2.23 in HiZELS
• Characterization of the distribution of the Llyαemitters in the 53W002 field at z = 2.4
• The Impact of Dust in Host Galaxies on Quasar Luminosity Functions
• A search for Ly-alpha emitters around a concentrated-region of strong Ly-alpha absorbers at z=2.3

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