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CF-HiZELS, an ∼10 deg2 emission-line survey with spectroscopic follow-up: Hα, [O III] + Hβ and [O II] luminosity functions at z = 0.8, 1.4 and 2.2

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CF-HiZELS, an ∼10 deg2 emission-line survey with spectroscopic follow-up : Hα, [O III] + Hβ and [O II] luminosity functions at z = 0.8, 1.4 and 2.2. / Sobral, David; Matthee, Jorryt; N. Best, Philip; Smail, Ian; A. Khostovan, Ali; Milvang-Jensen, Bo; Kim, Jae-Woo; Stott, John; Calhau, Joao; Nayyeri, Hooshang; Mobasher, Bahram.

In: Monthly Notices of the Royal Astronomical Society, Vol. 451, No. 3, 11.08.2015, p. 2303-2323.

Research output: Contribution to journalJournal article

Harvard

Sobral, D, Matthee, J, N. Best, P, Smail, I, A. Khostovan, A, Milvang-Jensen, B, Kim, J-W, Stott, J, Calhau, J, Nayyeri, H & Mobasher, B 2015, 'CF-HiZELS, an ∼10 deg2 emission-line survey with spectroscopic follow-up: Hα, [O III] + Hβ and [O II] luminosity functions at z = 0.8, 1.4 and 2.2', Monthly Notices of the Royal Astronomical Society, vol. 451, no. 3, pp. 2303-2323. https://doi.org/10.1093/mnras/stv1076

APA

Sobral, D., Matthee, J., N. Best, P., Smail, I., A. Khostovan, A., Milvang-Jensen, B., ... Mobasher, B. (2015). CF-HiZELS, an ∼10 deg2 emission-line survey with spectroscopic follow-up: Hα, [O III] + Hβ and [O II] luminosity functions at z = 0.8, 1.4 and 2.2. Monthly Notices of the Royal Astronomical Society, 451(3), 2303-2323. https://doi.org/10.1093/mnras/stv1076

Vancouver

Sobral D, Matthee J, N. Best P, Smail I, A. Khostovan A, Milvang-Jensen B et al. CF-HiZELS, an ∼10 deg2 emission-line survey with spectroscopic follow-up: Hα, [O III] + Hβ and [O II] luminosity functions at z = 0.8, 1.4 and 2.2. Monthly Notices of the Royal Astronomical Society. 2015 Aug 11;451(3):2303-2323. https://doi.org/10.1093/mnras/stv1076

Author

Sobral, David ; Matthee, Jorryt ; N. Best, Philip ; Smail, Ian ; A. Khostovan, Ali ; Milvang-Jensen, Bo ; Kim, Jae-Woo ; Stott, John ; Calhau, Joao ; Nayyeri, Hooshang ; Mobasher, Bahram. / CF-HiZELS, an ∼10 deg2 emission-line survey with spectroscopic follow-up : Hα, [O III] + Hβ and [O II] luminosity functions at z = 0.8, 1.4 and 2.2. In: Monthly Notices of the Royal Astronomical Society. 2015 ; Vol. 451, No. 3. pp. 2303-2323.

Bibtex

@article{b56c8897d908409f9dfe2d0cd7a8ac4f,
title = "CF-HiZELS, an ∼10 deg2 emission-line survey with spectroscopic follow-up: Hα, [O III] + Hβ and [O II] luminosity functions at z = 0.8, 1.4 and 2.2",
abstract = "We present results from the largest contiguous narrow-band survey in the near-infrared. We have used WIRCam/CFHT and the lowOH2 filter (1.187$\pm$0.005 \mu m) to survey ~10 deg$^2$ of contiguous extragalactic sky in the SA22 field. A total of ~6000 candidate emission-line galaxies are found. We use deep CFHTLS $ugriz$ and UKIDSS DXS $J$ and $K$ data to obtain robust photometric redshifts. We combine our data with HiZELS (COSMOS+UDS) and explore VVDS, VIPERS, KMOS and obtain our own spectroscopic follow-up with FMOS and MOSFIRE to derive large samples of high-redshift emission-line selected galaxies: 3471 H\alpha\ emitters at z=0.8, 1343 [OIII]+H\beta\ emitters at z=1.4 and 572 [OII] emitters at z=2.2. We probe co-moving volumes of >10$^6$ Mpc$^3$ and find significant over-densities, including an 8.5\sigma\ (spectroscopically confirmed) over-density of H\alpha\ emitters at z=0.81. We derive H\alpha, [OIII]+H\beta\ and [OII] luminosity functions at z=0.8, 1.4 and 2.2, respectively, and present implications for future surveys such as EUCLID. Our uniquely large volumes/areas allow us to sub-divide the samples in thousands of randomised combinations of areas and provide a robust empirical measurement of sample/cosmic variance. We show that surveys for star-forming/emission-line galaxies at a depth similar to ours can only overcome cosmic-variance (errors 5x10$^5$ Mpc$^3$; errors on L$^*$ and \Phi$^*$ due to sample (cosmic) variance on surveys probing ~10${^4}$ Mpc$^3$ and ~10$^5$ Mpc$^3$ are typically very high: ~300{\%} and ~40-60{\%}, respectively.",
keywords = "galaxies: evolution, galaxies: formation, galaxies: luminosity function, mass function, cosmology: observations, early Universe, large-scale structure of Universe",
author = "David Sobral and Jorryt Matthee and {N. Best}, Philip and Ian Smail and {A. Khostovan}, Ali and Bo Milvang-Jensen and Jae-Woo Kim and John Stott and Joao Calhau and Hooshang Nayyeri and Bahram Mobasher",
year = "2015",
month = "8",
day = "11",
doi = "10.1093/mnras/stv1076",
language = "English",
volume = "451",
pages = "2303--2323",
journal = "Monthly Notices of the Royal Astronomical Society",
issn = "0035-8711",
publisher = "OXFORD UNIV PRESS",
number = "3",

}

RIS

TY - JOUR

T1 - CF-HiZELS, an ∼10 deg2 emission-line survey with spectroscopic follow-up

T2 - Hα, [O III] + Hβ and [O II] luminosity functions at z = 0.8, 1.4 and 2.2

AU - Sobral, David

AU - Matthee, Jorryt

AU - N. Best, Philip

AU - Smail, Ian

AU - A. Khostovan, Ali

AU - Milvang-Jensen, Bo

AU - Kim, Jae-Woo

AU - Stott, John

AU - Calhau, Joao

AU - Nayyeri, Hooshang

AU - Mobasher, Bahram

PY - 2015/8/11

Y1 - 2015/8/11

N2 - We present results from the largest contiguous narrow-band survey in the near-infrared. We have used WIRCam/CFHT and the lowOH2 filter (1.187$\pm$0.005 \mu m) to survey ~10 deg$^2$ of contiguous extragalactic sky in the SA22 field. A total of ~6000 candidate emission-line galaxies are found. We use deep CFHTLS $ugriz$ and UKIDSS DXS $J$ and $K$ data to obtain robust photometric redshifts. We combine our data with HiZELS (COSMOS+UDS) and explore VVDS, VIPERS, KMOS and obtain our own spectroscopic follow-up with FMOS and MOSFIRE to derive large samples of high-redshift emission-line selected galaxies: 3471 H\alpha\ emitters at z=0.8, 1343 [OIII]+H\beta\ emitters at z=1.4 and 572 [OII] emitters at z=2.2. We probe co-moving volumes of >10$^6$ Mpc$^3$ and find significant over-densities, including an 8.5\sigma\ (spectroscopically confirmed) over-density of H\alpha\ emitters at z=0.81. We derive H\alpha, [OIII]+H\beta\ and [OII] luminosity functions at z=0.8, 1.4 and 2.2, respectively, and present implications for future surveys such as EUCLID. Our uniquely large volumes/areas allow us to sub-divide the samples in thousands of randomised combinations of areas and provide a robust empirical measurement of sample/cosmic variance. We show that surveys for star-forming/emission-line galaxies at a depth similar to ours can only overcome cosmic-variance (errors 5x10$^5$ Mpc$^3$; errors on L$^*$ and \Phi$^*$ due to sample (cosmic) variance on surveys probing ~10${^4}$ Mpc$^3$ and ~10$^5$ Mpc$^3$ are typically very high: ~300% and ~40-60%, respectively.

AB - We present results from the largest contiguous narrow-band survey in the near-infrared. We have used WIRCam/CFHT and the lowOH2 filter (1.187$\pm$0.005 \mu m) to survey ~10 deg$^2$ of contiguous extragalactic sky in the SA22 field. A total of ~6000 candidate emission-line galaxies are found. We use deep CFHTLS $ugriz$ and UKIDSS DXS $J$ and $K$ data to obtain robust photometric redshifts. We combine our data with HiZELS (COSMOS+UDS) and explore VVDS, VIPERS, KMOS and obtain our own spectroscopic follow-up with FMOS and MOSFIRE to derive large samples of high-redshift emission-line selected galaxies: 3471 H\alpha\ emitters at z=0.8, 1343 [OIII]+H\beta\ emitters at z=1.4 and 572 [OII] emitters at z=2.2. We probe co-moving volumes of >10$^6$ Mpc$^3$ and find significant over-densities, including an 8.5\sigma\ (spectroscopically confirmed) over-density of H\alpha\ emitters at z=0.81. We derive H\alpha, [OIII]+H\beta\ and [OII] luminosity functions at z=0.8, 1.4 and 2.2, respectively, and present implications for future surveys such as EUCLID. Our uniquely large volumes/areas allow us to sub-divide the samples in thousands of randomised combinations of areas and provide a robust empirical measurement of sample/cosmic variance. We show that surveys for star-forming/emission-line galaxies at a depth similar to ours can only overcome cosmic-variance (errors 5x10$^5$ Mpc$^3$; errors on L$^*$ and \Phi$^*$ due to sample (cosmic) variance on surveys probing ~10${^4}$ Mpc$^3$ and ~10$^5$ Mpc$^3$ are typically very high: ~300% and ~40-60%, respectively.

KW - galaxies: evolution

KW - galaxies: formation

KW - galaxies: luminosity function, mass function

KW - cosmology: observations

KW - early Universe

KW - large-scale structure of Universe

U2 - 10.1093/mnras/stv1076

DO - 10.1093/mnras/stv1076

M3 - Journal article

VL - 451

SP - 2303

EP - 2323

JO - Monthly Notices of the Royal Astronomical Society

JF - Monthly Notices of the Royal Astronomical Society

SN - 0035-8711

IS - 3

ER -