---
_id: '11576'
abstract:
- lang: eng
text: We use new near-infrared spectroscopic observations to investigate the nature
and evolution of the most luminous Hα emitters at z ∼ 0.8–2.23, which evolve strongly
in number density over this period, and compare them to more typical Hα emitters.
We study 59 luminous Hα emitters with LHα > L∗Hα, roughly equally split per redshift
slice at z ∼ 0.8, 1.47 and 2.23 from the HiZELS and CF-HiZELS surveys. We find
that, overall, 30 ± 8 per cent are active galactic nuclei [AGNs; 80 ± 30 per cent
of these AGNs are broad-line AGNs, BL-AGNs], and we find little to no evolution
in the AGN fraction with redshift, within the errors. However, the AGN fraction
increases strongly with Hα luminosity and correlates best with LHα/L∗Hα(z). While
LHα ≤ L∗Hα(z) Hα emitters are largely dominated by star-forming galaxies (>80
per cent), the most luminous Hα emitters (LHα>10L∗Hα(z)) at any cosmic time
are essentially all BL-AGN. Using our AGN-decontaminated sample of luminous star-forming
galaxies, and integrating down to a fixed Hα luminosity, we find a factor of ∼1300
evolution in the star formation rate density from z = 0 to 2.23. This is much
stronger than the evolution from typical Hα star-forming galaxies and in line
with the evolution seen for constant luminosity cuts used to select ‘ultraluminous’
infrared galaxies and/or sub-millimetre galaxies. By taking into account the evolution
in the typical Hα luminosity, we show that the most strongly star-forming Hα-selected
galaxies at any epoch (LHα>L∗Hα(z)) contribute the same fractional amount of
≈15 per cent to the total star formation rate density, at least up to z = 2.23.
acknowledgement: "The authors would like to thank the anonymous reviewer for the many
helpful comments and suggestions which greatly improved the clarity and quality
of this work. DS and SAK acknowledge financial support from the Netherlands Organisation
for Scientific research (NWO) through a Veni fellowship. DS also acknowledges funding
from FCT through an FCT Investigator Starting Grant and Start-up Grant (IF/01154/2012/CP0189/CT0010)
and from FCT grant PEst-OE/FIS/UI2751/2014. Part of this project was undertaken
during the inaugural Leiden/ESA Astrophysics Program for Summer Students (LEAPS).
IRS acknowledges support from STFC (ST/L00075X/1), the ERC Advanced Investigator
programme DUSTYGAL 321334 and a Royal Society/Wolfson merit award. CH acknowledges
support from STFC. Based on observations made with ESO Telescopes at the La Silla
Paranal Observatory under programme ID 087.A-0337 and ID 089.A-0965. Also based
on data from the Telescopio Nazionale Galileo, with time awarded through OPTICON
programmes 2011A/026 and 2012A020 and the William Herschel Telescope under programme
W12BN007. The William Herschel Telescope is operated on the island of La Palma by
the Isaac Newton Group in the Spanish\r\nObservatorio del Roque de los Muchachos
of the Instituto de Astrofisica de Canarias. The authors wish to thank all the help
given by the telescope staff from all the observatories used in this study: ESO
staff in La Silla, and the TNG and WHT staff in La Palma. This publication makes
use of data products from the Two Micron All-Sky Survey, which is a joint project
of the University of Massachusetts and the Infrared Processing and Analysis Center/California
Institute of Technology, funded by the National Aeronautics and Space Administration
and the National Science Foundation."
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: David
full_name: Sobral, David
last_name: Sobral
- first_name: Saul A.
full_name: Kohn, Saul A.
last_name: Kohn
- first_name: Philip N.
full_name: Best, Philip N.
last_name: Best
- first_name: Ian
full_name: Smail, Ian
last_name: Smail
- first_name: Chris M.
full_name: Harrison, Chris M.
last_name: Harrison
- first_name: John
full_name: Stott, John
last_name: Stott
- first_name: João
full_name: Calhau, João
last_name: Calhau
- first_name: Jorryt J
full_name: Matthee, Jorryt J
id: 7439a258-f3c0-11ec-9501-9df22fe06720
last_name: Matthee
orcid: 0000-0003-2871-127X
citation:
ama: 'Sobral D, Kohn SA, Best PN, et al. The most luminous H α emitters at z ∼ 0.8–2.23
from HiZELS: Evolution of AGN and star-forming galaxies. Monthly Notices of
the Royal Astronomical Society. 2016;457(2):1739-1752. doi:10.1093/mnras/stw022'
apa: 'Sobral, D., Kohn, S. A., Best, P. N., Smail, I., Harrison, C. M., Stott, J.,
… Matthee, J. J. (2016). The most luminous H α emitters at z ∼ 0.8–2.23 from HiZELS:
Evolution of AGN and star-forming galaxies. Monthly Notices of the Royal Astronomical
Society. Oxford University Press. https://doi.org/10.1093/mnras/stw022'
chicago: 'Sobral, David, Saul A. Kohn, Philip N. Best, Ian Smail, Chris M. Harrison,
John Stott, João Calhau, and Jorryt J Matthee. “The Most Luminous H α Emitters
at z ∼ 0.8–2.23 from HiZELS: Evolution of AGN and Star-Forming Galaxies.” Monthly
Notices of the Royal Astronomical Society. Oxford University Press, 2016.
https://doi.org/10.1093/mnras/stw022.'
ieee: 'D. Sobral et al., “The most luminous H α emitters at z ∼ 0.8–2.23
from HiZELS: Evolution of AGN and star-forming galaxies,” Monthly Notices of
the Royal Astronomical Society, vol. 457, no. 2. Oxford University Press,
pp. 1739–1752, 2016.'
ista: 'Sobral D, Kohn SA, Best PN, Smail I, Harrison CM, Stott J, Calhau J, Matthee
JJ. 2016. The most luminous H α emitters at z ∼ 0.8–2.23 from HiZELS: Evolution
of AGN and star-forming galaxies. Monthly Notices of the Royal Astronomical Society.
457(2), 1739–1752.'
mla: 'Sobral, David, et al. “The Most Luminous H α Emitters at z ∼ 0.8–2.23 from
HiZELS: Evolution of AGN and Star-Forming Galaxies.” Monthly Notices of the
Royal Astronomical Society, vol. 457, no. 2, Oxford University Press, 2016,
pp. 1739–52, doi:10.1093/mnras/stw022.'
short: D. Sobral, S.A. Kohn, P.N. Best, I. Smail, C.M. Harrison, J. Stott, J. Calhau,
J.J. Matthee, Monthly Notices of the Royal Astronomical Society 457 (2016) 1739–1752.
date_created: 2022-07-13T12:50:36Z
date_published: 2016-04-01T00:00:00Z
date_updated: 2022-08-19T08:15:21Z
day: '01'
doi: 10.1093/mnras/stw022
extern: '1'
external_id:
arxiv:
- '1601.02266'
intvolume: ' 457'
issue: '2'
keyword:
- Space and Planetary Science
- Astronomy and Astrophysics
- 'galaxies: evolution'
- 'galaxies: high-redshift'
- 'cosmology: observations'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://arxiv.org/abs/1601.02266
month: '04'
oa: 1
oa_version: Preprint
page: 1739-1752
publication: Monthly Notices of the Royal Astronomical Society
publication_identifier:
eissn:
- 1365-2966
issn:
- 0035-8711
publication_status: published
publisher: Oxford University Press
quality_controlled: '1'
scopus_import: '1'
status: public
title: 'The most luminous H α emitters at z ∼ 0.8–2.23 from HiZELS: Evolution of AGN
and star-forming galaxies'
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 457
year: '2016'
...
---
_id: '11580'
abstract:
- lang: eng
text: 'We present results from the largest contiguous narrow-band survey in the
near-infrared. We have used the wide-field infrared camera/Canada–France–Hawaii
Telescope and the lowOH2 filter (1.187 ± 0.005 μm) to survey ≈10 deg2 of contiguous
extragalactic sky in the SA22 field. A total of ∼6000 candidate emission-line
galaxies are found. We use deep ugrizJK data to obtain robust photometric redshifts.
We combine our data with the High-redshift(Z) Emission Line Survey (HiZELS), explore
spectroscopic surveys (VVDS, VIPERS) and obtain our own spectroscopic follow-up
with KMOS, FMOS and MOSFIRE to derive large samples of high-redshift emission-line
selected galaxies: 3471 Hα emitters at z = 0.8, 1343 [O III] + Hβ emitters at
z = 1.4 and 572 [O II] emitters at z = 2.2. We probe comoving volumes of >106
Mpc3 and find significant overdensities, including an 8.5σ (spectroscopically
confirmed) overdensity of Hα emitters at z = 0.81. We derive Hα, [O III] + Hβ
and [O II] luminosity functions at z = 0.8, 1.4, 2.2, respectively, and present
implications for future surveys such as Euclid. Our uniquely large volumes/areas
allow us to subdivide the samples in thousands of randomized 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 <10 per cent) if they are based on volumes
>5 × 105 Mpc3; errors on L* and ϕ* due to sample (cosmic) variance on surveys
probing ∼104 and ∼105 Mpc3 are typically very high: ∼300 and ∼40–60 per cent,
respectively.'
acknowledgement: The authors wish to thank the anonymous reviewer for many helpful
comments and suggestions which greatly improved the clarity and quality of this
work. DS acknowledges financial support from the Netherlands Organization for Scientific
research (NWO) through a Veni fellowship, from FCT through an FCT Investigator Starting
Grant and Start-up Grant (IF/01154/2012/CP0189/CT0010), from FCT grant PEst-OE/FIS/UI2751/2014,
and from LSF and LKBF. JM acknowledges the award of a Huygens PhD fellowship. PNB
is grateful for support from STFC. IRS acknowledges support from STFC, a Leverhulme
Fellowship, the ERC Advanced Investigator programme DUSTYGAL and a Royal Society/Wolfson
Merit Award. BMJ acknowledges support from the ERC-StG grant EGGS-278202. The Dark
Cosmology Centre is funded by the DNRF. The Dark Cosmology Centre is funded by the
DNRF. JWK acknowledges support from the National Research Foundation of Korea (NRF)
grant, no. 2008-0060544, funded by the Korea government (MSIP). JPS acknowledges
support from STFC (ST/I001573/1). JC acknowledges support from the FCT-IF grant
IF/01154/2012/CP0189/CT0010. The work was only possible due to OPTICON/FP7 and the
invaluable access that it granted to the CFHT telescope. We would also like to acknowledge
the excellent work done by CFHT staff in conducting the observations in service
mode, and on delivering truly excellent data. We are also tremendously thankful
to Kentaro Aoki for the incredible support while observing at Subaru with FMOS,
and also to the Keck staff for the help with the observations with MOSFIRE. This
work is based on observations obtained with WIRCam on the CFHT, OPTICON programme
2011B/029, 2012A019 and 2012B/016. Based on observations made with ESO telescopes
at the La Silla Paranal Observatory under programmes IDs 60.A-9460 (data can be
accessed through the ESO data archive), 087.A 0337 and 089.A-0965. Based on observations
done with FMOS on Subaru under programme S14A-084, and on MOSFIRE/Keck observations
under programme U066M. Part of the data on which this analysis is based are available
from Sobral et al. (2013a). Dedicated to the memory of C. M. Sobral (1953-2014).
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: D.
full_name: Sobral, D.
last_name: Sobral
- first_name: Jorryt J
full_name: Matthee, Jorryt J
id: 7439a258-f3c0-11ec-9501-9df22fe06720
last_name: Matthee
orcid: 0000-0003-2871-127X
- first_name: P. N.
full_name: Best, P. N.
last_name: Best
- first_name: I.
full_name: Smail, I.
last_name: Smail
- first_name: A. A.
full_name: Khostovan, A. A.
last_name: Khostovan
- first_name: B.
full_name: Milvang-Jensen, B.
last_name: Milvang-Jensen
- first_name: J.-W.
full_name: Kim, J.-W.
last_name: Kim
- first_name: J.
full_name: Stott, J.
last_name: Stott
- first_name: J.
full_name: Calhau, J.
last_name: Calhau
- first_name: H.
full_name: Nayyeri, H.
last_name: Nayyeri
- first_name: B.
full_name: Mobasher, B.
last_name: Mobasher
citation:
ama: 'Sobral D, Matthee JJ, Best PN, 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;451(3):2303-2323. doi:10.1093/mnras/stv1076'
apa: 'Sobral, D., Matthee, J. J., Best, P. N., Smail, I., Khostovan, A. 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. Oxford University
Press. https://doi.org/10.1093/mnras/stv1076'
chicago: 'Sobral, D., Jorryt J Matthee, P. N. Best, I. Smail, A. A. Khostovan, B.
Milvang-Jensen, J.-W. Kim, 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.
Oxford University Press, 2015. https://doi.org/10.1093/mnras/stv1076.'
ieee: 'D. Sobral 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,
vol. 451, no. 3. Oxford University Press, pp. 2303–2323, 2015.'
ista: 'Sobral D, Matthee JJ, Best PN, Smail I, Khostovan AA, 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. 451(3),
2303–2323.'
mla: 'Sobral, D., 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, vol. 451, no.
3, Oxford University Press, 2015, pp. 2303–23, doi:10.1093/mnras/stv1076.'
short: D. Sobral, J.J. Matthee, P.N. Best, I. Smail, A.A. Khostovan, B. Milvang-Jensen,
J.-W. Kim, J. Stott, J. Calhau, H. Nayyeri, B. Mobasher, Monthly Notices of the
Royal Astronomical Society 451 (2015) 2303–2323.
date_created: 2022-07-14T09:02:22Z
date_published: 2015-08-11T00:00:00Z
date_updated: 2024-10-14T11:36:57Z
day: '11'
doi: 10.1093/mnras/stv1076
extern: '1'
external_id:
arxiv:
- '1502.06602'
intvolume: ' 451'
issue: '3'
keyword:
- Space and Planetary Science
- Astronomy and Astrophysics
- 'galaxies: evolution'
- 'galaxies: formation'
- 'galaxies: luminosity function'
- mass function
- 'cosmology: observations'
- early Universe
- large-scale structure of Universe
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://arxiv.org/abs/1502.06602
month: '08'
oa: 1
oa_version: Preprint
page: 2303-2323
publication: Monthly Notices of the Royal Astronomical Society
publication_identifier:
eissn:
- 1365-2966
issn:
- 0035-8711
publication_status: published
publisher: Oxford University Press
quality_controlled: '1'
scopus_import: '1'
status: public
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 '
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 451
year: '2015'
...
---
_id: '11583'
abstract:
- lang: eng
text: 'Candidate galaxies at redshifts of z ∼ 10 are now being found in extremely
deep surveys, probing very small areas. As a consequence, candidates are very
faint, making spectroscopic confirmation practically impossible. In order to overcome
such limitations, we have undertaken the CF-HiZELS survey, which is a large-area,
medium-depth near-infrared narrow-band survey targeted at z = 8.8 Lyman α (Lyα)
emitters (LAEs) and covering 10 deg2 in part of the SSA22 field with the Canada–France–Hawaii
Telescope (CFHT). We surveyed a comoving volume of 4.7 × 106 Mpc3 to a Lyα luminosity
limit of 6.3 × 1043舁erg舁s−1. We look for Lyα candidates by applying the following
criteria: (i) clear emission-line source, (ii) no optical detections (ugriz from
CFHTLS), (iii) no visible detection in the optical stack (ugriz > 27), (iv) visually
checked reliable NBJ and J detections and (v) J − K ≤ 0. We compute photometric
redshifts and remove a significant amount of dusty lower redshift line-emitters
at z ∼ 1.4 or 2.2. A total of 13 Lyα candidates were found, of which two are marked
as strong candidates, but the majority have very weak constraints on their spectral
energy distributions. Using follow-up observations with SINFONI/VLT, we are able
to exclude the most robust candidates as LAEs. We put a strong constraint on the
Lyα luminosity function at z ∼ 9 and make realistic predictions for ongoing and
future surveys. Our results show that surveys for the highest redshift LAEs are
susceptible of multiple contaminations and that spectroscopic follow-up is absolutely
necessary.'
acknowledgement: We thank the anonymous referee for the comments and suggestions which
improved both the quality and clarity of this work. DS acknowledges financial support
from the Netherlands Organisation for Scientific Research (NWO) through a Veni fellowship.
IRS acknowledges support from STFC (ST/I001573/1), a Leverhulme Fellowship, the
ERC Advanced Investigator programme DUSTYGAL 321334 and a Royal Society/Wolfson
Merit Award. PNB acknowledges support from the Leverhulme Trust. JWK acknowledges
the support from the Creative Research Initiative Program, no. 2008- 0060544, of
the National Research Foundation of Korea (NRF) funded by the Korean government
(MSIP). JPUF and BMJ acknowledge support from the ERC-StG grant EGGS-278202. The
Dark Cosmology Centre is funded by the Danish National Research Foundation. This
work is based in part on data obtained as part of the UKIRT Infrared Deep Sky Survey.
Based on observations obtained with MegaPrime/MegaCam, a joint project of CFHT and
CEA/IRFU, at the Canada–France–Hawaii Telescope (CFHT) which is operated by the
National Research Council (NRC) of Canada, the Institut National des Science de
l’Univers of the Centre National de la Recherche Scientifique (CNRS) of France and
the University of Hawaii. This work is based in part on data products produced at
Terapix available at the Canadian Astronomy Data Centre as part of the Canada-France-Hawaii
Telescope Legacy Survey, a collaborative project of NRC and CNRS. This work was
only possible due to OPTICON/FP7 and the access that it granted to the CFHT telescope.
The authors also wish to acknowledge the CFHTLS and UKIDSS surveys for their excellent
legacy and complementary value – without such high-quality data sets, this research
would not have been possible.
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: Jorryt J
full_name: Matthee, Jorryt J
id: 7439a258-f3c0-11ec-9501-9df22fe06720
last_name: Matthee
orcid: 0000-0003-2871-127X
- first_name: David
full_name: Sobral, David
last_name: Sobral
- first_name: A. M.
full_name: Swinbank, A. M.
last_name: Swinbank
- first_name: Ian
full_name: Smail, Ian
last_name: Smail
- first_name: P. N.
full_name: Best, P. N.
last_name: Best
- first_name: Jae-Woo
full_name: Kim, Jae-Woo
last_name: Kim
- first_name: Marijn
full_name: Franx, Marijn
last_name: Franx
- first_name: Bo
full_name: Milvang-Jensen, Bo
last_name: Milvang-Jensen
- first_name: Johan
full_name: Fynbo, Johan
last_name: Fynbo
citation:
ama: 'Matthee JJ, Sobral D, Swinbank AM, et al. A 10 deg2 Lyman α survey at z=8.8
with spectroscopic follow-up: Strong constraints on the luminosity function and
implications for other surveys. Monthly Notices of the Royal Astronomical Society.
2014;440(3):2375-2387. doi:10.1093/mnras/stu392'
apa: 'Matthee, J. J., Sobral, D., Swinbank, A. M., Smail, I., Best, P. N., Kim,
J.-W., … Fynbo, J. (2014). A 10 deg2 Lyman α survey at z=8.8 with spectroscopic
follow-up: Strong constraints on the luminosity function and implications for
other surveys. Monthly Notices of the Royal Astronomical Society. Oxford
University Press. https://doi.org/10.1093/mnras/stu392'
chicago: 'Matthee, Jorryt J, David Sobral, A. M. Swinbank, Ian Smail, P. N. Best,
Jae-Woo Kim, Marijn Franx, Bo Milvang-Jensen, and Johan Fynbo. “A 10 Deg2 Lyman
α Survey at Z=8.8 with Spectroscopic Follow-up: Strong Constraints on the Luminosity
Function and Implications for Other Surveys.” Monthly Notices of the Royal
Astronomical Society. Oxford University Press, 2014. https://doi.org/10.1093/mnras/stu392.'
ieee: 'J. J. Matthee et al., “A 10 deg2 Lyman α survey at z=8.8 with spectroscopic
follow-up: Strong constraints on the luminosity function and implications for
other surveys,” Monthly Notices of the Royal Astronomical Society, vol.
440, no. 3. Oxford University Press, pp. 2375–2387, 2014.'
ista: 'Matthee JJ, Sobral D, Swinbank AM, Smail I, Best PN, Kim J-W, Franx M, Milvang-Jensen
B, Fynbo J. 2014. A 10 deg2 Lyman α survey at z=8.8 with spectroscopic follow-up:
Strong constraints on the luminosity function and implications for other surveys.
Monthly Notices of the Royal Astronomical Society. 440(3), 2375–2387.'
mla: 'Matthee, Jorryt J., et al. “A 10 Deg2 Lyman α Survey at Z=8.8 with Spectroscopic
Follow-up: Strong Constraints on the Luminosity Function and Implications for
Other Surveys.” Monthly Notices of the Royal Astronomical Society, vol.
440, no. 3, Oxford University Press, 2014, pp. 2375–87, doi:10.1093/mnras/stu392.'
short: J.J. Matthee, D. Sobral, A.M. Swinbank, I. Smail, P.N. Best, J.-W. Kim, M.
Franx, B. Milvang-Jensen, J. Fynbo, Monthly Notices of the Royal Astronomical
Society 440 (2014) 2375–2387.
date_created: 2022-07-14T12:33:24Z
date_published: 2014-05-21T00:00:00Z
date_updated: 2024-10-14T11:37:28Z
day: '21'
doi: 10.1093/mnras/stu392
extern: '1'
external_id:
arxiv:
- '1402.6697'
intvolume: ' 440'
issue: '3'
keyword:
- Space and Planetary Science
- Astronomy and Astrophysics
- 'galaxies: evolution'
- 'galaxies: high-redshift'
- 'cosmology: observations'
- dark ages
- reionization
- first stars
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://arxiv.org/abs/1402.6697
month: '05'
oa: 1
oa_version: Preprint
page: 2375-2387
publication: Monthly Notices of the Royal Astronomical Society
publication_identifier:
eissn:
- 1365-2966
issn:
- 0035-8711
publication_status: published
publisher: Oxford University Press
quality_controlled: '1'
scopus_import: '1'
status: public
title: 'A 10 deg2 Lyman α survey at z=8.8 with spectroscopic follow-up: Strong constraints
on the luminosity function and implications for other surveys'
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 440
year: '2014'
...