J/A+A/575/A40 [OII] luminosity function (Comparat+, 2015)
The 0.1<z<1.65 evolution of the bright end of the [OII] luminosity function.
Comparat J., Richard J., Kneib J.-P., Ilbert O., Gonzalez-Perez V.,
Tresse L., Zoubian J., Arnouts S., Bacon R., Brownstein J.R., Baugh C.,
Delubac T., Ealet A., Escoffier S., Ge J., Jullo E., Lacey C., Ross N.P.,
Schlegel D., Schneider D.P., Steele O., Tasca L., Yeche C., Lesser M.,
Jiang Z., Jing Y., Fan Z., Fan X., Ma J., Nie J., Wang J., Wu Z., Zhang T.,
Zhou X., Zhou Z., Zou H.
<Astron. Astrophys. 575, A40 (2015)>
=2015A&A...575A..40C 2015A&A...575A..40C
ADC_Keywords: Surveys ; Galaxy catalogs ; Redshifts
Keywords: catalogs - surveys - galaxies: luminosity function, mass function -
cosmology: observations - galaxies: statistics - galaxy evolution
Abstract:
We present the [OII] luminosity function measured in the redshift
range 0.1<z<1.65 with unprecedented depth and accuracy. Our
measurements are based on medium resolution flux-calibrated spectra of
emission line galaxies with the FORS2 instrument at VLT and with the
SDSS-III/BOSS spectrograph. The FORS2 spectra and the corresponding
catalog containing redshifts and line fluxes are released along with
this paper. In this work we use a novel method to combine the
aforementioned surveys with GAMA, zCOSMOS and VVDS, which have
different target selection, producing a consistent weighting scheme to
derive the [OII] luminosity function. The measured luminosity function
is in good agreement with previous independent estimates. The
comparison with two state-of-the-art semi-analytical models is good,
which is encouraging for the production of mock catalogs of [OII] flux
limited surveys. We observe the bright end evolution over 8.5Gyr: we
measure the decrease of logL* from 42.4erg/s at redshift 1.44 to
41.2 at redshift 0.165 and we find that the faint end slope flattens
when redshift decreases. This measurement confirms the feasibility of
the target selection of future baryonic acoustic oscillation surveys
aiming at observing [OII] flux limited samples.
Description:
To measure the luminosity function (LF), we collected publicly available
[OII] flux-calibrated spectroscopy from which no [OII] LF was
previously derived.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
catalog.dat 32 1453 Spectroscopic redshifts acquired using the
ESO VLT/FORS2 facility
lf.dat 176 51 Luminosity functions for seven redshift ranges
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Byte-by-byte Description of file: catalog.dat
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Bytes Format Units Label Explanations
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3- 12 F10.6 deg RAdeg Right ascension (J2000)
16- 23 F8.6 deg DEdeg Declination (J2000)
27- 32 F6.4 --- z [0/4.82] Spectrosocpic redshift
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Byte-by-byte Description of file: lf.dat
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Bytes Format Units Label Explanations
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1- 5 F5.3 --- z.min [0.1/1.34] Lower boundary of redshift range
6 A1 --- --- [-]
7- 11 F5.3 --- z.max [0.24/1.65] Upper boundary of redshift range
13- 18 F6.3 [10-7W] logLmin [40/48] Minimum log10 of the [OII] luminosity
20- 25 F6.3 [10-7W] logLmax [40/48] Maximum log10 of the [OII] luminosity
26- 46 F21.18 [10-7W] logL [40/48] Mean log10 of the [OII] luminosity
48- 71 E24.19 Mpc-3 phi Density φ of [OII] tracer (Mpc-3/dlogL)
73- 96 E24.19 Mpc-3 e_phi rms uncertainty on phi (in Mpc-3/dlogL)
98-121 E24.19 --- jkES Share of the jack-knife error,
i.e. the sample variance
123-146 E24.19 --- galES Share of the Poisson error due to the finite
number of galaxies used
148-171 E24.19 --- wES Share of the error on the completeness weight
173-176 I4 --- Ngal [1/1273] Number of galaxies used to obtain
this measurement of the density
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Acknowledgements:
Johan Comparat, johan.comparat(at)gmail.com
(End) Patricia Vannier [CDS] 05-Jan-2015