J/A+A/504/359 Mock spectro-photometric catalog of galaxies (Jouvel+, 2009)
Designing future dark energy space mission. I. Building realistic galaxy
spectro-photometric catalogs and their first applications.
Jouvel S., Kneib J-P, Ilbert O., Bernstein G., Arnouts S., Dahlen T.,
Ealet A., Milliard B., Aussel H., Capak P., Le Brun V., McCracken H.,
Capak P., Salvato M., Scoville N.
<Astron. Astrophys. 504, 359 (2009)>
=2009A&A...504..359J 2009A&A...504..359J
ADC_Keywords: Models ; Photometry ; Spectroscopy
Keywords: cosmology: observations - surveys - catalogs -
techniques: miscellaneous
Abstract:
Future dark energy space missions such as JDEM and EUCLID are being
designed to survey the galaxy population to trace the geometry of the
universe and the growth of structure, which both depend on the
cosmological model. To reach the goal of high precision cosmology they
need to evaluate the capabilities of different instrument designs
based on realistic mock catalog. The aim of this paper is to construct
realistic and flexible mock catalogs based on our knowledge of galaxy
population from current deep surveys.
We explore two categories of mock catalog : (i) based on luminosity
functions fit of observations (GOODS, UDF, COSMOS, VVDS) using the Le
Phare software (ii) based on the observed COSMOS galaxy distribution
which benefits from all the properties of the data-rich COSMOS survey.
For these two catalogs, we have produced simulated number counts in
several bands, color diagrams and redshift distribution for validation
against real observational data. We also derive some basic
requirements to help designing future Dark Energy mission in terms of
number of galaxies available for the weak-lensing analysis as a
function of the PSF size and depth of the survey. We also compute the
spectroscopic success rate for future spectroscopic redshift surveys
(i) aiming at measuring BAO in the case of the wide field
spectroscopic redshift survey, and (ii) for the photometric redshift
calibration survey which is required to achieve weak lensing
tomography with great accuracy.
They will be publicly accessible at
http://lamwws.oamp.fr/cosmowiki/RealisticSpectroPhotCat, or by request
to the first author of this paper.
Description:
2 Mock catalogs : CMC -> COSMOS Mock Catalog from the COSMOS survey
GLFC -> GOODS Luminosity Function Catalog
For both catalogs : Id, redshift, model, E(B-V), half-light radius,
photometric bands HST : F435W, F606W, F775W, F850lp, F110W, F160W
photometric bands VVDS : B, V, R, I, Ks.
For the CMC catalog only : emission line : Ly, OII, Hb, OIIIa, OIIIb, Ha
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
glfc.dat 279 641785 GOODS Luminosity Function based catalog of
mock galaxies (magnitudes in AB system)
cmc.dat 751 537989 COSMOS Mock catalog (magnitudes in AB system)
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See also:
II/258 : Hubble Ultra Deep Field Catalog (UDF) (STScI, 2004)
II/261 : GOODS initial results (Giavalisco+, 2004)
II/286 : VIRMOS deep imaging survey. VVDS-F02 catalog (VIRMOSteam, 2008)
J/A+A/449/951 : GOODS-MUSIC sample: multicolour catalog (Grazian+, 2006)
Byte-by-byte Description of file: cmc.dat
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Bytes Format Units Label Explanations
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1- 6 I6 --- Seq [1,537990] Sequential number
8- 11 F4.2 --- z [0,6] Redshift bin
12- 13 A2 --- --- [00]
15- 16 I2 --- Mod [1,47] Model of galaxy (G1)
18- 21 F4.2 --- E(B-V) [0,0.5] Extinction
22- 23 A2 --- --- [00]
25- 35 F11.4 pix hlr [-24642.21,3721.84] Half-light radius (2)
37- 48 E12.7 mag F435W [-99.9,53] Theoretical magnitude in
F435W band
50- 61 E12.7 mag F435Wr [-99.91,38] Randomized magnitude in
F435W band
63- 74 E12.7 mag e_F435W [-99,4.04e+12] Errors on magnitude in F435W
76- 87 E12.7 mag F606W [-16,31] Theoretical magnitude in F606W band
89-100 E12.7 mag F606Wr [-16,32] Randomized magnitude in F606W band
102-113 E12.7 mag e_F606W [0.0001,0.8] Errors on magnitude in F606W
115-126 E12.7 mag F775W [-17,30] Theoretical magnitude in F775W band
128-139 E12.7 mag F775Wr [-17,30] Randomized magnitude in F775W band
141-152 E12.7 mag e_F775W [0.0001] Errors on magnitude in F775W
154-165 E12.7 mag F850lp [-17,30] Theoretical magnitude in F850lp band
167-178 E12.7 mag F850lpr [-17,30] Randomized magnitude in F850lp band
180-191 E12.7 mag e_F850lp [0.0001] Errors on magnitude in F850lp
193-204 E12.7 mag F110W [-17,30] Theoretical magnitude in F110W band
206-217 E12.7 mag F110Wr [-17,30] Randomized magnitude in F110W band
219-230 E12.7 mag e_F110W [0.0001] Errors on magnitude in F110W
232-243 E12.7 mag F160W [-18,30] Theoretical magnitude in F160W band
245-256 E12.7 mag F160Wr [-18,30] Randomized magnitude in F160W band
258-269 E12.7 mag e_F160W [0.0001] Errors on magnitude in F160W
273-284 E12.7 mag Bmag [-99.9,53] Theoretical magnitude in Bmag band
286-297 E12.7 mag Bmagr [-99.9004,39] Randomized magnitude in B band
299-310 E12.7 mag e_Bmag [-99,6.4e+12] Errors on magnitude in Bmag
312-323 E12.7 mag Vmag [-99.9,47] Theoretical magnitude in V band
325-336 E12.7 mag Vmagr [-99.9004,37] Randomized magnitude in V band
338-349 E12.7 mag e_Vmag [-99,6.02e+11] Errors on magnitude in Vmag
351-362 E12.7 mag Rmag [-17,31] Theoretical magnitude in R band
364-375 E12.7 mag Rmagr [-17,30] Randomized magnitude in R band
377-388 E12.7 mag e_Rmag [0.0001,0.7] Errors on magnitude in Rmag
390-401 E12.7 mag Imag [-17,30] Theoretical magnitude in I band
403-414 E12.7 mag Imagr [-17,31] Randomized magnitude in I band
416-427 E12.7 mag e_Imag [0.0001,0.4] Errors on magnitude in Imag
429-440 E12.7 mag Ksmag [-17,30] Theoretical magnitude in Ksmag band
442-453 E12.7 mag Ksmagr [-16.7824,29] Randomized magnitude in Ks band
455-466 E12.7 mag e_Ksmag [0.0001,0.3] Errors on magnitude in Ksmag
468-479 E12.7 0.1nm lLy [-99.9,8512] Wavelength in Ly
481-492 E12.7 mW/m2 FLy [-99.9,0.05] Theoretical flux in Ly
494-505 E12.7 mW/m2/Hz FcLy [-99.9,2.2e-15] Continuum flux in Ly
507-518 E12.7 0.1nm lOII [-99.9,26089] Wavelength in OII
520-531 E12.7 mW/m2 FOII [-99.9,0.05] Theoretical flux in OII
533-544 E12.7 mW/m2/Hz FcOII [-99.9,9.3e-15] Continuum flux in OII
546-557 E12.7 0.1nm lHb [-99.9,34027] Wavelength in Hbeta
559-570 E12.7 mW/m2 FHb [-99.9,0.04] Theoretical flux in Hb
572-583 E12.7 mW/m2/Hz FcHb [-99.9,4.03e-14] Continuum flux in Hb
585-596 E12.7 0.1nm lOIIIa [-99.9,34713] Wavelength in OIII(4959)
598-609 E12.7 mW/m2 FOIIIa [-99.9,0.008] Theoretical flux in OIII(4959)
611-622 E12.7 mW/m2/Hz FcOIIIa [-99.9,4.2e-14] Continuum flux in OIII(4959)
624-635 E12.7 0.1nm lOIIIb [-99.9,35049] Wavelength in OIII(5007)
637-648 E12.7 mW/m2 FOIIIb [-99.9,0.03] Theoretical flux in OIII(5007)
650-661 E12.7 mW/m2/Hz FcOIIIb [-99.9,4.2e-14] Continuum flux in OIII(5007)
663-674 E12.7 0.1nm lHa [-99.9,45941] Wavelength in Hα
676-687 E12.7 mW/m2 FHa [-99.9,0.13] Theoretical flux in Ha
689-700 E12.7 mW/m2/Hz FcHa [-99.9,0.8e-13] Continuum flux in Ha
705-715 E11.9 mW/m2 FHbr [-106,0.03] Randomized flux in Ly
717-727 E11.9 mW/m2 FOIIIar [-431.06,0.02] Randomized flux in OIII(4959)
729-739 E11.9 mW/m2 FOIIIbr [-332.855,0.04] Randomized flux in OIII(5007)
741-751 E11.9 mW/m2 FHar [-114.779,0.10] Randomized flux in Ha
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Note (2): 1/2-light radius in pixel, in scale 0.03arcsec/pix
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Byte-by-byte Description of file: glfc.dat
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Bytes Format Units Label Explanations
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1- 6 I6 --- Seq [1,641785] Sequential number
8- 11 F4.2 --- z [0.02,6] Redshift bin
12 A1 --- --- [0]
14- 15 I2 --- Mod [1,66] Model of galaxy (G1)
17 I1 --- LF [1,3] Luminosity Function (2)
19- 25 F7.3 mag M* M* Luminosity Function parameter (3)
27- 38 E12.7 --- phi* φ* Luminosity Function parameter (3)
40- 45 F6.3 --- alpha α Luminosity Function parameter (3)
47- 53 F7.3 mag F435W [16,105] Theoretical magnitude in F435W band
55- 60 F6.3 mag F606W [15,33] Theoretical magnitude in F606W band
62- 67 F6.3 mag F775W [14,31] Theoretical magnitude in F775W band
69- 74 F6.3 mag F850lp [14,31] Theoretical magnitude in F850lp band
76- 81 F6.3 mag F110W [14,31] Theoretical magnitude in F110W band
83- 88 F6.3 mag F160W [14,31] Theoretical magnitude in F160W band
90- 96 F7.3 mag Bmag [16,105] Theoretical magnitude in Bmag band
98-104 F7.3 mag Vmag [15,103] Theoretical magnitude in Vmag band
106-111 F6.3 mag Rmag [15,32] Theoretical magnitude in Rmag band
113-118 F6.3 mag Imag [14,31] Theoretical magnitude in Imag band
120-125 F6.3 mag Ksmag [14,31] Theoretical magnitude in Ksmag band
127-132 F6.3 mag F435Wr [16,32] Randomized magnitude in F435W band
134-139 F6.3 mag F6060Wr [15,32] Randomized magnitude in F606W band
141-146 F6.3 mag F775Wr [14,32] Randomized magnitude in F775W band
148-153 F6.3 mag F850lpr [14,31] Randomized magnitude in F850lp band
155-160 F6.3 mag F110Wr [14,31] Randomized magnitude in F110W band
162-167 F6.3 mag F160Wr [14,31] Randomized magnitude in F160W band
169-174 F6.3 mag Bmagr [16,32] Randomized magnitude in B band
176-181 F6.3 mag Vmagr [15,32] Randomized magnitude in V band
183-188 F6.3 mag Rmagr [15,32] Randomized magnitude in R band
190-195 F6.3 mag Imagr [14,32] Randomized magnitude in I band
197-202 F6.3 mag Ksmagr [14,32] Randomized magnitude in Ks band
204-209 F6.3 mag e_F435W ?=-1 Errors on magnitude in F435W band
211-216 F6.3 mag e_F606W ?=-1 Errors on magnitude in F606W band
218-223 F6.3 mag e_F775W ?=-1 Errors on magnitude in F775W band
225-230 F6.3 mag e_F850lp ?=-1 Errors on magnitude in F850lp band
232-237 F6.3 mag e_F110W ?=-1 Errors on magnitude in F110W band
239-244 F6.3 mag e_F160W ?=-1 Errors on magnitude in F160W band
246-251 F6.3 mag e_Bmag ?=-1 Errors on magnitude in B band
253-258 F6.3 mag e_Vmag ?=-1 Errors on magnitude in V band
260-265 F6.3 mag e_Rmag ?=-1 Errors on magnitude in R band
267-272 F6.3 mag e_Imag ?=-1 Errors on magnitude in I band
274-279 F6.3 mag e_Ksmag ?=-1 Errors on magnitude in Ks band
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Note (2): Luminosity Function code as follows:
1 = E(B-V)=0, type 1->17, B-V(rest frame): 1.069 --> 0.701
2 = E(B-V)=0, type 17->55, B-V(rest frame): 0.701 --> 0.2167
type 55->66, B-V(rest frame): 0.2167 --> -0.0301
3 = E(B-V)=0.1, type 56->66, B-V(rest frame): 0.3252 --> 0.1016
E(B-V)=0.2, type 56->66, B-V(rest frame): 0.4592 --> 0.2345
E(B-V)=0.3, type 56->66, B-V(rest frame): 0.5945 --> 0.3686
Note (3): To produce the mock catalog, knowing the luminosity function, Le
Phare derives a number of objects by magnitude and redshift bins (z,m)
using a Schechter function (Schechter, 1976ApJ...203..297):
n(M(z,m))dM = φ*[M(z,m)/M*]αexp[-M(z,m)/M*]dM/M*
where M is the absolute magnitude which is a function of redshift and
apparent magnitude (z,m), M*, phi* and α are the parameters of
the Schechter function.
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Global notes:
Note (G1): Model types:
1- 8 = Ell-S0
9- 15 = Sa-Sc
16- 19 = Sd-Sdm
≥20 = SB
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Acknowledgements:
Stephanie Jouvel, stephanie.jouvel(at)oamp.fr
(End) Stephanie Jouvel [LAM, France], Patricia Vannier [CDS] 17-Aug-2009