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SNLS3: CONSTRAINTS ON DARK ENERGY COMBINING THE SUPERNOVA LEGACY SURVEY THREE-YEAR DATA WITH OTHER PROBES

Identifieur interne : 004568 ( PascalFrancis/Curation ); précédent : 004567; suivant : 004569

SNLS3: CONSTRAINTS ON DARK ENERGY COMBINING THE SUPERNOVA LEGACY SURVEY THREE-YEAR DATA WITH OTHER PROBES

Auteurs : M. Sullivan [Royaume-Uni] ; J. Guy [France] ; A. Conley [Canada, États-Unis] ; N. Regnault [France] ; P. Astier [France] ; C. Balland [France] ; S. Basa [France] ; R. G. Carlberg [Canada] ; D. Fouchez [France] ; D. Hardin [France] ; I. M. Hook [Royaume-Uni, Italie] ; D. A. Howell [États-Unis] ; R. Pain [France] ; N. Palanque-Delabroullle [France] ; K. M. Perrett [Canada] ; C. J. Pritchet [Canada] ; J. Rich [France] ; V. Ruhlmann-Kleider [France] ; D. Balam [Canada] ; S. Baumont [France] ; R. S. Ellis [Royaume-Uni, États-Unis] ; S. Fabbro [Canada] ; H. K. Fakhouri [États-Unis] ; N. Fourmanoit [France] ; S. Gonzalez-Gaitan [Canada] ; M. L. Graham [États-Unis] ; M. J. Hudson [Canada] ; E. Hsiao [États-Unis] ; T. Kronborg [France] ; C. Lidman [Australie] ; A. M. Mourao [Portugal] ; J. D. Neill [États-Unis] ; S. Perlmutter [États-Unis] ; P. Ripoche [France, États-Unis] ; N. Suzuki [États-Unis] ; E. S. Walker [Royaume-Uni, Italie]

Source :

RBID : Pascal:11-0397555

Descripteurs français

English descriptors

Abstract

We present observational constraints on the nature of dark energy using the Supernova Legacy Survey three-year sample (SNLS3) of Guy et al. and Conley et al. We use the 472 Type Ia supernovae (SNe Ia) in this sample, accounting for recently discovered correlations between SN Ia luminosity and host galaxy properties, and include the effects of all identified systematic uncertainties directly in the cosmological fits. Combining the SNLS3 data with the full WMAP7 power spectrum, the Sloan Digital Sky Survey luminous red galaxy power spectrum, and a prior on the Hubble constant Ho from SHOES, in a flat universe we find Ωm = 0.269±0.015 and w = -1.061+0.069-0.068 (where the uncertainties include all statistical and SN Ia systematic errors)-a 6.5% measure of the dark energy equation-of-state parameter w. The statistical and systematic uncertainties are approximately equal, with the systematic uncertainties dominated by the photometric calibration of the SN Ia fluxes-without these calibration effects, systematics contribute only a ˜2% error in w. When relaxing the assumption of flatness, we find Ωm = 0.271 ± 0.015, Ωk = -0.002 ± 0.006, and w = -1.069+0.091-0.092.Parameterizing the time evolution of w as w(a) = w0+wa(1-a) gives w0 = -0.905±0.196. wa = -0.984+1.094-1.097 in a flat universe. All of our results are consistent with a flat, w = -1 universe.
pA  
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A08 01  1  ENG  @1 SNLS3: CONSTRAINTS ON DARK ENERGY COMBINING THE SUPERNOVA LEGACY SURVEY THREE-YEAR DATA WITH OTHER PROBES
A11 01  1    @1 SULLIVAN (M.)
A11 02  1    @1 GUY (J.)
A11 03  1    @1 CONLEY (A.)
A11 04  1    @1 REGNAULT (N.)
A11 05  1    @1 ASTIER (P.)
A11 06  1    @1 BALLAND (C.)
A11 07  1    @1 BASA (S.)
A11 08  1    @1 CARLBERG (R. G.)
A11 09  1    @1 FOUCHEZ (D.)
A11 10  1    @1 HARDIN (D.)
A11 11  1    @1 HOOK (I. M.)
A11 12  1    @1 HOWELL (D. A.)
A11 13  1    @1 PAIN (R.)
A11 14  1    @1 PALANQUE-DELABROULLLE (N.)
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A11 16  1    @1 PRITCHET (C. J.)
A11 17  1    @1 RICH (J.)
A11 18  1    @1 RUHLMANN-KLEIDER (V.)
A11 19  1    @1 BALAM (D.)
A11 20  1    @1 BAUMONT (S.)
A11 21  1    @1 ELLIS (R. S.)
A11 22  1    @1 FABBRO (S.)
A11 23  1    @1 FAKHOURI (H. K.)
A11 24  1    @1 FOURMANOIT (N.)
A11 25  1    @1 GONZALEZ-GAITAN (S.)
A11 26  1    @1 GRAHAM (M. L.)
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A11 29  1    @1 KRONBORG (T.)
A11 30  1    @1 LIDMAN (C.)
A11 31  1    @1 MOURAO (A. M.)
A11 32  1    @1 NEILL (J. D.)
A11 33  1    @1 PERLMUTTER (S.)
A11 34  1    @1 RIPOCHE (P.)
A11 35  1    @1 SUZUKI (N.)
A11 36  1    @1 WALKER (E. S.)
A14 01      @1 Department of Physics (Astrophysics), University of Oxford, Keble Road @2 Oxford OX 1 3RH @3 GBR @Z 1 aut. @Z 11 aut. @Z 21 aut. @Z 36 aut.
A14 02      @1 LPNHE, Université Pierre et Marie Curie Paris 6, Université Paris Diderot Paris 7, CNRS-IN2P3, 4 Place Jussieu @2 75252 Paris @3 FRA @Z 2 aut. @Z 4 aut. @Z 5 aut. @Z 6 aut. @Z 10 aut. @Z 13 aut. @Z 24 aut. @Z 29 aut. @Z 34 aut.
A14 03      @1 Department of Astronomy and Astrophysics, University of Toronto, 50 St. George Street @2 Toronto, ON M5S 3H4 @3 CAN @Z 3 aut. @Z 8 aut. @Z 15 aut. @Z 25 aut.
A14 04      @1 Center for Astrophysics and Space Astronomy, University of Colorado, 593 UCB @2 Boulder, CO 80309-0593 @3 USA @Z 3 aut.
A14 05      @1 Université Paris 11 @2 Orsay 91405 @3 FRA @Z 6 aut.
A14 06      @1 LAM, CNRS, BP8, Pôle de l'Étoile Site de Château-Gombert, 38 rue Frederic Joliot-Curie @2 13388 Marseille @3 FRA @Z 7 aut.
A14 07      @1 CPPM, Aix-Marseille Université, CNRS/IN2P3 @2 Marseille @3 FRA @Z 9 aut.
A14 08      @1 INAF-Osservatorio Astronomico di Roma, via Frascati 33 @2 00040 Monteporzio (RM @3 ITA @Z 11 aut.
A14 09      @1 Las Cumbres Observatory Global Telescope Network, 6740 Cortona Dr., Suite 102 @2 Goleta, CA 93117 @3 USA @Z 12 aut. @Z 26 aut.
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A14 12      @1 Network Information Operations, DRDC Ottawa, 3701 Carling Avenue @2 Ottawa, ON K1A 0Z4 @3 CAN @Z 15 aut.
A14 13      @1 Department of Physics and Astronomy, University of Victoria, P.O. Box 3055 STN CSC @2 Victoria, BC V8T 1M8 @3 CAN @Z 16 aut. @Z 19 aut. @Z 22 aut.
A14 14      @1 LPSC, UJF, CNRS/IN2P3. INPG, 53 rue des Martyrs @2 38026 Grenoble @3 FRA @Z 20 aut.
A14 15      @1 Department of Astrophysics, California Institute of Technology, MS 105-24 @2 Pasadena, CA 91125 @3 USA @Z 21 aut.
A14 16      @1 LBNL, 1 Cyclotron Road @2 Berkeley, CA 94720 @3 USA @Z 23 aut. @Z 28 aut. @Z 33 aut. @Z 34 aut. @Z 35 aut.
A14 17      @1 Department of Physics and Astronomy, University of Waterloo, 200 University Avenue West @2 Waterloo, ON N2L 3G1 @3 CAN @Z 27 aut.
A14 18      @1 Perimeter Institute for Theoretical Physics, 31 Caroline St. N. @2 Waterloo, ON N2L 2Y5 @3 CAN @Z 27 aut.
A14 19      @1 Australian Astronomical Observatory, P.O. Box 296 @2 Epping, NSW 1710 @3 AUS @Z 30 aut.
A14 20      @1 CENTRA-Centro Multidisciplinar de Astrofísica and Dep. Física, IST, Av. Rovisco Pais @2 1049-001 Lisboa @3 PRT @Z 31 aut.
A14 21      @1 California Institute of Technology, 1200 East California Boulevard @2 Pasadena, CA 91125 @3 USA @Z 32 aut.
A14 22      @1 Department of Physics, University of California, Berkeley, 366 LeConte Hall MC 7300 @2 Berkeley, CA 94720-7300 @3 USA @Z 33 aut.
A14 23      @1 Scuola Normale Superiore, Piazza dei Cavalieri 7 @2 56126 Pisa @3 ITA @Z 36 aut.
A20       @2 737102.1-737102.19
A21       @1 2011
A23 01      @0 ENG
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A64 01  1    @0 The Astrophysical journal
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C01 01    ENG  @0 We present observational constraints on the nature of dark energy using the Supernova Legacy Survey three-year sample (SNLS3) of Guy et al. and Conley et al. We use the 472 Type Ia supernovae (SNe Ia) in this sample, accounting for recently discovered correlations between SN Ia luminosity and host galaxy properties, and include the effects of all identified systematic uncertainties directly in the cosmological fits. Combining the SNLS3 data with the full WMAP7 power spectrum, the Sloan Digital Sky Survey luminous red galaxy power spectrum, and a prior on the Hubble constant Ho from SHOES, in a flat universe we find Ωm = 0.269±0.015 and w = -1.061+0.069-0.068 (where the uncertainties include all statistical and SN Ia systematic errors)-a 6.5% measure of the dark energy equation-of-state parameter w. The statistical and systematic uncertainties are approximately equal, with the systematic uncertainties dominated by the photometric calibration of the SN Ia fluxes-without these calibration effects, systematics contribute only a ˜2% error in w. When relaxing the assumption of flatness, we find Ωm = 0.271 ± 0.015, Ωk = -0.002 ± 0.006, and w = -1.069+0.091-0.092.Parameterizing the time evolution of w as w(a) = w0+wa(1-a) gives w0 = -0.905±0.196. wa = -0.984+1.094-1.097 in a flat universe. All of our results are consistent with a flat, w = -1 universe.
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C03 01  3  ENG  @0 Dark energy @5 26
C03 02  X  FRE  @0 Supernova type I @5 27
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C03 02  X  SPA  @0 Supernova tipo I @5 27
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C03 03  3  ENG  @0 Correlations @5 28
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N21       @1 269
N44 01      @1 OTO
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<title xml:lang="en" level="a">SNLS3: CONSTRAINTS ON DARK ENERGY COMBINING THE SUPERNOVA LEGACY SURVEY THREE-YEAR DATA WITH OTHER PROBES</title>
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<s1>Department of Physics (Astrophysics), University of Oxford, Keble Road</s1>
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<s1>Department of Physics and Astronomy, University of Victoria, P.O. Box 3055 STN CSC</s1>
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<name sortKey="Ruhlmann Kleider, V" sort="Ruhlmann Kleider, V" uniqKey="Ruhlmann Kleider V" first="V." last="Ruhlmann-Kleider">V. Ruhlmann-Kleider</name>
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<s1>Department of Physics and Astronomy, University of Victoria, P.O. Box 3055 STN CSC</s1>
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<name sortKey="Baumont, S" sort="Baumont, S" uniqKey="Baumont S" first="S." last="Baumont">S. Baumont</name>
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<s1>LPSC, UJF, CNRS/IN2P3. INPG, 53 rue des Martyrs</s1>
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<s1>Department of Astrophysics, California Institute of Technology, MS 105-24</s1>
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<name sortKey="Fabbro, S" sort="Fabbro, S" uniqKey="Fabbro S" first="S." last="Fabbro">S. Fabbro</name>
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<inist:fA14 i1="13">
<s1>Department of Physics and Astronomy, University of Victoria, P.O. Box 3055 STN CSC</s1>
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<name sortKey="Fakhouri, H K" sort="Fakhouri, H K" uniqKey="Fakhouri H" first="H. K." last="Fakhouri">H. K. Fakhouri</name>
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<name sortKey="Gonzalez Gaitan, S" sort="Gonzalez Gaitan, S" uniqKey="Gonzalez Gaitan S" first="S." last="Gonzalez-Gaitan">S. Gonzalez-Gaitan</name>
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<s1>Australian Astronomical Observatory, P.O. Box 296</s1>
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<front>
<div type="abstract" xml:lang="en">We present observational constraints on the nature of dark energy using the Supernova Legacy Survey three-year sample (SNLS3) of Guy et al. and Conley et al. We use the 472 Type Ia supernovae (SNe Ia) in this sample, accounting for recently discovered correlations between SN Ia luminosity and host galaxy properties, and include the effects of all identified systematic uncertainties directly in the cosmological fits. Combining the SNLS3 data with the full WMAP7 power spectrum, the Sloan Digital Sky Survey luminous red galaxy power spectrum, and a prior on the Hubble constant H
<sub>o</sub>
from SHOES, in a flat universe we find Ω
<sub>m</sub>
= 0.269±0.015 and w = -1.061
<sup>+0.069</sup>
<sub>-0.068</sub>
(where the uncertainties include all statistical and SN Ia systematic errors)-a 6.5% measure of the dark energy equation-of-state parameter w. The statistical and systematic uncertainties are approximately equal, with the systematic uncertainties dominated by the photometric calibration of the SN Ia fluxes-without these calibration effects, systematics contribute only a ˜2% error in w. When relaxing the assumption of flatness, we find Ω
<sub>m</sub>
= 0.271 ± 0.015, Ω
<sub>k</sub>
= -0.002 ± 0.006, and w = -1.069
<sup>+0.091</sup>
<sub>-0.092</sub>
.Parameterizing the time evolution of w as w(a) = w
<sub>0</sub>
+w
<sub>a</sub>
(1-a) gives w
<sub>0</sub>
= -0.905±0.196. w
<sub>a</sub>
= -0.984
<sup>+1.094</sup>
<sub>-1.097</sub>
in a flat universe. All of our results are consistent with a flat, w = -1 universe.</div>
</front>
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<fA08 i1="01" i2="1" l="ENG">
<s1>SNLS3: CONSTRAINTS ON DARK ENERGY COMBINING THE SUPERNOVA LEGACY SURVEY THREE-YEAR DATA WITH OTHER PROBES</s1>
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<fA14 i1="13">
<s1>Department of Physics and Astronomy, University of Victoria, P.O. Box 3055 STN CSC</s1>
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<fA14 i1="19">
<s1>Australian Astronomical Observatory, P.O. Box 296</s1>
<s2>Epping, NSW 1710</s2>
<s3>AUS</s3>
<sZ>30 aut.</sZ>
</fA14>
<fA14 i1="20">
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<fA14 i1="21">
<s1>California Institute of Technology, 1200 East California Boulevard</s1>
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<fA14 i1="22">
<s1>Department of Physics, University of California, Berkeley, 366 LeConte Hall MC 7300</s1>
<s2>Berkeley, CA 94720-7300</s2>
<s3>USA</s3>
<sZ>33 aut.</sZ>
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<fA14 i1="23">
<s1>Scuola Normale Superiore, Piazza dei Cavalieri 7</s1>
<s2>56126 Pisa</s2>
<s3>ITA</s3>
<sZ>36 aut.</sZ>
</fA14>
<fA20>
<s2>737102.1-737102.19</s2>
</fA20>
<fA21>
<s1>2011</s1>
</fA21>
<fA23 i1="01">
<s0>ENG</s0>
</fA23>
<fA43 i1="01">
<s1>INIST</s1>
<s2>512</s2>
<s5>354000500132270560</s5>
</fA43>
<fA44>
<s0>0000</s0>
<s1>© 2011 INIST-CNRS. All rights reserved.</s1>
</fA44>
<fA45>
<s0>3/4 p.</s0>
</fA45>
<fA47 i1="01" i2="1">
<s0>11-0397555</s0>
</fA47>
<fA60>
<s1>P</s1>
</fA60>
<fA61>
<s0>A</s0>
</fA61>
<fA64 i1="01" i2="1">
<s0>The Astrophysical journal</s0>
</fA64>
<fA66 i1="01">
<s0>GBR</s0>
</fA66>
<fC01 i1="01" l="ENG">
<s0>We present observational constraints on the nature of dark energy using the Supernova Legacy Survey three-year sample (SNLS3) of Guy et al. and Conley et al. We use the 472 Type Ia supernovae (SNe Ia) in this sample, accounting for recently discovered correlations between SN Ia luminosity and host galaxy properties, and include the effects of all identified systematic uncertainties directly in the cosmological fits. Combining the SNLS3 data with the full WMAP7 power spectrum, the Sloan Digital Sky Survey luminous red galaxy power spectrum, and a prior on the Hubble constant H
<sub>o</sub>
from SHOES, in a flat universe we find Ω
<sub>m</sub>
= 0.269±0.015 and w = -1.061
<sup>+0.069</sup>
<sub>-0.068</sub>
(where the uncertainties include all statistical and SN Ia systematic errors)-a 6.5% measure of the dark energy equation-of-state parameter w. The statistical and systematic uncertainties are approximately equal, with the systematic uncertainties dominated by the photometric calibration of the SN Ia fluxes-without these calibration effects, systematics contribute only a ˜2% error in w. When relaxing the assumption of flatness, we find Ω
<sub>m</sub>
= 0.271 ± 0.015, Ω
<sub>k</sub>
= -0.002 ± 0.006, and w = -1.069
<sup>+0.091</sup>
<sub>-0.092</sub>
.Parameterizing the time evolution of w as w(a) = w
<sub>0</sub>
+w
<sub>a</sub>
(1-a) gives w
<sub>0</sub>
= -0.905±0.196. w
<sub>a</sub>
= -0.984
<sup>+1.094</sup>
<sub>-1.097</sub>
in a flat universe. All of our results are consistent with a flat, w = -1 universe.</s0>
</fC01>
<fC02 i1="01" i2="3">
<s0>001E03</s0>
</fC02>
<fC03 i1="01" i2="3" l="FRE">
<s0>Energie sombre</s0>
<s5>26</s5>
</fC03>
<fC03 i1="01" i2="3" l="ENG">
<s0>Dark energy</s0>
<s5>26</s5>
</fC03>
<fC03 i1="02" i2="X" l="FRE">
<s0>Supernova type I</s0>
<s5>27</s5>
</fC03>
<fC03 i1="02" i2="X" l="ENG">
<s0>Type I supernova</s0>
<s5>27</s5>
</fC03>
<fC03 i1="02" i2="X" l="SPA">
<s0>Supernova tipo I</s0>
<s5>27</s5>
</fC03>
<fC03 i1="03" i2="3" l="FRE">
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<s5>28</s5>
</fC03>
<fC03 i1="03" i2="3" l="ENG">
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<s5>28</s5>
</fC03>
<fC03 i1="04" i2="3" l="FRE">
<s0>Luminosité</s0>
<s5>29</s5>
</fC03>
<fC03 i1="04" i2="3" l="ENG">
<s0>Luminosity</s0>
<s5>29</s5>
</fC03>
<fC03 i1="05" i2="3" l="FRE">
<s0>Galaxies</s0>
<s5>30</s5>
</fC03>
<fC03 i1="05" i2="3" l="ENG">
<s0>Galaxies</s0>
<s5>30</s5>
</fC03>
<fC03 i1="06" i2="X" l="FRE">
<s0>Incertitude</s0>
<s5>31</s5>
</fC03>
<fC03 i1="06" i2="X" l="ENG">
<s0>Uncertainty</s0>
<s5>31</s5>
</fC03>
<fC03 i1="06" i2="X" l="SPA">
<s0>Incertidumbre</s0>
<s5>31</s5>
</fC03>
<fC03 i1="07" i2="3" l="FRE">
<s0>Spectre puissance</s0>
<s5>32</s5>
</fC03>
<fC03 i1="07" i2="3" l="ENG">
<s0>Power spectra</s0>
<s5>32</s5>
</fC03>
<fC03 i1="08" i2="3" l="FRE">
<s0>Etude ciel</s0>
<s5>33</s5>
</fC03>
<fC03 i1="08" i2="3" l="ENG">
<s0>Sky surveys</s0>
<s5>33</s5>
</fC03>
<fC03 i1="09" i2="3" l="FRE">
<s0>Constante Hubble</s0>
<s5>34</s5>
</fC03>
<fC03 i1="09" i2="3" l="ENG">
<s0>Hubble constant</s0>
<s5>34</s5>
</fC03>
<fC03 i1="10" i2="X" l="FRE">
<s0>Métrique plate</s0>
<s5>35</s5>
</fC03>
<fC03 i1="10" i2="X" l="ENG">
<s0>Flat metric</s0>
<s5>35</s5>
</fC03>
<fC03 i1="10" i2="X" l="SPA">
<s0>Métrico plano</s0>
<s5>35</s5>
</fC03>
<fC03 i1="11" i2="X" l="FRE">
<s0>Equation énergie</s0>
<s5>36</s5>
</fC03>
<fC03 i1="11" i2="X" l="ENG">
<s0>Energy equation</s0>
<s5>36</s5>
</fC03>
<fC03 i1="11" i2="X" l="SPA">
<s0>Ecuación energía</s0>
<s5>36</s5>
</fC03>
<fC03 i1="12" i2="3" l="FRE">
<s0>Equation état</s0>
<s5>37</s5>
</fC03>
<fC03 i1="12" i2="3" l="ENG">
<s0>Equations of state</s0>
<s5>37</s5>
</fC03>
<fC03 i1="13" i2="3" l="FRE">
<s0>Courbe lumière</s0>
<s5>38</s5>
</fC03>
<fC03 i1="13" i2="3" l="ENG">
<s0>Light curves</s0>
<s5>38</s5>
</fC03>
<fC03 i1="14" i2="3" l="FRE">
<s0>Couleur</s0>
<s5>39</s5>
</fC03>
<fC03 i1="14" i2="3" l="ENG">
<s0>Color</s0>
<s5>39</s5>
</fC03>
<fC03 i1="15" i2="X" l="FRE">
<s0>Paramètre cosmologique</s0>
<s5>40</s5>
</fC03>
<fC03 i1="15" i2="X" l="ENG">
<s0>Cosmological parameter</s0>
<s5>40</s5>
</fC03>
<fC03 i1="15" i2="X" l="SPA">
<s0>Parámetro cosmológico</s0>
<s5>40</s5>
</fC03>
<fC03 i1="16" i2="3" l="FRE">
<s0>Cosmologie</s0>
<s5>41</s5>
</fC03>
<fC03 i1="16" i2="3" l="ENG">
<s0>Cosmology</s0>
<s5>41</s5>
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<fN21>
<s1>269</s1>
</fN21>
<fN44 i1="01">
<s1>OTO</s1>
</fN44>
<fN82>
<s1>OTO</s1>
</fN82>
</pA>
</standard>
</inist>
</record>

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