Photometric selection of Type la supernovae in the Supernova Legacy Survey
Identifieur interne : 004775 ( PascalFrancis/Curation ); précédent : 004774; suivant : 004776Photometric selection of Type la supernovae in the Supernova Legacy Survey
Auteurs : G. Bazin [France, Allemagne] ; V. Ruhlmann-Kleider [France] ; N. Palanque-Delabrouille [France] ; J. Rich [France] ; E. Aubourg [France] ; P. Astier [France] ; C. Balland [France] ; S. Basa [France] ; R. G. Carlberg [Canada] ; A. Conley [États-Unis] ; D. Fouchez [France] ; J. Guy [France] ; D. Hardin [France] ; I. M. Hook [Royaume-Uni, Italie] ; D. A. Howell [États-Unis] ; R. Pain [France] ; K. Perrett [Canada] ; C. J. Pritchet [Canada] ; N. Regnault [France] ; M. Sullivan [Royaume-Uni] ; N. Fourmanoit [France] ; S. Gonzalez-Gaitan [Canada] ; C. Lidman [Australie] ; S. Perlmutter [États-Unis] ; P. Ripoche [France, États-Unis] ; E. S. Walker [Royaume-Uni, Italie]Source :
- Astronomy and astrophysics : (Berlin. Print) [ 0004-6361 ] ; 2011.
Descripteurs français
- Pascal (Inist)
- Wicri :
- topic : Cosmologie.
English descriptors
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Abstract
We present a sample of 485 photometrically identified Type Ia supernova candidates mined from the first three years of data of the CFHT SuperNova Legacy Survey (SNLS). The images were submitted to a deferred processing independent of the SNLS real-time detection pipeline. Light curves of all transient events were reconstructed in the gM, rM, iM and zM filters and submitted to automated sequential cuts in order to identify possible supernovae. Pure noise and long-term variable events were rejected by light curve shape criteria. Type Ia supernova identification relied on event characteristics fitted to their light curves assuming the events to be normal SNe Ia. The light curve fitter SALT2 was used for this purpose, assigning host galaxy photometric redshifts to the tested events. The selected sample of 485 candidates is one magnitude deeper than that allowed by the SNLS spectroscopic identification. The contamination by supernovae of other types is estimated to be 4%. Testing Hubble diagram residuals with this enlarged sample allows us to measure the Malmquist bias due to spectroscopic selections directly. The result is fully consistent with the precise Monte Carlo based estimate used to correct SN Ia distance moduli in the SNLS 3-year cosmological analyses. This paper demonstrates the feasibility of a photometric selection of high redshift supernovae with known host galaxy redshifts, opening interesting prospects for cosmological analyses from future large photometric SN Ia surveys.
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Astier</name><affiliation wicri:level="1"><inist:fA14 i1="02"><s1>LPNHE, Université Pierre et Marie Curie, Université Paris Diderot, CNRS-IN2P3, 4 place Jussieu</s1><s2>75252 Paris</s2><s3>FRA</s3><sZ>6 aut.</sZ><sZ>7 aut.</sZ><sZ>12 aut.</sZ><sZ>13 aut.</sZ><sZ>16 aut.</sZ><sZ>19 aut.</sZ><sZ>21 aut.</sZ><sZ>25 aut.</sZ></inist:fA14><country>France</country></affiliation></author><author><name sortKey="Balland, C" sort="Balland, C" uniqKey="Balland C" first="C." last="Balland">C. Balland</name><affiliation wicri:level="1"><inist:fA14 i1="02"><s1>LPNHE, Université Pierre et Marie Curie, Université Paris Diderot, CNRS-IN2P3, 4 place Jussieu</s1><s2>75252 Paris</s2><s3>FRA</s3><sZ>6 aut.</sZ><sZ>7 aut.</sZ><sZ>12 aut.</sZ><sZ>13 aut.</sZ><sZ>16 aut.</sZ><sZ>19 aut.</sZ><sZ>21 aut.</sZ><sZ>25 aut.</sZ></inist:fA14><country>France</country></affiliation><affiliation wicri:level="1"><inist:fA14 i1="03"><s1>University Paris 11</s1><s2>91405 Orsay</s2><s3>FRA</s3><sZ>7 aut.</sZ></inist:fA14><country>France</country></affiliation></author><author><name sortKey="Basa, S" sort="Basa, S" uniqKey="Basa S" first="S." last="Basa">S. Basa</name><affiliation wicri:level="1"><inist:fA14 i1="04"><s1>LAM, CNRS-INSU, BP 8, Pôle de l'étoile, Site de Château-Gombert, 38 rue Frédéric Joliot-Curie</s1><s2>13388 Marseille</s2><s3>FRA</s3><sZ>8 aut.</sZ></inist:fA14><country>France</country></affiliation></author><author><name sortKey="Carlberg, R G" sort="Carlberg, R G" uniqKey="Carlberg R" first="R. G." last="Carlberg">R. G. Carlberg</name><affiliation wicri:level="1"><inist:fA14 i1="05"><s1>Deparment of Astronomy and Astrophysics, University of Toronto, 50 St. George Street</s1><s2>Toronto, ON M5S 3H8</s2><s3>CAN</s3><sZ>9 aut.</sZ><sZ>17 aut.</sZ><sZ>22 aut.</sZ></inist:fA14><country>Canada</country></affiliation></author><author><name sortKey="Conley, A" sort="Conley, A" uniqKey="Conley A" first="A." last="Conley">A. Conley</name><affiliation wicri:level="1"><inist:fA14 i1="06"><s1>Center for Astrophysics and Space Astronomy, University of Colorado</s1><s2>Boulder, CO 80309-0389</s2><s3>USA</s3><sZ>10 aut.</sZ></inist:fA14><country>États-Unis</country></affiliation></author><author><name sortKey="Fouchez, D" sort="Fouchez, D" uniqKey="Fouchez D" first="D." last="Fouchez">D. Fouchez</name><affiliation wicri:level="1"><inist:fA14 i1="07"><s1>CPPM, CNRS-Luminy, Case 907</s1><s2>13288 Marseille</s2><s3>FRA</s3><sZ>11 aut.</sZ></inist:fA14><country>France</country></affiliation></author><author><name sortKey="Guy, J" sort="Guy, J" uniqKey="Guy J" first="J." last="Guy">J. Guy</name><affiliation wicri:level="1"><inist:fA14 i1="02"><s1>LPNHE, Université Pierre et Marie Curie, Université Paris Diderot, CNRS-IN2P3, 4 place Jussieu</s1><s2>75252 Paris</s2><s3>FRA</s3><sZ>6 aut.</sZ><sZ>7 aut.</sZ><sZ>12 aut.</sZ><sZ>13 aut.</sZ><sZ>16 aut.</sZ><sZ>19 aut.</sZ><sZ>21 aut.</sZ><sZ>25 aut.</sZ></inist:fA14><country>France</country></affiliation></author><author><name sortKey="Hardin, D" sort="Hardin, D" uniqKey="Hardin D" first="D." last="Hardin">D. Hardin</name><affiliation wicri:level="1"><inist:fA14 i1="02"><s1>LPNHE, Université Pierre et Marie Curie, Université Paris Diderot, CNRS-IN2P3, 4 place Jussieu</s1><s2>75252 Paris</s2><s3>FRA</s3><sZ>6 aut.</sZ><sZ>7 aut.</sZ><sZ>12 aut.</sZ><sZ>13 aut.</sZ><sZ>16 aut.</sZ><sZ>19 aut.</sZ><sZ>21 aut.</sZ><sZ>25 aut.</sZ></inist:fA14><country>France</country></affiliation></author><author><name sortKey="Hook, I M" sort="Hook, I M" uniqKey="Hook I" first="I. M." last="Hook">I. M. Hook</name><affiliation wicri:level="1"><inist:fA14 i1="08"><s1>Department of Physics (Astrophysics), University of Oxford, Denys Wilkinson Building, Keble Road</s1><s2>Oxford OX1 3RH</s2><s3>GBR</s3><sZ>14 aut.</sZ><sZ>20 aut.</sZ><sZ>26 aut.</sZ></inist:fA14><country>Royaume-Uni</country></affiliation><affiliation wicri:level="1"><inist:fA14 i1="09"><s1>INAF - Osservatorio Astronomico di Roma, via Frascati 33</s1><s2>00040 Monteporzio (RM)</s2><s3>ITA</s3><sZ>14 aut.</sZ></inist:fA14><country>Italie</country></affiliation></author><author><name sortKey="Howell, D A" sort="Howell, D A" uniqKey="Howell D" first="D. A." last="Howell">D. A. Howell</name><affiliation wicri:level="1"><inist:fA14 i1="10"><s1>Las Cumbres Observatory Global Telescope Network, 6740 Cortona Dr., Suite 102</s1><s2>Goleta, CA 93117</s2><s3>USA</s3><sZ>15 aut.</sZ></inist:fA14><country>États-Unis</country></affiliation><affiliation wicri:level="1"><inist:fA14 i1="11"><s1>Department of Physics, University of California, Santa Barbara, Broida Hall, Mail Code 9530</s1><s2>Santa Barbara, CA 93106-9530</s2><s3>USA</s3><sZ>15 aut.</sZ></inist:fA14><country>États-Unis</country></affiliation></author><author><name sortKey="Pain, R" sort="Pain, R" uniqKey="Pain R" first="R." last="Pain">R. Pain</name><affiliation wicri:level="1"><inist:fA14 i1="02"><s1>LPNHE, Université Pierre et Marie Curie, Université Paris Diderot, CNRS-IN2P3, 4 place Jussieu</s1><s2>75252 Paris</s2><s3>FRA</s3><sZ>6 aut.</sZ><sZ>7 aut.</sZ><sZ>12 aut.</sZ><sZ>13 aut.</sZ><sZ>16 aut.</sZ><sZ>19 aut.</sZ><sZ>21 aut.</sZ><sZ>25 aut.</sZ></inist:fA14><country>France</country></affiliation></author><author><name sortKey="Perrett, K" sort="Perrett, K" uniqKey="Perrett K" first="K." last="Perrett">K. Perrett</name><affiliation wicri:level="1"><inist:fA14 i1="05"><s1>Deparment of Astronomy and Astrophysics, University of Toronto, 50 St. George Street</s1><s2>Toronto, ON M5S 3H8</s2><s3>CAN</s3><sZ>9 aut.</sZ><sZ>17 aut.</sZ><sZ>22 aut.</sZ></inist:fA14><country>Canada</country></affiliation><affiliation wicri:level="1"><inist:fA14 i1="12"><s1>Network Information Operations, DRDC-Ottawa, 3701 Carling Avenue</s1><s2>Ottawa, ON, K1A 0Z4</s2><s3>CAN</s3><sZ>17 aut.</sZ></inist:fA14><country>Canada</country></affiliation></author><author><name sortKey="Pritchet, C J" sort="Pritchet, C J" uniqKey="Pritchet C" first="C. J." last="Pritchet">C. J. Pritchet</name><affiliation wicri:level="1"><inist:fA14 i1="13"><s1>Department of Physics and Astronomy, University of Victoria, PO Box 3055</s1><s2>Victoria, BC V8W 3P6</s2><s3>CAN</s3><sZ>18 aut.</sZ></inist:fA14><country>Canada</country></affiliation></author><author><name sortKey="Regnault, N" sort="Regnault, N" uniqKey="Regnault N" first="N." last="Regnault">N. Regnault</name><affiliation wicri:level="1"><inist:fA14 i1="02"><s1>LPNHE, Université Pierre et Marie Curie, Université Paris Diderot, CNRS-IN2P3, 4 place Jussieu</s1><s2>75252 Paris</s2><s3>FRA</s3><sZ>6 aut.</sZ><sZ>7 aut.</sZ><sZ>12 aut.</sZ><sZ>13 aut.</sZ><sZ>16 aut.</sZ><sZ>19 aut.</sZ><sZ>21 aut.</sZ><sZ>25 aut.</sZ></inist:fA14><country>France</country></affiliation></author><author><name sortKey="Sullivan, M" sort="Sullivan, M" uniqKey="Sullivan M" first="M." last="Sullivan">M. Sullivan</name><affiliation wicri:level="1"><inist:fA14 i1="08"><s1>Department of Physics (Astrophysics), University of Oxford, Denys Wilkinson Building, Keble Road</s1><s2>Oxford OX1 3RH</s2><s3>GBR</s3><sZ>14 aut.</sZ><sZ>20 aut.</sZ><sZ>26 aut.</sZ></inist:fA14><country>Royaume-Uni</country></affiliation></author><author><name sortKey="Fourmanoit, N" sort="Fourmanoit, N" uniqKey="Fourmanoit N" first="N." last="Fourmanoit">N. Fourmanoit</name><affiliation wicri:level="1"><inist:fA14 i1="02"><s1>LPNHE, Université Pierre et Marie Curie, Université Paris Diderot, CNRS-IN2P3, 4 place Jussieu</s1><s2>75252 Paris</s2><s3>FRA</s3><sZ>6 aut.</sZ><sZ>7 aut.</sZ><sZ>12 aut.</sZ><sZ>13 aut.</sZ><sZ>16 aut.</sZ><sZ>19 aut.</sZ><sZ>21 aut.</sZ><sZ>25 aut.</sZ></inist:fA14><country>France</country></affiliation></author><author><name sortKey="Gonzalez Gaitan, S" sort="Gonzalez Gaitan, S" uniqKey="Gonzalez Gaitan S" first="S." last="Gonzalez-Gaitan">S. Gonzalez-Gaitan</name><affiliation wicri:level="1"><inist:fA14 i1="05"><s1>Deparment of Astronomy and Astrophysics, University of Toronto, 50 St. George Street</s1><s2>Toronto, ON M5S 3H8</s2><s3>CAN</s3><sZ>9 aut.</sZ><sZ>17 aut.</sZ><sZ>22 aut.</sZ></inist:fA14><country>Canada</country></affiliation></author><author><name sortKey="Lidman, C" sort="Lidman, C" uniqKey="Lidman C" first="C." last="Lidman">C. Lidman</name><affiliation wicri:level="1"><inist:fA14 i1="14"><s1>Australian Astronomical Observatory, PO Box 296</s1><s2>Epping, NSW 1710</s2><s3>AUS</s3><sZ>23 aut.</sZ></inist:fA14><country>Australie</country></affiliation></author><author><name sortKey="Perlmutter, S" sort="Perlmutter, S" uniqKey="Perlmutter S" first="S." last="Perlmutter">S. Perlmutter</name><affiliation wicri:level="1"><inist:fA14 i1="15"><s1>LBNL, 1 Cyclotron Rd</s1><s2>Berkeley, CA 94720</s2><s3>USA</s3><sZ>24 aut.</sZ><sZ>25 aut.</sZ></inist:fA14><country>États-Unis</country></affiliation></author><author><name sortKey="Ripoche, P" sort="Ripoche, P" uniqKey="Ripoche P" first="P." last="Ripoche">P. Ripoche</name><affiliation wicri:level="1"><inist:fA14 i1="02"><s1>LPNHE, Université Pierre et Marie Curie, Université Paris Diderot, CNRS-IN2P3, 4 place Jussieu</s1><s2>75252 Paris</s2><s3>FRA</s3><sZ>6 aut.</sZ><sZ>7 aut.</sZ><sZ>12 aut.</sZ><sZ>13 aut.</sZ><sZ>16 aut.</sZ><sZ>19 aut.</sZ><sZ>21 aut.</sZ><sZ>25 aut.</sZ></inist:fA14><country>France</country></affiliation><affiliation wicri:level="1"><inist:fA14 i1="15"><s1>LBNL, 1 Cyclotron Rd</s1><s2>Berkeley, CA 94720</s2><s3>USA</s3><sZ>24 aut.</sZ><sZ>25 aut.</sZ></inist:fA14><country>États-Unis</country></affiliation></author><author><name sortKey="Walker, E S" sort="Walker, E S" uniqKey="Walker E" first="E. S." last="Walker">E. S. Walker</name><affiliation wicri:level="1"><inist:fA14 i1="08"><s1>Department of Physics (Astrophysics), University of Oxford, Denys Wilkinson Building, Keble Road</s1><s2>Oxford OX1 3RH</s2><s3>GBR</s3><sZ>14 aut.</sZ><sZ>20 aut.</sZ><sZ>26 aut.</sZ></inist:fA14><country>Royaume-Uni</country></affiliation><affiliation wicri:level="1"><inist:fA14 i1="16"><s1>Scuola Normale Superiore, Piazza des Cavalieri 7</s1><s2>56126 Pisa</s2><s3>ITA</s3><sZ>26 aut.</sZ></inist:fA14><country>Italie</country></affiliation></author></titleStmt><publicationStmt><idno type="wicri:source">INIST</idno><idno type="inist">12-0017817</idno><date when="2011">2011</date><idno type="stanalyst">PASCAL 12-0017817 INIST</idno><idno type="RBID">Pascal:12-0017817</idno><idno type="wicri:Area/PascalFrancis/Corpus">001734</idno><idno type="wicri:Area/PascalFrancis/Curation">004775</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en" level="a">Photometric selection of Type la supernovae in the Supernova Legacy Survey</title><author><name sortKey="Bazin, G" sort="Bazin, G" uniqKey="Bazin G" first="G." last="Bazin">G. Bazin</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>CEA, Centre de Saclay, Irfu/SPP</s1><s2>91191 Gif-sur-Yvette</s2><s3>FRA</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>3 aut.</sZ><sZ>4 aut.</sZ><sZ>5 aut.</sZ></inist:fA14><country>France</country></affiliation><affiliation wicri:level="1"><inist:fA14 i1="17"><s1>Department of Physics, Ludwig-Maximilians-Universität, Scheinerstr. 1, 81679 München and Excellence Cluster Universe, Boltzmannstr. 2</s1><s2>85748 Garchhing</s2><s3>DEU</s3><sZ>1 aut.</sZ></inist:fA14><country>Allemagne</country></affiliation></author><author><name sortKey="Ruhlmann Kleider, V" sort="Ruhlmann Kleider, V" uniqKey="Ruhlmann Kleider V" first="V." last="Ruhlmann-Kleider">V. Ruhlmann-Kleider</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>CEA, Centre de Saclay, Irfu/SPP</s1><s2>91191 Gif-sur-Yvette</s2><s3>FRA</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>3 aut.</sZ><sZ>4 aut.</sZ><sZ>5 aut.</sZ></inist:fA14><country>France</country></affiliation></author><author><name sortKey="Palanque Delabrouille, N" sort="Palanque Delabrouille, N" uniqKey="Palanque Delabrouille N" first="N." last="Palanque-Delabrouille">N. Palanque-Delabrouille</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>CEA, Centre de Saclay, Irfu/SPP</s1><s2>91191 Gif-sur-Yvette</s2><s3>FRA</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>3 aut.</sZ><sZ>4 aut.</sZ><sZ>5 aut.</sZ></inist:fA14><country>France</country></affiliation></author><author><name sortKey="Rich, J" sort="Rich, J" uniqKey="Rich J" first="J." last="Rich">J. Rich</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>CEA, Centre de Saclay, Irfu/SPP</s1><s2>91191 Gif-sur-Yvette</s2><s3>FRA</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>3 aut.</sZ><sZ>4 aut.</sZ><sZ>5 aut.</sZ></inist:fA14><country>France</country></affiliation></author><author><name sortKey="Aubourg, E" sort="Aubourg, E" uniqKey="Aubourg E" first="E." last="Aubourg">E. Aubourg</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>CEA, Centre de Saclay, Irfu/SPP</s1><s2>91191 Gif-sur-Yvette</s2><s3>FRA</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>3 aut.</sZ><sZ>4 aut.</sZ><sZ>5 aut.</sZ></inist:fA14><country>France</country></affiliation></author><author><name sortKey="Astier, P" sort="Astier, P" uniqKey="Astier P" first="P." last="Astier">P. Astier</name><affiliation wicri:level="1"><inist:fA14 i1="02"><s1>LPNHE, Université Pierre et Marie Curie, Université Paris Diderot, CNRS-IN2P3, 4 place Jussieu</s1><s2>75252 Paris</s2><s3>FRA</s3><sZ>6 aut.</sZ><sZ>7 aut.</sZ><sZ>12 aut.</sZ><sZ>13 aut.</sZ><sZ>16 aut.</sZ><sZ>19 aut.</sZ><sZ>21 aut.</sZ><sZ>25 aut.</sZ></inist:fA14><country>France</country></affiliation></author><author><name sortKey="Balland, C" sort="Balland, C" uniqKey="Balland C" first="C." last="Balland">C. Balland</name><affiliation wicri:level="1"><inist:fA14 i1="02"><s1>LPNHE, Université Pierre et Marie Curie, Université Paris Diderot, CNRS-IN2P3, 4 place Jussieu</s1><s2>75252 Paris</s2><s3>FRA</s3><sZ>6 aut.</sZ><sZ>7 aut.</sZ><sZ>12 aut.</sZ><sZ>13 aut.</sZ><sZ>16 aut.</sZ><sZ>19 aut.</sZ><sZ>21 aut.</sZ><sZ>25 aut.</sZ></inist:fA14><country>France</country></affiliation><affiliation wicri:level="1"><inist:fA14 i1="03"><s1>University Paris 11</s1><s2>91405 Orsay</s2><s3>FRA</s3><sZ>7 aut.</sZ></inist:fA14><country>France</country></affiliation></author><author><name sortKey="Basa, S" sort="Basa, S" uniqKey="Basa S" first="S." last="Basa">S. Basa</name><affiliation wicri:level="1"><inist:fA14 i1="04"><s1>LAM, CNRS-INSU, BP 8, Pôle de l'étoile, Site de Château-Gombert, 38 rue Frédéric Joliot-Curie</s1><s2>13388 Marseille</s2><s3>FRA</s3><sZ>8 aut.</sZ></inist:fA14><country>France</country></affiliation></author><author><name sortKey="Carlberg, R G" sort="Carlberg, R G" uniqKey="Carlberg R" first="R. G." last="Carlberg">R. G. Carlberg</name><affiliation wicri:level="1"><inist:fA14 i1="05"><s1>Deparment of Astronomy and Astrophysics, University of Toronto, 50 St. George Street</s1><s2>Toronto, ON M5S 3H8</s2><s3>CAN</s3><sZ>9 aut.</sZ><sZ>17 aut.</sZ><sZ>22 aut.</sZ></inist:fA14><country>Canada</country></affiliation></author><author><name sortKey="Conley, A" sort="Conley, A" uniqKey="Conley A" first="A." last="Conley">A. Conley</name><affiliation wicri:level="1"><inist:fA14 i1="06"><s1>Center for Astrophysics and Space Astronomy, University of Colorado</s1><s2>Boulder, CO 80309-0389</s2><s3>USA</s3><sZ>10 aut.</sZ></inist:fA14><country>États-Unis</country></affiliation></author><author><name sortKey="Fouchez, D" sort="Fouchez, D" uniqKey="Fouchez D" first="D." last="Fouchez">D. Fouchez</name><affiliation wicri:level="1"><inist:fA14 i1="07"><s1>CPPM, CNRS-Luminy, Case 907</s1><s2>13288 Marseille</s2><s3>FRA</s3><sZ>11 aut.</sZ></inist:fA14><country>France</country></affiliation></author><author><name sortKey="Guy, J" sort="Guy, J" uniqKey="Guy J" first="J." last="Guy">J. Guy</name><affiliation wicri:level="1"><inist:fA14 i1="02"><s1>LPNHE, Université Pierre et Marie Curie, Université Paris Diderot, CNRS-IN2P3, 4 place Jussieu</s1><s2>75252 Paris</s2><s3>FRA</s3><sZ>6 aut.</sZ><sZ>7 aut.</sZ><sZ>12 aut.</sZ><sZ>13 aut.</sZ><sZ>16 aut.</sZ><sZ>19 aut.</sZ><sZ>21 aut.</sZ><sZ>25 aut.</sZ></inist:fA14><country>France</country></affiliation></author><author><name sortKey="Hardin, D" sort="Hardin, D" uniqKey="Hardin D" first="D." last="Hardin">D. Hardin</name><affiliation wicri:level="1"><inist:fA14 i1="02"><s1>LPNHE, Université Pierre et Marie Curie, Université Paris Diderot, CNRS-IN2P3, 4 place Jussieu</s1><s2>75252 Paris</s2><s3>FRA</s3><sZ>6 aut.</sZ><sZ>7 aut.</sZ><sZ>12 aut.</sZ><sZ>13 aut.</sZ><sZ>16 aut.</sZ><sZ>19 aut.</sZ><sZ>21 aut.</sZ><sZ>25 aut.</sZ></inist:fA14><country>France</country></affiliation></author><author><name sortKey="Hook, I M" sort="Hook, I M" uniqKey="Hook I" first="I. M." last="Hook">I. M. Hook</name><affiliation wicri:level="1"><inist:fA14 i1="08"><s1>Department of Physics (Astrophysics), University of Oxford, Denys Wilkinson Building, Keble Road</s1><s2>Oxford OX1 3RH</s2><s3>GBR</s3><sZ>14 aut.</sZ><sZ>20 aut.</sZ><sZ>26 aut.</sZ></inist:fA14><country>Royaume-Uni</country></affiliation><affiliation wicri:level="1"><inist:fA14 i1="09"><s1>INAF - Osservatorio Astronomico di Roma, via Frascati 33</s1><s2>00040 Monteporzio (RM)</s2><s3>ITA</s3><sZ>14 aut.</sZ></inist:fA14><country>Italie</country></affiliation></author><author><name sortKey="Howell, D A" sort="Howell, D A" uniqKey="Howell D" first="D. A." last="Howell">D. A. Howell</name><affiliation wicri:level="1"><inist:fA14 i1="10"><s1>Las Cumbres Observatory Global Telescope Network, 6740 Cortona Dr., Suite 102</s1><s2>Goleta, CA 93117</s2><s3>USA</s3><sZ>15 aut.</sZ></inist:fA14><country>États-Unis</country></affiliation><affiliation wicri:level="1"><inist:fA14 i1="11"><s1>Department of Physics, University of California, Santa Barbara, Broida Hall, Mail Code 9530</s1><s2>Santa Barbara, CA 93106-9530</s2><s3>USA</s3><sZ>15 aut.</sZ></inist:fA14><country>États-Unis</country></affiliation></author><author><name sortKey="Pain, R" sort="Pain, R" uniqKey="Pain R" first="R." last="Pain">R. Pain</name><affiliation wicri:level="1"><inist:fA14 i1="02"><s1>LPNHE, Université Pierre et Marie Curie, Université Paris Diderot, CNRS-IN2P3, 4 place Jussieu</s1><s2>75252 Paris</s2><s3>FRA</s3><sZ>6 aut.</sZ><sZ>7 aut.</sZ><sZ>12 aut.</sZ><sZ>13 aut.</sZ><sZ>16 aut.</sZ><sZ>19 aut.</sZ><sZ>21 aut.</sZ><sZ>25 aut.</sZ></inist:fA14><country>France</country></affiliation></author><author><name sortKey="Perrett, K" sort="Perrett, K" uniqKey="Perrett K" first="K." last="Perrett">K. Perrett</name><affiliation wicri:level="1"><inist:fA14 i1="05"><s1>Deparment of Astronomy and Astrophysics, University of Toronto, 50 St. George Street</s1><s2>Toronto, ON M5S 3H8</s2><s3>CAN</s3><sZ>9 aut.</sZ><sZ>17 aut.</sZ><sZ>22 aut.</sZ></inist:fA14><country>Canada</country></affiliation><affiliation wicri:level="1"><inist:fA14 i1="12"><s1>Network Information Operations, DRDC-Ottawa, 3701 Carling Avenue</s1><s2>Ottawa, ON, K1A 0Z4</s2><s3>CAN</s3><sZ>17 aut.</sZ></inist:fA14><country>Canada</country></affiliation></author><author><name sortKey="Pritchet, C J" sort="Pritchet, C J" uniqKey="Pritchet C" first="C. J." last="Pritchet">C. J. Pritchet</name><affiliation wicri:level="1"><inist:fA14 i1="13"><s1>Department of Physics and Astronomy, University of Victoria, PO Box 3055</s1><s2>Victoria, BC V8W 3P6</s2><s3>CAN</s3><sZ>18 aut.</sZ></inist:fA14><country>Canada</country></affiliation></author><author><name sortKey="Regnault, N" sort="Regnault, N" uniqKey="Regnault N" first="N." last="Regnault">N. Regnault</name><affiliation wicri:level="1"><inist:fA14 i1="02"><s1>LPNHE, Université Pierre et Marie Curie, Université Paris Diderot, CNRS-IN2P3, 4 place Jussieu</s1><s2>75252 Paris</s2><s3>FRA</s3><sZ>6 aut.</sZ><sZ>7 aut.</sZ><sZ>12 aut.</sZ><sZ>13 aut.</sZ><sZ>16 aut.</sZ><sZ>19 aut.</sZ><sZ>21 aut.</sZ><sZ>25 aut.</sZ></inist:fA14><country>France</country></affiliation></author><author><name sortKey="Sullivan, M" sort="Sullivan, M" uniqKey="Sullivan M" first="M." last="Sullivan">M. Sullivan</name><affiliation wicri:level="1"><inist:fA14 i1="08"><s1>Department of Physics (Astrophysics), University of Oxford, Denys Wilkinson Building, Keble Road</s1><s2>Oxford OX1 3RH</s2><s3>GBR</s3><sZ>14 aut.</sZ><sZ>20 aut.</sZ><sZ>26 aut.</sZ></inist:fA14><country>Royaume-Uni</country></affiliation></author><author><name sortKey="Fourmanoit, N" sort="Fourmanoit, N" uniqKey="Fourmanoit N" first="N." last="Fourmanoit">N. Fourmanoit</name><affiliation wicri:level="1"><inist:fA14 i1="02"><s1>LPNHE, Université Pierre et Marie Curie, Université Paris Diderot, CNRS-IN2P3, 4 place Jussieu</s1><s2>75252 Paris</s2><s3>FRA</s3><sZ>6 aut.</sZ><sZ>7 aut.</sZ><sZ>12 aut.</sZ><sZ>13 aut.</sZ><sZ>16 aut.</sZ><sZ>19 aut.</sZ><sZ>21 aut.</sZ><sZ>25 aut.</sZ></inist:fA14><country>France</country></affiliation></author><author><name sortKey="Gonzalez Gaitan, S" sort="Gonzalez Gaitan, S" uniqKey="Gonzalez Gaitan S" first="S." last="Gonzalez-Gaitan">S. Gonzalez-Gaitan</name><affiliation wicri:level="1"><inist:fA14 i1="05"><s1>Deparment of Astronomy and Astrophysics, University of Toronto, 50 St. George Street</s1><s2>Toronto, ON M5S 3H8</s2><s3>CAN</s3><sZ>9 aut.</sZ><sZ>17 aut.</sZ><sZ>22 aut.</sZ></inist:fA14><country>Canada</country></affiliation></author><author><name sortKey="Lidman, C" sort="Lidman, C" uniqKey="Lidman C" first="C." last="Lidman">C. Lidman</name><affiliation wicri:level="1"><inist:fA14 i1="14"><s1>Australian Astronomical Observatory, PO Box 296</s1><s2>Epping, NSW 1710</s2><s3>AUS</s3><sZ>23 aut.</sZ></inist:fA14><country>Australie</country></affiliation></author><author><name sortKey="Perlmutter, S" sort="Perlmutter, S" uniqKey="Perlmutter S" first="S." last="Perlmutter">S. Perlmutter</name><affiliation wicri:level="1"><inist:fA14 i1="15"><s1>LBNL, 1 Cyclotron Rd</s1><s2>Berkeley, CA 94720</s2><s3>USA</s3><sZ>24 aut.</sZ><sZ>25 aut.</sZ></inist:fA14><country>États-Unis</country></affiliation></author><author><name sortKey="Ripoche, P" sort="Ripoche, P" uniqKey="Ripoche P" first="P." last="Ripoche">P. Ripoche</name><affiliation wicri:level="1"><inist:fA14 i1="02"><s1>LPNHE, Université Pierre et Marie Curie, Université Paris Diderot, CNRS-IN2P3, 4 place Jussieu</s1><s2>75252 Paris</s2><s3>FRA</s3><sZ>6 aut.</sZ><sZ>7 aut.</sZ><sZ>12 aut.</sZ><sZ>13 aut.</sZ><sZ>16 aut.</sZ><sZ>19 aut.</sZ><sZ>21 aut.</sZ><sZ>25 aut.</sZ></inist:fA14><country>France</country></affiliation><affiliation wicri:level="1"><inist:fA14 i1="15"><s1>LBNL, 1 Cyclotron Rd</s1><s2>Berkeley, CA 94720</s2><s3>USA</s3><sZ>24 aut.</sZ><sZ>25 aut.</sZ></inist:fA14><country>États-Unis</country></affiliation></author><author><name sortKey="Walker, E S" sort="Walker, E S" uniqKey="Walker E" first="E. S." last="Walker">E. S. Walker</name><affiliation wicri:level="1"><inist:fA14 i1="08"><s1>Department of Physics (Astrophysics), University of Oxford, Denys Wilkinson Building, Keble Road</s1><s2>Oxford OX1 3RH</s2><s3>GBR</s3><sZ>14 aut.</sZ><sZ>20 aut.</sZ><sZ>26 aut.</sZ></inist:fA14><country>Royaume-Uni</country></affiliation><affiliation wicri:level="1"><inist:fA14 i1="16"><s1>Scuola Normale Superiore, Piazza des Cavalieri 7</s1><s2>56126 Pisa</s2><s3>ITA</s3><sZ>26 aut.</sZ></inist:fA14><country>Italie</country></affiliation></author></analytic><series><title level="j" type="main">Astronomy and astrophysics : (Berlin. Print)</title><title level="j" type="abbreviated">Astron. astrophys. : (Berl., Print)</title><idno type="ISSN">0004-6361</idno><imprint><date when="2011">2011</date></imprint></series></biblStruct></sourceDesc><seriesStmt><title level="j" type="main">Astronomy and astrophysics : (Berlin. Print)</title><title level="j" type="abbreviated">Astron. astrophys. : (Berl., Print)</title><idno type="ISSN">0004-6361</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Cosmology</term><term>Galaxies</term><term>Hubble diagram</term><term>Light curves</term><term>Red shift</term><term>Type I supernova</term></keywords><keywords scheme="Pascal" xml:lang="fr"><term>Supernova type I</term><term>Courbe lumière</term><term>Galaxies</term><term>Déplacement vers le rouge</term><term>Diagramme Hubble</term><term>Cosmologie</term></keywords><keywords scheme="Wicri" type="topic" xml:lang="fr"><term>Cosmologie</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">We present a sample of 485 photometrically identified Type Ia supernova candidates mined from the first three years of data of the CFHT SuperNova Legacy Survey (SNLS). The images were submitted to a deferred processing independent of the SNLS real-time detection pipeline. Light curves of all transient events were reconstructed in the g<sub>M</sub>, r<sub>M</sub>, i<sub>M</sub> and z<sub>M</sub> filters and submitted to automated sequential cuts in order to identify possible supernovae. Pure noise and long-term variable events were rejected by light curve shape criteria. Type Ia supernova identification relied on event characteristics fitted to their light curves assuming the events to be normal SNe Ia. The light curve fitter SALT2 was used for this purpose, assigning host galaxy photometric redshifts to the tested events. The selected sample of 485 candidates is one magnitude deeper than that allowed by the SNLS spectroscopic identification. The contamination by supernovae of other types is estimated to be 4%. Testing Hubble diagram residuals with this enlarged sample allows us to measure the Malmquist bias due to spectroscopic selections directly. The result is fully consistent with the precise Monte Carlo based estimate used to correct SN Ia distance moduli in the SNLS 3-year cosmological analyses. This paper demonstrates the feasibility of a photometric selection of high redshift supernovae with known host galaxy redshifts, opening interesting prospects for cosmological analyses from future large photometric SN Ia surveys.</div></front></TEI><inist><standard h6="B"><pA><fA01 i1="01" i2="1"><s0>0004-6361</s0></fA01><fA02 i1="01"><s0>AAEJAF</s0></fA02><fA03 i2="1"><s0>Astron. astrophys. : (Berl., Print)</s0></fA03><fA05><s2>534</s2></fA05><fA06><s3>p. 1</s3></fA06><fA08 i1="01" i2="1" l="ENG"><s1>Photometric selection of Type la supernovae in the Supernova Legacy Survey</s1></fA08><fA11 i1="01" i2="1"><s1>BAZIN (G.)</s1></fA11><fA11 i1="02" i2="1"><s1>RUHLMANN-KLEIDER (V.)</s1></fA11><fA11 i1="03" i2="1"><s1>PALANQUE-DELABROUILLE (N.)</s1></fA11><fA11 i1="04" i2="1"><s1>RICH (J.)</s1></fA11><fA11 i1="05" i2="1"><s1>AUBOURG (E.)</s1></fA11><fA11 i1="06" i2="1"><s1>ASTIER (P.)</s1></fA11><fA11 i1="07" i2="1"><s1>BALLAND (C.)</s1></fA11><fA11 i1="08" i2="1"><s1>BASA (S.)</s1></fA11><fA11 i1="09" i2="1"><s1>CARLBERG (R. G.)</s1></fA11><fA11 i1="10" i2="1"><s1>CONLEY (A.)</s1></fA11><fA11 i1="11" i2="1"><s1>FOUCHEZ (D.)</s1></fA11><fA11 i1="12" i2="1"><s1>GUY (J.)</s1></fA11><fA11 i1="13" i2="1"><s1>HARDIN (D.)</s1></fA11><fA11 i1="14" i2="1"><s1>HOOK (I. M.)</s1></fA11><fA11 i1="15" i2="1"><s1>HOWELL (D. A.)</s1></fA11><fA11 i1="16" i2="1"><s1>PAIN (R.)</s1></fA11><fA11 i1="17" i2="1"><s1>PERRETT (K.)</s1></fA11><fA11 i1="18" i2="1"><s1>PRITCHET (C. J.)</s1></fA11><fA11 i1="19" i2="1"><s1>REGNAULT (N.)</s1></fA11><fA11 i1="20" i2="1"><s1>SULLIVAN (M.)</s1></fA11><fA11 i1="21" i2="1"><s1>FOURMANOIT (N.)</s1></fA11><fA11 i1="22" i2="1"><s1>GONZALEZ-GAITAN (S.)</s1></fA11><fA11 i1="23" i2="1"><s1>LIDMAN (C.)</s1></fA11><fA11 i1="24" i2="1"><s1>PERLMUTTER (S.)</s1></fA11><fA11 i1="25" i2="1"><s1>RIPOCHE (P.)</s1></fA11><fA11 i1="26" i2="1"><s1>WALKER (E. S.)</s1></fA11><fA14 i1="01"><s1>CEA, Centre de Saclay, Irfu/SPP</s1><s2>91191 Gif-sur-Yvette</s2><s3>FRA</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>3 aut.</sZ><sZ>4 aut.</sZ><sZ>5 aut.</sZ></fA14><fA14 i1="02"><s1>LPNHE, Université Pierre et Marie Curie, Université Paris Diderot, CNRS-IN2P3, 4 place Jussieu</s1><s2>75252 Paris</s2><s3>FRA</s3><sZ>6 aut.</sZ><sZ>7 aut.</sZ><sZ>12 aut.</sZ><sZ>13 aut.</sZ><sZ>16 aut.</sZ><sZ>19 aut.</sZ><sZ>21 aut.</sZ><sZ>25 aut.</sZ></fA14><fA14 i1="03"><s1>University Paris 11</s1><s2>91405 Orsay</s2><s3>FRA</s3><sZ>7 aut.</sZ></fA14><fA14 i1="04"><s1>LAM, CNRS-INSU, BP 8, Pôle de l'étoile, Site de Château-Gombert, 38 rue Frédéric Joliot-Curie</s1><s2>13388 Marseille</s2><s3>FRA</s3><sZ>8 aut.</sZ></fA14><fA14 i1="05"><s1>Deparment of Astronomy and Astrophysics, University of Toronto, 50 St. George Street</s1><s2>Toronto, ON M5S 3H8</s2><s3>CAN</s3><sZ>9 aut.</sZ><sZ>17 aut.</sZ><sZ>22 aut.</sZ></fA14><fA14 i1="06"><s1>Center for Astrophysics and Space Astronomy, University of Colorado</s1><s2>Boulder, CO 80309-0389</s2><s3>USA</s3><sZ>10 aut.</sZ></fA14><fA14 i1="07"><s1>CPPM, CNRS-Luminy, Case 907</s1><s2>13288 Marseille</s2><s3>FRA</s3><sZ>11 aut.</sZ></fA14><fA14 i1="08"><s1>Department of Physics (Astrophysics), University of Oxford, Denys Wilkinson Building, Keble Road</s1><s2>Oxford OX1 3RH</s2><s3>GBR</s3><sZ>14 aut.</sZ><sZ>20 aut.</sZ><sZ>26 aut.</sZ></fA14><fA14 i1="09"><s1>INAF - Osservatorio Astronomico di Roma, via Frascati 33</s1><s2>00040 Monteporzio (RM)</s2><s3>ITA</s3><sZ>14 aut.</sZ></fA14><fA14 i1="10"><s1>Las Cumbres Observatory Global Telescope Network, 6740 Cortona Dr., Suite 102</s1><s2>Goleta, CA 93117</s2><s3>USA</s3><sZ>15 aut.</sZ></fA14><fA14 i1="11"><s1>Department of Physics, University of California, Santa Barbara, Broida Hall, Mail Code 9530</s1><s2>Santa Barbara, CA 93106-9530</s2><s3>USA</s3><sZ>15 aut.</sZ></fA14><fA14 i1="12"><s1>Network Information Operations, DRDC-Ottawa, 3701 Carling Avenue</s1><s2>Ottawa, ON, K1A 0Z4</s2><s3>CAN</s3><sZ>17 aut.</sZ></fA14><fA14 i1="13"><s1>Department of Physics and Astronomy, University of Victoria, PO Box 3055</s1><s2>Victoria, BC V8W 3P6</s2><s3>CAN</s3><sZ>18 aut.</sZ></fA14><fA14 i1="14"><s1>Australian Astronomical Observatory, PO Box 296</s1><s2>Epping, NSW 1710</s2><s3>AUS</s3><sZ>23 aut.</sZ></fA14><fA14 i1="15"><s1>LBNL, 1 Cyclotron Rd</s1><s2>Berkeley, CA 94720</s2><s3>USA</s3><sZ>24 aut.</sZ><sZ>25 aut.</sZ></fA14><fA14 i1="16"><s1>Scuola Normale Superiore, Piazza des Cavalieri 7</s1><s2>56126 Pisa</s2><s3>ITA</s3><sZ>26 aut.</sZ></fA14><fA14 i1="17"><s1>Department of Physics, Ludwig-Maximilians-Universität, Scheinerstr. 1, 81679 München and Excellence Cluster Universe, Boltzmannstr. 2</s1><s2>85748 Garchhing</s2><s3>DEU</s3><sZ>1 aut.</sZ></fA14><fA20><s2>A43.1-A43.21</s2></fA20><fA21><s1>2011</s1></fA21><fA23 i1="01"><s0>ENG</s0></fA23><fA43 i1="01"><s1>INIST</s1><s2>14176</s2><s5>354000505662400440</s5></fA43><fA44><s0>0000</s0><s1>© 2012 INIST-CNRS. All rights reserved.</s1></fA44><fA45><s0>1/4 p.</s0></fA45><fA47 i1="01" i2="1"><s0>12-0017817</s0></fA47><fA60><s1>P</s1></fA60><fA61><s0>A</s0></fA61><fA64 i1="01" i2="1"><s0>Astronomy and astrophysics : (Berlin. Print)</s0></fA64><fA66 i1="01"><s0>FRA</s0></fA66><fC01 i1="01" l="ENG"><s0>We present a sample of 485 photometrically identified Type Ia supernova candidates mined from the first three years of data of the CFHT SuperNova Legacy Survey (SNLS). The images were submitted to a deferred processing independent of the SNLS real-time detection pipeline. Light curves of all transient events were reconstructed in the g<sub>M</sub>, r<sub>M</sub>, i<sub>M</sub> and z<sub>M</sub> filters and submitted to automated sequential cuts in order to identify possible supernovae. Pure noise and long-term variable events were rejected by light curve shape criteria. Type Ia supernova identification relied on event characteristics fitted to their light curves assuming the events to be normal SNe Ia. The light curve fitter SALT2 was used for this purpose, assigning host galaxy photometric redshifts to the tested events. The selected sample of 485 candidates is one magnitude deeper than that allowed by the SNLS spectroscopic identification. The contamination by supernovae of other types is estimated to be 4%. Testing Hubble diagram residuals with this enlarged sample allows us to measure the Malmquist bias due to spectroscopic selections directly. The result is fully consistent with the precise Monte Carlo based estimate used to correct SN Ia distance moduli in the SNLS 3-year cosmological analyses. This paper demonstrates the feasibility of a photometric selection of high redshift supernovae with known host galaxy redshifts, opening interesting prospects for cosmological analyses from future large photometric SN Ia surveys.</s0></fC01><fC02 i1="01" i2="3"><s0>001E03</s0></fC02><fC03 i1="01" i2="X" l="FRE"><s0>Supernova type I</s0><s5>26</s5></fC03><fC03 i1="01" i2="X" l="ENG"><s0>Type I supernova</s0><s5>26</s5></fC03><fC03 i1="01" i2="X" l="SPA"><s0>Supernova tipo I</s0><s5>26</s5></fC03><fC03 i1="02" i2="3" l="FRE"><s0>Courbe lumière</s0><s5>27</s5></fC03><fC03 i1="02" i2="3" l="ENG"><s0>Light curves</s0><s5>27</s5></fC03><fC03 i1="03" i2="3" l="FRE"><s0>Galaxies</s0><s5>28</s5></fC03><fC03 i1="03" i2="3" l="ENG"><s0>Galaxies</s0><s5>28</s5></fC03><fC03 i1="04" i2="3" l="FRE"><s0>Déplacement vers le rouge</s0><s5>29</s5></fC03><fC03 i1="04" i2="3" l="ENG"><s0>Red shift</s0><s5>29</s5></fC03><fC03 i1="05" i2="X" l="FRE"><s0>Diagramme Hubble</s0><s5>30</s5></fC03><fC03 i1="05" i2="X" l="ENG"><s0>Hubble diagram</s0><s5>30</s5></fC03><fC03 i1="05" i2="X" l="SPA"><s0>Diagrama Hubble</s0><s5>30</s5></fC03><fC03 i1="06" i2="3" l="FRE"><s0>Cosmologie</s0><s5>31</s5></fC03><fC03 i1="06" i2="3" l="ENG"><s0>Cosmology</s0><s5>31</s5></fC03><fN21><s1>002</s1></fN21><fN44 i1="01"><s1>OTO</s1></fN44><fN82><s1>OTO</s1></fN82></pA></standard></inist></record>Pour manipuler ce document sous Unix (Dilib)
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|texte= Photometric selection of Type la supernovae in the Supernova Legacy Survey
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