OzDES multifibre spectroscopy for the Dark Energy Survey: 3-yr results and first data release
Childress, M. J.1; Lidman, C.2,3; Davis, T. M.3,4; Tucker, B. E.3,5; Asorey, J.3,4; Yuan, F.3,5; Abbott, T. M. C.6; Abdalla, F. B.7,8; Allam, S.9; Annis, J.9; Banerji, M.10,11; Benoit-Levy, A.3,7,12,13; Bernard, S. R.3,14; Bertin, E.12,13; Brooks, D.7; Buckley-Geer, E.9; Burke, D. L.15,16; Rosell, A. Carnero17,18; Carollo, D.5,19; Kind, M. Carrasco20,21; Carretero, J.22; Castander, F. J.23; Cunha, C. E.15; da Costa, L. N.17,18; D'Andrea, C. B.24; Doel, P.7; Eifler, T. F.25,26; Evrard, A. E.27,28; Flaugher, B.9; Foley, R. J.29; Fosalba, P.23; Frieman, J.9,30; Garcia-Bellido, J.31; Glazebrook, K.32; Goldstein, D. A.33,34; Gruen, D.15,16; Gruendl, R. A.20,21; Gschwend, J.17,18; Gupta, R. R.35; Gutierrez, G.9; Hinton, S. R.3,4; Hoormann, J. K.4; James, D. J.6,36; Kessler, R.30; Kim, A. G.34; King, A. L.3,4; Kovacs, E.35; Kuehn, K.2; Kuhlmann, S.35; Kuropatkin, N.9; Lagattuta, D. J.37; Lewis, G. F.38; Li, T. S.9,39; Lima, M.17,40; Lin, H.9; Macaulay, E.41; Maia, M. A. G.17,18; Marriner, J.9; March, M.24; Marshall, J. L.39; Martini, P.42,43; McMahon, R. G.10,11; Menanteau, F.20,21; Miquel, R.22,44; Moller, A.3,5; Morganson, E.21; Mould, J.32; Mudd, D.43; Muthukrishna, D.3,4,5; Nichol, R. C.41; Nord, B.9; Ogando, R. L. C.17,18; Ostrovski, F.10,45; Parkinson, D.3,4; Plazas, A. A.26; Reed, S. L.10,11; Reil, K.16; Romer, A. K.46; Rykoff, E. S.15,16; Sako, M.24; Sanchez, E.47; Scarpine, V.9; Schindler, R.16; Schubnell, M.28; Scolnic, D.30; Sevilla-Noarbe, I.47; Seymour, N.48; Sharp, R.5; Smith, M.1; Soares-Santos, M.9; Sobreira, F.17,49; Sommer, N. E.3,5; Spinka, H.35; Suchyta, E.50; Sullivan, M.1; Swanson, M. E. C.21; Tarle, G.28; Uddin, S. A.3,51; Walker, A. R.6; Wester, W.9; Zhang, B. R.3,5

We present results for the first three years of OzDES, a six year programme to obtain redshifts for objects in the Dark Energy Survey (DES) supernova fields using the 2dF fibre positioner and AAOmega spectrograph on the Anglo-Australian Telescope. OzDES is a multi-object spectroscopic survey targeting multiple types of targets at multiple epochs over a multiyear baseline and is one of the first multi-object spectroscopic surveys to dynamically include transients into the target list soon after their discovery. At the end of three years, OzDES has spectroscopically confirmed almost 100 supernovae, and has measured redshifts for 17 000 objects, including the redshifts of 2566 supernova hosts. We examine how our ability to measure redshifts for targets of various types depends on signal-to-noise ratio (S/N), magnitude and exposure time, finding that our redshift success rate increases significantly at a S/N of 2-3 per 1-angstrom bin. We also find that the change in S/N with exposure time closely matches the Poisson limit for stacked exposures as long as 10 h. We use these results to predict the redshift yield of the full OzDES survey, as well as the potential yields of future surveys on other facilities such as (i.e. the 4-m Multi-Object Spectroscopic Telescope, the Subaru Prime Focus Spectrograph and the Maunakea Spectroscopic Explorer). This work marks the first OzDES data release, comprising 14 693 redshifts. OzDES is on target to obtain over 30 000 redshifts over the 6-yr duration of the survey, including a yield of approximately 5700 supernova host-galaxy redshifts.

Keywordsupernovae: general dark energy
Indexed BySCI
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000413765800023
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Document Type期刊论文
Corresponding AuthorChildress, M. J.
Affiliation1.Univ Southampton, Sch Phys & Astron, Southampton SO17 1BJ, Hants, England
2.Australian Astron Observ, 105 Delhi Rd, N Ryde, NSW 2113, Australia
3.Australian Natl Univ, ARC Ctr Excellence All Sky Astrophys CAASTRO, Canberra, ACT 2611, Australia
4.Univ Queensland, Sch Math & Phys, Brisbane, Qld 4072, Australia
5.Australian Natl Univ, Res Sch Astron & Astrophys, Canberra, ACT 2601, Australia
6.Natl Opt Astron Observ, Cerro Tololo Interamer Observ, Casilla 603, La Serena, Chile
7.UCL, Dept Phys & Astron, Gower St, London WC1E 6BT, England
8.Rhodes Univ, Dept Phys & Elect, POB 94, ZA-6140 Grahamstown, South Africa
9.Fermilab Natl Accelerator Lab, POB 500, Batavia, IL 60510 USA
10.Univ Cambridge, Inst Astron, Madingley Rd, Cambridge CB3 0HA, England
11.Univ Cambridge, Kavli Inst Cosmol, Madingley Rd, Cambridge CB3 0HA, England
12.Inst Astrophys Paris, CNRS, UMR 7095, F-75014 Paris, France
13.UPMC Univ Paris 06, Sorbonne Univ, UMR 7095, Inst Astrophys Paris, F-75014 Paris, France
14.Univ Melbourne, Sch Phys, Parkville, Vic 3010, Australia
15.Stanford Univ, Kavli Inst Particle Astrophys & Cosmol, POB 2450, Stanford, CA 94305 USA
16.SLAC Natl Accelerator Lab, Menlo Pk, CA 94025 USA
17.Lab Interinst E Astron LIneA, Rua Gal Jose Cristino 77, BR-20921400 Rio De Janeiro, RJ, Brazil
18.Observ Nacl, Rua Gal Jose Cristino 77, BR-20921400 Rio De Janeiro, RJ, Brazil
19.INAF, Osservatorio Astron Torino, I-10025 Turin, Italy
20.Univ Illinois, Dept Astron, 1002 W Green St, Urbana, IL 61801 USA
21.Natl Ctr Supercomp Applicat, 1205 West Clark St, Urbana, IL 61801 USA
22.Barcelona Inst Sci & Technol, IFAE, Campus UAB, E-08193 Barcelona, Spain
23.CSIC, IEEC, Inst Ciencies Espai, Campus UAB,Carrer Can Magrans S-N, E-08193 Barcelona, Spain
24.Univ Penn, Dept Phys & Astron, Philadelphia, PA 19104 USA
25.CALTECH, Dept Phys, Pasadena, CA 91125 USA
26.CALTECH, Jet Prop Lab, 4800 Oak Grove Dr, Pasadena, CA 91109 USA
27.Univ Michigan, Dept Astron, Ann Arbor, MI 48109 USA
28.Univ Michigan, Dept Phys, Ann Arbor, MI 48109 USA
29.Univ Calif Santa Cruz, Dept Astron & Astrophys, Santa Cruz, CA 95064 USA
30.Univ Chicago, Kavli Inst Cosmol Phys, Chicago, IL USA
31.Univ Autonoma Madrid, CSIC, Inst Fis Teor, E-28049 Madrid, Spain
32.Swinburne Univ Technol, Ctr Astrophys & Supercomp, Hawthorn, Vic 3122, Australia
33.Univ Calif Berkeley, Dept Astron, 501 Campbell Hall, Berkeley, CA 94720 USA
34.Lawrence Berkeley Natl Lab, 1 Cyclotron Rd, Berkeley, CA 94720 USA
35.Argonne Natl Lab, 9700 South Cass Ave, Lemont, IL 60439 USA
36.Univ Washington, Astron Dept, Box 351580, Seattle, WA 98195 USA
37.Univ Lyon 1, Univ Lyon, Ens Lyon, CNRS,Ctr Rech Astrophys Lyon,UMR5574, F-69230 St Genis Laval, France
38.Univ Sydney, Sch Phys, Sydney Inst Astron, A28, Sydney, NSW 2006, Australia
39.Texas A&M Univ, Dept Phys & Astron, George P & Cynthia Woods Mitchell Inst Fundamenta, College Stn, TX 77843 USA
40.Univ Sao Paulo, Inst Fis, Dept Fis Matemat, CP 66318, BR-05314970 Sao Paulo, SP, Brazil
41.Univ Portsmouth, Inst Cosmol & Gravitat, Portsmouth PO1 3FX, Hants, England
42.Ohio State Univ, Ctr Cosmol & Astroparticle Phys, Columbus, OH 43210 USA
43.Ohio State Univ, Dept Astron, 174 W 18Th Ave, Columbus, OH 43210 USA
44.Inst Catalana Recerca & Estudis Avancats, E-08010 Barcelona, Spain
45.Univ Fed Rio Grande do Sul, Inst Fis, Dept Astron, BR-91501970 Porto Alegre, RS, Brazil
46.Univ Sussex, Dept Phys & Astron, Pevensey Bldg, Brighton BN1 9QH, E Sussex, England
47.CIEMAT, E-28040 Madrid, Spain
48.Curtin Univ, Int Ctr Radio Astron Res, Perth, WA 6102, Australia
49.Univ Estadual Campinas, Inst Fis Gleb Wataghin, BR-13083859 Campinas, SP, Brazil
50.Oak Ridge Natl Lab, Comp Sci & Math Div, Oak Ridge, TN 37831 USA
51.Chinese Acad Sci, Purple Mt Observ, Tianwentai Rd, Nanjing 210042, Jiangsu, Peoples R China
Recommended Citation
GB/T 7714
Childress, M. J.,Lidman, C.,Davis, T. M.,et al. OzDES multifibre spectroscopy for the Dark Energy Survey: 3-yr results and first data release[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2017,472(1):273-288.
APA Childress, M. J..,Lidman, C..,Davis, T. M..,Tucker, B. E..,Asorey, J..,...&Zhang, B. R..(2017).OzDES multifibre spectroscopy for the Dark Energy Survey: 3-yr results and first data release.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,472(1),273-288.
MLA Childress, M. J.,et al."OzDES multifibre spectroscopy for the Dark Energy Survey: 3-yr results and first data release".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 472.1(2017):273-288.
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