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Title: OzDES multifibre spectroscopy for the Dark Energy Survey: Three year results and first data release

Abstract

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-Å 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-Objectmore » 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.« less

Authors:
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Publication Date:
Research Org.:
Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States); Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); SLAC National Accelerator Lab., Menlo Park, CA (United States); Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE Office of Science (SC), High Energy Physics (HEP); USDOE Office of Science (SC), Advanced Scientific Computing Research (ASCR)
Contributing Org.:
DES Collaboration
OSTI Identifier:
1375905
Alternate Identifier(s):
OSTI ID: 1410194; OSTI ID: 1410556; OSTI ID: 1476564
Report Number(s):
FERMILAB-PUB-17-089-E; arXiv:1708.04526
Journal ID: ISSN 0035-8711; 1616074
Grant/Contract Number:  
AC02-07CH11359; AC05-00OR22725; AC02-76SF00515; AC02-05CH11231
Resource Type:
Accepted Manuscript
Journal Name:
Monthly Notices of the Royal Astronomical Society
Additional Journal Information:
Journal Volume: 472; Journal Issue: 1; Journal ID: ISSN 0035-8711
Publisher:
Royal Astronomical Society
Country of Publication:
United States
Language:
English
Subject:
79 ASTRONOMY AND ASTROPHYSICS; Dark energy; supernovae

Citation Formats

Childress, M. J., Lidman, C., Davis, T. M., Tucker, B. E., Asorey, J., Yuan, F., Abbott, T. M. C., Abdalla, F. B., Allam, S., Annis, J., Banerji, M., Benoit-Lévy, A., Bernard, S. .. R., Bertin, E., Brooks, D., Buckley-Geer, E., Burke, D. L., Carnero Rosell, A., Carollo, D., Carrasco Kind, M., Carretero, J., Castander, F. J., Cunha, C. E., da Costa, L. N., D’Andrea, C. B., Doel, P., Eifler, T. F., Evrard, A. E., Flaugher, B., Foley, R. J., Fosalba, P., Frieman, J., García-Bellido, J., Glazebrook, K., Goldstein, D. A., Gruen, D., Gruendl, R. A., Gschwend, J., Gupta, R. R., Gutierrez, G., Hinton, S. R., Hoormann, J. K., James, D. J., Kessler, R., Kim, A. G., King, A. L., Kovacs, E., Kuehn, K., Kuhlmann, S., Kuropatkin, N., Lagatutta, D. J., Lewis, G. F., Li, T. S., Lima, M., Lin, H., Macaulay, E., Maia, M. A. G., Marriner, J., March, M., Marshall, J. L., Martini, P., McMahon, R. G., Menanteau, F., Miquel, R., Moller, A., Morganson, E., Mould, J., Mudd, D., Muthukrishna, D., Nichol, R. C., Nord, B., Ogando, R. L. C., Ostrovski, F., Parkinson, D., Plazas, A. A., Reed, S. L., Reil, K., Romer, A. K., Rykoff, E. S., Sako, M., Sanchez, E., Scarpine, V., Schindler, R., Schubnell, M., Scolnic, D., Sevilla-Noarbe, I., Seymour, N., Sharp, R., Smith, M., Soares-Santos, M., Sobreira, F., Sommer, N. E., Spinka, H., Suchyta, E., Sullivan, M., Swanson, M. E. C., Tarle, G., Uddin, S. A., Walker, A. R., Wester, W., and Zhang, B. R. OzDES multifibre spectroscopy for the Dark Energy Survey: Three year results and first data release. United States: N. p., 2017. Web. doi:10.1093/mnras/stx1872.
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Childress, M. J., Lidman, C., Davis, T. M., Tucker, B. E., Asorey, J., Yuan, F., Abbott, T. M. C., Abdalla, F. B., Allam, S., Annis, J., Banerji, M., Benoit-Lévy, A., Bernard, S. .. R., Bertin, E., Brooks, D., Buckley-Geer, E., Burke, D. L., Carnero Rosell, A., Carollo, D., Carrasco Kind, M., Carretero, J., Castander, F. J., Cunha, C. E., da Costa, L. N., D’Andrea, C. B., Doel, P., Eifler, T. F., Evrard, A. E., Flaugher, B., Foley, R. J., Fosalba, P., Frieman, J., García-Bellido, J., Glazebrook, K., Goldstein, D. A., Gruen, D., Gruendl, R. A., Gschwend, J., Gupta, R. R., Gutierrez, G., Hinton, S. R., Hoormann, J. K., James, D. J., Kessler, R., Kim, A. G., King, A. L., Kovacs, E., Kuehn, K., Kuhlmann, S., Kuropatkin, N., Lagatutta, D. J., Lewis, G. F., Li, T. S., Lima, M., Lin, H., Macaulay, E., Maia, M. A. G., Marriner, J., March, M., Marshall, J. L., Martini, P., McMahon, R. G., Menanteau, F., Miquel, R., Moller, A., Morganson, E., Mould, J., Mudd, D., Muthukrishna, D., Nichol, R. C., Nord, B., Ogando, R. L. C., Ostrovski, F., Parkinson, D., Plazas, A. A., Reed, S. L., Reil, K., Romer, A. K., Rykoff, E. S., Sako, M., Sanchez, E., Scarpine, V., Schindler, R., Schubnell, M., Scolnic, D., Sevilla-Noarbe, I., Seymour, N., Sharp, R., Smith, M., Soares-Santos, M., Sobreira, F., Sommer, N. E., Spinka, H., Suchyta, E., Sullivan, M., Swanson, M. E. C., Tarle, G., Uddin, S. A., Walker, A. R., Wester, W., & Zhang, B. R. OzDES multifibre spectroscopy for the Dark Energy Survey: Three year results and first data release. United States. https://doi.org/10.1093/mnras/stx1872
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Childress, M. J., Lidman, C., Davis, T. M., Tucker, B. E., Asorey, J., Yuan, F., Abbott, T. M. C., Abdalla, F. B., Allam, S., Annis, J., Banerji, M., Benoit-Lévy, A., Bernard, S. .. R., Bertin, E., Brooks, D., Buckley-Geer, E., Burke, D. L., Carnero Rosell, A., Carollo, D., Carrasco Kind, M., Carretero, J., Castander, F. J., Cunha, C. E., da Costa, L. N., D’Andrea, C. B., Doel, P., Eifler, T. F., Evrard, A. E., Flaugher, B., Foley, R. J., Fosalba, P., Frieman, J., García-Bellido, J., Glazebrook, K., Goldstein, D. A., Gruen, D., Gruendl, R. A., Gschwend, J., Gupta, R. R., Gutierrez, G., Hinton, S. R., Hoormann, J. K., James, D. J., Kessler, R., Kim, A. G., King, A. L., Kovacs, E., Kuehn, K., Kuhlmann, S., Kuropatkin, N., Lagatutta, D. J., Lewis, G. F., Li, T. S., Lima, M., Lin, H., Macaulay, E., Maia, M. A. G., Marriner, J., March, M., Marshall, J. L., Martini, P., McMahon, R. G., Menanteau, F., Miquel, R., Moller, A., Morganson, E., Mould, J., Mudd, D., Muthukrishna, D., Nichol, R. C., Nord, B., Ogando, R. L. C., Ostrovski, F., Parkinson, D., Plazas, A. A., Reed, S. L., Reil, K., Romer, A. K., Rykoff, E. S., Sako, M., Sanchez, E., Scarpine, V., Schindler, R., Schubnell, M., Scolnic, D., Sevilla-Noarbe, I., Seymour, N., Sharp, R., Smith, M., Soares-Santos, M., Sobreira, F., Sommer, N. E., Spinka, H., Suchyta, E., Sullivan, M., Swanson, M. E. C., Tarle, G., Uddin, S. A., Walker, A. R., Wester, W., and Zhang, B. R. Wed . "OzDES multifibre spectroscopy for the Dark Energy Survey: Three year results and first data release". United States. https://doi.org/10.1093/mnras/stx1872. https://www.osti.gov/servlets/purl/1375905.
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@article{osti_1375905,
title = {OzDES multifibre spectroscopy for the Dark Energy Survey: Three year results and first data release},
author = {Childress, M. J. and Lidman, C. and Davis, T. M. and Tucker, B. E. and Asorey, J. and Yuan, F. and Abbott, T. M. C. and Abdalla, F. B. and Allam, S. and Annis, J. and Banerji, M. and Benoit-Lévy, A. and Bernard, S. .. R. and Bertin, E. and Brooks, D. and Buckley-Geer, E. and Burke, D. L. and Carnero Rosell, A. and Carollo, D. and Carrasco Kind, M. and Carretero, J. and Castander, F. J. and Cunha, C. E. and da Costa, L. N. and D’Andrea, C. B. and Doel, P. and Eifler, T. F. and Evrard, A. E. and Flaugher, B. and Foley, R. J. and Fosalba, P. and Frieman, J. and García-Bellido, J. and Glazebrook, K. and Goldstein, D. A. and Gruen, D. and Gruendl, R. A. and Gschwend, J. and Gupta, R. R. and Gutierrez, G. and Hinton, S. R. and Hoormann, J. K. and James, D. J. and Kessler, R. and Kim, A. G. and King, A. L. and Kovacs, E. and Kuehn, K. and Kuhlmann, S. and Kuropatkin, N. and Lagatutta, D. J. and Lewis, G. F. and Li, T. S. and Lima, M. and Lin, H. and Macaulay, E. and Maia, M. A. G. and Marriner, J. and March, M. and Marshall, J. L. and Martini, P. and McMahon, R. G. and Menanteau, F. and Miquel, R. and Moller, A. and Morganson, E. and Mould, J. and Mudd, D. and Muthukrishna, D. and Nichol, R. C. and Nord, B. and Ogando, R. L. C. and Ostrovski, F. and Parkinson, D. and Plazas, A. A. and Reed, S. L. and Reil, K. and Romer, A. K. and Rykoff, E. S. and Sako, M. and Sanchez, E. and Scarpine, V. and Schindler, R. and Schubnell, M. and Scolnic, D. and Sevilla-Noarbe, I. and Seymour, N. and Sharp, R. and Smith, M. and Soares-Santos, M. and Sobreira, F. and Sommer, N. E. and Spinka, H. and Suchyta, E. and Sullivan, M. and Swanson, M. E. C. and Tarle, G. and Uddin, S. A. and Walker, A. R. and Wester, W. and Zhang, B. R.},
abstractNote = {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-Å 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.},
doi = {10.1093/mnras/stx1872},
journal = {Monthly Notices of the Royal Astronomical Society},
number = 1,
volume = 472,
place = {United States},
year = {Wed Jul 26 00:00:00 EDT 2017},
month = {Wed Jul 26 00:00:00 EDT 2017}
}
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    Quasar Accretion Disk Sizes from Continuum Reverberation Mapping from the Dark Energy Survey
    text, January 2018

    • Mudd, D.; Martini, P.; Zu, Y.
    • Apollo - University of Cambridge Repository
    • DOI: 10.17863/cam.20889

    Rapidly evolving transients in the Dark Energy Survey
    text, January 2018

    Hierarchical modeling and statistical calibration for photometric redshifts
    text, January 2018

    CIV Black Hole Mass Measurements with the Australian Dark Energy Survey (OzDES)
    text, January 2019

    DASH: Deep Learning for the Automated Spectral Classification of Supernovae and their Hosts
    text, January 2019

    Can redshift errors bias measurements of the Hubble Constant?
    text, January 2019

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