The SAMI Galaxy Survey:cubism and covariance, putting round pegs into square holes
We present a methodology for the regularization and combination of sparse sampled and irregularly gridded observations from fibre-optic multiobject integral field spectroscopy. The approach minimizes interpolation and retains image resolution on combining subpixel dithered data. We discuss the metho...
Published in: | Monthly Notices of the Royal Astronomical Society |
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Online Access: | https://researchers.mq.edu.au/en/publications/efac9b10-b540-43e4-a7d6-426e42d9e408 https://doi.org/10.1093/mnras/stu2055 https://research-management.mq.edu.au/ws/files/62224030/Publisher%20version.pdf http://www.scopus.com/inward/record.url?scp=84919688994&partnerID=8YFLogxK |
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ftmacquarieunicr:oai:https://researchers.mq.edu.au:publications/efac9b10-b540-43e4-a7d6-426e42d9e408 2024-06-23T07:56:31+00:00 The SAMI Galaxy Survey:cubism and covariance, putting round pegs into square holes Sharp, R. Allen, J. T. Fogarty, L. M R Croom, S. M. Cortese, L. Green, A. W. Nielsen, J. Richards, S. N. Scott, N. Taylor, E. N. Barnes, L. A. Bauer, A. E. Birchall, M. Bland-Hawthorn, J. Bloom, J. V. Brough, S. Bryant, J. J. Cecil, G. N. Colless, M. Couch, W. J. Drinkwater, M. J. Driver, S. Foster, C. Goodwin, M. Gunawardhana, M. L P Ho, I. T. Hampton, E. J. Hopkins, A. M. Jones, H. Konstantopoulos, I. S. Lawrence, J. S. Leslie, S. K. Lewis, G. F. Liske, J. López-Sánchez, R. Lorente, N. P F McElroy, R. Medling, A. M. Mahajan, S. Mould, J. Parker, Q. Pracy, M. B. Obreschkow, D. Owers, M. S. Schaefer, A. L. Sweet, S. M. Thomas, A. D. Tonini, C. Walcher, C. J. 2015-01-11 application/pdf https://researchers.mq.edu.au/en/publications/efac9b10-b540-43e4-a7d6-426e42d9e408 https://doi.org/10.1093/mnras/stu2055 https://research-management.mq.edu.au/ws/files/62224030/Publisher%20version.pdf http://www.scopus.com/inward/record.url?scp=84919688994&partnerID=8YFLogxK eng eng info:eu-repo/semantics/openAccess Sharp , R , Allen , J T , Fogarty , L M R , Croom , S M , Cortese , L , Green , A W , Nielsen , J , Richards , S N , Scott , N , Taylor , E N , Barnes , L A , Bauer , A E , Birchall , M , Bland-Hawthorn , J , Bloom , J V , Brough , S , Bryant , J J , Cecil , G N , Colless , M , Couch , W J , Drinkwater , M J , Driver , S , Foster , C , Goodwin , M , Gunawardhana , M L P , Ho , I T , Hampton , E J , Hopkins , A M , Jones , H , Konstantopoulos , I S , Lawrence , J S , Leslie , S K , Lewis , G F , Liske , J , López-Sánchez , R , Lorente , N P F , McElroy , R , Medling , A M , Mahajan , S , Mould , J , Parker , Q , Pracy , M B , Obreschkow , D , Owers , M S , Schaefer , A L , Sweet , S M , Thomas , A D , Tonini , C & Walcher , C J 2015 , ' The SAMI Galaxy Survey : cubism and covariance, putting round pegs into square holes ' , Monthly Notices of the Royal Astronomical Society , vol. 446 , no. 2 , stu2055 , pp. 1551-1566 . https://doi.org/10.1093/mnras/stu2055 instrumentation: spectrographs methods: data analysis techniques: imaging spectroscopy REDSHIFT SURVEY DESIGN WIND article 2015 ftmacquarieunicr https://doi.org/10.1093/mnras/stu2055 2024-06-05T23:47:46Z We present a methodology for the regularization and combination of sparse sampled and irregularly gridded observations from fibre-optic multiobject integral field spectroscopy. The approach minimizes interpolation and retains image resolution on combining subpixel dithered data. We discuss the methodology in the context of the Sydney-AAO multiobject integral field spectrograph (SAMI) Galaxy Survey underway at the Anglo-Australian Telescope. The SAMI instrument uses 13 fibre bundles to perform high-multiplex integral field spectroscopy across a 1° diameter field of view. The SAMI Galaxy Survey is targeting ~3000 galaxies drawn from the full range of galaxy environments. We demonstrate the subcritical sampling of the seeing and incomplete fill factor for the integral field bundles results in only a 10 per cent degradation in the final image resolution recovered. We also implement a new methodology for tracking covariance between elements of the resulting data cubes which retains 90 per cent of the covariance information while incurring only a modest increase in the survey data volume. Article in Journal/Newspaper sami Macquarie University Research Portal Monthly Notices of the Royal Astronomical Society 446 2 1551 1566 |
institution |
Open Polar |
collection |
Macquarie University Research Portal |
op_collection_id |
ftmacquarieunicr |
language |
English |
topic |
instrumentation: spectrographs methods: data analysis techniques: imaging spectroscopy REDSHIFT SURVEY DESIGN WIND |
spellingShingle |
instrumentation: spectrographs methods: data analysis techniques: imaging spectroscopy REDSHIFT SURVEY DESIGN WIND Sharp, R. Allen, J. T. Fogarty, L. M R Croom, S. M. Cortese, L. Green, A. W. Nielsen, J. Richards, S. N. Scott, N. Taylor, E. N. Barnes, L. A. Bauer, A. E. Birchall, M. Bland-Hawthorn, J. Bloom, J. V. Brough, S. Bryant, J. J. Cecil, G. N. Colless, M. Couch, W. J. Drinkwater, M. J. Driver, S. Foster, C. Goodwin, M. Gunawardhana, M. L P Ho, I. T. Hampton, E. J. Hopkins, A. M. Jones, H. Konstantopoulos, I. S. Lawrence, J. S. Leslie, S. K. Lewis, G. F. Liske, J. López-Sánchez, R. Lorente, N. P F McElroy, R. Medling, A. M. Mahajan, S. Mould, J. Parker, Q. Pracy, M. B. Obreschkow, D. Owers, M. S. Schaefer, A. L. Sweet, S. M. Thomas, A. D. Tonini, C. Walcher, C. J. The SAMI Galaxy Survey:cubism and covariance, putting round pegs into square holes |
topic_facet |
instrumentation: spectrographs methods: data analysis techniques: imaging spectroscopy REDSHIFT SURVEY DESIGN WIND |
description |
We present a methodology for the regularization and combination of sparse sampled and irregularly gridded observations from fibre-optic multiobject integral field spectroscopy. The approach minimizes interpolation and retains image resolution on combining subpixel dithered data. We discuss the methodology in the context of the Sydney-AAO multiobject integral field spectrograph (SAMI) Galaxy Survey underway at the Anglo-Australian Telescope. The SAMI instrument uses 13 fibre bundles to perform high-multiplex integral field spectroscopy across a 1° diameter field of view. The SAMI Galaxy Survey is targeting ~3000 galaxies drawn from the full range of galaxy environments. We demonstrate the subcritical sampling of the seeing and incomplete fill factor for the integral field bundles results in only a 10 per cent degradation in the final image resolution recovered. We also implement a new methodology for tracking covariance between elements of the resulting data cubes which retains 90 per cent of the covariance information while incurring only a modest increase in the survey data volume. |
format |
Article in Journal/Newspaper |
author |
Sharp, R. Allen, J. T. Fogarty, L. M R Croom, S. M. Cortese, L. Green, A. W. Nielsen, J. Richards, S. N. Scott, N. Taylor, E. N. Barnes, L. A. Bauer, A. E. Birchall, M. Bland-Hawthorn, J. Bloom, J. V. Brough, S. Bryant, J. J. Cecil, G. N. Colless, M. Couch, W. J. Drinkwater, M. J. Driver, S. Foster, C. Goodwin, M. Gunawardhana, M. L P Ho, I. T. Hampton, E. J. Hopkins, A. M. Jones, H. Konstantopoulos, I. S. Lawrence, J. S. Leslie, S. K. Lewis, G. F. Liske, J. López-Sánchez, R. Lorente, N. P F McElroy, R. Medling, A. M. Mahajan, S. Mould, J. Parker, Q. Pracy, M. B. Obreschkow, D. Owers, M. S. Schaefer, A. L. Sweet, S. M. Thomas, A. D. Tonini, C. Walcher, C. J. |
author_facet |
Sharp, R. Allen, J. T. Fogarty, L. M R Croom, S. M. Cortese, L. Green, A. W. Nielsen, J. Richards, S. N. Scott, N. Taylor, E. N. Barnes, L. A. Bauer, A. E. Birchall, M. Bland-Hawthorn, J. Bloom, J. V. Brough, S. Bryant, J. J. Cecil, G. N. Colless, M. Couch, W. J. Drinkwater, M. J. Driver, S. Foster, C. Goodwin, M. Gunawardhana, M. L P Ho, I. T. Hampton, E. J. Hopkins, A. M. Jones, H. Konstantopoulos, I. S. Lawrence, J. S. Leslie, S. K. Lewis, G. F. Liske, J. López-Sánchez, R. Lorente, N. P F McElroy, R. Medling, A. M. Mahajan, S. Mould, J. Parker, Q. Pracy, M. B. Obreschkow, D. Owers, M. S. Schaefer, A. L. Sweet, S. M. Thomas, A. D. Tonini, C. Walcher, C. J. |
author_sort |
Sharp, R. |
title |
The SAMI Galaxy Survey:cubism and covariance, putting round pegs into square holes |
title_short |
The SAMI Galaxy Survey:cubism and covariance, putting round pegs into square holes |
title_full |
The SAMI Galaxy Survey:cubism and covariance, putting round pegs into square holes |
title_fullStr |
The SAMI Galaxy Survey:cubism and covariance, putting round pegs into square holes |
title_full_unstemmed |
The SAMI Galaxy Survey:cubism and covariance, putting round pegs into square holes |
title_sort |
sami galaxy survey:cubism and covariance, putting round pegs into square holes |
publishDate |
2015 |
url |
https://researchers.mq.edu.au/en/publications/efac9b10-b540-43e4-a7d6-426e42d9e408 https://doi.org/10.1093/mnras/stu2055 https://research-management.mq.edu.au/ws/files/62224030/Publisher%20version.pdf http://www.scopus.com/inward/record.url?scp=84919688994&partnerID=8YFLogxK |
genre |
sami |
genre_facet |
sami |
op_source |
Sharp , R , Allen , J T , Fogarty , L M R , Croom , S M , Cortese , L , Green , A W , Nielsen , J , Richards , S N , Scott , N , Taylor , E N , Barnes , L A , Bauer , A E , Birchall , M , Bland-Hawthorn , J , Bloom , J V , Brough , S , Bryant , J J , Cecil , G N , Colless , M , Couch , W J , Drinkwater , M J , Driver , S , Foster , C , Goodwin , M , Gunawardhana , M L P , Ho , I T , Hampton , E J , Hopkins , A M , Jones , H , Konstantopoulos , I S , Lawrence , J S , Leslie , S K , Lewis , G F , Liske , J , López-Sánchez , R , Lorente , N P F , McElroy , R , Medling , A M , Mahajan , S , Mould , J , Parker , Q , Pracy , M B , Obreschkow , D , Owers , M S , Schaefer , A L , Sweet , S M , Thomas , A D , Tonini , C & Walcher , C J 2015 , ' The SAMI Galaxy Survey : cubism and covariance, putting round pegs into square holes ' , Monthly Notices of the Royal Astronomical Society , vol. 446 , no. 2 , stu2055 , pp. 1551-1566 . https://doi.org/10.1093/mnras/stu2055 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1093/mnras/stu2055 |
container_title |
Monthly Notices of the Royal Astronomical Society |
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446 |
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2 |
container_start_page |
1551 |
op_container_end_page |
1566 |
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1802649646857715712 |