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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2015
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Online Access: | https://research-portal.st-andrews.ac.uk/en/researchoutput/the-sami-galaxy-survey(0da6d585-b4f3-4d7c-b4f4-225afe92eca1).html https://doi.org/10.1093/mnras/stu2055 https://research-repository.st-andrews.ac.uk/bitstream/10023/12586/1/Sharp_2014_SAMI_MNRAS_1551.pdf |
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ftunstandrewcris:oai:research-portal.st-andrews.ac.uk:publications/0da6d585-b4f3-4d7c-b4f4-225afe92eca1 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, Á. 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. Tonini, C. Walcher, C. J. 2015-01-11 application/pdf https://research-portal.st-andrews.ac.uk/en/researchoutput/the-sami-galaxy-survey(0da6d585-b4f3-4d7c-b4f4-225afe92eca1).html https://doi.org/10.1093/mnras/stu2055 https://research-repository.st-andrews.ac.uk/bitstream/10023/12586/1/Sharp_2014_SAMI_MNRAS_1551.pdf eng eng https://research-portal.st-andrews.ac.uk/en/researchoutput/the-sami-galaxy-survey(0da6d585-b4f3-4d7c-b4f4-225afe92eca1).html 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 , Á 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 , 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 , pp. 1551-1566 . https://doi.org/10.1093/mnras/stu2055 Instrumentation: spectrographs Methods: data analysis Techniques: imaging spectroscopy article 2015 ftunstandrewcris https://doi.org/10.1093/mnras/stu2055 2024-06-13T00:59:15Z 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 University of St Andrews: Research Portal Monthly Notices of the Royal Astronomical Society 446 2 1551 1566 |
institution |
Open Polar |
collection |
University of St Andrews: Research Portal |
op_collection_id |
ftunstandrewcris |
language |
English |
topic |
Instrumentation: spectrographs Methods: data analysis Techniques: imaging spectroscopy |
spellingShingle |
Instrumentation: spectrographs Methods: data analysis Techniques: imaging spectroscopy 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, Á. 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. 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 |
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, Á. 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. 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, Á. 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. 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://research-portal.st-andrews.ac.uk/en/researchoutput/the-sami-galaxy-survey(0da6d585-b4f3-4d7c-b4f4-225afe92eca1).html https://doi.org/10.1093/mnras/stu2055 https://research-repository.st-andrews.ac.uk/bitstream/10023/12586/1/Sharp_2014_SAMI_MNRAS_1551.pdf |
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 , Á 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 , 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 , pp. 1551-1566 . https://doi.org/10.1093/mnras/stu2055 |
op_relation |
https://research-portal.st-andrews.ac.uk/en/researchoutput/the-sami-galaxy-survey(0da6d585-b4f3-4d7c-b4f4-225afe92eca1).html |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1093/mnras/stu2055 |
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Monthly Notices of the Royal Astronomical Society |
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446 |
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1551 |
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