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 |
---|---|
Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
U.K., Oxford University Press
2015
|
Subjects: | |
Online Access: | https://doi.org/10.1093/mnras/stu2055 https://hdl.handle.net/1959.7/uws:68451 |
id |
ftunivwestsyd:oai:researchdirect.westernsydney.edu.au:uws_68451 |
---|---|
record_format |
openpolar |
spelling |
ftunivwestsyd:oai:researchdirect.westernsydney.edu.au:uws_68451 2023-05-15T18:10:43+02:00 The SAMI Galaxy Survey : cubism and covariance, putting round pegs into square holes Sharp, Robert Allen, James T. Fogarty, Lisa M. R. Croom, Scott M. Cortese, Luca Green, Andrew W. Nielsen, Jeppe Richards, Samuel Scott, Nicholas Taylor, Edward N. Barnes, Luke A. (R19196) Bauer, Amanda E. Birchall, Michael N. Bland-Hawthorn, Joss Bloom, Jessica V. Brough, Sarah Bryant, Julia J. Cecil, Gerald Colless, Matthew Couch, Warrick J. Drinkwater, Michael J. Driver, Simon P. Foster, Caroline Goodwin, Michael Gunawardhana, Madusha L. Ho, I-Ting Hampton, Elise J. Hopkins, Andrew M. Jones, D. Heath Konstantopoulos, Iraklis S. Lawrence, Jon S. Leslie, Sarah K. Lewis, Geraint Liske, Jochen Lopez-Sanchez, Angel R. Lorente, Nuria P. F. McElroy, Rebecca Medling, Anne M. Mahajan, Smriti Mould, Jeremy Parker, Quentin A. Pracy, Michael B. Obreschkow, Danail Owers, Matt S. Schaefer, Adam L. Sweet, Sarah M. Thomas, Adam D. Tonini, Chiara Walcher, C. J. 2015 print 16 https://doi.org/10.1093/mnras/stu2055 https://hdl.handle.net/1959.7/uws:68451 eng eng U.K., Oxford University Press Monthly Notices of the Royal Astronomical Society--1365-2966--0035-8711 Vol. 446 Issue. 2 No. pp: 1551-1566 XXXXXX - Unknown journal article 2015 ftunivwestsyd https://doi.org/10.1093/mnras/stu2055 2022-12-12T23:25:24Z 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 Western Sydney (UWS): Research Direct Monthly Notices of the Royal Astronomical Society 446 2 1551 1566 |
institution |
Open Polar |
collection |
University of Western Sydney (UWS): Research Direct |
op_collection_id |
ftunivwestsyd |
language |
English |
topic |
XXXXXX - Unknown |
spellingShingle |
XXXXXX - Unknown Sharp, Robert Allen, James T. Fogarty, Lisa M. R. Croom, Scott M. Cortese, Luca Green, Andrew W. Nielsen, Jeppe Richards, Samuel Scott, Nicholas Taylor, Edward N. Barnes, Luke A. (R19196) Bauer, Amanda E. Birchall, Michael N. Bland-Hawthorn, Joss Bloom, Jessica V. Brough, Sarah Bryant, Julia J. Cecil, Gerald Colless, Matthew Couch, Warrick J. Drinkwater, Michael J. Driver, Simon P. Foster, Caroline Goodwin, Michael Gunawardhana, Madusha L. Ho, I-Ting Hampton, Elise J. Hopkins, Andrew M. Jones, D. Heath Konstantopoulos, Iraklis S. Lawrence, Jon S. Leslie, Sarah K. Lewis, Geraint Liske, Jochen Lopez-Sanchez, Angel R. Lorente, Nuria P. F. McElroy, Rebecca Medling, Anne M. Mahajan, Smriti Mould, Jeremy Parker, Quentin A. Pracy, Michael B. Obreschkow, Danail Owers, Matt S. Schaefer, Adam L. Sweet, Sarah M. Thomas, Adam D. Tonini, Chiara Walcher, C. J. The SAMI Galaxy Survey : cubism and covariance, putting round pegs into square holes |
topic_facet |
XXXXXX - Unknown |
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, Robert Allen, James T. Fogarty, Lisa M. R. Croom, Scott M. Cortese, Luca Green, Andrew W. Nielsen, Jeppe Richards, Samuel Scott, Nicholas Taylor, Edward N. Barnes, Luke A. (R19196) Bauer, Amanda E. Birchall, Michael N. Bland-Hawthorn, Joss Bloom, Jessica V. Brough, Sarah Bryant, Julia J. Cecil, Gerald Colless, Matthew Couch, Warrick J. Drinkwater, Michael J. Driver, Simon P. Foster, Caroline Goodwin, Michael Gunawardhana, Madusha L. Ho, I-Ting Hampton, Elise J. Hopkins, Andrew M. Jones, D. Heath Konstantopoulos, Iraklis S. Lawrence, Jon S. Leslie, Sarah K. Lewis, Geraint Liske, Jochen Lopez-Sanchez, Angel R. Lorente, Nuria P. F. McElroy, Rebecca Medling, Anne M. Mahajan, Smriti Mould, Jeremy Parker, Quentin A. Pracy, Michael B. Obreschkow, Danail Owers, Matt S. Schaefer, Adam L. Sweet, Sarah M. Thomas, Adam D. Tonini, Chiara Walcher, C. J. |
author_facet |
Sharp, Robert Allen, James T. Fogarty, Lisa M. R. Croom, Scott M. Cortese, Luca Green, Andrew W. Nielsen, Jeppe Richards, Samuel Scott, Nicholas Taylor, Edward N. Barnes, Luke A. (R19196) Bauer, Amanda E. Birchall, Michael N. Bland-Hawthorn, Joss Bloom, Jessica V. Brough, Sarah Bryant, Julia J. Cecil, Gerald Colless, Matthew Couch, Warrick J. Drinkwater, Michael J. Driver, Simon P. Foster, Caroline Goodwin, Michael Gunawardhana, Madusha L. Ho, I-Ting Hampton, Elise J. Hopkins, Andrew M. Jones, D. Heath Konstantopoulos, Iraklis S. Lawrence, Jon S. Leslie, Sarah K. Lewis, Geraint Liske, Jochen Lopez-Sanchez, Angel R. Lorente, Nuria P. F. McElroy, Rebecca Medling, Anne M. Mahajan, Smriti Mould, Jeremy Parker, Quentin A. Pracy, Michael B. Obreschkow, Danail Owers, Matt S. Schaefer, Adam L. Sweet, Sarah M. Thomas, Adam D. Tonini, Chiara Walcher, C. J. |
author_sort |
Sharp, Robert |
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 |
publisher |
U.K., Oxford University Press |
publishDate |
2015 |
url |
https://doi.org/10.1093/mnras/stu2055 https://hdl.handle.net/1959.7/uws:68451 |
genre |
sami |
genre_facet |
sami |
op_relation |
Monthly Notices of the Royal Astronomical Society--1365-2966--0035-8711 Vol. 446 Issue. 2 No. pp: 1551-1566 |
op_doi |
https://doi.org/10.1093/mnras/stu2055 |
container_title |
Monthly Notices of the Royal Astronomical Society |
container_volume |
446 |
container_issue |
2 |
container_start_page |
1551 |
op_container_end_page |
1566 |
_version_ |
1766183476763033600 |