File Download

There are no files associated with this item.

  Links for fulltext
     (May Require Subscription)
  • Find via Find It@HKUL
Supplementary

Article: The SAMI Galaxy Survey: cubism and covariance, putting round pegs into square holes

TitleThe SAMI Galaxy Survey: cubism and covariance, putting round pegs into square holes
Authors
Keywordsinstrumentation: spectrographs
methods: data analysis
techniques: imaging spectroscopy
Issue Date2015
PublisherOxford University press. The Journal's web site is located at http://www.oxfordjournals.org/our_journals/mnras/
Citation
Monthly Notices of the Royal Astronomical Society, 2015, v. 446, p. 1551-1566 How to Cite?
AbstractWe 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.
Persistent Identifierhttp://hdl.handle.net/10722/211196
ISSN
2015 Impact Factor: 4.952
2015 SCImago Journal Rankings: 2.806

 

DC FieldValueLanguage
dc.contributor.authorSharp, R-
dc.contributor.authorAllen, JT-
dc.contributor.authorFogarty, LMR-
dc.contributor.authorCroom, SM-
dc.contributor.authorCortese, L-
dc.contributor.authorGreen, AW-
dc.contributor.authorNielsen, J-
dc.contributor.authorRichards, SN-
dc.contributor.authorScott, N-
dc.contributor.authorTaylor, EN-
dc.contributor.authorBarnes, LA-
dc.contributor.authorBauer, AE-
dc.contributor.authorBirchall, M-
dc.contributor.authorBland-Hawthorn, J-
dc.contributor.authorBloom, JV-
dc.contributor.authorBrough, S-
dc.contributor.authorBryant, JJ-
dc.contributor.authorCecil, GN-
dc.contributor.authorColless, M-
dc.contributor.authorCouch, WJ-
dc.contributor.authorDrinkwater, MJ-
dc.contributor.authorDriver, S-
dc.contributor.authorFoster, C-
dc.contributor.authorGoodwin, M-
dc.contributor.authorGunawardhana, MLP-
dc.contributor.authorHo, IT-
dc.contributor.authorHampton, EJ-
dc.contributor.authorHopkins, AM-
dc.contributor.authorJones, H-
dc.contributor.authorKonstantopoulos, IS-
dc.contributor.authorLawrence, JS-
dc.contributor.authorLeslie, SK-
dc.contributor.authorLewis, GF-
dc.contributor.authorLiske, J-
dc.contributor.authorLópez-Sánchez, ÁR-
dc.contributor.authorLorente, NPF-
dc.contributor.authorMcElroy, R-
dc.contributor.authorMedling, AM-
dc.contributor.authorMahajan, S-
dc.contributor.authorMould, J-
dc.contributor.authorParker, QA-
dc.contributor.authorPracy, MB-
dc.contributor.authorObreschkow, D-
dc.contributor.authorOwers, MS-
dc.contributor.authorSchaefer, AL-
dc.contributor.authorSweet, SM-
dc.contributor.authorThomas, AD-
dc.contributor.authorTonini, C-
dc.contributor.authorWalcher, CJ-
dc.date.accessioned2015-07-08T03:22:54Z-
dc.date.available2015-07-08T03:22:54Z-
dc.date.issued2015-
dc.identifier.citationMonthly Notices of the Royal Astronomical Society, 2015, v. 446, p. 1551-1566-
dc.identifier.issn0035-8711-
dc.identifier.urihttp://hdl.handle.net/10722/211196-
dc.description.abstractWe 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.-
dc.languageeng-
dc.publisherOxford University press. The Journal's web site is located at http://www.oxfordjournals.org/our_journals/mnras/-
dc.relation.ispartofMonthly Notices of the Royal Astronomical Society-
dc.subjectinstrumentation: spectrographs-
dc.subjectmethods: data analysis-
dc.subjecttechniques: imaging spectroscopy-
dc.titleThe SAMI Galaxy Survey: cubism and covariance, putting round pegs into square holes-
dc.typeArticle-
dc.identifier.emailParker, QA: quentinp@hku.hk-
dc.identifier.authorityParker, QA=rp02017-
dc.identifier.volume446-
dc.identifier.spage1551-
dc.identifier.epage1566-

Export via OAI-PMH Interface in XML Formats


OR


Export to Other Non-XML Formats