Progress Report on the 6dF Galaxy Survey

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Progress Report on the 6dF Galaxy Survey

• Heath Jones

• Observations and Sky Coverage

• Redshifts and Redshift Completeness

• Results and Planned Data Releases

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Tiling the Sample

• 172000 galaxies

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Tiling the Sample
Number Covered by Tiles
Number of Sources on Sky
Campbell, Saunders Colless, (in prep)

• 12 samples with tiling completeness 94 or better

• 9 samples with tiling completeness 96 or better

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The Observing/Reducing Cycle

• Preparation, observing, reducing follows the
  lunar cycle

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The Observing/Reducing Cycle

• Preparation, observing, reducing follows the
  lunar cycle

• Redshifting takes place in the following lunation

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The Observing/Reducing Cycle

• Preparation, observing, reducing follows the
  lunar cycle

• Redshifting takes place in the following lunation

• Survey results are updated/reported 6 weeks
  after observation

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Observing Progress

• 650 fields have been observed, (as of mid-June)
• Target is 1500.

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Observing Progress

• 650 fields have been observed, (as of mid-June)
• Target is 1500.

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Observing Progress

• 650 fields have been observed, (as of mid-June)
• Target is 1500.

• Similar observing pattern to 2dF survey

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Progress on the Sky

• 1500 field centres assigned across the southern
  sky

• Observing strategy sees sky tackled in thirds

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Progress on the Sky

• 1500 field centres assigned across the southern
  sky

• Observing strategy sees sky tackled in thirds

• 650 observed, (as of mid-June 2003)

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Progress on the Sky

• 1500 field centres assigned across the southern
  sky

• Observing strategy sees sky tackled in thirds

• 650 observed, (as of mid-June 2003)

• 415 redshifted from 2002-2003 data, (up to
  mid-May 2003)

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Redshift Progress On Individual Samples
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Success Rates (Per Field)
1. Sources through fibres
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Relationship between Completeness and S/N
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Results from the 6dF Observations

• 65500 objects observed, (as of mid-June)

• 41,000 redshifted

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Results from the 6dF Observations

• 65500 objects observed, (as of mid-June)

• 41,000 redshifted

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Results from the 6dF Observations

• 65500 objects observed, (as of mid-June)

• 41,000 redshifted

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Galaxy Redshift Completeness - K-band Survey
showing 0 to 100
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Galaxy Redshift Completeness - K-band Survey
showing 50 to 100
MEDIAN 60

• Only the K-band Survey

• Completeness calculated from the 412 redshifted
  fields, plus literature redshifts

• High areal sky coverage does not necessarily
  imply high redshift completeness

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Progress in Each Strip

• There are 1564 fields on the sky

651 (42) have been observed, 913 (58)
remain. (as of June 2003)

• Coverage by strip

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Progress in Each Strip

• There are 1564 fields on the sky

651 (42) have been observed, 913 (58)
remain. (as of June 2003)

• Coverage by strip

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Progress in Each Strip

• There are 1564 fields on the sky

651 (42) have been observed, 913 (58)
remain. (as of June 2003)

• Coverage by strip

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Data Releases
6dF Galaxy Survey Database
http//www-wfau.roe.ac.uk/6dFGS/

• Initial release of 13000 galaxies in December
  2002

• Next data release planned for the end 2003/start
  2004

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Further Information

• 6dF Galaxy Survey Home Page

http//www.mso.anu.edu.au/6dFGS/

• 6dFGS Progress Page

http//www.mso.anu.edu.au/6dFGS/Team/Progress_Page
/
http//www-wfau.roe.ac.uk/6dFGS/

• 6dFGS Online Database

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K-band Redshift Completeness and Observed Fields
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Fields Observed and Those Remaining
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K-band Completeness and Fields Observed
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K-band Completeness and Remaining Fields
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Redshift Progress On Individual Samples
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Redshift Progress On Individual Samples -
Breakdown