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6dF Visualizations Supergalactic Cartesian Coordinates SGX Moving Slice 1000 km/s thick SGX from 5000 to -10000 in steps of 500 km/s (This version with.

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Presentation on theme: "6dF Visualizations Supergalactic Cartesian Coordinates SGX Moving Slice 1000 km/s thick SGX from 5000 to -10000 in steps of 500 km/s (This version with."— Presentation transcript:

1 6dF Visualizations Supergalactic Cartesian Coordinates SGX Moving Slice 1000 km/s thick SGX from 5000 to in steps of 500 km/s (This version with labelled features) NEARBY STRUCTURES Tony Fairall / University of Cape Town / Nov 06

2 ‘Labyrinth’ software (written by C. Hultquist and S. Perumal) Where two or more galaxies are separated by less than the percolation distance (i.e. in groups,clusters or large- scale structures), they are enclosed within a transparent surface. The percolation distance used here is 100 km/s in redshift space at cz=0, but increased with increasing cz to compensate for the drastic decrease in data density. The colours carry no meaning, except the blue serves to subdue the visual appearance of the distant structures (that look thicker since they were created with a larger percolation distance), in balance with the nearer structures.

3 PowerPoint presentation allows one to scroll forwards and backwards

4 SGZ+SGZ +SGY -SGY Looking in a negative SGX direction. This grid applies to all slides following. REFERENCE GRID oZOA 100 M pc

5 SGX = 5000 Each slice is 1000 km/s thick. oZOA 6dF NEARBY STRUCTURES N O D A T A F O R N O R T H E R N D E C L I N A T I O N S E R I D A N U S

6 SGX = 4500 oZOA 6dF NEARBY STRUCTURES N O D A T A F O R N O R T H E R N D E C L I N A T I O N S E R I D A N U S 100 M pc

7 SGX = 4000 oZOA 6dF NEARBY STRUCTURES N O D A T A F O R N O R T H E R N D E C L I N A T I O N S E R I D A N U S 100 M pc

8 SGX = 3500 oZOA 6dF NEARBY STRUCTURES N O D A T A F O R N O R T H E R N D E C L I N A T I O N S E R I D A N U S V M pc Newly identified voids (numbered from V1 to V526) labelled in this colour

9 SGX = 3000 oZOA 6dF NEARBY STRUCTURES N O D A T A F O R N O R T H E R N D E C L I N A T I O N S V25 V26 E R I D A N U S 100 M pc

10 SGX = 2500 oZOA 6dF NEARBY STRUCTURES N O D A T A F O R N O R T H E R N D E C L I N A T I O N S V23 V25 V26 V27 S C U L P T O R W A L L E R I D A N U S 100 M pc

11 SGX = 2000 oZOA V1 6dF NEARBY STRUCTURES N O D A T A F O R N O R T H E R N D E C L I N A T I O N S V23 V26 V27 S C U L P T O R W A L L E R I D A N U S 100 M pc

12 SGX = 1500 oZOA V1 V2 COLUMBA VOID 6dF NEARBY STRUCTURES N O D A T A F O R N O R T H E R N D E C L I N A T I O N S V23 V24 S C U L P T O R W A L L 100 M pc Previously catalogued voids (e.g. Fairall 1998) labelled in this colour

13 SGX = 1000 oZOA V1 V2 COLUMBA VOID CANIS MAJOR VOID AQUARIUS VOID 6dF NEARBY STRUCTURES FORNAX VOID N O D A T A F O R N O R T H E R N D E C L I N A T I O N S V23 V24 S C U L P T O R W A L L V28 LEPUS WALL 100 M pc

14 SGX = 500 oZOA V1 COLUMBA VOID CANIS MAJOR VOID AQUARIUS VOID ORION VOID F O R N A X W A L L 6dF NEARBY STRUCTURES FORNAX VOID N O D A T A F O R N O R T H E R N D E C L I N A T I O N S V23 V24 S C U L P T O R W A L L V M pc LEPUS WALL

15 SGX = 0 oZOA V1 COLUMBA VOID CANIS MAJOR VOID AQUARIUS VOID F O R N A X W A L L LOCAL VOID ERIDANUS VOID OUR GALAXY 6dF NEARBY STRUCTURES FORNAX VOID N O D A T A F O R N O R T H E R N D E C L I N A T I O N S V23 V24 S C U L P T O R W A L L L E P U S V M pc

16 SGX = -500 oZOA V1 COLUMBA VOID CANIS MAJOR VOID AQUARIUS VOID F O R N A X W A L L LOCAL VOID ERIDANUS VOID MICROSCOPIUM VOID CETUS FORNAX SCULPTOR VOID 6dF NEARBY STRUCTURES FORNAX VOID N O D A T A F O R N O R T H E R N D E C L I N A T I O N S V23 V24 S C U L P T O R W A L L V29 V30 L E P U S V M pc

17 SGX = oZOA V1 CANIS MAJOR VOID AQUARIUS VOID F O R N A X W A L L LOCAL VOID ERIDANUS VOID MICROSCOPIUM VOID CETUS SCULPTOR VOID 6dF NEARBY STRUCTURES FORNAX VOID N O D A T A F O R N O R T H E R N D E C L I N A T I O N S S C U L P T O R W A L L V29 V30 L E P U S V34 V37 V M pc

18 SGX = oZOA V1 AQUARIUS VOID LOCAL VOID ERIDANUS VOID MICROSCOPIUM VOID CETUS V13 SCULPTOR VOID V14 6dF NEARBY STRUCTURES N O D A T A F O R N O R T H E R N D E C L I N A T I O N S S C U L P T O R W A L L V29 V30 L E P U S V33 V34 V37 V M pc

19 SGX = oZOA AQUARIUS VOID LOCAL VOID ERIDANUS VOID MICROSCOPIUM VOID V13 HYDRA V12 V17 V18 V14 6dF NEARBY STRUCTURES N O D A T A F O R N O R T H E R N D E C L I N A T I O N S S C U L P T O R W A L L V30 V31 V32 L E P U S V33 V34 V35 V37 V38 V42 V43 V44 H Y D R A W A L L 100 M pc

20 SGX = oZOA AQUARIUS VOID LOCAL VOID ERIDANUS VOID MICROSCOPIUM VOID V13 V17 V18 V16 V14 6dF NEARBY STRUCTURES S C U L P T O R W A L L V32 V33 V34 V35 V38 V39 V42 V43 V44 V46 H Y D R A W A L L C E N T A U R U S W A L L 100 M pc

21 SGX = oZOA MICROSCOPIUM VOID V17 V16 V20 V21 V22 V19 A3229 A3742 A3565 CENTAURUS HYDRA VOID V14 6dF NEARBY STRUCTURES V32 V33 V34 V35 V36 V38 V39 C A N I S M A J O R V41 V45 V46 C E N T A U R U S W A L L 100 M pc

22 SGX = oZOA MICROSCOPIUM VOID V17 V16 V20 V21 V22 V19 HYDRA VOID V14 V15 A3656 A3574 A3559 6dF NEARBY STRUCTURES V34 V36 C A N I S M A J O R CRATER V40 V41 V45 V46 I N D U S C E N T A U R U S W A L L 100 M pc

23 SGX = oZOA MICROSCOPIUM VOID V17 V21 V22 V19 HYDRA VOID V14 A3537 6dF NEARBY STRUCTURES CRATER V40 V41 V45 V34 V47 V51 V58 I N D U S C E N T A U R U S W A L L 100 M pc

24 SGX = oZOA V21 A3627 6dF NEARBY STRUCTURES V14 V47 V48 V51 V52 V53 V54 V58 V59 (V17) C E N T A U R U S W A L L 100 M pc

25 SGX = oZOA V21 A3389 6dF NEARBY STRUCTURES CAPRICORNUS VOID V47 V49 V50 V51 V52 V53 V54 V55 (V14)V56 V57 V58 V59 V60 V61 OPHIUCHUS 100 M pc LIBRA

26 SGX = oZOA V21 A3581 APUS VOID 6dF NEARBY STRUCTURES CAPRICORNUS VOID V49 V50 V51 V52 V53 V54 V55 V56(V14) V57 V58 V59 V60 V62 V63 V72 OPHIUCHUS 100 M pc LIBRA

27 SGX = oZOA APUS VOID 6dF NEARBY STRUCTURES CAPRICORNUS VOID V49 V51 V52 V55 V56 V59 V60 V62 V64 V68 V69 V70 V71 V72 OPHIUCHUS 100 M pc

28 SGX = oZOA 6dF NEARBY STRUCTURES V49 V51 V52 V55 V64 V65 V66 APUS VOID CAPRICORNUS VOID V67 V68 V69 V70 V71 V72 V M pc

29 SGX = oZOA 6dF NEARBY STRUCTURES V49 V51 V52 V55 V64 V65 V66 APUS VOID CAPRICORNUS VOID V67 V68 V69 V71 V72 V73 V77 W A L L 100 M pc

30 SGX = oZOA 6dF NEARBY STRUCTURES APUS VOID V67 V68 V72 V73 V74 V75 V76 V77 V78 V79 V82 W A L L 100 M pc

31 SGX = oZOA 6dF NEARBY STRUCTURES V68 V73 V74 V75 V76 V77 V78 V79 V80 V81 V82 V83 W A L L 100 M pc

32 SGX = oZOA 6dF NEARBY STRUCTURES V68 V73 V74 V76 V77 V79 V80 V81 V82 V83 V86 V88 W A L L 100 M pc

33 SGX = oZOA 6dF NEARBY STRUCTURES V68 V74 V76 V79 V80 V81 V82 V83 V86 V87 V88 V89 V M pc V405 V73

34 SGX = oZOA 6dF NEARBY STRUCTURES V74 V80 V81 V84 V85 V86 V87 V88 V89 V90 SHAPLEY (a) 100 M pc V405

35 SGX = oZOA 6dF NEARBY STRUCTURES V74 V84 V85 V86 V87 V88 V89 SHAPLEY (a) 100 M pc V405

36 End of sequence


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