Visualizations of the 6dF Galaxy Survey with identified features including 2MRS overdensities and voids ‘Onion skins’ in Galactic coordinates, centred.

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Presentation transcript:

Visualizations of the 6dF Galaxy Survey with identified features including 2MRS overdensities and voids ‘Onion skins’ in Galactic coordinates, centred on l=300 using ‘Labyrinth’ software Tony Fairall/University of Cape Town/August 07

Grid applies to all slides following 6dF Galaxy Survey Galactic coordinates with l = 300 central +60 +30 Grid applies to all slides following 30 330 300 270 240 210 -30 -60 -90

6dF Galaxy Survey 400 < cz < 1000 Galactic coordinates with l = 300 central 400 < cz < 1000 Crater Void Colour codes for identified features Fairall Atlas of Nearby LSS 1998 2MRS Erdogdu et al overdensities 2006 2MRS Erdogdu et al voids 2006 6dF Jones-Fairall overdensities 2006 6dF Fairall voids 2006 M 83 Monoceros Void NGC 5128 30 330 300 270 240 210 Local Void Volans Void LMC SMC Cetus Void Labyrinth software wraps surfaces around minimal spanning trees. Fairall-Hultquist/University Cape Town/Aug 2007

6dF Galaxy Survey 1000 < cz < 1999 Galactic coordinates with l = 300 central 1000 < cz < 1999 Fornax Wall = de Vaucouleurs ‘Southern Supercluster’ bottom right Colour codes for identified features Fairall Atlas of Nearby LSS 1998 2MRS Erdogdu et al overdensities 2006 2MRS Erdogdu et al voids 2006 6dF Jones-Fairall overdensities 2006 6dF Fairall voids 2006 Virgo Southern Extension V5 V4 V3 30 330 300 270 240 210 Local Void Orion Void Volans Void LMC SMC Fornax Wall Fornax Cluster Labyrinth software wraps surfaces around minimal spanning trees. Fairall-Hultquist/University Cape Town/Aug 2007

6dF Galaxy Survey 2000 < cz < 2999 Galactic coordinates with l = 300 central 2000 < cz < 2999 (Virgo) Local Void dominates. Eridanus Void appears from behind Fornax Wall (in previous image). V9 Colour codes for identified features Fairall Atlas of Nearby LSS 1998 2MRS Erdogdu et al overdensities 2006 2MRS Erdogdu et al voids 2006 6dF Jones-Fairall overdensities 2006 6dF Fairall voids 2006 V10 Centaurus V8 Hydra Hydra Wall 30 330 300 270 (Puppis) 240 210 Local Void Centaurus wall Volans Void LMC SMC Eridanus Void C alpha Fornax-Doradus Eridanus Labyrinth software wraps surfaces around minimal spanning trees. Fairall-Hultquist/University Cape Town/Aug 2007 50 Mpc

(continuation of Local Void) 6dF Galaxy Survey Galactic coordinates with l = 300 central 3000 < cz < 3999 Centaurus and Hydra Clusters Corvus Void Colour codes for identified features Fairall Atlas of Nearby LSS 1998 2MRS Erdogdu et al overdensities 2006 2MRS Erdogdu et al voids 2006 6dF Jones-Fairall overdensities 2006 6dF Fairall voids 2006 Centaurus Wall Hydra Cluster V15 Centaurus Cluster V12 30 330 300 270 240 210 Micoscopium Void (continuation of Local Void) V20 V13 LMC SMC Eridanus Void Aquarius Void Pavo Spur Labyrinth software wraps surfaces around minimal spanning trees. Fairall-Hultquist/University Cape Town/Aug 2007 50 Mpc

6dF Galaxy Survey 4000 < cz < 4999 Galactic coordinates with l = 300 central 4000 < cz < 4999 Centaurus Wall with A3627 Virgo V17 Colour codes for identified features Fairall Atlas of Nearby LSS 1998 2MRS Erdogdu et al overdensities 2006 2MRS Erdogdu et al voids 2006 6dF Jones-Fairall overdensities 2006 6dF Fairall voids 2006 V16 Hydra Void C4 Centaurus Hydra (C2) (C8) 30 330 300 270 240 210 Micoscopium Void (continuation of Local Void) e n t C a u r u s W a l l Pavo-Indus-Telescopium A3627 Canis Major Void C3 LMC (N1600) Aquarius Void SMC Eridanus Void Sculptor Void Cetus Sculptor Wall V31 Labyrinth software wraps surfaces around minimal spanning trees. Fairall-Hultquist/University Cape Town/Aug 2007 50 Mpc

(continuation of Local Void) 6dF Galaxy Survey Galactic coordinates with l = 300 central 5000 < cz < 5999 V2 = V17 Colour codes for identified features Fairall Atlas of Nearby LSS 1998 2MRS Erdogdu et al overdensities 2006 2MRS Erdogdu et al voids 2006 6dF Jones-Fairall overdensities 2006 6dF Fairall voids 2006 Hydra Void WLB 248 V41 V14 V63 C8 Hydra (C9) 30 330 300 270 240 210 Micoscopium Void (continuation of Local Void) (A3627) V53 V19 Pavo-Indus Telescopium V1 Aquarius Void Indus LMC V22 V21 SMC V46 Iiiiiiiiiii iiiiiiiiiiiiiiiii V28 Columba Void Phoenix mmmm Sculptor Void Sculptor Wall Cetus A2923 Labyrinth software wraps surfaces around minimal spanning trees. Fairall-Hultquist/University Cape Town/Aug 2007 50 Mpc

6dF Galaxy Survey 6000 < cz < 6999 Galactic coordinates with l = 300 central 6000 < cz < 6999 Large Voids V14 and V64 V2 = V17 V40 Colour codes for identified features Fairall Atlas of Nearby LSS 1998 2MRS Erdogdu et al overdensities 2006 2MRS Erdogdu et al voids 2006 6dF Jones-Fairall overdensities 2006 6dF Fairall voids 2006 WLB 248 A 1605, 300 & 42 V38 V1 V62 Li bra V14 30 330 300 270 240 210 V30 V64 V1 V50 LMC V18 SMC V25 V43 Phoenix V32 V27 Labyrinth software wraps surfaces around minimal spanning trees. Fairall-Hultquist/University Cape Town/Aug 2007 50 Mpc

6dF Galaxy Survey 7000 < cz < 7999 Galactic coordinates with l = 300 central 7000 < cz < 7999 (Great Wall) SDSS CEJ159. 778641-00.784376 V361 V57 Colour codes for identified features Fairall Atlas of Nearby LSS 1998 2MRS Erdogdu et al overdensities 2006 2MRS Erdogdu et al voids 2006 6dF Jones-Fairall overdensities 2006 6dF Fairall voids 2006 Ophiuchus (north) V61 V345 V71 V72 30 330 300 270 240 210 C11 C12 V48 V64 CAN 136 Apus Void LMC SMC V29 V34 V26 Phoenix V32 V133 V33 SC 129 V170 Labyrinth software wraps surfaces around minimal spanning trees. Fairall-Hultquist/University Cape Town/Aug 2007 50 Mpc

6dF Galaxy Survey 8000 < cz < 8999 Galactic coordinates with l = 300 central 8000 < cz < 8999 V379 V58 Colour codes for identified features Fairall Atlas of Nearby LSS 1998 2MRS Erdogdu et al overdensities 2006 2MRS Erdogdu et al voids 2006 6dF Jones-Fairall overdensities 2006 6dF Fairall voids 2006 V42 Crater V68 V69 V345 V77 V72 Ophiuchus Ohhiuchus 30 330 300 270 240 210 V37 Capricornus Void V74 V48 Apus Void A3389 V54 V65 LMC V34 AS0929 SMC V51 V44 Sculptor Wall Fornax Void V237 V528 Klemola 42 V203 “Fornax Void” (See notes) V154 V153 V170 Labyrinth software wraps surfaces around minimal spanning trees. Fairall-Hultquist/University Cape Town/Aug 2007 50 Mpc

6dF Galaxy Survey 9000 < cz < 9999 Galactic coordinates with l = 300 central 9000 < cz < 9999 Note huge void V74 in centre V379 V359 V357 V358 Leo (south) Colour codes for identified features Fairall Atlas of Nearby LSS 1998 2MRS Erdogdu et al overdensities 2006 2MRS Erdogdu et al voids 2006 6dF Jones-Fairall overdensities 2006 6dF Fairall voids 2006 V381 V353 V382 V70 V78 V68 Shapley V532 V56 V59 V90 V414 30 330 300 270 240 210 V37 V74 V48 V23 LMC V34 SMC V52 V29 Sculptor Wall Fornax Void Eridanus V224 V203 V211 Labyrinth software wraps surfaces around minimal spanning trees. Fairall-Hultquist/University Cape Town/Aug 2007 50 Mpc

6dF Galaxy Survey 10000 < cz < 10999 Galactic coordinates with l = 300 central 10000 < cz < 10999 Does huge void V74 in SGH extend toV405 in NGH? Horologium-Canis Major is major structure, but is seen only in cross sections in these plots V362 Hercules V379 V359 V357 V371 Leo (south) Colour codes for identified features Fairall Atlas of Nearby LSS 1998 2MRS Erdogdu et al overdensities 2006 2MRS Erdogdu et al voids 2006 6dF Jones-Fairall overdensities 2006 6dF Fairall voids 2006 V353 V382 V342 V60 V83 V360 V39 V68 V3 Shapley V531 V73 V532 V414 V419 V405 Shapley (south) 30 330 300 270 240 210 V76 Horologium- Canis Major V245 V85 V37 V74 RXC J0712.0-6030 V48 V530 V81 Lepus V107 V47 LMC V236 V52 V35 V176 V108 V160 SMC SC180 V29 V202 V151 Abell 496 V203 V214 V213 (Rift) V155 Labyrinth software wraps surfaces around minimal spanning trees. Fairall-Hultquist/University Cape Town/Aug 2007 50 Mpc

6dF Galaxy Survey 11000 < cz < 11999 Galactic coordinates with l = 300 central 11000 < cz < 11999 V379 Hercules V359 Leo (south) Colour codes for identified features Fairall Atlas of Nearby LSS 1998 2MRS Erdogdu et al overdensities 2006 2MRS Erdogdu et al voids 2006 6dF Jones-Fairall overdensities 2006 6dF Fairall voids 2006 V79 V371 V82 V80 V348 V60 V360 V531 V68 V73 Shapley V89 V363 = V3 Shapley (a) 30 330 300 270 240 210 V245 Horologium- Canis Major V76 V85 V66 C17 V74 V530 V307 V67 Dorado V107 LMC Lepus V35 V268 SMC V282 V160 SC180 V286 V176 V252 AS0463 V267 V215 V151 V136 V132 V244 V168 V152 “Further Fornax” (See notes) V214 V213 (Rift) Labyrinth software wraps surfaces around minimal spanning trees. Fairall-Hultquist/University Cape Town/Aug 2007 50 Mpc

6dF Galaxy Survey 12000 < cz < 12999 Galactic coordinates with l = 300 central 12000 < cz < 12999 V379 V380 V392 Colour codes for identified features Fairall Atlas of Nearby LSS 1998 2MRS Erdogdu et al overdensities 2006 2MRS Erdogdu et al voids 2006 6dF Jones-Fairall overdensities 2006 6dF Fairall voids 2006 V371 V82 V348 V416 V421 V356 V364 V435 V89 V413 Shapley V389 V84 V363 C22 V3 V442 30 330 300 270 240 210 V245 V76 V174 V529 V86 C17 V85 V180 SC23 Horologium- Canis Major C24 C23 V308 V107 V67 V276 V204 LMC Lepus V55 V75 SC194 SMC V282 V176 V160 SC180 V267 V127 V185 V194 V258 V242 “Columba Void (See notes)” V152 V132 V225 “Further Fornax” (See notes) V171 V138 V214 V179 V205 Labyrinth software wraps surfaces around minimal spanning trees. Fairall-Hultquist/University Cape Town/Aug 2007 50 Mpc

6dF Galaxy Survey 13000 < cz < 13999 Galactic coordinates with l = 300 central 13000 < cz < 13999 Low density regions surround Shapley (b) V354 V354 Colour codes for identified features Fairall Atlas of Nearby LSS 1998 2MRS Erdogdu et al overdensities 2006 2MRS Erdogdu et al voids 2006 6dF Jones-Fairall overdensities 2006 6dF Fairall voids 2006 V403 Leo V410 V371 V441 V348 Shapley Shapley (b) V413 V389 V84 V454 V15 V372 V347 V442 30 330 300 270 240 210 V245 V275 V88 V529 V85 V313 V174 V262 Horologium- Canis Major V87 V180 Lepus (a) V276 LMC V75 V216 V176 SMC V241 V282 V292 V226 V127 V194 V266 V129 V269 V171 “Further Fornax” (See notes) V138 V223 V257 V214 V164 V115 V206 V178 V125 Labyrinth software wraps surfaces around minimal spanning trees. Fairall-Hultquist/University Cape Town/Aug 2007 50 Mpc

6dF Galaxy Survey 14000 < cz < 14999 Galactic coordinates with l = 300 central 14000 < cz < 14999 Shapley (b) is by far the greatest overdensity in the 6dF volume. Note too huge void V313 and others V404 V415 V355 Colour codes for identified features Fairall Atlas of Nearby LSS 1998 2MRS Erdogdu et al overdensities 2006 2MRS Erdogdu et al voids 2006 6dF Jones-Fairall overdensities 2006 6dF Fairall voids 2006 V391 V411 Leo V410 V441 V371 V348 Shapley V463 V365 V84 V440 Shapley (b) V341 V389 V386 AS0757 V477 V465 (C30) 30 330 300 270 240 210 V245 V301 C29 V88 V529 V313 V85 V277 Horologium- Canis Major V230 V149 V232 V303 V264 V87 LMC V217 Abell 3376 V200 V111 SMC V36 C28 V169 V270 V272 V226 V127 V194 V287 V129 V234 V243 V131 V138 V199 V164 V125 Labyrinth software wraps surfaces around minimal spanning trees. Fairall-Hultquist/University Cape Town/Aug 2007 50 Mpc

A low-density ‘annulus’, 6dF Galaxy Survey Galactic coordinates with l = 300 central 15000 < cz < 15999 V393 V373 A low-density ‘annulus’, with radius over 100 Mpc, surrounds Shapley (b) V355 V402 Leo Colour codes for identified features Fairall Atlas of Nearby LSS 1998 2MRS Erdogdu et al overdensities 2006 2MRS Erdogdu et al voids 2006 6dF Jones-Fairall overdensities 2006 6dF Fairall voids 2006 V428 V464 Sextens V409 Shapley (b) V475 V407 Shapley V458 V497 C30 30 330 300 270 240 210 V245 V321 V263 V212 V529 V313 V305 V527 V528 V298 V263 SC68 V100 LMC V161 V314 Horologium- Canis Major V233 SMC V101 V249 V165 V310 V127 V265 V226 V243 V197 V121 V199 V164 V137 Sculptor (b) V104 V198 Cetus V197 Labyrinth software wraps surfaces around minimal spanning trees. Fairall-Hultquist/University Cape Town/Aug 2007 50 Mpc

6dF Galaxy Survey 16000 < cz < 16999 Galactic coordinates with l = 300 central 16000 < cz < 16999 V399 V394 V374 V531 Colour codes for identified features Fairall Atlas of Nearby LSS 1998 2MRS Erdogdu et al overdensities 2006 2MRS Erdogdu et al voids 2006 6dF Jones-Fairall overdensities 2006 6dF Fairall voids 2006 V402 V428 V412 V406 Sextens V383 V487 V488 V422 V409 V495 V387 Sextens V457 V475 V485 V494 V407 Hydra (b) V500 V370 30 330 300 270 240 210 V300 V334 C29 V321 V529 V313 V305 V263 V218 V324 V298 SC68 V102 LMC V175 Horologium- Canis Major V161 V233 SMC V172 V310 V127 V294 Grus V227 V128 V121 “Southern Great Wall” (See notes) V199 V191 V530 V145 Cetus V198 Labyrinth software wraps surfaces around minimal spanning trees. Fairall-Hultquist/University Cape Town/Aug 2007 50 Mpc

Grid applies to all previous slides 6dF Galaxy Survey Galactic coordinates with l = 300 central +60 +30 Grid applies to all previous slides 30 330 300 270 240 210 -30 -60 -90

Notes Erdogdu et al label a ‘Fornax Void’ and a ‘Further Fornax Void’ but neither of these are anywhere near the direction of the foreground constellation of Fornax. Similarly their ‘Columba Void’ does not match the direction of Columba They also label a ‘Southern Great Wall’ but this is not the same as the ‘Southern Great Wall’ originally found in SSRS2, which is labelled here as the ‘Sculptor Wall’