Talk:List of voids/workpage
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Forenotes
Work Area
Sample area
Void (astronomy) - new table
- new table
Name | Coordinates | Distance | Dimensions | Data | Notes |
---|---|---|---|---|---|
Local Void | 18h 38m +18° | Diameter = 60 Mpc | |||
Giant Void | 13h 01m +38.7° | z=0.116 | Diameter = 300-400 Mpc | "Giant Void in NGH" or "AR-Lp 36" ; NGH stands for "Northern Galactic Hemisphere" ; discovered in 1988 [1] It is the largest void in the NGH where z<0.14 | |
Bootes Void | |||||
Capricornus Void | |||||
Cassiopeia-Cepheus Void | also called "CAS-CEP Region", "CEP-CAS Region", "Cepheus-Cassiopeia Void" or some variant thereof. | ||||
Eridanus Void | This void is separated from the Sculptor void by a sheet of galaxies. [3] | ||||
Eridanus Supervoid (Great Void) |
The claimed Eridanus Supervoid or "Great Void", reported on 24 August 2007 by the NRAO from Very Large Array Sky Survey data.[4] This void, if real, would be much larger than the others listed here, being about 300/h Mpc in diameter and 1800–3000/h Mpc distant (where h is the Hubble constant). It would be associated with (and be the explanation of) a cold spot in the cosmic microwave background at the sky location. This void is also located at z=1, which is much farther away than those included in the table.
The evidence for such a "Great Void" is disputed by Smith and Huterer.[5] They showed that the claims made of observational evidence for such a void from survey data neglected systematic effects, and did not account for a posteriori choices made in analyzing data. | ||||
Southern Eridanus Void | The Southern Eridanus void is connected to the Eridanus void by a hole in the distribution of galaxies separating the two. A hole in the distribution of galaxies separating Sculptor and Southern Eridanus voids the size of (redshift) 1250km/s appears to exist. [3] | ||||
Hercules Void | no data in SIMBAD, just the name | ||||
Microscopium Void | A hole in the distribution of galaxies separating Sculptor and Microscopium voids the size of (redshift) 1250km/s appears to exist. This is roughly 1/2 of Microscopium's diameter. [3] | ||||
Ophiucus Void | near 17h −25° | less than 5000 km/s (the outer limit) | perhaps 0-5000 km/s | 25% of average universe density is the void density of matter | The far end of this void is defined by the Ophiucus Supercluster [6] |
Perseus-Pisces Void | |||||
Sculptor Void | 23h 48m −24° 39′ | diameter = 34.8 Mpc/h | corresponds to SRSS1 Void 3 and SRSS2 Void 5 [7] This void is separated from the Eridanus void by a sheet of galaxies. A hole in the distribution of galaxies separating Sculptor and Micrsocopium voids the size of (redshift) 1250km/s appears to exist. A hole in the distribution of galaxies separating Sculptor and Southern Eridanus voids the size of (redshift) 1250km/s appears to exist. [3] | ||
Taurus Void | Diameter = 100 Mly | The Taurus Void appears large and circular, and has walls of galaxies surrounding it. It lies next to the Perseus-Pisces Supercluster, and is the most visually identifiable. Several galaxies have been found to reside in the void, such as UGC 2627 and UGC 2629, both approximately 185 million light years away. [8] |
- candidates for inclusion
Name | Dimensions | Location | Data | Notes |
---|---|---|---|---|
Sagittarius Void |
List of voids - new table
Scratch area
SIMBAD named voids
From SIMBAD, where the primary designation used by SIMBAD is a name. [9]
Name | Coordinates | Distance | Dimensions | Data | Notes |
---|---|---|---|---|---|
Local Void | 18h 38m +18° | ||||
Bootes Void | no data in SIMBAD, just the name | ||||
Cassiopeia-Cepheus Void | also called "CAS-CEP Region" or the reverse variations; no data in SIMBAD, just the name | ||||
Hercules Void | no data in SIMBAD, just the name | ||||
Ophiucus Void | near 17h −25° | less than 5000 km/s (the outer limit) | perhaps 0-5000 km/s | 25% of average universe density is the void density of matter | no data in SIMBAD, just the name ; The far end of this void is defined by the Ophiucus Supercluster [10] |
Perseus-Pisces Void | no data in SIMBAD, just the name | ||||
Sculptor Void | 23h 48m −24° 39′ | diameter = 34.8 Mpc/h | no data in SIMBAD, just the name ; corresponds to SRSS1 Void 3 and SRSS2 Void 5 [11] | ||
Giant Void in NGH | 13h 01m +38.7° | z=0.116 | diameter = 300-400 Mpc | "Giant Void", aka AR-Lp 36, aka GV ; NGH stands for "Northern Galactic Hemisphere" ; discovered in 1988 [12] It is the largest void in the NGH where z<0.14 |
SSRS1 list
A redshift survey of galaxies in the southern sky in 1988, out to a distance of 120 Mpc/h, revealed some voids. [14]
# | Coordinates of the centre |
Distance to the centre (V) |
Dimensions W x H x D (h-1Mpc) |
Notes |
---|---|---|---|---|
1 | 1.5h −50° | 3000 km/s | 30 x 30 x 40 | Located just behind the galaxy concentration in Eridanus-Fornax-Dorado |
2 | 21h −25° | 5000 km/s | 30 x 30 x 30 | |
3 | 23.5h −35° | 6000 km/s | 70 x 30 x 50 | |
4 | 4h −40° | 9000 km/s | 50 x 100 x 50 |
SSRS2 list
In 1994, a redshift survey in the southern sky identified 18 voids, 11 of which are major voids. [15]
# | Coordinates of the centre |
Distance to the centre (r) |
Diameter (h-1Mpc) |
Notes |
---|---|---|---|---|
1 | 1h 33m −16° 45′ | 85.7 | 54.3 | |
2 | 3h 34m −28° 50′ | 99.7 | 56.2 | SRSS1 Void 4 |
3 | 22h 25m −14° 46′ | 107.2 | 60.8 | |
4 | 21h 43m −14° 40′ | 66.7 | 35.6 | |
5 | 23h 48m −24° 39′ | 53.0 | 34.8 | SRSS1 Void 3 (Sculptor Void) |
6 | 3h 56m −20° 11′ | 56.5 | 32.0 | |
7 | 3h 17m −11° 40′ | 77.2 | 25.5 | |
8 | 23h 20m −12° 32′ | 83.9 | 27.8 | |
9 | 3h 06m −13° 47′ | 114.6 | 39.0 | |
10 | 0h 26m −9° 17′ | 104.7 | 34.8 | |
11 | 0h 21m −29° 43′ | 112.8 | 42.9 | |
12 | 23h 03m −32° 35′ | 74.8 | 25.0 | |
13 | 1h 23m −19° 36′ | 31.0 | 22.1 | SRSS1 Void 1 |
14 | 21h 28m −29° 28′ | 87.2 | 21.3 | |
15 | 21h 24m −33° 17′ | 116.1 | 27.3 | |
16 | 21h 43m −18° 41′ | 36.5 | 20.3 | |
17 | 3h 42m −21° 21′ | 32.1 | 19.0 | |
18 | 4h 18m −8° 42′ | 85.9 | 21.1 |
Tully list
In 1985, Tully determined a local dominant supercluster plane, and found the Pisces-Cetus Supercluster Complex. [16]
# | Coordinates of the centre |
Distance to the centre (h-1Mpc) |
Diameter (h-1Mpc) |
Notes |
---|---|---|---|---|
1 | 17.0h 80° | 90 | 140 | |
2 | 21.0h −7° | 100 | 136 | |
3 | 8.6h +13° | 150 | 150 | |
4 | 21.5h +5° | 170 | 173 | |
5 | 14.3h +52° | 180 | 158 | Bootes Void |
6 | 23.0h −16° | 190 | 171 | |
7 | 12.8h +14° | 190 | 174 | |
8 | 10.0h +35° | 250 | 170 | |
9 | 2.6h −11° | 280 | 229 | |
10 | 8.7h +58° | 310 | 243 | |
11 | 16.8h +5° | 310 | 270 |
EETDA list
A 1994 census lists a total of 27 supervoids within a cube of 740 Mpc a side, centered on us (z=0.1 distant sphere).[17]
# | Coordinates (B1950.0) |
Distance (Mpc/h) [Note 1] |
Diameter (Mpc/h) [Note 2] |
Notes |
---|---|---|---|---|
1 | 19.0h −57.1° | 134 | 88 | |
2 | 28.2h −12.3° | 207 | 96 | |
3 | 34.8h −61.9° | 216 | 72 | |
4 | 36.6h −33.5° | 241 | 86 | |
5 | 37.8h −36.1° | 129 | 92 | |
6 | 46.0h −21.4° | 236 | 72 | |
7 | 62.0h −8.0° | 248 | 100 | |
8 | 71.2h −38.3° | 201 | 76 | |
9 | 121.7h −1.5° | 96 | 112 | Southern Local Supervoid |
10 | 130.0h +49.3° | 246 | 144 | |
11 | 140.4h +10.5° | 160 | 92 | |
12 | 146.9h +27.4° | 227 | 106 | |
13 | 153.1h −11.4° | 246 | 94 | |
14 | 159.9h +1.2° | 167 | 68 | |
15 | 161.6h −32.2° | 241 | 98 | |
16 | 167.4h +22.8° | 222 | 74 | |
17 | 186.9h −15.6° | 216 | 94 | |
18 | 196.8h +9.5° | 119 | 102 | |
19 | 204.8h +35.7° | 119 | 108 | |
20 | 214.6h +13.6° | 216 | 78 | Boötes void (Great Void) |
21 | 216.7h +56.5° | 143 | 116 | |
22 | 219.8h +57.9° | 246 | 96 | |
23 | 220.2h +33.9° | 219 | 72 | |
24 | 256.1h −4.8° | 61 | 104 | Northern Local Supervoid |
25 | 353.0h −59.4° | 198 | 74 | |
26 | 356.6h +22.2° | 246 | 80 | |
27 | 358.9h −33.1° | 241 | 70 |
Voids
- Capricornus Void
- The claimed Eridanus Supervoid or "Great Void", reported on 24 August 2007 by the NRAO from Very Large Array Sky Survey data.[18] This void, if real, would be much larger than the others listed here, being about 300/h Mpc in diameter and 1800–3000/h Mpc distant (where h is the Hubble constant). It would be associated with (and be the explanation of) a cold spot in the cosmic microwave background at the sky location. This void is also located at z=1, which is much farther away than those included in the table.
The evidence for such a "Great Void" is disputed by Smith and Huterer.[19] They showed that the claims made of observational evidence for such a void from survey data neglected systematic effects, and did not account for a posteriori choices made in analyzing data.
Name | Dimensions | Location | Data | Notes |
---|---|---|---|---|
Local Void | 60 Mpc in diameter | 18h 38m +18° | ||
Eridanus Void | This void is separated from the Sculptor void by a sheet of galaxies. [3] | |||
Microscopium Void | A hole in the distribution of galaxies separating Sculptor and Microscopium voids the size of (redshift) 1250km/s appears to exist. This is roughly 1/2 of Microscopium's diameter. [3] | |||
Sagittarius Void | ||||
Sculptor Void | This void is separated from the Eridanus void by a sheet of galaxies. A hole in the distribution of galaxies separating Sculptor and Micrsocopium voids the size of (redshift) 1250km/s appears to exist. A hole in the distribution of galaxies separating Sculptor and Southern Eridanus voids the size of (redshift) 1250km/s appears to exist. [3] | |||
Southern Eridanus Void | The Southern Eridanus void is connected to the Eridanus void by a hole in the distribution of galaxies separating the two. A hole in the distribution of galaxies separating Sculptor and Southern Eridanus voids the size of (redshift) 1250km/s appears to exist. [3] | |||
Taurus Void | 100 million light years in diameter | The Taurus Void appears large and circular, and has walls of galaxies surrounding it. It lies next to the Perseus-Pisces Supercluster, and is the most visually identifiable. Several galaxies have been found to reside in the void, such as UGC 2627 and UGC 2629, both approximately 185 million light years away. [20] |
Endnotes
References
- ^ "The Northern Cone of Metagalaxy" (Kopylov et al. 1988)
- ^ Template:PDF Kopylov, A. I.; Kopylova, F. G. (2002) "Search for streaming motion of galaxy clusters around the Giant Void" Astronomy and Astrophysics, v.382, p.389-396 Bibcode:2002A&A...382..389K doi:10.1051/0004-6361:20011500
- ^ a b c d e f g h Astronomy and Astrophysics, vol. 229, no. 1, March 1990, p. 75-79. ; "A two-dimensional sheet of galaxies between two southern voids" ; 03/1990 ; ISSN 0004-6361 ; Bibcode:1990A&A...229...75M
- ^ "Astronomers Find Enormous Hole in the Universe". National Radio Astronomy Observatory Press release, retrieved 24 August 2007.
- ^ "No evidence for the cold spot in the NVSS radio survey", Kendrick Smith and Dragan Huterer (2008).
- ^ Template:PDF Hasegawa, Takashi; Wakamatsu, Ken-ichi; Malkan, Matthew; Sekiguchi, Kazuhiro; Menzies, John W.; Parker, Quentin A.; Jugaku, Jun; Karoji, Hiroshi; Okamura, Sadanori (2000) "Large-scale structure of galaxies in the Ophiuchus region" Monthly Notices of the Royal Astronomical Society, Volume 316, Issue 2, pp. 326-344 Bibcode:2000MNRAS.316..326H doi:10.1046/j.1365-8711.2000.03531.x
- ^ Template:PDF El-Ad, Hagai; Piran, Tsvi (1997) "Voids in the Large-Scale Structure" Astrophysical Journal v.491, p.421 Bibcode:1997ApJ...491..421E doi:10.1086/304973
- ^ NASA, "Cosmic Distance Scale"
- ^ SIMBAD, "list of objects of type 'vid'" (accessed 15 Septembe 2009)
- ^ Template:PDF Hasegawa, Takashi; Wakamatsu, Ken-ichi; Malkan, Matthew; Sekiguchi, Kazuhiro; Menzies, John W.; Parker, Quentin A.; Jugaku, Jun; Karoji, Hiroshi; Okamura, Sadanori (2000) "Large-scale structure of galaxies in the Ophiuchus region" Monthly Notices of the Royal Astronomical Society, Volume 316, Issue 2, pp. 326-344 Bibcode:2000MNRAS.316..326H doi:10.1046/j.1365-8711.2000.03531.x
- ^ Template:PDF El-Ad, Hagai; Piran, Tsvi (1997) "Voids in the Large-Scale Structure" Astrophysical Journal v.491, p.421 Bibcode:1997ApJ...491..421E doi:10.1086/304973
- ^ "The Northern Cone of Metagalaxy" (Kopylov et al. 1988)
- ^ Template:PDF Kopylov, A. I.; Kopylova, F. G. (2002) "Search for streaming motion of galaxy clusters around the Giant Void" Astronomy and Astrophysics, v.382, p.389-396 Bibcode:2002A&A...382..389K doi:10.1051/0004-6361:20011500
- ^ Template:PDF da Costa, L. Nicolaci; Pellegrini, P. S.; Sargent, W. L. W.; Tonry, J.; Davis, M.; Meiksin, A.; Latham, David W.; Menzies, J. W.; Coulson, I. A. (1988) [ "The Southern Sky Redshift Survey"] Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 327, April 15, 1988, p. 544-560 Bibcode:1988ApJ...327..544D {{doi:10.1086/166215}}
- ^ Template:PDF El-Ad, Hagai; Piran, Tsvi (1997) "Voids in the Large-Scale Structure" Astrophysical Journal v.491, p.421 Bibcode:1997ApJ...491..421E doi:10.1086/304973
- ^ Template:PDF Tully, R. B. (1986) "Alignment of clusters and galaxies on scales up to 0.1 C" Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 303, April 1, 1986, p. 25-38 Bibcode:1986ApJ...303...25T doi:10.1086/164049
- ^ Einasto, M (1994-07-15), "The Structure of the Universe Traced by Rich Clusters of Galaxies", Monthly Notices of the Royal Astronomical Society, 269 Bibcode:1994MNRAS.269..301E
- ^ "Astronomers Find Enormous Hole in the Universe". National Radio Astronomy Observatory Press release, retrieved 24 August 2007.
- ^ "No evidence for the cold spot in the NVSS radio survey", Kendrick Smith and Dragan Huterer (2008).
- ^ NASA, "Cosmic Distance Scale"