Talk:List of voids/workpage

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SIMBAD named voids

From SIMBAD, where the primary designation used by SIMBAD is a name.

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
Perseus-Pisces Void					no data in SIMBAD, just the name
Sculptor Void	23h 48m −24° 39′	53.0 Mpc/h	diameter = 34.8 Mpc/h		no data in SIMBAD, just the name ; corresponds to SRSS1 Void 3 and SRSS2 Void 5
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 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.

#	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.

#	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.

#	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).

#	Coordinates (B1950.0)	Distance (Mpc/h)	Diameter (Mpc/h)	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. 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. 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.
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.
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.
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.
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.

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