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Hydra–Centaurus Supercluster

January 01, 1970

The Hydra–Centaurus Supercluster (SCl 128),[2] or the Hydra and Centaurus Superclusters,[1] is a supercluster in two parts, the closest neighbour of Virgo Supercluster. It is located about 39 Mpc (127 Mly) away.[1]

Hydra–Centaurus Supercluster
Three-dimensional map of the Hydra Supercluster
Observation data (Epoch J2000)
Right ascension13h 14m 00.0s[1]
Declination−33° 18′ 00″[1]
Parent structureLaniakea Supercluster
Distance~39 Mpc (127 Mly)[2]
Other designations
Cen-Hya Supercluster, Hydra-Cen Supercluster, Hydra-Centaurus Supercluster, SCI 128[1]
See also: Galaxy group, Galaxy cluster, List of galaxy groups and clusters

Physical characteristics edit

The supercluster includes four large galaxy clusters in the Centaurus part, also known as the "4 clusters'' filament,[3] or ''4 clusters strand'':[4]

The filament which also includes the major cluster Abell S753 and exends up to around 260 Mly (80 Mpc) to reach the rich galaxy cluster Abell 3581.[3]

Antlia Wall edit

The Antlia Wall,[3] also known as the Antlia Strand,[5][6][4] Hydra Wall,[7] Hydra-Antlia wall, Hydra-Antlia extension,[8] and the Hydra-Antlia filament,[9] is a filament that emeges from the Centaurus Cluster, passes under the Zone of Avoidance (ZOA) as the "Puppis filament",[5] to link up the Lepus Cloud.[3] This filament then passes though a region containing the NGC 1600 Group before crossing the boundary where the gravitional flows of galaxies between the Laniakea and Perseus–Pisces superclusters diverge[5] to link up with the Perseus–Pisces supercluster at a distance of around 420 Mly (130 Mpc) from the Centaurus Cluster.[6] The filament contains two major clusters:

In 2014, it was revealed that the Antlia Wall along with the rest of the Hydra–Centaurus supercluster is connected to the Perseus–Pisces Supercluster.[10] Later in 2017, Pomarède et.al identified based on the flow of galaxies that the Antlia Wall along with the Lepus Cloud are part of a substantial filament known as the Centaurus–Puppis–PP Filament[5] that extends around 420 Mly (130 Mpc) from the Centaurus Cluster all the way to the Perseus–Pisces supercluster.[6] The Centaurus–Puppis–PP Filament along with the Southern Supercluster Strand[5] which contains the Eridanus-Fornax-Dorado Filament and the Telescopium−Grus Cloud,[3] are part of wall that makes up the front boundary of the Sculptor Void.

Before 2017, it was not known that the Antlia Wall and the Lepus Cloud were part of the same structure, the Centaurus–Puppis–PP Filament. This is because the Centaurus–Puppis–PP Filament goes under the ZOA of the Milky Way, which caused parts of the filament to be obscured by the disk of the galaxy on the sky, resulting in the naming of the different visible pieces of filament.[5]

Other clusters edit

Apart from the central clusters, which are 150 to 200 million light years away, several smaller clusters belong to the group.

Within the proximity of this supercluster lies the Great Attractor, dominated by the Norma Cluster (Abell 3627). This massive cluster of galaxies exerts a large gravitational force, causing all matter within 50 Mpc to experience a bulk flow of 600 km/s toward the Norma Cluster.[11]

Laniakea edit

A 2014 announcement says that the Centaurus Supercluster (Hydra–Centaurus) is just a lobe in a greater supercluster, Laniakea, that is centered on the Great Attractor. That supercluster would include the Virgo Supercluster, therefore including the Milky Way where Earth resides.

See also edit

References edit

  1. ^ a b c d e "scl 128". simbad.u-strasbg.fr. Retrieved 2023-09-03.
  2. ^ a b Einasto, M.; Einasto, J.; Tago, E.; Müller, V.; Andernach, H. (2001-11-01). "Optical and X-Ray Clusters as Tracers of the Supercluster-Void Network. I. Superclusters of Abell and X-Ray Clusters". The Astronomical Journal. 122 (5): 2222–2242. arXiv:astro-ph/0012536. Bibcode:2001AJ....122.2222E. doi:10.1086/323707. ISSN 0004-6256. S2CID 16129925.
  3. ^ a b c d e Courtois, Hélène M.; Pomarède, Daniel; Tully, R. Brent; Hoffman, Yehuda; Courtois, Denis (2013-08-14). "Cosmography of the Local Universe". The Astronomical Journal. 146 (3): 69. arXiv:1306.0091. Bibcode:2013AJ....146...69C. doi:10.1088/0004-6256/146/3/69. ISSN 0004-6256. S2CID 118625532.
  4. ^ a b Shaya, Edward J.; Tully, R. Brent; Pomarède, Daniel; Peel, Alan (2022-03-01). "Galaxy Flows within 8000 km s−1 from Numerical Action Methods". The Astrophysical Journal. 927 (2): 168. arXiv:2201.12315. Bibcode:2022ApJ...927..168S. doi:10.3847/1538-4357/ac4f66. ISSN 0004-637X.
  5. ^ a b c d e f Pomarède, Daniel; Hoffman, Yehuda; Courtois, Hélène M.; Tully, R. Brent (2017-08-10). "The Cosmic V-Web". The Astrophysical Journal. 845 (1): 55. arXiv:1706.03413. Bibcode:2017ApJ...845...55P. doi:10.3847/1538-4357/aa7f78. ISSN 0004-637X.
  6. ^ a b c Shaya, Edward J.; Tully, R. Brent; Hoffman, Yehuda; Pomarède, Daniel (2017-12-04). "Action Dynamics of the Local Supercluster". The Astrophysical Journal. 850 (2): 207. arXiv:1710.08935. Bibcode:2017ApJ...850..207S. doi:10.3847/1538-4357/aa9525. ISSN 1538-4357.
  7. ^ Fairall, Anthony P. (1998-01-01). "Large-scale structures in the universe". Large-Scale Structures in the Universe / Anthony P. Fairall. New York: Wiley. Bibcode:1998lssu.conf.....F.
  8. ^ a b Kraan-Korteweg, R. C.; Fairall, A. P.; Balkowski, C. (1995-05-01). "Extragalactic Large-scale structures behind the southern Milky Way.I. Redshifts obtained at the SAAO in the Hydra/Antlia extension". Astronomy and Astrophysics. 297: 617. arXiv:astro-ph/9411089. Bibcode:1995A&A...297..617K. ISSN 0004-6361.
  9. ^ Kraan-Korteweg, R. C.; Cayette, V.; Balkowski, C.; Fairall, A. P.; Henning, P. A. (1994). "1994ASPC...67...99K Page 99". Unveiling Large-Scale Structures Behind the Milky Way. 67: 99. Bibcode:1994ASPC...67...99K. Retrieved 2023-09-03.
  10. ^ Tully, R. Brent; Courtois, Hélène; Hoffman, Yehuda; Pomarède, Daniel (2 September 2014). "The Laniakea supercluster of galaxies". Nature. 513 (7516) (published 4 September 2014): 71–73. arXiv:1409.0880. Bibcode:2014Natur.513...71T. doi:10.1038/nature13674. PMID 25186900. S2CID 205240232.
  11. ^ Plionis, Manolis; Valdarnini, Riccardo (March 1, 1991). "Evidence for large-scale structure on scales about 300/h MPC". Monthly Notices of the Royal Astronomical Society. 249 (March 1, 1991): 46–61. Bibcode:1991MNRAS.249...46P. doi:10.1093/mnras/249.1.46.

External links edit

  • Complete detail of Hydra Supercluster on atlasoftheuniverse.com
  • Complete detail of Centaurus Supercluster on atlasoftheuniverse.com


January 01, 1970
hydra, centaurus, supercluster, hydra, centaurus, superclusters, supercluster, parts, closest, neighbour, virgo, supercluster, located, about, away, three, dimensional, hydra, superclusterobservation, data, epoch, j2000, right, ascension13h, declination, paren. The Hydra Centaurus Supercluster SCl 128 2 or the Hydra and Centaurus Superclusters 1 is a supercluster in two parts the closest neighbour of Virgo Supercluster It is located about 39 Mpc 127 Mly away 1 Hydra Centaurus SuperclusterThree dimensional map of the Hydra SuperclusterObservation data Epoch J2000 Right ascension13h 14m 00 0s 1 Declination 33 18 00 1 Parent structureLaniakea SuperclusterDistance 39 Mpc 127 Mly 2 Other designationsCen Hya Supercluster Hydra Cen Supercluster Hydra Centaurus Supercluster SCI 128 1 See also Galaxy group Galaxy cluster List of galaxy groups and clusters Contents 1 Physical characteristics 1 1 Antlia Wall 1 1 1 Other clusters 2 Laniakea 3 See also 4 References 5 External linksPhysical characteristics editThe supercluster includes four large galaxy clusters in the Centaurus part also known as the 4 clusters filament 3 or 4 clusters strand 4 Abell 3526 Centaurus Cluster Abell 3565 Abell 3574 Abell 3581 The filament which also includes the major cluster Abell S753 and exends up to around 260 Mly 80 Mpc to reach the rich galaxy cluster Abell 3581 3 Antlia Wall edit The Antlia Wall 3 also known as the Antlia Strand 5 6 4 Hydra Wall 7 Hydra Antlia wall Hydra Antlia extension 8 and the Hydra Antlia filament 9 is a filament that emeges from the Centaurus Cluster passes under the Zone of Avoidance ZOA as the Puppis filament 5 to link up the Lepus Cloud 3 This filament then passes though a region containing the NGC 1600 Group before crossing the boundary where the gravitional flows of galaxies between the Laniakea and Perseus Pisces superclusters diverge 5 to link up with the Perseus Pisces supercluster at a distance of around 420 Mly 130 Mpc from the Centaurus Cluster 6 The filament contains two major clusters Hydra Cluster A1060 Antlia Cluster AS0636 8 In 2014 it was revealed that the Antlia Wall along with the rest of the Hydra Centaurus supercluster is connected to the Perseus Pisces Supercluster 10 Later in 2017 Pomarede et al identified based on the flow of galaxies that the Antlia Wall along with the Lepus Cloud are part of a substantial filament known as the Centaurus Puppis PP Filament 5 that extends around 420 Mly 130 Mpc from the Centaurus Cluster all the way to the Perseus Pisces supercluster 6 The Centaurus Puppis PP Filament along with the Southern Supercluster Strand 5 which contains the Eridanus Fornax Dorado Filament and the Telescopium Grus Cloud 3 are part of wall that makes up the front boundary of the Sculptor Void Before 2017 it was not known that the Antlia Wall and the Lepus Cloud were part of the same structure the Centaurus Puppis PP Filament This is because the Centaurus Puppis PP Filament goes under the ZOA of the Milky Way which caused parts of the filament to be obscured by the disk of the galaxy on the sky resulting in the naming of the different visible pieces of filament 5 Other clusters edit Apart from the central clusters which are 150 to 200 million light years away several smaller clusters belong to the group Within the proximity of this supercluster lies the Great Attractor dominated by the Norma Cluster Abell 3627 This massive cluster of galaxies exerts a large gravitational force causing all matter within 50 Mpc to experience a bulk flow of 600 km s toward the Norma Cluster 11 Laniakea editA 2014 announcement says that the Centaurus Supercluster Hydra Centaurus is just a lobe in a greater supercluster Laniakea that is centered on the Great Attractor That supercluster would include the Virgo Supercluster therefore including the Milky Way where Earth resides See also editAbell catalogue Great Attractor Large scale structure of the universe List of Abell clusters SuperclusterReferences edit a b c d e scl 128 simbad u strasbg fr Retrieved 2023 09 03 a b Einasto M Einasto J Tago E Muller V Andernach H 2001 11 01 Optical and X Ray Clusters as Tracers of the Supercluster Void Network I Superclusters of Abell and X Ray Clusters The Astronomical Journal 122 5 2222 2242 arXiv astro ph 0012536 Bibcode 2001AJ 122 2222E doi 10 1086 323707 ISSN 0004 6256 S2CID 16129925 a b c d e Courtois Helene M Pomarede Daniel Tully R Brent Hoffman Yehuda Courtois Denis 2013 08 14 Cosmography of the Local Universe The Astronomical Journal 146 3 69 arXiv 1306 0091 Bibcode 2013AJ 146 69C doi 10 1088 0004 6256 146 3 69 ISSN 0004 6256 S2CID 118625532 a b Shaya Edward J Tully R Brent Pomarede Daniel Peel Alan 2022 03 01 Galaxy Flows within 8000 km s 1 from Numerical Action Methods The Astrophysical Journal 927 2 168 arXiv 2201 12315 Bibcode 2022ApJ 927 168S doi 10 3847 1538 4357 ac4f66 ISSN 0004 637X a b c d e f Pomarede Daniel Hoffman Yehuda Courtois Helene M Tully R Brent 2017 08 10 The Cosmic V Web The Astrophysical Journal 845 1 55 arXiv 1706 03413 Bibcode 2017ApJ 845 55P doi 10 3847 1538 4357 aa7f78 ISSN 0004 637X a b c Shaya Edward J Tully R Brent Hoffman Yehuda Pomarede Daniel 2017 12 04 Action Dynamics of the Local Supercluster The Astrophysical Journal 850 2 207 arXiv 1710 08935 Bibcode 2017ApJ 850 207S doi 10 3847 1538 4357 aa9525 ISSN 1538 4357 Fairall Anthony P 1998 01 01 Large scale structures in the universe Large Scale Structures in the Universe Anthony P Fairall New York Wiley Bibcode 1998lssu conf F a b Kraan Korteweg R C Fairall A P Balkowski C 1995 05 01 Extragalactic Large scale structures behind the southern Milky Way I Redshifts obtained at the SAAO in the Hydra Antlia extension Astronomy and Astrophysics 297 617 arXiv astro ph 9411089 Bibcode 1995A amp A 297 617K ISSN 0004 6361 Kraan Korteweg R C Cayette V Balkowski C Fairall A P Henning P A 1994 1994ASPC 67 99K Page 99 Unveiling Large Scale Structures Behind the Milky Way 67 99 Bibcode 1994ASPC 67 99K Retrieved 2023 09 03 Tully R Brent Courtois Helene Hoffman Yehuda Pomarede Daniel 2 September 2014 The Laniakea supercluster of galaxies Nature 513 7516 published 4 September 2014 71 73 arXiv 1409 0880 Bibcode 2014Natur 513 71T doi 10 1038 nature13674 PMID 25186900 S2CID 205240232 Plionis Manolis Valdarnini Riccardo March 1 1991 Evidence for large scale structure on scales about 300 h MPC Monthly Notices of the Royal Astronomical Society 249 March 1 1991 46 61 Bibcode 1991MNRAS 249 46P doi 10 1093 mnras 249 1 46 External links editComplete detail of Hydra Supercluster on atlasoftheuniverse com Complete detail of Centaurus Supercluster on atlasoftheuniverse com Retrieved from https en wikipedia org w index php title Hydra Centaurus Supercluster amp oldid 1216932510, wikipedia, wiki, book, books, library,

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