Wikipedia

Pavo–Indus Supercluster

The Pavo–Indus Supercluster is a neighboring supercluster located about 60–70 Mpc (196–228 Mly)[3][2][4] away in the constellations of Pavo, Indus, and Telescopium.[5] The supercluster contains three main clusters, Abell 3656, Abell 3698, and Abell 3742.[6]

Pavo–Indus Supercluster
Location of the Pavo-Indus Supercluster relative to other superclusters.
Observation data (Epoch J2000)
Constellation(s)Pavo, Indus, Telescopium
Right ascension20h 48m 26s[1]
Declination−39° 06′ 09″[1]
Parent structureLaniakea Supercluster
Major axis66 Mpc (215 Mly)
Redshift0.015 (4,500 km/s)[2]
Distance60–70 Mpc (196–228 Mly)
Other designations
SCL 175[1]

Other groups and clusters in the supercluster include the NGC 6769 Group and Abell S805 (IC 4765 Group, Pavo II, DRCG 1842-63)[7][8] and the massive Norma Cluster.[9]

In 2014, it was announced that the Pavo–Indus Supercluster is a lobe in a greater supercluster, Laniakea, that is centered on the Great Attractor. The Virgo Supercluster would also be part of this greater supercluster, thus becoming the local supercluster.[10]

Structure

edit

The Pavo–Indus Supercluster exhibits a wall[11][12] or filamentary[13][14][15] structure that extends to a total length of 66 Mpc (215 Mly).[16] The supercluster along with the Telescopium−Grus Cloud form parts of a wall bounding the Local Void and the Sculptor Void.[13]

Nearby superclusters

edit

Centaurus Supercluster

edit
Main article: Centaurus Supercluster

In 1983, in a paper by Winkler et al it was suggested based on redshift maps of the distribution of galaxies that the Pavo–Indus Supercluster may be connected to the Centaurus Supercluster.[7] Later in 1984, in a collaboration with astronomer Tony Fairall and in a separate paper by Fairall published in 1988 titled "A redshift map of the Triangulum Australe–Ara region: further indication that Centaurus and Pavo are one and the same supercluster" it was concluded based on distribution of galaxies in redshift space that the Pavo–Indus supercluster was indeed connected to the Centaurus and Hydra supercluster and that the Virgo Supercluster was an appendage of a larger structure involving these superclusters.[8] Later studies concluded that Pavo–Indus formed part of a wall of galaxies similar in size to the CfA2 Great Wall, dubbed the Norma Wall[17] with the Norma Cluster at its center similar to the Coma Cluster.[18][17] This wall encompasses the Pavo–Indus supercluster through the Norma Cluster, passing the ZOA in the Great Attractor region, to meet up with the Centaurus–Crux Cluster at a redshift at about 5,700–6,200 km/s s and the CIZA J1324.7−5736 cluster at a redshift of 5700 km/s[17] while also splitting off to form the Centaurus Wall[19] passing the galactic plane to meet up with Centaurus Cluster[20] where the supercluster originates.[13]

Perseus–Pisces Supercluster

edit
Main article: Perseus–Pisces Supercluster

Di Nel la H. et al found no evidence of a connection between Pavo–Indus and the Perseus–Pisces Supercluster.[11] However, Tully et al. revealed the existence of a filamentary extension of the Pavo–Indus Supercluster known as the Arch[10] that caps the Local Void in the supergalactic north and provides a connection to the Perseus–Pisces Supercluster[14][15] before terminating close to the NGC 7242 Cluster.[14]

Ophiuchus Supercluster

edit
Main article: Ophiuchus Supercluster

The Pavo–Indus supercluster lies physically close to the Ophiuchus Supercluster and may be connected in an unknown filament between the two superclusters.[21]

See also

edit

References

edit
  1. ^ a b c "VizieR". vizier.cfa.harvard.edu. Retrieved 2019-09-14.
  2. ^ a b "HIPASS galaxy catalogue (HICAT) animations". www.atnf.csiro.au. Retrieved 2019-09-14.
  3. ^ Einasto, M.; Tago, E.; Jaaniste, J.; Einasto, J.; Andernach, H. (May 1997). "The supercluster–void network: I. The supercluster catalogue and large-scale distribution". Astronomy and Astrophysics Supplement Series. 123 (1): 119–133. arXiv:astro-ph/9610088. Bibcode:1997A&AS..123..119E. doi:10.1051/aas:1997340. ISSN 0365-0138.
  4. ^ Tinyakov, P.; Kawata, K.; Deligny, O. (2017-02-23). "Measurement of Anisotropy and Search for UHECR Sources". arXiv:1702.07209 [astro-ph.HE].
  5. ^ Huchra, J.; Dressler, A.; Davis, M.; Lahav, O.; Strauss, M. A.; Santiago, B. X. (1995). "The Optical Redshift Survey: Sample Selection and the Galaxy Distribution". The Astrophysical Journal. 446: 457. arXiv:astro-ph/9406049. Bibcode:1995ApJ...446..457S. doi:10.1086/175805. S2CID 17333636.
  6. ^ "Atlas of the Universe" website
  7. ^ a b Winkler, H. (1983). "The Spatial Distribution of Galaxies in the Southern Sky". Monthly Notes of the Astronomical Society of South Africa. 42: 74. Bibcode:1983MNSSA..42...74W. ISSN 0024-8266.
  8. ^ a b Fairall, A. P. (1988-01-01). "A redshift map of the Triangulum Australe-Ara region - Further indication that Centaurus and Pavo are one and the same supercluster". Monthly Notices of the Royal Astronomical Society. 230: 69–77. Bibcode:1988MNRAS.230...69F. doi:10.1093/mnras/230.1.69. ISSN 0035-8711.
  9. ^ 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.
  10. ^ a b R. Brent Tully; Helene Courtois; Yehuda Hoffman; Daniel Pomarède (2 September 2014). "The Laniakea supercluster of galaxies". Nature. 513 (7516) (published 4 September 2014): 71–3. arXiv:1409.0880. Bibcode:2014Natur.513...71T. doi:10.1038/nature13674. PMID 25186900. S2CID 205240232.
  11. ^ a b di Nella, H.; Couch, W. J.; Paturel, G.; Parker, Q. A. (1996-11-01). "Are the Perseus-Pisces chain and the Pavo-Indus wall connected?". Monthly Notices of the Royal Astronomical Society. 283 (2): 367–380. arXiv:astro-ph/9611211. Bibcode:1996MNRAS.283..367D. doi:10.1093/mnras/283.2.367. ISSN 0035-8711. S2CID 14837014.
  12. ^ Labini, F. Sylos; Montuori, M.; Di Nella, H.; Amendola, L. (1997-11-13). "Statistical properties of the LEDA redshift database". Fractals. 5 (4): 635. arXiv:astro-ph/9711148. Bibcode:1997Fract...5..635A. doi:10.1142/S0218348X97000516. S2CID 119327163.
  13. ^ a b c Courtois, Hélène M.; Pomarède, Daniel; Tully, R. Brent; Hoffman, Yehuda; Courtois, Denis (August 14, 2013). "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 1538-3881.
  14. ^ a b c Pomarède, Daniel; Hoffman, Yehuda; Courtois, Hélène M.; Tully, R. Brent (August 10, 2017). "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. S2CID 53064781.
  15. ^ a b Tully, R. Brent; Pomarède, Daniel; Graziani, Romain; Courtois, Hélène M.; Hoffman, Yehuda; Shaya, Edward J. (2019-07-22). "Cosmicflows-3: Cosmography of the Local Void". The Astrophysical Journal. 880 (1): 24. arXiv:1905.08329. Bibcode:2019ApJ...880...24T. doi:10.3847/1538-4357/ab2597. ISSN 1538-4357. S2CID 160009671.
  16. ^ Pomarède, Daniel. "Cosmic flows and large scale structures visualization" (PDF). CLUES – Constrained Local UniversE Simulations. Retrieved 2019-09-13.
  17. ^ a b c Jarrett, T. H.; Koribalski, B. S.; Kraan-Korteweg, R. C.; Woudt, P. A.; Whitney, B. A.; Meade, M. R.; Babler, B.; Churchwell, E.; Benjamin, R. A.; Indebetouw, R. (March 2007). "Discovery of Two Galaxies Deeply Embedded in the Great Attractor Wall". The Astronomical Journal. 133 (3): 979–986. arXiv:astro-ph/0611397. Bibcode:2007AJ....133..979J. doi:10.1086/510668. ISSN 0004-6256. S2CID 5930404.
  18. ^ Kraan-Korteweg, Renée C.; Lahav, Ofer (2000-09-07). "The Universe behind the Milky Way". Astronomy and Astrophysics Review. 10 (3): 211–261. arXiv:astro-ph/0005501. Bibcode:2000A&ARv..10..211K. doi:10.1007/s001590000011. ISSN 0935-4956. S2CID 14760994.
  19. ^ Radburn-Smith, D. J.; Lucey, J. R.; Woudt, P. A.; Kraan-Korteweg, R. C.; Watson, F. G. (2006-07-01). "Structures in the Great Attractor region". Monthly Notices of the Royal Astronomical Society. 369 (3): 1131–1142. arXiv:astro-ph/0603692. Bibcode:2006MNRAS.369.1131R. doi:10.1111/j.1365-2966.2006.10347.x. ISSN 1365-2966. S2CID 7915891.
  20. ^ Kraan-Korteweg, Renée C. (2006-08-09), Röser, Siegfried (ed.), "Cosmological Structures behind the Milky Way", Reviews in Modern Astronomy, Weinheim, FRG: Wiley-VCH Verlag GmbH & Co. KGaA, pp. 48–75, arXiv:astro-ph/0502217, doi:10.1002/3527608966.ch3, ISBN 978-3-527-40608-1, S2CID 119374515, retrieved 2022-01-25
  21. ^ Hasegawa, Takashi; Wakamatsu, Ken-ichi; Malkan, Matthew; Sekiguchi, Kazuhiro; Menzies, John W.; Parker, Quentin A.; Jugaku, Jun; Karoji, Hiroshi; Okamura, Sadanori (2000-08-01). "Large-scale structure of galaxies in the Ophiuchus region". Monthly Notices of the Royal Astronomical Society. 316 (2): 326–344. Bibcode:2000MNRAS.316..326H. doi:10.1046/j.1365-8711.2000.03531.x. ISSN 0035-8711.
edit
Retrieved from "https://en.wikipedia.org/w/index.php?title=Pavo–Indus_Supercluster&oldid=1234958475"