Astronomy:Pavo-Indus Supercluster

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Pavo-Indus Supercluster
Pavo-Indo Supercluster.jpg
Location of the Pavo-Indus Supercluster relative to other superclusters.
Observation data (Epoch J2000)
Constellation(s)Pavo, Indus, Telescopium
Right ascension 20h 48m 26s[1]
Declination−39° 06′ 09″[1]
Major axis66 Mpc (215 Mly)
Redshift0.015 (4,500 km/s)[2]
Distance
(co-moving)
60–70 Mpc (196–228 Mly)
Other designations
SCL 175[1]
See also: Galaxy group, Galaxy cluster, List of galaxy groups and clusters

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]

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

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]

Nearby Superclusters

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, Pomarède et al. revealed the existence of a filamentary extension of the Pavo-Indus Supercluster known as the Arch 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]

See also

References

  1. 1.0 1.1 1.2 "VizieR". http://vizier.cfa.harvard.edu/viz-bin/VizieR-5?-ref=VIZ5d7d2b2f168eb&-out.add=.&-source=J/AJ/122/2222/tableb1&recno=75. 
  2. 2.0 2.1 "HIPASS galaxy catalogue (HICAT) animations". https://www.atnf.csiro.au/people/mcalabre/animations/index.html. 
  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. doi:10.1051/aas:1997340. ISSN 0365-0138. 
  4. Tinyakov, P.; Kawata, K.; Deligny, O. (2017-02-23) (in en). Measurement of Anisotropy and Search for UHECR Sources. 
  5. Huchra, J.; Dressler, A.; Davis, M.; Lahav, O.; Strauss, M. A.; Santiago, B. X. (1994-06-16). "The Optical Redshift Survey: Sample Selection and the Galaxy Distribution" (in en). The Astrophysical Journal 446: 457. doi:10.1086/175805. 
  6. "Atlas of the Universe" website
  7. Winkler, H. (1983). "The Spatial Distribution of Galaxies in the Southern Sky". Monthly Notes of the Astronomical Society of South Africa 42: 74. ISSN 0024-8266. Bibcode1983MNSSA..42...74W. 
  8. 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. doi:10.1093/mnras/230.1.69. ISSN 0035-8711. Bibcode1988MNRAS.230...69F. 
  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. doi:10.1088/0004-6256/146/3/69. ISSN 0004-6256. http://stacks.iop.org/1538-3881/146/i=3/a=69?key=crossref.9d8903295f1377420ab5f2fa33335761. 
  10. R. Brent Tully; Helene Courtois; Yehuda Hoffman; Daniel Pomarède (2 September 2014). "The Laniakea supercluster of galaxies". Nature 513 (7516): 71–3. doi:10.1038/nature13674. PMID 25186900. Bibcode2014Natur.513...71T. 
  11. 11.0 11.1 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. doi:10.1093/mnras/283.2.367. ISSN 0035-8711. Bibcode1996MNRAS.283..367D. 
  12. Labini, F. Sylos; Montuori, M.; Di Nella, H.; Amendola, L. (1997-11-13) (in en). Statistical properties of the LEDA redshift database. 
  13. Courtois, Hélène M.; Pomarède, Daniel; Tully, R. Brent; Hoffman, Yehuda; Courtois, Denis (August 14, 2013). "Cosmography of the Local Universe" (in en). The Astronomical Journal 146 (3): 69. doi:10.1088/0004-6256/146/3/69. ISSN 1538-3881. 
  14. 14.0 14.1 14.2 Pomarède, Daniel; Hoffman, Yehuda; Courtois, Hélène M.; Tully, R. Brent (August 10, 2017). "The Cosmic V-Web" (in en). The Astrophysical Journal 845 (1): 55. doi:10.3847/1538-4357/aa7f78. ISSN 0004-637X. 
  15. 15.0 15.1 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. doi:10.3847/1538-4357/ab2597. ISSN 1538-4357. 
  16. Pomarède, Daniel. "Cosmic flows and large scale structures visualization". http://www.clues-project.org/misc/clues-workshop-2012/CLUES_DanielPomarede.pdf. 

External links

https://en.wikipedia.org/wiki/Pavo-Indus Supercluster was the original source. Read more.