A supercluster of IRAS galaxies behind the Great Attractor
THE dynamics of nearby galaxies support the existence of a large concentration of mass (the 'Great Attractor') in the Centaurus region at a redshift (z) between 0.012 and 0.015 (refs 1, 2). Scaramella et al.3 have suggested that a concentration of rich clusters of galaxies at z ≈ 0.05 in t...
| Main Authors: | , , , , |
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| Format: | Journal article |
| Language: | English |
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1990
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| _version_ | 1797076909966753792 |
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| author | Allen, D Norrist, R Staveley-Smith, L Meadows, V Roche, P |
| author_facet | Allen, D Norrist, R Staveley-Smith, L Meadows, V Roche, P |
| author_sort | Allen, D |
| collection | OXFORD |
| description | THE dynamics of nearby galaxies support the existence of a large concentration of mass (the 'Great Attractor') in the Centaurus region at a redshift (z) between 0.012 and 0.015 (refs 1, 2). Scaramella et al.3 have suggested that a concentration of rich clusters of galaxies at z ≈ 0.05 in the Centaurus region may also have a significant role in perturbing the local Hubble flow. The existence of such overdense regions in the Universe would have a profound effect on ideas about the formation of large-scale structure4. At present the reality of such regions is supported by some, but not by all, studies of the streaming of distant galaxies1,2,5-9 We demonstrate here that redshifts of galaxies that are in the Infrared Astronomical Satellite (IRAS) survey show the existence of an extended supercluster at z ≈ 0.05 surrounding the concentration of clusters described by Scaramella et al. Its contribution to the Local Group peculiar (non-Hubble) velocity is probably minor, although it may dominate motions on the far side of the Great Attractor. |
| first_indexed | 2024-03-07T00:10:18Z |
| format | Journal article |
| id | oxford-uuid:78fff329-ca3a-4b97-89f0-31c6c23c86d1 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T00:10:18Z |
| publishDate | 1990 |
| record_format | dspace |
| spelling | oxford-uuid:78fff329-ca3a-4b97-89f0-31c6c23c86d12022-03-26T20:34:29ZA supercluster of IRAS galaxies behind the Great AttractorJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:78fff329-ca3a-4b97-89f0-31c6c23c86d1EnglishSymplectic Elements at Oxford1990Allen, DNorrist, RStaveley-Smith, LMeadows, VRoche, PTHE dynamics of nearby galaxies support the existence of a large concentration of mass (the 'Great Attractor') in the Centaurus region at a redshift (z) between 0.012 and 0.015 (refs 1, 2). Scaramella et al.3 have suggested that a concentration of rich clusters of galaxies at z ≈ 0.05 in the Centaurus region may also have a significant role in perturbing the local Hubble flow. The existence of such overdense regions in the Universe would have a profound effect on ideas about the formation of large-scale structure4. At present the reality of such regions is supported by some, but not by all, studies of the streaming of distant galaxies1,2,5-9 We demonstrate here that redshifts of galaxies that are in the Infrared Astronomical Satellite (IRAS) survey show the existence of an extended supercluster at z ≈ 0.05 surrounding the concentration of clusters described by Scaramella et al. Its contribution to the Local Group peculiar (non-Hubble) velocity is probably minor, although it may dominate motions on the far side of the Great Attractor. |
| spellingShingle | Allen, D Norrist, R Staveley-Smith, L Meadows, V Roche, P A supercluster of IRAS galaxies behind the Great Attractor |
| title | A supercluster of IRAS galaxies behind the Great Attractor |
| title_full | A supercluster of IRAS galaxies behind the Great Attractor |
| title_fullStr | A supercluster of IRAS galaxies behind the Great Attractor |
| title_full_unstemmed | A supercluster of IRAS galaxies behind the Great Attractor |
| title_short | A supercluster of IRAS galaxies behind the Great Attractor |
| title_sort | supercluster of iras galaxies behind the great attractor |
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