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Article: The Durham/UKST Galaxy Redshift Survey - III. Large-scale structure via the two-point correlation function
Title | The Durham/UKST Galaxy Redshift Survey - III. Large-scale structure via the two-point correlation function |
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Authors | |
Keywords | Galaxies: clusters: general Surveys Large-scale structure of Universe Cosmology: observations Galaxies: general |
Issue Date | 1998 |
Citation | Monthly Notices of the Royal Astronomical Society, 1998, v. 296, n. 1, p. 173-190 How to Cite? |
Abstract | We have investigated the statistical clustering properties of galaxies by calculating the two-point galaxy correlation function from the optically selected Durham/ UKST Galaxy Redshift Survey. This survey is magnitude-limited to bJ ∼ 17, contains ∼ 2500 galaxies sampled at a rate of one-in-three and surveys a ∼ 4 × 106 (h-1 Mpc)3 volume of space. We have empirically determined the optimal method of estimating the two-point correlation function from just such a magnitude-limited survey. Applying our methods to this survey, we find that our redshift-space results agree well with those from previous optical surveys. In particular, we confirm the previously claimed detections of large-scale power out to ∼40 h-1 Mpc scales. We compare with two common models of cosmological structure formation and find that our two-point correlation function has power significantly in excess of the standard cold dark matter model in the 10-30 h-1 Mpc region. We therefore support the observational results of the APM galaxy survey. Given that only the redshift-space clustering can be measured directly, we use standard modelling methods and indirectly estimate the real-space two-point correlation function from the projected two-point correlation function. We then invert this projected correlation function to obtain an estimate of the spatial two-point correlation function in real space. This correlation function in real space has a lower amplitude than that in redshift space, but a steeper slope. |
Persistent Identifier | http://hdl.handle.net/10722/208809 |
ISSN | 2021 Impact Factor: 5.235 2020 SCImago Journal Rankings: 2.058 |
DC Field | Value | Language |
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dc.contributor.author | Ratcliffe, Andrew | - |
dc.contributor.author | Shanks, Tom | - |
dc.contributor.author | Parker, Quentin A. | - |
dc.contributor.author | Fong, Richard | - |
dc.date.accessioned | 2015-03-23T02:01:46Z | - |
dc.date.available | 2015-03-23T02:01:46Z | - |
dc.date.issued | 1998 | - |
dc.identifier.citation | Monthly Notices of the Royal Astronomical Society, 1998, v. 296, n. 1, p. 173-190 | - |
dc.identifier.issn | 0035-8711 | - |
dc.identifier.uri | http://hdl.handle.net/10722/208809 | - |
dc.description.abstract | We have investigated the statistical clustering properties of galaxies by calculating the two-point galaxy correlation function from the optically selected Durham/ UKST Galaxy Redshift Survey. This survey is magnitude-limited to bJ ∼ 17, contains ∼ 2500 galaxies sampled at a rate of one-in-three and surveys a ∼ 4 × 106 (h-1 Mpc)3 volume of space. We have empirically determined the optimal method of estimating the two-point correlation function from just such a magnitude-limited survey. Applying our methods to this survey, we find that our redshift-space results agree well with those from previous optical surveys. In particular, we confirm the previously claimed detections of large-scale power out to ∼40 h-1 Mpc scales. We compare with two common models of cosmological structure formation and find that our two-point correlation function has power significantly in excess of the standard cold dark matter model in the 10-30 h-1 Mpc region. We therefore support the observational results of the APM galaxy survey. Given that only the redshift-space clustering can be measured directly, we use standard modelling methods and indirectly estimate the real-space two-point correlation function from the projected two-point correlation function. We then invert this projected correlation function to obtain an estimate of the spatial two-point correlation function in real space. This correlation function in real space has a lower amplitude than that in redshift space, but a steeper slope. | - |
dc.language | eng | - |
dc.relation.ispartof | Monthly Notices of the Royal Astronomical Society | - |
dc.subject | Galaxies: clusters: general | - |
dc.subject | Surveys | - |
dc.subject | Large-scale structure of Universe | - |
dc.subject | Cosmology: observations | - |
dc.subject | Galaxies: general | - |
dc.title | The Durham/UKST Galaxy Redshift Survey - III. Large-scale structure via the two-point correlation function | - |
dc.type | Article | - |
dc.description.nature | link_to_OA_fulltext | - |
dc.identifier.doi | 10.1046/j.1365-8711.1998.01329.x | - |
dc.identifier.scopus | eid_2-s2.0-0002518599 | - |
dc.identifier.volume | 296 | - |
dc.identifier.issue | 1 | - |
dc.identifier.spage | 173 | - |
dc.identifier.epage | 190 | - |
dc.identifier.issnl | 0035-8711 | - |