The 2dF QSO Redshift Survey - XV. Correlation analysis of redshift-Space distortions
We analyse the redshift-space (z-space) distortions of QSO clustering in the 2dF QSO Redshift Survey (2QZ). To interpret the z-space correlation function, xi(sigma,pi), we require an accurate model for the QSO real-space correlation function, xi(r). Although a single power-law xi(r) model fits the p...
| Glavni autori: | , , , , , , , |
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| Format: | Journal article |
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2005
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| _version_ | 1826290090640408576 |
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| author | Angela, J Outram, P Shanks, T Boyle, B Croom, S Loaring, N Miller, L Smith, R |
| author_facet | Angela, J Outram, P Shanks, T Boyle, B Croom, S Loaring, N Miller, L Smith, R |
| author_sort | Angela, J |
| collection | OXFORD |
| description | We analyse the redshift-space (z-space) distortions of QSO clustering in the 2dF QSO Redshift Survey (2QZ). To interpret the z-space correlation function, xi(sigma,pi), we require an accurate model for the QSO real-space correlation function, xi(r). Although a single power-law xi(r) model fits the projected correlation function (wp(sigma)) at small scales, it implies somewhat too shallow a slope for both wp(sigma) and the z-space correlation function, xi(s), at larger scales > 20 h^(-1) Mpc. Motivated by the form for xi(r) seen in the 2dF Galaxy Redshift Survey (2dFGRS) and in standard LCDM predictions, we use a double power-law model for xi(r) which gives a good fit to xi(s) and wp(sigma). The model is parametrized by a slope of gamma=1.45 for 1 |
| first_indexed | 2024-03-07T02:38:52Z |
| format | Journal article |
| id | oxford-uuid:a9bd9915-f341-4d70-a5a1-14e3895fc77a |
| institution | University of Oxford |
| last_indexed | 2024-03-07T02:38:52Z |
| publishDate | 2005 |
| record_format | dspace |
| spelling | oxford-uuid:a9bd9915-f341-4d70-a5a1-14e3895fc77a2022-03-27T03:10:28ZThe 2dF QSO Redshift Survey - XV. Correlation analysis of redshift-Space distortionsJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:a9bd9915-f341-4d70-a5a1-14e3895fc77aSymplectic Elements at Oxford2005Angela, JOutram, PShanks, TBoyle, BCroom, SLoaring, NMiller, LSmith, RWe analyse the redshift-space (z-space) distortions of QSO clustering in the 2dF QSO Redshift Survey (2QZ). To interpret the z-space correlation function, xi(sigma,pi), we require an accurate model for the QSO real-space correlation function, xi(r). Although a single power-law xi(r) model fits the projected correlation function (wp(sigma)) at small scales, it implies somewhat too shallow a slope for both wp(sigma) and the z-space correlation function, xi(s), at larger scales > 20 h^(-1) Mpc. Motivated by the form for xi(r) seen in the 2dF Galaxy Redshift Survey (2dFGRS) and in standard LCDM predictions, we use a double power-law model for xi(r) which gives a good fit to xi(s) and wp(sigma). The model is parametrized by a slope of gamma=1.45 for 1 |
| spellingShingle | Angela, J Outram, P Shanks, T Boyle, B Croom, S Loaring, N Miller, L Smith, R The 2dF QSO Redshift Survey - XV. Correlation analysis of redshift-Space distortions |
| title | The 2dF QSO Redshift Survey - XV. Correlation analysis of redshift-Space
distortions |
| title_full | The 2dF QSO Redshift Survey - XV. Correlation analysis of redshift-Space
distortions |
| title_fullStr | The 2dF QSO Redshift Survey - XV. Correlation analysis of redshift-Space
distortions |
| title_full_unstemmed | The 2dF QSO Redshift Survey - XV. Correlation analysis of redshift-Space
distortions |
| title_short | The 2dF QSO Redshift Survey - XV. Correlation analysis of redshift-Space
distortions |
| title_sort | 2df qso redshift survey xv correlation analysis of redshift space distortions |
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