The 2dF Galaxy Redshift Survey: Higher-order galaxy correlation functions
We measure moments of the galaxy count probability distribution function in the Two-degree Field Galaxy Redshift Survey (2dFGRS). The survey is divided into volume-limited subsamples in order to examine the dependence of the higher-order clustering on galaxy luminosity. We demonstrate the hierarchic...
| Հիմնական հեղինակներ: | , , , , , , , , , , , , , , , , , , , , , , , , |
|---|---|
| Ձևաչափ: | Journal article |
| Լեզու: | English |
| Հրապարակվել է: |
2004
|
| _version_ | 1826271756548046848 |
|---|---|
| author | Croton, D Gaztañaga, E Baugh, C Norberg, P Colless, M Baldry, L Bland-Hawthorn, J Bridges, T Cannon, R Cole, S Collins, C Couch, W Dalton, G De Propris, R Driver, S Efstathiou, G Ellis, R Frenk, C Glazebrook, K Jackson, C Lahav, O Lewis, I Lumsden, S Maddox, S Madgwick, D |
| author_facet | Croton, D Gaztañaga, E Baugh, C Norberg, P Colless, M Baldry, L Bland-Hawthorn, J Bridges, T Cannon, R Cole, S Collins, C Couch, W Dalton, G De Propris, R Driver, S Efstathiou, G Ellis, R Frenk, C Glazebrook, K Jackson, C Lahav, O Lewis, I Lumsden, S Maddox, S Madgwick, D |
| author_sort | Croton, D |
| collection | OXFORD |
| description | We measure moments of the galaxy count probability distribution function in the Two-degree Field Galaxy Redshift Survey (2dFGRS). The survey is divided into volume-limited subsamples in order to examine the dependence of the higher-order clustering on galaxy luminosity. We demonstrate the hierarchical scaling of the averaged p-point galaxy correlation functions, ξ̄ p, up to p = 6. The hierarchical amplitudes, S p = S 2S p-1, are approximately independent of the cell radius used to smooth the galaxy distribution on small to medium scales. On larger scales we find that the higher-order moments can be strongly affected by the presence of rare, massive superstructures in the galaxy distribution. The skewness S 3 has a weak dependence on luminosity, approximated by a linear dependence on log luminosity. We discuss the implications of our results for simple models of linear and non-linear bias that relate the galaxy distribution to the underlying mass. |
| first_indexed | 2024-03-06T22:01:43Z |
| format | Journal article |
| id | oxford-uuid:4ed2803b-44e7-46df-bfdb-12823931a23d |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-06T22:01:43Z |
| publishDate | 2004 |
| record_format | dspace |
| spelling | oxford-uuid:4ed2803b-44e7-46df-bfdb-12823931a23d2022-03-26T16:03:30ZThe 2dF Galaxy Redshift Survey: Higher-order galaxy correlation functionsJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:4ed2803b-44e7-46df-bfdb-12823931a23dEnglishSymplectic Elements at Oxford2004Croton, DGaztañaga, EBaugh, CNorberg, PColless, MBaldry, LBland-Hawthorn, JBridges, TCannon, RCole, SCollins, CCouch, WDalton, GDe Propris, RDriver, SEfstathiou, GEllis, RFrenk, CGlazebrook, KJackson, CLahav, OLewis, ILumsden, SMaddox, SMadgwick, DWe measure moments of the galaxy count probability distribution function in the Two-degree Field Galaxy Redshift Survey (2dFGRS). The survey is divided into volume-limited subsamples in order to examine the dependence of the higher-order clustering on galaxy luminosity. We demonstrate the hierarchical scaling of the averaged p-point galaxy correlation functions, ξ̄ p, up to p = 6. The hierarchical amplitudes, S p = S 2S p-1, are approximately independent of the cell radius used to smooth the galaxy distribution on small to medium scales. On larger scales we find that the higher-order moments can be strongly affected by the presence of rare, massive superstructures in the galaxy distribution. The skewness S 3 has a weak dependence on luminosity, approximated by a linear dependence on log luminosity. We discuss the implications of our results for simple models of linear and non-linear bias that relate the galaxy distribution to the underlying mass. |
| spellingShingle | Croton, D Gaztañaga, E Baugh, C Norberg, P Colless, M Baldry, L Bland-Hawthorn, J Bridges, T Cannon, R Cole, S Collins, C Couch, W Dalton, G De Propris, R Driver, S Efstathiou, G Ellis, R Frenk, C Glazebrook, K Jackson, C Lahav, O Lewis, I Lumsden, S Maddox, S Madgwick, D The 2dF Galaxy Redshift Survey: Higher-order galaxy correlation functions |
| title | The 2dF Galaxy Redshift Survey: Higher-order galaxy correlation functions |
| title_full | The 2dF Galaxy Redshift Survey: Higher-order galaxy correlation functions |
| title_fullStr | The 2dF Galaxy Redshift Survey: Higher-order galaxy correlation functions |
| title_full_unstemmed | The 2dF Galaxy Redshift Survey: Higher-order galaxy correlation functions |
| title_short | The 2dF Galaxy Redshift Survey: Higher-order galaxy correlation functions |
| title_sort | 2df galaxy redshift survey higher order galaxy correlation functions |
| work_keys_str_mv | AT crotond the2dfgalaxyredshiftsurveyhigherordergalaxycorrelationfunctions AT gaztanagae the2dfgalaxyredshiftsurveyhigherordergalaxycorrelationfunctions AT baughc the2dfgalaxyredshiftsurveyhigherordergalaxycorrelationfunctions AT norbergp the2dfgalaxyredshiftsurveyhigherordergalaxycorrelationfunctions AT collessm the2dfgalaxyredshiftsurveyhigherordergalaxycorrelationfunctions AT baldryl the2dfgalaxyredshiftsurveyhigherordergalaxycorrelationfunctions AT blandhawthornj the2dfgalaxyredshiftsurveyhigherordergalaxycorrelationfunctions AT bridgest the2dfgalaxyredshiftsurveyhigherordergalaxycorrelationfunctions AT cannonr the2dfgalaxyredshiftsurveyhigherordergalaxycorrelationfunctions AT coles the2dfgalaxyredshiftsurveyhigherordergalaxycorrelationfunctions AT collinsc the2dfgalaxyredshiftsurveyhigherordergalaxycorrelationfunctions AT couchw the2dfgalaxyredshiftsurveyhigherordergalaxycorrelationfunctions AT daltong the2dfgalaxyredshiftsurveyhigherordergalaxycorrelationfunctions AT deproprisr the2dfgalaxyredshiftsurveyhigherordergalaxycorrelationfunctions AT drivers the2dfgalaxyredshiftsurveyhigherordergalaxycorrelationfunctions AT efstathioug the2dfgalaxyredshiftsurveyhigherordergalaxycorrelationfunctions AT ellisr the2dfgalaxyredshiftsurveyhigherordergalaxycorrelationfunctions AT frenkc the2dfgalaxyredshiftsurveyhigherordergalaxycorrelationfunctions AT glazebrookk the2dfgalaxyredshiftsurveyhigherordergalaxycorrelationfunctions AT jacksonc the2dfgalaxyredshiftsurveyhigherordergalaxycorrelationfunctions AT lahavo the2dfgalaxyredshiftsurveyhigherordergalaxycorrelationfunctions AT lewisi the2dfgalaxyredshiftsurveyhigherordergalaxycorrelationfunctions AT lumsdens the2dfgalaxyredshiftsurveyhigherordergalaxycorrelationfunctions AT maddoxs the2dfgalaxyredshiftsurveyhigherordergalaxycorrelationfunctions AT madgwickd the2dfgalaxyredshiftsurveyhigherordergalaxycorrelationfunctions AT crotond 2dfgalaxyredshiftsurveyhigherordergalaxycorrelationfunctions AT gaztanagae 2dfgalaxyredshiftsurveyhigherordergalaxycorrelationfunctions AT baughc 2dfgalaxyredshiftsurveyhigherordergalaxycorrelationfunctions AT norbergp 2dfgalaxyredshiftsurveyhigherordergalaxycorrelationfunctions AT collessm 2dfgalaxyredshiftsurveyhigherordergalaxycorrelationfunctions AT baldryl 2dfgalaxyredshiftsurveyhigherordergalaxycorrelationfunctions AT blandhawthornj 2dfgalaxyredshiftsurveyhigherordergalaxycorrelationfunctions AT bridgest 2dfgalaxyredshiftsurveyhigherordergalaxycorrelationfunctions AT cannonr 2dfgalaxyredshiftsurveyhigherordergalaxycorrelationfunctions AT coles 2dfgalaxyredshiftsurveyhigherordergalaxycorrelationfunctions AT collinsc 2dfgalaxyredshiftsurveyhigherordergalaxycorrelationfunctions AT couchw 2dfgalaxyredshiftsurveyhigherordergalaxycorrelationfunctions AT daltong 2dfgalaxyredshiftsurveyhigherordergalaxycorrelationfunctions AT deproprisr 2dfgalaxyredshiftsurveyhigherordergalaxycorrelationfunctions AT drivers 2dfgalaxyredshiftsurveyhigherordergalaxycorrelationfunctions AT efstathioug 2dfgalaxyredshiftsurveyhigherordergalaxycorrelationfunctions AT ellisr 2dfgalaxyredshiftsurveyhigherordergalaxycorrelationfunctions AT frenkc 2dfgalaxyredshiftsurveyhigherordergalaxycorrelationfunctions AT glazebrookk 2dfgalaxyredshiftsurveyhigherordergalaxycorrelationfunctions AT jacksonc 2dfgalaxyredshiftsurveyhigherordergalaxycorrelationfunctions AT lahavo 2dfgalaxyredshiftsurveyhigherordergalaxycorrelationfunctions AT lewisi 2dfgalaxyredshiftsurveyhigherordergalaxycorrelationfunctions AT lumsdens 2dfgalaxyredshiftsurveyhigherordergalaxycorrelationfunctions AT maddoxs 2dfgalaxyredshiftsurveyhigherordergalaxycorrelationfunctions AT madgwickd 2dfgalaxyredshiftsurveyhigherordergalaxycorrelationfunctions |