The 2dF galaxy redshift survey: Wiener reconstruction of the cosmic web
We reconstruct the underlying density field of the Two-degree Field Galaxy Redshift Survey (2dFGRS) for the redshift range 0.035 < z < 0.200 using the Wiener filtering method. The Wiener filter suppresses shot noise and accounts for selection and incompleteness effects. The method reli...
| Asıl Yazarlar: | , , , , , , , , , , , , , , , , , , , , , , , , |
|---|---|
| Materyal Türü: | Journal article |
| Dil: | English |
| Baskı/Yayın Bilgisi: |
2004
|
| _version_ | 1826274674894438400 |
|---|---|
| author | Erdoǧdu, P Lahav, O Zaroubi, S Efstathiou, G Moody, S Peacock, J Colless, M Baldry, I Baugh, C Bland-Hawthorn, J Bridges, T Cannon, R Cole, S Collins, C Couch, W Dalton, G De Propris, R Driver, S Ellis, R Frenk, C Glazebrook, K Jackson, C Lewis, I Lumsden, S Maddox, S |
| author_facet | Erdoǧdu, P Lahav, O Zaroubi, S Efstathiou, G Moody, S Peacock, J Colless, M Baldry, I Baugh, C Bland-Hawthorn, J Bridges, T Cannon, R Cole, S Collins, C Couch, W Dalton, G De Propris, R Driver, S Ellis, R Frenk, C Glazebrook, K Jackson, C Lewis, I Lumsden, S Maddox, S |
| author_sort | Erdoǧdu, P |
| collection | OXFORD |
| description | We reconstruct the underlying density field of the Two-degree Field Galaxy Redshift Survey (2dFGRS) for the redshift range 0.035 < z < 0.200 using the Wiener filtering method. The Wiener filter suppresses shot noise and accounts for selection and incompleteness effects. The method relies on prior knowledge of the 2dF power spectrum of fluctuations and the combination of matter density and bias parameters, however the results are only slightly affected by changes to these parameters. We present maps of the density field. We use a variable smoothing technique with two different effective resolutions: 5 and 10 h -1 Mpc at the median redshift of the survey. We identify all major superclusters and voids in the survey. In particular, we find two large superclusters and two large local voids. The full set of colour maps can be viewed on the World Wide Web at http://www.ast.cam.ac.uk/~pirin. |
| first_indexed | 2024-03-06T22:47:03Z |
| format | Journal article |
| id | oxford-uuid:5d884f7d-1aef-4a9f-9a8b-a9f7de4f07c5 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-06T22:47:03Z |
| publishDate | 2004 |
| record_format | dspace |
| spelling | oxford-uuid:5d884f7d-1aef-4a9f-9a8b-a9f7de4f07c52022-03-26T17:35:07ZThe 2dF galaxy redshift survey: Wiener reconstruction of the cosmic webJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:5d884f7d-1aef-4a9f-9a8b-a9f7de4f07c5EnglishSymplectic Elements at Oxford2004Erdoǧdu, PLahav, OZaroubi, SEfstathiou, GMoody, SPeacock, JColless, MBaldry, IBaugh, CBland-Hawthorn, JBridges, TCannon, RCole, SCollins, CCouch, WDalton, GDe Propris, RDriver, SEllis, RFrenk, CGlazebrook, KJackson, CLewis, ILumsden, SMaddox, SWe reconstruct the underlying density field of the Two-degree Field Galaxy Redshift Survey (2dFGRS) for the redshift range 0.035 < z < 0.200 using the Wiener filtering method. The Wiener filter suppresses shot noise and accounts for selection and incompleteness effects. The method relies on prior knowledge of the 2dF power spectrum of fluctuations and the combination of matter density and bias parameters, however the results are only slightly affected by changes to these parameters. We present maps of the density field. We use a variable smoothing technique with two different effective resolutions: 5 and 10 h -1 Mpc at the median redshift of the survey. We identify all major superclusters and voids in the survey. In particular, we find two large superclusters and two large local voids. The full set of colour maps can be viewed on the World Wide Web at http://www.ast.cam.ac.uk/~pirin. |
| spellingShingle | Erdoǧdu, P Lahav, O Zaroubi, S Efstathiou, G Moody, S Peacock, J Colless, M Baldry, I Baugh, C Bland-Hawthorn, J Bridges, T Cannon, R Cole, S Collins, C Couch, W Dalton, G De Propris, R Driver, S Ellis, R Frenk, C Glazebrook, K Jackson, C Lewis, I Lumsden, S Maddox, S The 2dF galaxy redshift survey: Wiener reconstruction of the cosmic web |
| title | The 2dF galaxy redshift survey: Wiener reconstruction of the cosmic web |
| title_full | The 2dF galaxy redshift survey: Wiener reconstruction of the cosmic web |
| title_fullStr | The 2dF galaxy redshift survey: Wiener reconstruction of the cosmic web |
| title_full_unstemmed | The 2dF galaxy redshift survey: Wiener reconstruction of the cosmic web |
| title_short | The 2dF galaxy redshift survey: Wiener reconstruction of the cosmic web |
| title_sort | 2df galaxy redshift survey wiener reconstruction of the cosmic web |
| work_keys_str_mv | AT erdogdup the2dfgalaxyredshiftsurveywienerreconstructionofthecosmicweb AT lahavo the2dfgalaxyredshiftsurveywienerreconstructionofthecosmicweb AT zaroubis the2dfgalaxyredshiftsurveywienerreconstructionofthecosmicweb AT efstathioug the2dfgalaxyredshiftsurveywienerreconstructionofthecosmicweb AT moodys the2dfgalaxyredshiftsurveywienerreconstructionofthecosmicweb AT peacockj the2dfgalaxyredshiftsurveywienerreconstructionofthecosmicweb AT collessm the2dfgalaxyredshiftsurveywienerreconstructionofthecosmicweb AT baldryi the2dfgalaxyredshiftsurveywienerreconstructionofthecosmicweb AT baughc the2dfgalaxyredshiftsurveywienerreconstructionofthecosmicweb AT blandhawthornj the2dfgalaxyredshiftsurveywienerreconstructionofthecosmicweb AT bridgest the2dfgalaxyredshiftsurveywienerreconstructionofthecosmicweb AT cannonr the2dfgalaxyredshiftsurveywienerreconstructionofthecosmicweb AT coles the2dfgalaxyredshiftsurveywienerreconstructionofthecosmicweb AT collinsc the2dfgalaxyredshiftsurveywienerreconstructionofthecosmicweb AT couchw the2dfgalaxyredshiftsurveywienerreconstructionofthecosmicweb AT daltong the2dfgalaxyredshiftsurveywienerreconstructionofthecosmicweb AT deproprisr the2dfgalaxyredshiftsurveywienerreconstructionofthecosmicweb AT drivers the2dfgalaxyredshiftsurveywienerreconstructionofthecosmicweb AT ellisr the2dfgalaxyredshiftsurveywienerreconstructionofthecosmicweb AT frenkc the2dfgalaxyredshiftsurveywienerreconstructionofthecosmicweb AT glazebrookk the2dfgalaxyredshiftsurveywienerreconstructionofthecosmicweb AT jacksonc the2dfgalaxyredshiftsurveywienerreconstructionofthecosmicweb AT lewisi the2dfgalaxyredshiftsurveywienerreconstructionofthecosmicweb AT lumsdens the2dfgalaxyredshiftsurveywienerreconstructionofthecosmicweb AT maddoxs the2dfgalaxyredshiftsurveywienerreconstructionofthecosmicweb AT erdogdup 2dfgalaxyredshiftsurveywienerreconstructionofthecosmicweb AT lahavo 2dfgalaxyredshiftsurveywienerreconstructionofthecosmicweb AT zaroubis 2dfgalaxyredshiftsurveywienerreconstructionofthecosmicweb AT efstathioug 2dfgalaxyredshiftsurveywienerreconstructionofthecosmicweb AT moodys 2dfgalaxyredshiftsurveywienerreconstructionofthecosmicweb AT peacockj 2dfgalaxyredshiftsurveywienerreconstructionofthecosmicweb AT collessm 2dfgalaxyredshiftsurveywienerreconstructionofthecosmicweb AT baldryi 2dfgalaxyredshiftsurveywienerreconstructionofthecosmicweb AT baughc 2dfgalaxyredshiftsurveywienerreconstructionofthecosmicweb AT blandhawthornj 2dfgalaxyredshiftsurveywienerreconstructionofthecosmicweb AT bridgest 2dfgalaxyredshiftsurveywienerreconstructionofthecosmicweb AT cannonr 2dfgalaxyredshiftsurveywienerreconstructionofthecosmicweb AT coles 2dfgalaxyredshiftsurveywienerreconstructionofthecosmicweb AT collinsc 2dfgalaxyredshiftsurveywienerreconstructionofthecosmicweb AT couchw 2dfgalaxyredshiftsurveywienerreconstructionofthecosmicweb AT daltong 2dfgalaxyredshiftsurveywienerreconstructionofthecosmicweb AT deproprisr 2dfgalaxyredshiftsurveywienerreconstructionofthecosmicweb AT drivers 2dfgalaxyredshiftsurveywienerreconstructionofthecosmicweb AT ellisr 2dfgalaxyredshiftsurveywienerreconstructionofthecosmicweb AT frenkc 2dfgalaxyredshiftsurveywienerreconstructionofthecosmicweb AT glazebrookk 2dfgalaxyredshiftsurveywienerreconstructionofthecosmicweb AT jacksonc 2dfgalaxyredshiftsurveywienerreconstructionofthecosmicweb AT lewisi 2dfgalaxyredshiftsurveywienerreconstructionofthecosmicweb AT lumsdens 2dfgalaxyredshiftsurveywienerreconstructionofthecosmicweb AT maddoxs 2dfgalaxyredshiftsurveywienerreconstructionofthecosmicweb |