Loading…
Constraints on the Topology of the Universe from the Wilkinson Microwave Anisotropy Probe First-Year Sky Maps
We compute the covariance expected between the spherical harmonic coefficients a sub(lm) of the cosmic microwave temperature anisotropy if the universe had a compact topology. For a fundamental cell size smaller than the distance to the decoupling surface, off-diagonal components carry more informat...
Saved in:
| Published in: | The Astrophysical journal 2006-07, Vol.645 (2), p.820-825 |
|---|---|
| Main Authors: | , |
| Format: | Article |
| Language: | English |
| Subjects: | |
| Citations: | Items that this one cites Items that cite this one |
| Online Access: | Get full text |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| cited_by | cdi_FETCH-LOGICAL-c377t-45d729fc83ffdf6f21573d5043a4b67f88530d83b584f86fe383e0fb6aab40173 |
|---|---|
| cites | cdi_FETCH-LOGICAL-c377t-45d729fc83ffdf6f21573d5043a4b67f88530d83b584f86fe383e0fb6aab40173 |
| container_end_page | 825 |
| container_issue | 2 |
| container_start_page | 820 |
| container_title | The Astrophysical journal |
| container_volume | 645 |
| creator | Phillips, N. G Kogut, A |
| description | We compute the covariance expected between the spherical harmonic coefficients a sub(lm) of the cosmic microwave temperature anisotropy if the universe had a compact topology. For a fundamental cell size smaller than the distance to the decoupling surface, off-diagonal components carry more information than the diagonal components (the power spectrum). We use a maximum likelihood analysis to compare the Wilkinson Microwave Anisotropy Probe (WMAP) first-year data to models with a cubic topology. The data are compatible with finite flat topologies with fundamental domain L > 1.2 times the distance to the decoupling surface at a 95% confidence level. The WMAP data show reduced power at the quadrupole and octopole, but they do not show the correlations expected for a compact topology and are indistinguishable from infinite models. |
| doi_str_mv | 10.1086/432861 |
| format | article |
| fullrecord | <record><control><sourceid>proquest_iop_p</sourceid><recordid>TN_cdi_iop_primary_10_1086_432861</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>743143679</sourcerecordid><originalsourceid>FETCH-LOGICAL-c377t-45d729fc83ffdf6f21573d5043a4b67f88530d83b584f86fe383e0fb6aab40173</originalsourceid><addsrcrecordid>eNp90V9LwzAQAPAgCs5_nyE-qCBU0yZN0kcZToUNBRX1KaRtotGuqblO2be33WSCgk_HXX7ckTuE9mJyEhPJTxlNJI_X0CBOqYwYTcU6GhBCWMSpeNxEWwCvfZpk2QBNh76GNmhXt4B9jdsXg-984yv_PMfeLvL72n2YAAbb4KeLyoOr3lwNnZ-4IvhP_WHwWe3At8E3c3wTfG7wyAVooyejA759m-OJbmAHbVhdgdn9jtvofnR-N7yMxtcXV8OzcVRQIdqIpaVIMltIam1puU3iVNAyJYxqlnNhpUwpKSXNU8ms5NZQSQ2xOdc6ZyQWdBsdLfs2wb_PDLRq6qAwVaVr42egBKMxo1xknTz8VyaEMsk7v4LdfwGCsaoJbqrDXMVE9XtXy7138OC7o4ZCVzbounDwo0UmmWD95OOlc75ZvfZ3Uf2ZFGepSpRMiGpK2-H9v_jX4C_F5plU</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>20348674</pqid></control><display><type>article</type><title>Constraints on the Topology of the Universe from the Wilkinson Microwave Anisotropy Probe First-Year Sky Maps</title><source>EZB Electronic Journals Library</source><creator>Phillips, N. G ; Kogut, A</creator><creatorcontrib>Phillips, N. G ; Kogut, A</creatorcontrib><description>We compute the covariance expected between the spherical harmonic coefficients a sub(lm) of the cosmic microwave temperature anisotropy if the universe had a compact topology. For a fundamental cell size smaller than the distance to the decoupling surface, off-diagonal components carry more information than the diagonal components (the power spectrum). We use a maximum likelihood analysis to compare the Wilkinson Microwave Anisotropy Probe (WMAP) first-year data to models with a cubic topology. The data are compatible with finite flat topologies with fundamental domain L > 1.2 times the distance to the decoupling surface at a 95% confidence level. The WMAP data show reduced power at the quadrupole and octopole, but they do not show the correlations expected for a compact topology and are indistinguishable from infinite models.</description><identifier>ISSN: 0004-637X</identifier><identifier>EISSN: 1538-4357</identifier><identifier>DOI: 10.1086/432861</identifier><identifier>CODEN: ASJOAB</identifier><language>eng</language><publisher>Chicago, IL: IOP Publishing</publisher><subject>Astronomy ; Earth, ocean, space ; Exact sciences and technology</subject><ispartof>The Astrophysical journal, 2006-07, Vol.645 (2), p.820-825</ispartof><rights>2006 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c377t-45d729fc83ffdf6f21573d5043a4b67f88530d83b584f86fe383e0fb6aab40173</citedby><cites>FETCH-LOGICAL-c377t-45d729fc83ffdf6f21573d5043a4b67f88530d83b584f86fe383e0fb6aab40173</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,27924,27925</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=17984749$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Phillips, N. G</creatorcontrib><creatorcontrib>Kogut, A</creatorcontrib><title>Constraints on the Topology of the Universe from the Wilkinson Microwave Anisotropy Probe First-Year Sky Maps</title><title>The Astrophysical journal</title><description>We compute the covariance expected between the spherical harmonic coefficients a sub(lm) of the cosmic microwave temperature anisotropy if the universe had a compact topology. For a fundamental cell size smaller than the distance to the decoupling surface, off-diagonal components carry more information than the diagonal components (the power spectrum). We use a maximum likelihood analysis to compare the Wilkinson Microwave Anisotropy Probe (WMAP) first-year data to models with a cubic topology. The data are compatible with finite flat topologies with fundamental domain L > 1.2 times the distance to the decoupling surface at a 95% confidence level. The WMAP data show reduced power at the quadrupole and octopole, but they do not show the correlations expected for a compact topology and are indistinguishable from infinite models.</description><subject>Astronomy</subject><subject>Earth, ocean, space</subject><subject>Exact sciences and technology</subject><issn>0004-637X</issn><issn>1538-4357</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2006</creationdate><recordtype>article</recordtype><recordid>eNp90V9LwzAQAPAgCs5_nyE-qCBU0yZN0kcZToUNBRX1KaRtotGuqblO2be33WSCgk_HXX7ckTuE9mJyEhPJTxlNJI_X0CBOqYwYTcU6GhBCWMSpeNxEWwCvfZpk2QBNh76GNmhXt4B9jdsXg-984yv_PMfeLvL72n2YAAbb4KeLyoOr3lwNnZ-4IvhP_WHwWe3At8E3c3wTfG7wyAVooyejA759m-OJbmAHbVhdgdn9jtvofnR-N7yMxtcXV8OzcVRQIdqIpaVIMltIam1puU3iVNAyJYxqlnNhpUwpKSXNU8ms5NZQSQ2xOdc6ZyQWdBsdLfs2wb_PDLRq6qAwVaVr42egBKMxo1xknTz8VyaEMsk7v4LdfwGCsaoJbqrDXMVE9XtXy7138OC7o4ZCVzbounDwo0UmmWD95OOlc75ZvfZ3Uf2ZFGepSpRMiGpK2-H9v_jX4C_F5plU</recordid><startdate>20060710</startdate><enddate>20060710</enddate><creator>Phillips, N. G</creator><creator>Kogut, A</creator><general>IOP Publishing</general><general>University of Chicago Press</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7TG</scope><scope>KL.</scope><scope>8FD</scope><scope>H8D</scope><scope>L7M</scope></search><sort><creationdate>20060710</creationdate><title>Constraints on the Topology of the Universe from the Wilkinson Microwave Anisotropy Probe First-Year Sky Maps</title><author>Phillips, N. G ; Kogut, A</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c377t-45d729fc83ffdf6f21573d5043a4b67f88530d83b584f86fe383e0fb6aab40173</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2006</creationdate><topic>Astronomy</topic><topic>Earth, ocean, space</topic><topic>Exact sciences and technology</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Phillips, N. G</creatorcontrib><creatorcontrib>Kogut, A</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Meteorological & Geoastrophysical Abstracts</collection><collection>Meteorological & Geoastrophysical Abstracts - Academic</collection><collection>Technology Research Database</collection><collection>Aerospace Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>The Astrophysical journal</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Phillips, N. G</au><au>Kogut, A</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Constraints on the Topology of the Universe from the Wilkinson Microwave Anisotropy Probe First-Year Sky Maps</atitle><jtitle>The Astrophysical journal</jtitle><date>2006-07-10</date><risdate>2006</risdate><volume>645</volume><issue>2</issue><spage>820</spage><epage>825</epage><pages>820-825</pages><issn>0004-637X</issn><eissn>1538-4357</eissn><coden>ASJOAB</coden><abstract>We compute the covariance expected between the spherical harmonic coefficients a sub(lm) of the cosmic microwave temperature anisotropy if the universe had a compact topology. For a fundamental cell size smaller than the distance to the decoupling surface, off-diagonal components carry more information than the diagonal components (the power spectrum). We use a maximum likelihood analysis to compare the Wilkinson Microwave Anisotropy Probe (WMAP) first-year data to models with a cubic topology. The data are compatible with finite flat topologies with fundamental domain L > 1.2 times the distance to the decoupling surface at a 95% confidence level. The WMAP data show reduced power at the quadrupole and octopole, but they do not show the correlations expected for a compact topology and are indistinguishable from infinite models.</abstract><cop>Chicago, IL</cop><pub>IOP Publishing</pub><doi>10.1086/432861</doi><tpages>6</tpages></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0004-637X |
| ispartof | The Astrophysical journal, 2006-07, Vol.645 (2), p.820-825 |
| issn | 0004-637X 1538-4357 |
| language | eng |
| recordid | cdi_iop_primary_10_1086_432861 |
| source | EZB Electronic Journals Library |
| subjects | Astronomy Earth, ocean, space Exact sciences and technology |
| title | Constraints on the Topology of the Universe from the Wilkinson Microwave Anisotropy Probe First-Year Sky Maps |
| url | http://sfxeu10.hosted.exlibrisgroup.com/loughborough?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-01-06T21%3A44%3A13IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-proquest_iop_p&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=Constraints%20on%20the%20Topology%20of%20the%20Universe%20from%20the%20Wilkinson%20Microwave%20Anisotropy%20Probe%20First-Year%20Sky%20Maps&rft.jtitle=The%20Astrophysical%20journal&rft.au=Phillips,%20N.%20G&rft.date=2006-07-10&rft.volume=645&rft.issue=2&rft.spage=820&rft.epage=825&rft.pages=820-825&rft.issn=0004-637X&rft.eissn=1538-4357&rft.coden=ASJOAB&rft_id=info:doi/10.1086/432861&rft_dat=%3Cproquest_iop_p%3E743143679%3C/proquest_iop_p%3E%3Cgrp_id%3Ecdi_FETCH-LOGICAL-c377t-45d729fc83ffdf6f21573d5043a4b67f88530d83b584f86fe383e0fb6aab40173%3C/grp_id%3E%3Coa%3E%3C/oa%3E%3Curl%3E%3C/url%3E&rft_id=info:oai/&rft_pqid=20348674&rft_id=info:pmid/&rfr_iscdi=true |