Constructing realistic Szekeres models from initial and final data
The Szekeres family of inhomogeneous solutions, which are defined by six arbitrary metric functions, offers a wide range of possibilities for modelling cosmic structure. Here we present a model construction procedure for the quasispherical case using given data at initial and final times. Of the six...
Gespeichert in:
| Veröffentlicht in: | Journal of cosmology and astroparticle physics 2012-12, Vol.2012 (12), p.1-1 |
|---|---|
| Hauptverfasser: | , |
| Format: | Artikel |
| Sprache: | eng |
| Schlagworte: | |
| Online-Zugang: | Volltext |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| container_end_page | 1 |
|---|---|
| container_issue | 12 |
| container_start_page | 1 |
| container_title | Journal of cosmology and astroparticle physics |
| container_volume | 2012 |
| creator | Walters, Anthony Hellaby, Charles |
| description | The Szekeres family of inhomogeneous solutions, which are defined by six arbitrary metric functions, offers a wide range of possibilities for modelling cosmic structure. Here we present a model construction procedure for the quasispherical case using given data at initial and final times. Of the six arbitrary metric functions, the three which are common to both Szekeres and Lemaître-Tolman models are determined by the model construction procedure of Krasinski and Hellaby. For the remaining three functions, which are unique to Szekeres models, we derive exact analytic expressions in terms of more physically intuitive quantities — density profiles and dipole orientation angles. Using MATLAB, we implement the model construction procedure and simulate the time evolution. |
| doi_str_mv | 10.1088/1475-7516/2012/12/001 |
| format | Article |
| fullrecord | <record><control><sourceid>crossref_osti_</sourceid><recordid>TN_cdi_osti_scitechconnect_22279892</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>10_1088_1475_7516_2012_12_001</sourcerecordid><originalsourceid>FETCH-LOGICAL-c281t-345998036e241714b37b0e18cf3ef61cab525acd0e664a18ce1c6e445be3a6993</originalsourceid><addsrcrecordid>eNpNkE9LxDAUxIMouK5-BCHguTb_mx510VVY8KCeQ5q-arRNJYkH_fSmrIgwMMMwPB4_hM4puaRE65qKRlaNpKpmhLK6iBB6gFZ__eG_fIxOUnojhCnO9Qpdb-aQcvx02YcXHMGOPmXv8OM3vEOEhKe5hzHhIc4T9sFnb0dsQ48HH0rqbban6GiwY4KzX1-j59ubp81dtXvY3m-udpVjmuaKC9m2mnAFTNCGio43HQGq3cBhUNTZTjJpXU9AKWFLD9QpEEJ2wK1qW75GF_u7c_nQJOczuFc3hwAuG8ZY0-qWlZXcr1ycU4owmI_oJxu_DCVmwWUWFGZBYRZcpqjg4j9fTFz7</addsrcrecordid><sourcetype>Open Access Repository</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype></control><display><type>article</type><title>Constructing realistic Szekeres models from initial and final data</title><source>Institute of Physics Journals</source><creator>Walters, Anthony ; Hellaby, Charles</creator><creatorcontrib>Walters, Anthony ; Hellaby, Charles</creatorcontrib><description>The Szekeres family of inhomogeneous solutions, which are defined by six arbitrary metric functions, offers a wide range of possibilities for modelling cosmic structure. Here we present a model construction procedure for the quasispherical case using given data at initial and final times. Of the six arbitrary metric functions, the three which are common to both Szekeres and Lemaître-Tolman models are determined by the model construction procedure of Krasinski and Hellaby. For the remaining three functions, which are unique to Szekeres models, we derive exact analytic expressions in terms of more physically intuitive quantities — density profiles and dipole orientation angles. Using MATLAB, we implement the model construction procedure and simulate the time evolution.</description><identifier>ISSN: 1475-7516</identifier><identifier>EISSN: 1475-7516</identifier><identifier>DOI: 10.1088/1475-7516/2012/12/001</identifier><language>eng</language><publisher>United States</publisher><subject>ASTROPHYSICS, COSMOLOGY AND ASTRONOMY ; COMPUTERIZED SIMULATION ; COSMOLOGY ; DENSITY ; DIPOLES ; EVOLUTION ; M CODES ; MATHEMATICAL SOLUTIONS ; METRICS ; ORIENTATION</subject><ispartof>Journal of cosmology and astroparticle physics, 2012-12, Vol.2012 (12), p.1-1</ispartof><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c281t-345998036e241714b37b0e18cf3ef61cab525acd0e664a18ce1c6e445be3a6993</citedby><cites>FETCH-LOGICAL-c281t-345998036e241714b37b0e18cf3ef61cab525acd0e664a18ce1c6e445be3a6993</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>230,314,780,784,885,27924,27925</link.rule.ids><backlink>$$Uhttps://www.osti.gov/biblio/22279892$$D View this record in Osti.gov$$Hfree_for_read</backlink></links><search><creatorcontrib>Walters, Anthony</creatorcontrib><creatorcontrib>Hellaby, Charles</creatorcontrib><title>Constructing realistic Szekeres models from initial and final data</title><title>Journal of cosmology and astroparticle physics</title><description>The Szekeres family of inhomogeneous solutions, which are defined by six arbitrary metric functions, offers a wide range of possibilities for modelling cosmic structure. Here we present a model construction procedure for the quasispherical case using given data at initial and final times. Of the six arbitrary metric functions, the three which are common to both Szekeres and Lemaître-Tolman models are determined by the model construction procedure of Krasinski and Hellaby. For the remaining three functions, which are unique to Szekeres models, we derive exact analytic expressions in terms of more physically intuitive quantities — density profiles and dipole orientation angles. Using MATLAB, we implement the model construction procedure and simulate the time evolution.</description><subject>ASTROPHYSICS, COSMOLOGY AND ASTRONOMY</subject><subject>COMPUTERIZED SIMULATION</subject><subject>COSMOLOGY</subject><subject>DENSITY</subject><subject>DIPOLES</subject><subject>EVOLUTION</subject><subject>M CODES</subject><subject>MATHEMATICAL SOLUTIONS</subject><subject>METRICS</subject><subject>ORIENTATION</subject><issn>1475-7516</issn><issn>1475-7516</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2012</creationdate><recordtype>article</recordtype><recordid>eNpNkE9LxDAUxIMouK5-BCHguTb_mx510VVY8KCeQ5q-arRNJYkH_fSmrIgwMMMwPB4_hM4puaRE65qKRlaNpKpmhLK6iBB6gFZ__eG_fIxOUnojhCnO9Qpdb-aQcvx02YcXHMGOPmXv8OM3vEOEhKe5hzHhIc4T9sFnb0dsQ48HH0rqbban6GiwY4KzX1-j59ubp81dtXvY3m-udpVjmuaKC9m2mnAFTNCGio43HQGq3cBhUNTZTjJpXU9AKWFLD9QpEEJ2wK1qW75GF_u7c_nQJOczuFc3hwAuG8ZY0-qWlZXcr1ycU4owmI_oJxu_DCVmwWUWFGZBYRZcpqjg4j9fTFz7</recordid><startdate>20121201</startdate><enddate>20121201</enddate><creator>Walters, Anthony</creator><creator>Hellaby, Charles</creator><scope>AAYXX</scope><scope>CITATION</scope><scope>OTOTI</scope></search><sort><creationdate>20121201</creationdate><title>Constructing realistic Szekeres models from initial and final data</title><author>Walters, Anthony ; Hellaby, Charles</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c281t-345998036e241714b37b0e18cf3ef61cab525acd0e664a18ce1c6e445be3a6993</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2012</creationdate><topic>ASTROPHYSICS, COSMOLOGY AND ASTRONOMY</topic><topic>COMPUTERIZED SIMULATION</topic><topic>COSMOLOGY</topic><topic>DENSITY</topic><topic>DIPOLES</topic><topic>EVOLUTION</topic><topic>M CODES</topic><topic>MATHEMATICAL SOLUTIONS</topic><topic>METRICS</topic><topic>ORIENTATION</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Walters, Anthony</creatorcontrib><creatorcontrib>Hellaby, Charles</creatorcontrib><collection>CrossRef</collection><collection>OSTI.GOV</collection><jtitle>Journal of cosmology and astroparticle physics</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Walters, Anthony</au><au>Hellaby, Charles</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Constructing realistic Szekeres models from initial and final data</atitle><jtitle>Journal of cosmology and astroparticle physics</jtitle><date>2012-12-01</date><risdate>2012</risdate><volume>2012</volume><issue>12</issue><spage>1</spage><epage>1</epage><pages>1-1</pages><issn>1475-7516</issn><eissn>1475-7516</eissn><abstract>The Szekeres family of inhomogeneous solutions, which are defined by six arbitrary metric functions, offers a wide range of possibilities for modelling cosmic structure. Here we present a model construction procedure for the quasispherical case using given data at initial and final times. Of the six arbitrary metric functions, the three which are common to both Szekeres and Lemaître-Tolman models are determined by the model construction procedure of Krasinski and Hellaby. For the remaining three functions, which are unique to Szekeres models, we derive exact analytic expressions in terms of more physically intuitive quantities — density profiles and dipole orientation angles. Using MATLAB, we implement the model construction procedure and simulate the time evolution.</abstract><cop>United States</cop><doi>10.1088/1475-7516/2012/12/001</doi><tpages>1</tpages></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 1475-7516 |
| ispartof | Journal of cosmology and astroparticle physics, 2012-12, Vol.2012 (12), p.1-1 |
| issn | 1475-7516 1475-7516 |
| language | eng |
| recordid | cdi_osti_scitechconnect_22279892 |
| source | Institute of Physics Journals |
| subjects | ASTROPHYSICS, COSMOLOGY AND ASTRONOMY COMPUTERIZED SIMULATION COSMOLOGY DENSITY DIPOLES EVOLUTION M CODES MATHEMATICAL SOLUTIONS METRICS ORIENTATION |
| title | Constructing realistic Szekeres models from initial and final data |
| url | https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-01-02T20%3A01%3A32IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-crossref_osti_&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=Constructing%20realistic%20Szekeres%20models%20from%20initial%20and%20final%20data&rft.jtitle=Journal%20of%20cosmology%20and%20astroparticle%20physics&rft.au=Walters,%20Anthony&rft.date=2012-12-01&rft.volume=2012&rft.issue=12&rft.spage=1&rft.epage=1&rft.pages=1-1&rft.issn=1475-7516&rft.eissn=1475-7516&rft_id=info:doi/10.1088/1475-7516/2012/12/001&rft_dat=%3Ccrossref_osti_%3E10_1088_1475_7516_2012_12_001%3C/crossref_osti_%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_id=info:pmid/&rfr_iscdi=true |