Spin-up and mixing in accreting white dwarfs
It is demonstrated that existing theories of mixing in accreting white dwarfs encounter difficulties when confronted with observations of enrichments in nova ejecta. Arguments are presented, based on the Ekman spin-up process, which suggest that angular momentum transport from the accreted material...
Gespeichert in:
| Veröffentlicht in: | Astrophys. J.; (United States) 1987-07, Vol.318 (1), p.316-325 |
|---|---|
| Hauptverfasser: | , |
| Format: | Artikel |
| Sprache: | eng |
| Schlagworte: | |
| Online-Zugang: | Volltext |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| container_end_page | 325 |
|---|---|
| container_issue | 1 |
| container_start_page | 316 |
| container_title | Astrophys. J.; (United States) |
| container_volume | 318 |
| creator | LIVIO, M TRURAN, J. W |
| description | It is demonstrated that existing theories of mixing in accreting white dwarfs encounter difficulties when confronted with observations of enrichments in nova ejecta. Arguments are presented, based on the Ekman spin-up process, which suggest that angular momentum transport from the accreted material to the white dwarf is more efficient than previously thought. This should lead to matter spreading over the entire white dwarf surface, as well as inward mixing. It is shown that when efficient transfer of angular momentum is taken into account, the gross features of nova outbursts can be reproduced, with the runaway occuring in a mixed layer. Some implications of the results for DQ Her, the hibernation model of novae, recurrent novae, and soft X-ray emission are discussed. 63 references. |
| doi_str_mv | 10.1086/165369 |
| format | Article |
| fullrecord | <record><control><sourceid>pascalfrancis_osti_</sourceid><recordid>TN_cdi_crossref_primary_10_1086_165369</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>7499850</sourcerecordid><originalsourceid>FETCH-LOGICAL-c241t-3b670e58de64c1c0ede53043165918ca49e51f6d02d614ef84d1702bbf477f7d3</originalsourceid><addsrcrecordid>eNo9kE1LAzEYhIMoWKv-hkXEk6t5N99HKfUDCh5U8LakbxIbadMlWan-e7eseBoGnhmGIeQc6A1QLW9BCibNAZmAYLrmTKhDMqGU8loy9X5MTkr53NvGmAm5fuliqr-6yiZXbeJ3TB9VTJVFzL7fm90q9r5yO5tDOSVHwa6LP_vTKXm7n7_OHuvF88PT7G5RY8Ohr9lSKuqFdl5yBKTeecEoZ8MwAxotN15AkI42TgL3QXMHijbLZeBKBeXYlFyMvdvSx7bgsABXuE3JY98OEc0BBuhqhDBvS8k-tF2OG5t_WqDt_oh2PGIAL0ewswXtOmSbMJZ_WnFjtKDsFwe2Wgw</addsrcrecordid><sourcetype>Open Access Repository</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype></control><display><type>article</type><title>Spin-up and mixing in accreting white dwarfs</title><source>Alma/SFX Local Collection</source><creator>LIVIO, M ; TRURAN, J. W</creator><creatorcontrib>LIVIO, M ; TRURAN, J. W ; Illinois Univ., Urbana</creatorcontrib><description>It is demonstrated that existing theories of mixing in accreting white dwarfs encounter difficulties when confronted with observations of enrichments in nova ejecta. Arguments are presented, based on the Ekman spin-up process, which suggest that angular momentum transport from the accreted material to the white dwarf is more efficient than previously thought. This should lead to matter spreading over the entire white dwarf surface, as well as inward mixing. It is shown that when efficient transfer of angular momentum is taken into account, the gross features of nova outbursts can be reproduced, with the runaway occuring in a mixed layer. Some implications of the results for DQ Her, the hibernation model of novae, recurrent novae, and soft X-ray emission are discussed. 63 references.</description><identifier>ISSN: 0004-637X</identifier><identifier>EISSN: 1538-4357</identifier><identifier>DOI: 10.1086/165369</identifier><identifier>CODEN: ASJOAB</identifier><language>eng</language><publisher>Chicago, IL: University of Chicago Press</publisher><subject>640102 - Astrophysics & Cosmology- Stars & Quasi-Stellar, Radio & X-Ray Sources ; ANGULAR MOMENTUM ; ANGULAR VELOCITY ; Astronomy ; CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS ; DWARF STARS ; Earth, ocean, space ; ELECTROMAGNETIC RADIATION ; ERUPTIVE VARIABLE STARS ; Exact sciences and technology ; Faint blue stars (including blue stragglers), white dwarfs, degenerate stars, nuclei of planetary nebulae ; IONIZING RADIATIONS ; MASS TRANSFER ; MATHEMATICAL MODELS ; MIXING ; MOMENTUM TRANSFER ; MOTION ; Normal stars (by class): general or individual ; NOVAE ; RADIATIONS ; ROTATION ; STAR ACCRETION ; STAR EVOLUTION ; STAR MODELS ; STARS ; VARIABLE STARS ; VELOCITY ; WHITE DWARF STARS ; X RADIATION</subject><ispartof>Astrophys. J.; (United States), 1987-07, Vol.318 (1), p.316-325</ispartof><rights>1988 INIST-CNRS</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c241t-3b670e58de64c1c0ede53043165918ca49e51f6d02d614ef84d1702bbf477f7d3</citedby></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,776,780,881,27901,27902</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=7499850$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://www.osti.gov/biblio/6148411$$D View this record in Osti.gov$$Hfree_for_read</backlink></links><search><creatorcontrib>LIVIO, M</creatorcontrib><creatorcontrib>TRURAN, J. W</creatorcontrib><creatorcontrib>Illinois Univ., Urbana</creatorcontrib><title>Spin-up and mixing in accreting white dwarfs</title><title>Astrophys. J.; (United States)</title><description>It is demonstrated that existing theories of mixing in accreting white dwarfs encounter difficulties when confronted with observations of enrichments in nova ejecta. Arguments are presented, based on the Ekman spin-up process, which suggest that angular momentum transport from the accreted material to the white dwarf is more efficient than previously thought. This should lead to matter spreading over the entire white dwarf surface, as well as inward mixing. It is shown that when efficient transfer of angular momentum is taken into account, the gross features of nova outbursts can be reproduced, with the runaway occuring in a mixed layer. Some implications of the results for DQ Her, the hibernation model of novae, recurrent novae, and soft X-ray emission are discussed. 63 references.</description><subject>640102 - Astrophysics & Cosmology- Stars & Quasi-Stellar, Radio & X-Ray Sources</subject><subject>ANGULAR MOMENTUM</subject><subject>ANGULAR VELOCITY</subject><subject>Astronomy</subject><subject>CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS</subject><subject>DWARF STARS</subject><subject>Earth, ocean, space</subject><subject>ELECTROMAGNETIC RADIATION</subject><subject>ERUPTIVE VARIABLE STARS</subject><subject>Exact sciences and technology</subject><subject>Faint blue stars (including blue stragglers), white dwarfs, degenerate stars, nuclei of planetary nebulae</subject><subject>IONIZING RADIATIONS</subject><subject>MASS TRANSFER</subject><subject>MATHEMATICAL MODELS</subject><subject>MIXING</subject><subject>MOMENTUM TRANSFER</subject><subject>MOTION</subject><subject>Normal stars (by class): general or individual</subject><subject>NOVAE</subject><subject>RADIATIONS</subject><subject>ROTATION</subject><subject>STAR ACCRETION</subject><subject>STAR EVOLUTION</subject><subject>STAR MODELS</subject><subject>STARS</subject><subject>VARIABLE STARS</subject><subject>VELOCITY</subject><subject>WHITE DWARF STARS</subject><subject>X RADIATION</subject><issn>0004-637X</issn><issn>1538-4357</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1987</creationdate><recordtype>article</recordtype><recordid>eNo9kE1LAzEYhIMoWKv-hkXEk6t5N99HKfUDCh5U8LakbxIbadMlWan-e7eseBoGnhmGIeQc6A1QLW9BCibNAZmAYLrmTKhDMqGU8loy9X5MTkr53NvGmAm5fuliqr-6yiZXbeJ3TB9VTJVFzL7fm90q9r5yO5tDOSVHwa6LP_vTKXm7n7_OHuvF88PT7G5RY8Ohr9lSKuqFdl5yBKTeecEoZ8MwAxotN15AkI42TgL3QXMHijbLZeBKBeXYlFyMvdvSx7bgsABXuE3JY98OEc0BBuhqhDBvS8k-tF2OG5t_WqDt_oh2PGIAL0ewswXtOmSbMJZ_WnFjtKDsFwe2Wgw</recordid><startdate>19870701</startdate><enddate>19870701</enddate><creator>LIVIO, M</creator><creator>TRURAN, J. W</creator><general>University of Chicago Press</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>OTOTI</scope></search><sort><creationdate>19870701</creationdate><title>Spin-up and mixing in accreting white dwarfs</title><author>LIVIO, M ; TRURAN, J. W</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c241t-3b670e58de64c1c0ede53043165918ca49e51f6d02d614ef84d1702bbf477f7d3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1987</creationdate><topic>640102 - Astrophysics & Cosmology- Stars & Quasi-Stellar, Radio & X-Ray Sources</topic><topic>ANGULAR MOMENTUM</topic><topic>ANGULAR VELOCITY</topic><topic>Astronomy</topic><topic>CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS</topic><topic>DWARF STARS</topic><topic>Earth, ocean, space</topic><topic>ELECTROMAGNETIC RADIATION</topic><topic>ERUPTIVE VARIABLE STARS</topic><topic>Exact sciences and technology</topic><topic>Faint blue stars (including blue stragglers), white dwarfs, degenerate stars, nuclei of planetary nebulae</topic><topic>IONIZING RADIATIONS</topic><topic>MASS TRANSFER</topic><topic>MATHEMATICAL MODELS</topic><topic>MIXING</topic><topic>MOMENTUM TRANSFER</topic><topic>MOTION</topic><topic>Normal stars (by class): general or individual</topic><topic>NOVAE</topic><topic>RADIATIONS</topic><topic>ROTATION</topic><topic>STAR ACCRETION</topic><topic>STAR EVOLUTION</topic><topic>STAR MODELS</topic><topic>STARS</topic><topic>VARIABLE STARS</topic><topic>VELOCITY</topic><topic>WHITE DWARF STARS</topic><topic>X RADIATION</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>LIVIO, M</creatorcontrib><creatorcontrib>TRURAN, J. W</creatorcontrib><creatorcontrib>Illinois Univ., Urbana</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>OSTI.GOV</collection><jtitle>Astrophys. J.; (United States)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>LIVIO, M</au><au>TRURAN, J. W</au><aucorp>Illinois Univ., Urbana</aucorp><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Spin-up and mixing in accreting white dwarfs</atitle><jtitle>Astrophys. J.; (United States)</jtitle><date>1987-07-01</date><risdate>1987</risdate><volume>318</volume><issue>1</issue><spage>316</spage><epage>325</epage><pages>316-325</pages><issn>0004-637X</issn><eissn>1538-4357</eissn><coden>ASJOAB</coden><abstract>It is demonstrated that existing theories of mixing in accreting white dwarfs encounter difficulties when confronted with observations of enrichments in nova ejecta. Arguments are presented, based on the Ekman spin-up process, which suggest that angular momentum transport from the accreted material to the white dwarf is more efficient than previously thought. This should lead to matter spreading over the entire white dwarf surface, as well as inward mixing. It is shown that when efficient transfer of angular momentum is taken into account, the gross features of nova outbursts can be reproduced, with the runaway occuring in a mixed layer. Some implications of the results for DQ Her, the hibernation model of novae, recurrent novae, and soft X-ray emission are discussed. 63 references.</abstract><cop>Chicago, IL</cop><pub>University of Chicago Press</pub><doi>10.1086/165369</doi><tpages>10</tpages><oa>free_for_read</oa></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0004-637X |
| ispartof | Astrophys. J.; (United States), 1987-07, Vol.318 (1), p.316-325 |
| issn | 0004-637X 1538-4357 |
| language | eng |
| recordid | cdi_crossref_primary_10_1086_165369 |
| source | Alma/SFX Local Collection |
| subjects | 640102 - Astrophysics & Cosmology- Stars & Quasi-Stellar, Radio & X-Ray Sources ANGULAR MOMENTUM ANGULAR VELOCITY Astronomy CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS DWARF STARS Earth, ocean, space ELECTROMAGNETIC RADIATION ERUPTIVE VARIABLE STARS Exact sciences and technology Faint blue stars (including blue stragglers), white dwarfs, degenerate stars, nuclei of planetary nebulae IONIZING RADIATIONS MASS TRANSFER MATHEMATICAL MODELS MIXING MOMENTUM TRANSFER MOTION Normal stars (by class): general or individual NOVAE RADIATIONS ROTATION STAR ACCRETION STAR EVOLUTION STAR MODELS STARS VARIABLE STARS VELOCITY WHITE DWARF STARS X RADIATION |
| title | Spin-up and mixing in accreting white dwarfs |
| url | https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-02-08T15%3A31%3A49IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-pascalfrancis_osti_&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=Spin-up%20and%20mixing%20in%20accreting%20white%20dwarfs&rft.jtitle=Astrophys.%20J.;%20(United%20States)&rft.au=LIVIO,%20M&rft.aucorp=Illinois%20Univ.,%20Urbana&rft.date=1987-07-01&rft.volume=318&rft.issue=1&rft.spage=316&rft.epage=325&rft.pages=316-325&rft.issn=0004-637X&rft.eissn=1538-4357&rft.coden=ASJOAB&rft_id=info:doi/10.1086/165369&rft_dat=%3Cpascalfrancis_osti_%3E7499850%3C/pascalfrancis_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 |