SV CENTAURI — A TRULY CONTACT BINARY

A light-curve-synthesis program which implements interpolation in a grid of nongray model atmospheres has been used to determine the geometrical elements of SV Cen by simultaneous differentialcorrection fitting of the three-color light curves obtained in UBV by Irwin and Landolt (1972). Solutions wi...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Veröffentlicht in:	Publ. Astron. Soc. Pac.; (United States) 1976-06, Vol.88 (523), p.244-250
1. Verfasser:	RUCINSKI, S. M.
Format:	Artikel
Sprache:	eng
Schlagworte:	640102 - Astrophysics & Cosmology- Stars & Quasi-Stellar, Radio & X-Ray Sources Astrophysics Atmospheric models BINARY STARS CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS COMPUTER CODES CORRECTIONS Eclipses EMISSION SPECTRA Equipotentials GEOMETRY Infrared spectroscopy Interpolation Light curves MASS Mass ratio Mass spectroscopy Mathematical minima MATHEMATICS SPECTRA STAR EVOLUTION STARS
Online-Zugang:	Volltext
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

container_end_page	250
container_issue	523
container_start_page	244
container_title	Publ. Astron. Soc. Pac.; (United States)
container_volume	88
creator	RUCINSKI, S. M.
description	A light-curve-synthesis program which implements interpolation in a grid of nongray model atmospheres has been used to determine the geometrical elements of SV Cen by simultaneous differentialcorrection fitting of the three-color light curves obtained in UBV by Irwin and Landolt (1972). Solutions with the mass ratio fixed at its spectroscopie value of 0.84 reveal an extraordinarily high degree of contact between the components (fill-out parameter ƒ = 0.10 ± 0.02) and a rather high temperature of the less massive component relative to the more massive component. The large local temperature excess of the secondary star, X = ∆T/T = 0.78 ± 0.03 (which results in temperatures 28,000° and 17,000°K, for the less massive and more massive compounds, respectively) is difficult to understand in the framework of the contact model but might be related to the thermal -time-scale mass-transfer stage of the evolution of SV Cen.
doi_str_mv	10.1086/129937
format	Article
fullrecord	<record><control><sourceid>jstor_osti_</sourceid><recordid>TN_cdi_jstor_primary_40675878</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><jstor_id>40675878</jstor_id><sourcerecordid>40675878</sourcerecordid><originalsourceid>FETCH-LOGICAL-j134t-115b463d68d2ae2d07d4b26d7d4abc5f798574efb5c9b5d0a360805385ead7983</originalsourceid><addsrcrecordid>eNotjs1KxDAYRYMoWEd9AyG4cFf98p8uaxm1UGagtsKsSpqk2KJTabpxNw_hE_okFsbVgXsPl4vQNYF7Alo-EJokTJ2giAimY6YVO0URAPBYUg3n6CKEAYAQTSBCd69vOFtvqrQuc_x7-MEprsq62OFsu4RZhR_zTVruLtFZZz6Cv_rnCtVP6yp7iYvtc56lRTwQxueYENFyyZzUjhpPHSjHWyrdAtNa0alEC8V91wqbtMKBYRI0LDeFN24p2QrdHnfHMPdNsP3s7bsd93tv50YxQTVXi3RzlIYwj1PzNfWfZvpuOEgltNLsD2ryReY</addsrcrecordid><sourcetype>Open Access Repository</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype></control><display><type>article</type><title>SV CENTAURI — A TRULY CONTACT BINARY</title><source>Jstor Complete Legacy</source><source>IOP Publishing Journals</source><source>Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals</source><source>Institute of Physics (IOP) Journals - HEAL-Link</source><source>Alma/SFX Local Collection</source><creator>RUCINSKI, S. M.</creator><creatorcontrib>RUCINSKI, S. M. ; Dominion Astrophysical Observatory, Victoria, British Columbia</creatorcontrib><description>A light-curve-synthesis program which implements interpolation in a grid of nongray model atmospheres has been used to determine the geometrical elements of SV Cen by simultaneous differentialcorrection fitting of the three-color light curves obtained in UBV by Irwin and Landolt (1972). Solutions with the mass ratio fixed at its spectroscopie value of 0.84 reveal an extraordinarily high degree of contact between the components (fill-out parameter ƒ = 0.10 ± 0.02) and a rather high temperature of the less massive component relative to the more massive component. The large local temperature excess of the secondary star, X = ∆T/T = 0.78 ± 0.03 (which results in temperatures 28,000° and 17,000°K, for the less massive and more massive compounds, respectively) is difficult to understand in the framework of the contact model but might be related to the thermal -time-scale mass-transfer stage of the evolution of SV Cen.</description><identifier>ISSN: 0004-6280</identifier><identifier>EISSN: 1538-3873</identifier><identifier>DOI: 10.1086/129937</identifier><language>eng</language><publisher>United States: The Astronomical Society of the Pacific</publisher><subject>640102 - Astrophysics & Cosmology- Stars & Quasi-Stellar, Radio & X-Ray Sources ; Astrophysics ; Atmospheric models ; BINARY STARS ; CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS ; COMPUTER CODES ; CORRECTIONS ; Eclipses ; EMISSION SPECTRA ; Equipotentials ; GEOMETRY ; Infrared spectroscopy ; Interpolation ; Light curves ; MASS ; Mass ratio ; Mass spectroscopy ; Mathematical minima ; MATHEMATICS ; SPECTRA ; STAR EVOLUTION ; STARS</subject><ispartof>Publ. Astron. Soc. Pac.; (United States), 1976-06, Vol.88 (523), p.244-250</ispartof><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://www.jstor.org/stable/pdf/40675878$$EPDF$$P50$$Gjstor$$H</linktopdf><linktohtml>$$Uhttps://www.jstor.org/stable/40675878$$EHTML$$P50$$Gjstor$$H</linktohtml><link.rule.ids>314,776,780,799,881,27903,27904,57995,58228</link.rule.ids><backlink>$$Uhttps://www.osti.gov/biblio/7352847$$D View this record in Osti.gov$$Hfree_for_read</backlink></links><search><creatorcontrib>RUCINSKI, S. M.</creatorcontrib><creatorcontrib>Dominion Astrophysical Observatory, Victoria, British Columbia</creatorcontrib><title>SV CENTAURI — A TRULY CONTACT BINARY</title><title>Publ. Astron. Soc. Pac.; (United States)</title><description>A light-curve-synthesis program which implements interpolation in a grid of nongray model atmospheres has been used to determine the geometrical elements of SV Cen by simultaneous differentialcorrection fitting of the three-color light curves obtained in UBV by Irwin and Landolt (1972). Solutions with the mass ratio fixed at its spectroscopie value of 0.84 reveal an extraordinarily high degree of contact between the components (fill-out parameter ƒ = 0.10 ± 0.02) and a rather high temperature of the less massive component relative to the more massive component. The large local temperature excess of the secondary star, X = ∆T/T = 0.78 ± 0.03 (which results in temperatures 28,000° and 17,000°K, for the less massive and more massive compounds, respectively) is difficult to understand in the framework of the contact model but might be related to the thermal -time-scale mass-transfer stage of the evolution of SV Cen.</description><subject>640102 - Astrophysics & Cosmology- Stars & Quasi-Stellar, Radio & X-Ray Sources</subject><subject>Astrophysics</subject><subject>Atmospheric models</subject><subject>BINARY STARS</subject><subject>CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS</subject><subject>COMPUTER CODES</subject><subject>CORRECTIONS</subject><subject>Eclipses</subject><subject>EMISSION SPECTRA</subject><subject>Equipotentials</subject><subject>GEOMETRY</subject><subject>Infrared spectroscopy</subject><subject>Interpolation</subject><subject>Light curves</subject><subject>MASS</subject><subject>Mass ratio</subject><subject>Mass spectroscopy</subject><subject>Mathematical minima</subject><subject>MATHEMATICS</subject><subject>SPECTRA</subject><subject>STAR EVOLUTION</subject><subject>STARS</subject><issn>0004-6280</issn><issn>1538-3873</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1976</creationdate><recordtype>article</recordtype><recordid>eNotjs1KxDAYRYMoWEd9AyG4cFf98p8uaxm1UGagtsKsSpqk2KJTabpxNw_hE_okFsbVgXsPl4vQNYF7Alo-EJokTJ2giAimY6YVO0URAPBYUg3n6CKEAYAQTSBCd69vOFtvqrQuc_x7-MEprsq62OFsu4RZhR_zTVruLtFZZz6Cv_rnCtVP6yp7iYvtc56lRTwQxueYENFyyZzUjhpPHSjHWyrdAtNa0alEC8V91wqbtMKBYRI0LDeFN24p2QrdHnfHMPdNsP3s7bsd93tv50YxQTVXi3RzlIYwj1PzNfWfZvpuOEgltNLsD2ryReY</recordid><startdate>19760601</startdate><enddate>19760601</enddate><creator>RUCINSKI, S. M.</creator><general>The Astronomical Society of the Pacific</general><scope>OTOTI</scope></search><sort><creationdate>19760601</creationdate><title>SV CENTAURI — A TRULY CONTACT BINARY</title><author>RUCINSKI, S. M.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-j134t-115b463d68d2ae2d07d4b26d7d4abc5f798574efb5c9b5d0a360805385ead7983</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1976</creationdate><topic>640102 - Astrophysics & Cosmology- Stars & Quasi-Stellar, Radio & X-Ray Sources</topic><topic>Astrophysics</topic><topic>Atmospheric models</topic><topic>BINARY STARS</topic><topic>CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS</topic><topic>COMPUTER CODES</topic><topic>CORRECTIONS</topic><topic>Eclipses</topic><topic>EMISSION SPECTRA</topic><topic>Equipotentials</topic><topic>GEOMETRY</topic><topic>Infrared spectroscopy</topic><topic>Interpolation</topic><topic>Light curves</topic><topic>MASS</topic><topic>Mass ratio</topic><topic>Mass spectroscopy</topic><topic>Mathematical minima</topic><topic>MATHEMATICS</topic><topic>SPECTRA</topic><topic>STAR EVOLUTION</topic><topic>STARS</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>RUCINSKI, S. M.</creatorcontrib><creatorcontrib>Dominion Astrophysical Observatory, Victoria, British Columbia</creatorcontrib><collection>OSTI.GOV</collection><jtitle>Publ. Astron. Soc. Pac.; (United States)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>RUCINSKI, S. M.</au><aucorp>Dominion Astrophysical Observatory, Victoria, British Columbia</aucorp><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>SV CENTAURI — A TRULY CONTACT BINARY</atitle><jtitle>Publ. Astron. Soc. Pac.; (United States)</jtitle><date>1976-06-01</date><risdate>1976</risdate><volume>88</volume><issue>523</issue><spage>244</spage><epage>250</epage><pages>244-250</pages><issn>0004-6280</issn><eissn>1538-3873</eissn><abstract>A light-curve-synthesis program which implements interpolation in a grid of nongray model atmospheres has been used to determine the geometrical elements of SV Cen by simultaneous differentialcorrection fitting of the three-color light curves obtained in UBV by Irwin and Landolt (1972). Solutions with the mass ratio fixed at its spectroscopie value of 0.84 reveal an extraordinarily high degree of contact between the components (fill-out parameter ƒ = 0.10 ± 0.02) and a rather high temperature of the less massive component relative to the more massive component. The large local temperature excess of the secondary star, X = ∆T/T = 0.78 ± 0.03 (which results in temperatures 28,000° and 17,000°K, for the less massive and more massive compounds, respectively) is difficult to understand in the framework of the contact model but might be related to the thermal -time-scale mass-transfer stage of the evolution of SV Cen.</abstract><cop>United States</cop><pub>The Astronomical Society of the Pacific</pub><doi>10.1086/129937</doi><tpages>7</tpages></addata></record>
fulltext	fulltext
identifier	ISSN: 0004-6280
ispartof	Publ. Astron. Soc. Pac.; (United States), 1976-06, Vol.88 (523), p.244-250
issn	0004-6280 1538-3873
language	eng
recordid	cdi_jstor_primary_40675878
source	Jstor Complete Legacy; IOP Publishing Journals; Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals; Institute of Physics (IOP) Journals - HEAL-Link; Alma/SFX Local Collection
subjects	640102 - Astrophysics & Cosmology- Stars & Quasi-Stellar, Radio & X-Ray Sources Astrophysics Atmospheric models BINARY STARS CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS COMPUTER CODES CORRECTIONS Eclipses EMISSION SPECTRA Equipotentials GEOMETRY Infrared spectroscopy Interpolation Light curves MASS Mass ratio Mass spectroscopy Mathematical minima MATHEMATICS SPECTRA STAR EVOLUTION STARS
title	SV CENTAURI — A TRULY CONTACT BINARY
url	https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-01-28T01%3A16%3A22IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-jstor_osti_&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=SV%20CENTAURI%20%E2%80%94%20A%20TRULY%20CONTACT%20BINARY&rft.jtitle=Publ.%20Astron.%20Soc.%20Pac.;%20(United%20States)&rft.au=RUCINSKI,%20S.%20M.&rft.aucorp=Dominion%20Astrophysical%20Observatory,%20Victoria,%20British%20Columbia&rft.date=1976-06-01&rft.volume=88&rft.issue=523&rft.spage=244&rft.epage=250&rft.pages=244-250&rft.issn=0004-6280&rft.eissn=1538-3873&rft_id=info:doi/10.1086/129937&rft_dat=%3Cjstor_osti_%3E40675878%3C/jstor_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/&rft_jstor_id=40675878&rfr_iscdi=true