A STRICT TEST OF STELLAR EVOLUTION MODELS: THE ABSOLUTE DIMENSIONS OF THE MASSIVE BENCHMARK ECLIPSING BINARY V578 MON
We determine the absolute dimensions of the eclipsing binary V578 Mon, a detached system of two early B-type stars (B0V + B1V, P = 2.40848 days) in the star-forming region NGC 2244 of the Rosette Nebula. We find that our disentangled component spectra for V578 Mon agree well with previous spectral d...
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| Veröffentlicht in: | The Astronomical journal 2014-09, Vol.148 (3), p.1-18 |
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| creator | Garcia, E V Stassun, Keivan G Pavlovski, K HENSBERGE, H CHEW, Y GOMEZ MAQUEO Claret, A |
| description | We determine the absolute dimensions of the eclipsing binary V578 Mon, a detached system of two early B-type stars (B0V + B1V, P = 2.40848 days) in the star-forming region NGC 2244 of the Rosette Nebula. We find that our disentangled component spectra for V578 Mon agree well with previous spectral disentangling from the literature. We compare the absolute dimensions to the rotating models of the Geneva and Utrecht groups and the models of the Granada group. We find that all three sets of models marginally reproduce the absolute dimensions of both stars with a common age within the uncertainty for gravity-effective temperature isochrones. However, there are some apparent age discrepancies for the corresponding mass-radius isochrones. We find the relativistic contribution to the apsidal motion to be small, |
| doi_str_mv | 10.1088/0004-6256/148/3/39 |
| format | Article |
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We find that our disentangled component spectra for V578 Mon agree well with previous spectral disentangling from the literature. We compare the absolute dimensions to the rotating models of the Geneva and Utrecht groups and the models of the Granada group. We find that all three sets of models marginally reproduce the absolute dimensions of both stars with a common age within the uncertainty for gravity-effective temperature isochrones. However, there are some apparent age discrepancies for the corresponding mass-radius isochrones. We find the relativistic contribution to the apsidal motion to be small, <4%. We find that the prediction of log k sub(2,theo) = -2.005 + or - 0.025 of the Granada models fully agrees with our observed log k sub(2).</description><identifier>ISSN: 0004-6256</identifier><identifier>ISSN: 1538-3881</identifier><identifier>EISSN: 1538-3881</identifier><identifier>DOI: 10.1088/0004-6256/148/3/39</identifier><language>eng</language><publisher>United States</publisher><subject>Age ; ASTROPHYSICS, COSMOLOGY AND ASTRONOMY ; Benchmarking ; BENCHMARKS ; COMPARATIVE EVALUATIONS ; Detaching ; ECLIPSE ; Eclipsing binary stars ; FORECASTING ; GRAVITATION ; MASS ; NEBULAE ; ORBITS ; PHOTOMETRY ; RELATIVISTIC RANGE ; Rotating ; SPECTRA ; STAR EVOLUTION ; Star formation ; STARS ; Uncertainty ; VISIBLE RADIATION</subject><ispartof>The Astronomical journal, 2014-09, Vol.148 (3), p.1-18</ispartof><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c385t-71f3cd5837834399ba8701f5e401858bcdd9e9b31244aa897bafed82787b5483</citedby><cites>FETCH-LOGICAL-c385t-71f3cd5837834399ba8701f5e401858bcdd9e9b31244aa897bafed82787b5483</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/22342270$$D View this record in Osti.gov$$Hfree_for_read</backlink></links><search><creatorcontrib>Garcia, E V</creatorcontrib><creatorcontrib>Stassun, Keivan G</creatorcontrib><creatorcontrib>Pavlovski, K</creatorcontrib><creatorcontrib>HENSBERGE, H</creatorcontrib><creatorcontrib>CHEW, Y GOMEZ MAQUEO</creatorcontrib><creatorcontrib>Claret, A</creatorcontrib><title>A STRICT TEST OF STELLAR EVOLUTION MODELS: THE ABSOLUTE DIMENSIONS OF THE MASSIVE BENCHMARK ECLIPSING BINARY V578 MON</title><title>The Astronomical journal</title><description>We determine the absolute dimensions of the eclipsing binary V578 Mon, a detached system of two early B-type stars (B0V + B1V, P = 2.40848 days) in the star-forming region NGC 2244 of the Rosette Nebula. We find that our disentangled component spectra for V578 Mon agree well with previous spectral disentangling from the literature. We compare the absolute dimensions to the rotating models of the Geneva and Utrecht groups and the models of the Granada group. We find that all three sets of models marginally reproduce the absolute dimensions of both stars with a common age within the uncertainty for gravity-effective temperature isochrones. However, there are some apparent age discrepancies for the corresponding mass-radius isochrones. We find the relativistic contribution to the apsidal motion to be small, <4%. We find that the prediction of log k sub(2,theo) = -2.005 + or - 0.025 of the Granada models fully agrees with our observed log k sub(2).</description><subject>Age</subject><subject>ASTROPHYSICS, COSMOLOGY AND ASTRONOMY</subject><subject>Benchmarking</subject><subject>BENCHMARKS</subject><subject>COMPARATIVE EVALUATIONS</subject><subject>Detaching</subject><subject>ECLIPSE</subject><subject>Eclipsing binary stars</subject><subject>FORECASTING</subject><subject>GRAVITATION</subject><subject>MASS</subject><subject>NEBULAE</subject><subject>ORBITS</subject><subject>PHOTOMETRY</subject><subject>RELATIVISTIC RANGE</subject><subject>Rotating</subject><subject>SPECTRA</subject><subject>STAR EVOLUTION</subject><subject>Star formation</subject><subject>STARS</subject><subject>Uncertainty</subject><subject>VISIBLE RADIATION</subject><issn>0004-6256</issn><issn>1538-3881</issn><issn>1538-3881</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2014</creationdate><recordtype>article</recordtype><recordid>eNqNkT1v2zAQhomgBeqm_QOdCGTpopif0jGbrDCxUFkqTNVAJkKiKcSBYyWiPPTfV4KLzp0Od-9z7_Ig9I2SW0oAloQQEcVMxksqYMmXXF2hBZUcIg5AP6DFP-AT-hzCCyGUAhELdE6xqbd5VuNamxpXD9OqiyLdYr2ril91XpV4U93rwtzheq1xujLzWeP7fKNLM8VmfpqjTWpMvtN4pctsvUm3P7DOivynyctHvMrLdPuEdzKBqa78gj52zTH4r3_nNaofdJ2to6J6zLO0iBwHOUYJ7bjbS-AJcMGVahtICO2kF4SChNbt98qrllMmRNOAStqm83tgCSStFMCv0c2ltg_jwQZ3GL17dv3p5N1oGeOCsYRM1PcL9Tb072cfRvt6CM4fj83J9-dgaRwrUJww-B-UCC4kiSeUXVA39CEMvrNvw-G1GX5bSuzszM5K7KzETs4st1zxP7qFfXg</recordid><startdate>20140901</startdate><enddate>20140901</enddate><creator>Garcia, E V</creator><creator>Stassun, Keivan G</creator><creator>Pavlovski, K</creator><creator>HENSBERGE, H</creator><creator>CHEW, Y GOMEZ MAQUEO</creator><creator>Claret, A</creator><scope>AAYXX</scope><scope>CITATION</scope><scope>7TG</scope><scope>KL.</scope><scope>8FD</scope><scope>H8D</scope><scope>L7M</scope><scope>OTOTI</scope></search><sort><creationdate>20140901</creationdate><title>A STRICT TEST OF STELLAR EVOLUTION MODELS: THE ABSOLUTE DIMENSIONS OF THE MASSIVE BENCHMARK ECLIPSING BINARY V578 MON</title><author>Garcia, E V ; Stassun, Keivan G ; Pavlovski, K ; HENSBERGE, H ; CHEW, Y GOMEZ MAQUEO ; Claret, A</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c385t-71f3cd5837834399ba8701f5e401858bcdd9e9b31244aa897bafed82787b5483</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2014</creationdate><topic>Age</topic><topic>ASTROPHYSICS, COSMOLOGY AND ASTRONOMY</topic><topic>Benchmarking</topic><topic>BENCHMARKS</topic><topic>COMPARATIVE EVALUATIONS</topic><topic>Detaching</topic><topic>ECLIPSE</topic><topic>Eclipsing binary stars</topic><topic>FORECASTING</topic><topic>GRAVITATION</topic><topic>MASS</topic><topic>NEBULAE</topic><topic>ORBITS</topic><topic>PHOTOMETRY</topic><topic>RELATIVISTIC RANGE</topic><topic>Rotating</topic><topic>SPECTRA</topic><topic>STAR EVOLUTION</topic><topic>Star formation</topic><topic>STARS</topic><topic>Uncertainty</topic><topic>VISIBLE RADIATION</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Garcia, E V</creatorcontrib><creatorcontrib>Stassun, Keivan G</creatorcontrib><creatorcontrib>Pavlovski, K</creatorcontrib><creatorcontrib>HENSBERGE, H</creatorcontrib><creatorcontrib>CHEW, Y GOMEZ MAQUEO</creatorcontrib><creatorcontrib>Claret, A</creatorcontrib><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><collection>OSTI.GOV</collection><jtitle>The Astronomical journal</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Garcia, E V</au><au>Stassun, Keivan G</au><au>Pavlovski, K</au><au>HENSBERGE, H</au><au>CHEW, Y GOMEZ MAQUEO</au><au>Claret, A</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>A STRICT TEST OF STELLAR EVOLUTION MODELS: THE ABSOLUTE DIMENSIONS OF THE MASSIVE BENCHMARK ECLIPSING BINARY V578 MON</atitle><jtitle>The Astronomical journal</jtitle><date>2014-09-01</date><risdate>2014</risdate><volume>148</volume><issue>3</issue><spage>1</spage><epage>18</epage><pages>1-18</pages><issn>0004-6256</issn><issn>1538-3881</issn><eissn>1538-3881</eissn><abstract>We determine the absolute dimensions of the eclipsing binary V578 Mon, a detached system of two early B-type stars (B0V + B1V, P = 2.40848 days) in the star-forming region NGC 2244 of the Rosette Nebula. We find that our disentangled component spectra for V578 Mon agree well with previous spectral disentangling from the literature. We compare the absolute dimensions to the rotating models of the Geneva and Utrecht groups and the models of the Granada group. We find that all three sets of models marginally reproduce the absolute dimensions of both stars with a common age within the uncertainty for gravity-effective temperature isochrones. However, there are some apparent age discrepancies for the corresponding mass-radius isochrones. We find the relativistic contribution to the apsidal motion to be small, <4%. We find that the prediction of log k sub(2,theo) = -2.005 + or - 0.025 of the Granada models fully agrees with our observed log k sub(2).</abstract><cop>United States</cop><doi>10.1088/0004-6256/148/3/39</doi><tpages>18</tpages><oa>free_for_read</oa></addata></record> |
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| source | IOP Publishing Free Content; Institute of Physics IOPscience extra; EZB-FREE-00999 freely available EZB journals; Alma/SFX Local Collection |
| subjects | Age ASTROPHYSICS, COSMOLOGY AND ASTRONOMY Benchmarking BENCHMARKS COMPARATIVE EVALUATIONS Detaching ECLIPSE Eclipsing binary stars FORECASTING GRAVITATION MASS NEBULAE ORBITS PHOTOMETRY RELATIVISTIC RANGE Rotating SPECTRA STAR EVOLUTION Star formation STARS Uncertainty VISIBLE RADIATION |
| title | A STRICT TEST OF STELLAR EVOLUTION MODELS: THE ABSOLUTE DIMENSIONS OF THE MASSIVE BENCHMARK ECLIPSING BINARY V578 MON |
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