Photometric and polarimetric variability and mass-loss rate of the massive binary Wolf-Rayet star HDE 311884 (WN6+O5: V)
Photometric and polarimetric monitoring of the Wolf-Rayet (W-R) + O-type binary system HDE 311884 = WR 47 over many orbital cycles shows the clear effects of phase-dependent electron scattering of O-star light as the orbiting O companion shines through varying column density of W-R stellar wind mate...
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| Veröffentlicht in: | The Astrophysical journal 1990-02, Vol.350 (2), p.767-775 |
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| container_title | The Astrophysical journal |
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| creator | MOFFAT, A. F. J DRISSEN, L ROBERT, C LAMONTAGNE, R COZIOL, R MOUSSEAU, N NIEMELA, V. S CERRUTI, M. A SEGGEWISS, W VAN WEEREN, N |
| description | Photometric and polarimetric monitoring of the Wolf-Rayet (W-R) + O-type binary system HDE 311884 = WR 47 over many orbital cycles shows the clear effects of phase-dependent electron scattering of O-star light as the orbiting O companion shines through varying column density of W-R stellar wind material. In contrast to this wind-type eclipse, the stars themselves do not quite eclipse. Both photometry and polarimetry give a consistent estimate of the mass-loss rate of the W-R component: at about 0.00003 solar mass/yr. The orbital inclination, i = 70 deg, along with the previously published velocity orbit, yields high masses: M(WN6) = 48 solar masses and M(O5:V) = 57 solar masses. 33 refs. |
| doi_str_mv | 10.1086/168429 |
| format | Article |
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F. J ; DRISSEN, L ; ROBERT, C ; LAMONTAGNE, R ; COZIOL, R ; MOUSSEAU, N ; NIEMELA, V. S ; CERRUTI, M. A ; SEGGEWISS, W ; VAN WEEREN, N</creator><creatorcontrib>MOFFAT, A. F. J ; DRISSEN, L ; ROBERT, C ; LAMONTAGNE, R ; COZIOL, R ; MOUSSEAU, N ; NIEMELA, V. S ; CERRUTI, M. A ; SEGGEWISS, W ; VAN WEEREN, N</creatorcontrib><description>Photometric and polarimetric monitoring of the Wolf-Rayet (W-R) + O-type binary system HDE 311884 = WR 47 over many orbital cycles shows the clear effects of phase-dependent electron scattering of O-star light as the orbiting O companion shines through varying column density of W-R stellar wind material. In contrast to this wind-type eclipse, the stars themselves do not quite eclipse. Both photometry and polarimetry give a consistent estimate of the mass-loss rate of the W-R component: at about 0.00003 solar mass/yr. 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Both photometry and polarimetry give a consistent estimate of the mass-loss rate of the W-R component: at about 0.00003 solar mass/yr. The orbital inclination, i = 70 deg, along with the previously published velocity orbit, yields high masses: M(WN6) = 48 solar masses and M(O5:V) = 57 solar masses. 33 refs.</description><subject>Astronomy</subject><subject>Binary and multiple stars</subject><subject>BINARY STARS</subject><subject>CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS</subject><subject>Earth, ocean, space</subject><subject>ECLIPSE</subject><subject>Eclipsing binaries</subject><subject>Exact sciences and technology</subject><subject>MAIN SEQUENCE STARS</subject><subject>MASS</subject><subject>MASS TRANSFER</subject><subject>PHOTOMETRY</subject><subject>POLARIMETRY</subject><subject>POLARIZATION</subject><subject>SPECTROPHOTOMETRY</subject><subject>STARS</subject><subject>STELLAR ACTIVITY 640102 -- Astrophysics & Cosmology-- Stars & Quasi-Stellar, Radio & X-Ray Sources</subject><subject>STELLAR WINDS</subject><subject>WOLF-RAYET STARS</subject><issn>0004-637X</issn><issn>1538-4357</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1990</creationdate><recordtype>article</recordtype><recordid>eNo9kFFLAzEQhIMoWKv-hiAiipwml1wu8U1qtUKxImp9O_bShEaul5KEYv-9V1t82t2Zj4UZhE4puaFEilsqJM_VHurRgsmMs6LcRz1CCM8EK78O0VGM35szV6qHfl7nPvmFScFpDO0ML30Dwe2EVbdC7RqX1n_mAmLMGh8jDpAM9hanuflT3crg2rUQ1njqG5u9wdokHBMEPHoYYkaplBxfTl_E9aS4w59Xx-jAQhPNyW720cfj8H0wysaTp-fB_TjTeVmmzM5KkxeGiFozUBK4YUA06JwqW9fcKkEJtVyxXBSiBiV4oWoqLbMlqCKnrI_Otn99TK6K2iWj59q3rdGpErKgUogOuthCOnThgrHVsuugC1NRUm1KrbalduD5FlxC1NDYAK128Z8WUqmSMfYLbs5zwg</recordid><startdate>19900220</startdate><enddate>19900220</enddate><creator>MOFFAT, A. F. J</creator><creator>DRISSEN, L</creator><creator>ROBERT, C</creator><creator>LAMONTAGNE, R</creator><creator>COZIOL, R</creator><creator>MOUSSEAU, N</creator><creator>NIEMELA, V. S</creator><creator>CERRUTI, M. A</creator><creator>SEGGEWISS, W</creator><creator>VAN WEEREN, N</creator><general>University of Chicago Press</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>OTOTI</scope></search><sort><creationdate>19900220</creationdate><title>Photometric and polarimetric variability and mass-loss rate of the massive binary Wolf-Rayet star HDE 311884 (WN6+O5: V)</title><author>MOFFAT, A. F. J ; DRISSEN, L ; ROBERT, C ; LAMONTAGNE, R ; COZIOL, R ; MOUSSEAU, N ; NIEMELA, V. S ; CERRUTI, M. 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F. J</creatorcontrib><creatorcontrib>DRISSEN, L</creatorcontrib><creatorcontrib>ROBERT, C</creatorcontrib><creatorcontrib>LAMONTAGNE, R</creatorcontrib><creatorcontrib>COZIOL, R</creatorcontrib><creatorcontrib>MOUSSEAU, N</creatorcontrib><creatorcontrib>NIEMELA, V. S</creatorcontrib><creatorcontrib>CERRUTI, M. A</creatorcontrib><creatorcontrib>SEGGEWISS, W</creatorcontrib><creatorcontrib>VAN WEEREN, N</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>OSTI.GOV</collection><jtitle>The Astrophysical journal</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>MOFFAT, A. F. J</au><au>DRISSEN, L</au><au>ROBERT, C</au><au>LAMONTAGNE, R</au><au>COZIOL, R</au><au>MOUSSEAU, N</au><au>NIEMELA, V. S</au><au>CERRUTI, M. A</au><au>SEGGEWISS, W</au><au>VAN WEEREN, N</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Photometric and polarimetric variability and mass-loss rate of the massive binary Wolf-Rayet star HDE 311884 (WN6+O5: V)</atitle><jtitle>The Astrophysical journal</jtitle><date>1990-02-20</date><risdate>1990</risdate><volume>350</volume><issue>2</issue><spage>767</spage><epage>775</epage><pages>767-775</pages><issn>0004-637X</issn><eissn>1538-4357</eissn><coden>ASJOAB</coden><abstract>Photometric and polarimetric monitoring of the Wolf-Rayet (W-R) + O-type binary system HDE 311884 = WR 47 over many orbital cycles shows the clear effects of phase-dependent electron scattering of O-star light as the orbiting O companion shines through varying column density of W-R stellar wind material. In contrast to this wind-type eclipse, the stars themselves do not quite eclipse. Both photometry and polarimetry give a consistent estimate of the mass-loss rate of the W-R component: at about 0.00003 solar mass/yr. The orbital inclination, i = 70 deg, along with the previously published velocity orbit, yields high masses: M(WN6) = 48 solar masses and M(O5:V) = 57 solar masses. 33 refs.</abstract><cop>Chicago, IL</cop><pub>University of Chicago Press</pub><doi>10.1086/168429</doi><tpages>9</tpages></addata></record> |
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| subjects | Astronomy Binary and multiple stars BINARY STARS CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS Earth, ocean, space ECLIPSE Eclipsing binaries Exact sciences and technology MAIN SEQUENCE STARS MASS MASS TRANSFER PHOTOMETRY POLARIMETRY POLARIZATION SPECTROPHOTOMETRY STARS STELLAR ACTIVITY 640102 -- Astrophysics & Cosmology-- Stars & Quasi-Stellar, Radio & X-Ray Sources STELLAR WINDS WOLF-RAYET STARS |
| title | Photometric and polarimetric variability and mass-loss rate of the massive binary Wolf-Rayet star HDE 311884 (WN6+O5: V) |
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