The Herbig Ae SB2 system HD 104237
The double-lined spectroscopic binary HD 104237 (DX Cha) is part of a complex system of some half-dozen nearby young stars. We report a significant change from an orbit for the SB2 system derived from 1999-2000 observations. We obtain abundances from the primary and secondary spectra. The abundance...
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| Veröffentlicht in: | Monthly notices of the Royal Astronomical Society 2013-06, Vol.431 (4), p.3485-3493 |
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| container_title | Monthly notices of the Royal Astronomical Society |
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| creator | Cowley, C. R. Castelli, F. Hubrig, S. |
| description | The double-lined spectroscopic binary HD 104237 (DX Cha) is part of a complex system of some half-dozen nearby young stars. We report a significant change from an orbit for the SB2 system derived from 1999-2000 observations. We obtain abundances from the primary and secondary spectra. The abundance analysis uses both detailed spectral synthesis and determinations based on equivalent widths of weak absorption lines with W
λ typically |
| doi_str_mv | 10.1093/mnras/stt430 |
| format | Article |
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λ typically <25 mÅ. Abundances are derived for 25 elements in the primary, and 17 elements in the secondary. Apart from lithium and zirconium, abundances do not depart significantly from solar. Lithium may be marginally enhanced with respect to the meteoritic value in the primary. It somewhat depleted in the secondary. The emission-line spectrum is typical of Herbig Ae stars. We compare and contrast the spectra of the HD 104237 primary and two other Herbig Ae stars with low v sin (i), HD 101412 and HD 190073.</description><identifier>ISSN: 0035-8711</identifier><identifier>EISSN: 1365-2966</identifier><identifier>DOI: 10.1093/mnras/stt430</identifier><language>eng</language><publisher>London: Oxford University Press</publisher><subject>Astronomy ; Double stars ; Orbits ; Spectrum analysis</subject><ispartof>Monthly notices of the Royal Astronomical Society, 2013-06, Vol.431 (4), p.3485-3493</ispartof><rights>2013 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society 2013</rights><rights>Copyright Oxford University Press, UK Jun 1, 2013</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c295t-d3b0ae5a31a0017e7da7b19c6c64c0941fa612686565706574a9494edb9bdfef3</citedby><cites>FETCH-LOGICAL-c295t-d3b0ae5a31a0017e7da7b19c6c64c0941fa612686565706574a9494edb9bdfef3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,1604,27924,27925</link.rule.ids><linktorsrc>$$Uhttps://dx.doi.org/10.1093/mnras/stt430$$EView_record_in_Oxford_University_Press$$FView_record_in_$$GOxford_University_Press</linktorsrc></links><search><creatorcontrib>Cowley, C. R.</creatorcontrib><creatorcontrib>Castelli, F.</creatorcontrib><creatorcontrib>Hubrig, S.</creatorcontrib><title>The Herbig Ae SB2 system HD 104237</title><title>Monthly notices of the Royal Astronomical Society</title><addtitle>Mon. Not. R. Astron. Soc</addtitle><description>The double-lined spectroscopic binary HD 104237 (DX Cha) is part of a complex system of some half-dozen nearby young stars. We report a significant change from an orbit for the SB2 system derived from 1999-2000 observations. We obtain abundances from the primary and secondary spectra. The abundance analysis uses both detailed spectral synthesis and determinations based on equivalent widths of weak absorption lines with W
λ typically <25 mÅ. Abundances are derived for 25 elements in the primary, and 17 elements in the secondary. Apart from lithium and zirconium, abundances do not depart significantly from solar. Lithium may be marginally enhanced with respect to the meteoritic value in the primary. It somewhat depleted in the secondary. The emission-line spectrum is typical of Herbig Ae stars. We compare and contrast the spectra of the HD 104237 primary and two other Herbig Ae stars with low v sin (i), HD 101412 and HD 190073.</description><subject>Astronomy</subject><subject>Double stars</subject><subject>Orbits</subject><subject>Spectrum analysis</subject><issn>0035-8711</issn><issn>1365-2966</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2013</creationdate><recordtype>article</recordtype><recordid>eNp90D1PwzAQgGELgUQobPwACwYWQu_8GY-lBYJUiYEyW07iQCvSBDsZ-u8JhJnhdMujO-kl5BLhDsHwebMPLs5j3wsORyRBrmTKjFLHJAHgMs004ik5i3EHAIIzlZCrzYenuQ_F9p0uPH29ZzQeYu8bmq8ogmBcn5OT2n1Gf_G3Z-Tt8WGzzNP1y9PzcrFOS2Zkn1a8AOel4-gAUHtdOV2gKVWpRAlGYO0UMpUpqaSGcYQzwghfFaaoal_zGbme7nah_Rp87O2uHcJ-fGmRS4kMdIajup1UGdoYg69tF7aNCweLYH8q2N8Kdqow8puJt0P3v_wGon9a0w</recordid><startdate>20130601</startdate><enddate>20130601</enddate><creator>Cowley, C. R.</creator><creator>Castelli, F.</creator><creator>Hubrig, S.</creator><general>Oxford University Press</general><scope>AAYXX</scope><scope>CITATION</scope><scope>8FD</scope><scope>H8D</scope><scope>L7M</scope></search><sort><creationdate>20130601</creationdate><title>The Herbig Ae SB2 system HD 104237</title><author>Cowley, C. R. ; Castelli, F. ; Hubrig, S.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c295t-d3b0ae5a31a0017e7da7b19c6c64c0941fa612686565706574a9494edb9bdfef3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2013</creationdate><topic>Astronomy</topic><topic>Double stars</topic><topic>Orbits</topic><topic>Spectrum analysis</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Cowley, C. R.</creatorcontrib><creatorcontrib>Castelli, F.</creatorcontrib><creatorcontrib>Hubrig, S.</creatorcontrib><collection>CrossRef</collection><collection>Technology Research Database</collection><collection>Aerospace Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Monthly notices of the Royal Astronomical Society</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>Cowley, C. R.</au><au>Castelli, F.</au><au>Hubrig, S.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>The Herbig Ae SB2 system HD 104237</atitle><jtitle>Monthly notices of the Royal Astronomical Society</jtitle><stitle>Mon. Not. R. Astron. Soc</stitle><date>2013-06-01</date><risdate>2013</risdate><volume>431</volume><issue>4</issue><spage>3485</spage><epage>3493</epage><pages>3485-3493</pages><issn>0035-8711</issn><eissn>1365-2966</eissn><abstract>The double-lined spectroscopic binary HD 104237 (DX Cha) is part of a complex system of some half-dozen nearby young stars. We report a significant change from an orbit for the SB2 system derived from 1999-2000 observations. We obtain abundances from the primary and secondary spectra. The abundance analysis uses both detailed spectral synthesis and determinations based on equivalent widths of weak absorption lines with W
λ typically <25 mÅ. Abundances are derived for 25 elements in the primary, and 17 elements in the secondary. Apart from lithium and zirconium, abundances do not depart significantly from solar. Lithium may be marginally enhanced with respect to the meteoritic value in the primary. It somewhat depleted in the secondary. The emission-line spectrum is typical of Herbig Ae stars. We compare and contrast the spectra of the HD 104237 primary and two other Herbig Ae stars with low v sin (i), HD 101412 and HD 190073.</abstract><cop>London</cop><pub>Oxford University Press</pub><doi>10.1093/mnras/stt430</doi><tpages>9</tpages></addata></record> |
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| subjects | Astronomy Double stars Orbits Spectrum analysis |
| title | The Herbig Ae SB2 system HD 104237 |
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