Isotopic Titanium Abundances In Local M Dwarfs

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dc.contributor.utaustinauthorChavez, Joyen_US
dc.contributor.utaustinauthorLambert, David L.en_US
dc.creatorChavez, Joyen_US
dc.creatorLambert, David L.en_US
dc.date.accessioned2016-04-28T19:36:40Z
dc.date.available2016-04-28T19:36:40Z
dc.date.issued2009-07en
dc.description.abstractRelative abundances of the five stable isotopes of titanium (Ti-46 to Ti-50) are measured for 11 M dwarfs belonging to the thin disk (four stars), thick disk (three stars), the halo (one star), and either the thick or the thin disk (three stars). Over the metallicity range of the sample (-1 < [Fe/H] < 0), the isotopic ratios are approximately constant at the solar system ratios. There is no discernible difference between the isotopic ratios for thin and thick disk stars. Isotopic ratios are in fair accord with recent calculations of Galactic chemical evolution despite the fact that such calculations underpredict [Ti/Fe] by about 0.4 dex at all metallicities.en_US
dc.description.departmentAstronomyen_US
dc.description.sponsorshipRobert A. Welch Foundation of Houston, Texasen_US
dc.identifierdoi:10.15781/T2MZ3F
dc.identifier.Filename2009_07_isotopictitanium.pdfen_US
dc.identifier.citationChavez, Joy, and David L. Lambert. "Isotopic Titanium Abundances in Local M Dwarfs." The Astrophysical Journal, Vol. 699, No. 2 (Jul., 2009): 1906.en_US
dc.identifier.doi10.1088/0004-637x/699/2/1906en_US
dc.identifier.issn0004-637Xen_US
dc.identifier.urihttp://hdl.handle.net/2152/34899
dc.language.isoEnglishen_US
dc.relation.ispartofen_US
dc.relation.ispartofserialAstrophysical Journalen_US
dc.rightsAdministrative deposit of works to Texas ScholarWorks: This works author(s) is or was a University faculty member, student or staff member; this article is already available through open access or the publisher allows a PDF version of the article to be freely posted online. The library makes the deposit as a matter of fair use (for scholarly, educational, and research purposes), and to preserve the work and further secure public access to the works of the University.en_US
dc.rights.restrictionOpenen_US
dc.subjectstars: abundancesen_US
dc.subjectgalactic chemical evolutionen_US
dc.subjectstar spectroscopic surveyen_US
dc.subjectmodelen_US
dc.subjectatmospheresen_US
dc.subjectmassive starsen_US
dc.subjectgamma-systemen_US
dc.subjecti supernovaeen_US
dc.subjectmilky-wayen_US
dc.subjectsolaren_US
dc.subjectnucleosynthesisen_US
dc.subjectcarbonen_US
dc.subjectastronomy & astrophysicsen_US
dc.titleIsotopic Titanium Abundances In Local M Dwarfsen_US
dc.typeArticleen_US

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