Chemical Abundances In Field Red Giants From High-Resolution H-Band Spectra Using The APOGEE Spectral Linelist

dc.contributor.utaustinauthorShetrone, Matthew D.en_US
dc.creatorSmith, Verne V.en_US
dc.creatorCunha, Katiaen_US
dc.creatorShetrone, Matthew D.en_US
dc.creatorMeszaros, Szabolcsen_US
dc.creatorPrieto, Carlos Allendeen_US
dc.creatorBizyaev, Dmitryen_US
dc.creatorPerez, Ana Garciaen_US
dc.creatorMajewski, Steven R.en_US
dc.creatorSchiavon, Ricardoen_US
dc.creatorHoltzman, Jonen_US
dc.creatorJohnson, John A.en_US
dc.description.abstractHigh-resolution H-band spectra of five bright field K, M, and MS giants, obtained from the archives of the Kitt Peak National Observatory Fourier transform spectrometer, are analyzed to determine chemical abundances of 16 elements. The abundances were derived via spectrum synthesis using the detailed linelist prepared for the Sloan Digital Sky Survey III Apache Point Galactic Evolution Experiment (APOGEE), which is a high-resolution near-infrared spectroscopic survey to derive detailed chemical abundance distributions and precise radial velocities for 100,000 red giants sampling all Galactic stellar populations. The red giant sample studied here was chosen to probe which chemical elements can be derived reliably from the H-band APOGEE spectral region. These red giants consist of two K-giants (a Boo and mu Leo), two M-giants (beta And and delta Oph), and one thermally pulsing asymptotic giant branch (TP-AGB) star of spectral type MS (HD 199799). Measured chemical abundances include the cosmochemically important isotopes C-12, C-13, N-14, and O-16, along with Mg, Al, Si, K, Ca, Ti, V, Cr, Mn, Fe, Co, Ni, and Cu. The K and M giants exhibit the abundance signature of the first dredge-up of CN-cycle material, while the TP-AGB star shows clear evidence of the addition of C-12 synthesized during He-4-burning thermal pulses and subsequent third dredge-up. A comparison of the abundances derived here with published values for these stars reveals consistent results to similar to 0.1 dex. The APOGEE spectral region and linelist is thus well suited for probing both Galactic chemical evolution, as well as internal nucleosynthesis and mixing in populations of red giants via high-resolution spectroscopy.en_US
dc.description.departmentMcDonald Observatoryen_US
dc.description.sponsorshipNational Science Foundation AST1109888en_US
dc.description.sponsorshipCAPES, Brazilen_US
dc.description.sponsorshipNational Aeronautics and Space Administrationen_US
dc.description.sponsorshipAlfred P. Sloan Foundationen_US
dc.description.sponsorshipU.S. Department of Energy Office of Scienceen_US
dc.description.sponsorshipUniversity of Arizonaen_US
dc.description.sponsorshipBrazilian Participation Groupen_US
dc.description.sponsorshipBrookhavenNational Laboratoryen_US
dc.description.sponsorshipUniversity of Cambridgeen_US
dc.description.sponsorshipCarnegie Mellon Universityen_US
dc.description.sponsorshipUniversity of Floridaen_US
dc.description.sponsorshipFrench Participation Groupen_US
dc.description.sponsorshipGerman Participation Groupen_US
dc.description.sponsorshipHarvard Universityen_US
dc.description.sponsorshipInstituto de Astrofisica de Canariasen_US
dc.description.sponsorshipMichigan State/Notre Dame/JINA Participation Groupen_US
dc.description.sponsorshipJohns Hopkins Universityen_US
dc.description.sponsorshipLawrence Berkeley National Laboratoryen_US
dc.description.sponsorshipMax Planck Institute for Astrophysicsen_US
dc.description.sponsorshipNew Mexico State Universityen_US
dc.description.sponsorshipNew York Universityen_US
dc.description.sponsorshipOhio State Universityen_US
dc.description.sponsorshipPennsylvania State Universityen_US
dc.description.sponsorshipUniversity of Portsmouthen_US
dc.description.sponsorshipPrinceton Universityen_US
dc.description.sponsorshipSpanish Participation Groupen_US
dc.description.sponsorshipUniversity of Tokyoen_US
dc.description.sponsorshipUniversity of Utahen_US
dc.description.sponsorshipVanderbilt Universityen_US
dc.description.sponsorshipUniversity of Virginiaen_US
dc.description.sponsorshipUniversity of Washingtonen_US
dc.description.sponsorshipYale Universityen_US
dc.identifier.citationSmith, Verne V., Katia Cunha, Matthew D. Shetrone, Szabolcs Meszaros, Carlos Allende Prieto, Dmitry Bizyaev, Ana Garcia Perez et al. "Chemical Abundances in Field Red Giants from High-resolution H-band Spectra Using the APOGEE Spectral Linelist." The Astrophysical Journal, Vol. 765, No. 1 (Mar., 2013): 16.en_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.subjectstars: abundancesen_US
dc.subjectstars: late-typeen_US
dc.subjecty-2 isochronesen_US
dc.subjectastronomy & astrophysicsen_US
dc.titleChemical Abundances In Field Red Giants From High-Resolution H-Band Spectra Using The APOGEE Spectral Linelisten_US
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