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Author (up) Sloan, G.C.; Groenewegen, M.; Srinivasan, S.; Lagadec, E.; Kraemer, K.E.; McDonald, I.; Boyer, M.L.; Zijlstra, A.; Kemper, C. openurl 
  Title Dust and metallicity in carbon stars Type Conference Article
  Year 2015 Publication Abbreviated Journal  
  Volume Issue Pages 216.04-216.04  
  Keywords  
  Abstract The Infrared Spectrograph on the Spitzer Space Telescope observed over 200 carbon stars in nearby metal-poor dwarf galaxies. These spectra probe how the quantity and composition of dust produced by carbon stars depend on initial metallicity, initial mass, and pulsational properties. For stars to produce significant quantities of dust, they must be pulsating in the fundamental mode with strong amplitudes. The spectra confirm that carbon stars with longer pulsation periods produce more dust and that the amount of dust shows no strong dependence on metallicity. This sample includes more carbon stars with low mass and reveals that for a given pulsation period, higher-mass stars produce less dust. Evidence is building for the layering of dust grains, with SiC cores in grains produced by metal-rich carbon stars, and mantles of MgS around grains in all embedded stars.  
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  Corporate Author Thesis  
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  Language Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title American Astronomical Society Meeting Abstracts  
  Series Volume 225 Series Issue Edition  
  ISSN ISBN Medium  
  Area Expedition Conference  
  Notes proceedings; Owner: ciska; Added to JabRef: 2015.04.16 Approved no  
  Call Number ASIAA @ ciska @ Serial 42063  
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