NSO IRES Program and Herbig Ae/Be Stars

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Date/Time:Friday, 11 Sep 2009 from 4:10 pm to 5:10 pm
Location:3 Physics Hall
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Sarah Willis (Iowa State University)

Herbig Ae/Be stars are the intermediate-mass analogs of T Tauri stars, young pre-main-sequence stars still shrouded by circumstellar material from the star formation process. These stars are characterized by strong emission line activity and are typically associated with excess near- and mid-infrared emission. Several morphological types have been detected and some of the observed system parameters, such as strength of certain emission lines and the IR colors, can give us an indication of the structure of the circumstellar environment. Studying the circumstellar environment may provide clues to differentiating between young Herbig Be stars and Classical Be stars, older (main-sequence) B type stars that are also characterized by emission line activity. In addition to discussing my scientific endeavors over the summer, I will also share some program highlights and explain why it's good to experience science in a totally different setting.