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A Census of Young Binary Stars and their Properties

A Census of Young Binary Stars and their Properties. Kendra Kellogg Northern Arizona University Dr. Lisa Prato Lowell Observatory. Introduction. Our goal: To explore and better understand the properties of circumstellar disks in T Tauri binary systems My job:

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A Census of Young Binary Stars and their Properties

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  1. A Census of Young Binary Stars and their Properties Kendra Kellogg Northern Arizona University Dr. Lisa Prato Lowell Observatory

  2. Introduction Our goal: To explore and better understand the properties of circumstellar disks in T Tauri binary systems My job: To organize and update a database containing these data and analyze them

  3. Why young binaries? • Most young stars are found in binary systems; sometimes triple or quadruple systems • Young stars still have most of their disks starfieldobservatory.com

  4. Why disks? • Circumstellar or circumbinary disks are the beginnings of coalesced planetary systems like our own solar system nasa.gov spaceandtechnology.com

  5. Data and analysis • Used data from published papers • Used IDL (Interactive Data Language)‏ for the analysis

  6. Old Database

  7. New Database

  8. What are K, L and K-L? • K (2.2μm)‏ • L (3.4μm)‏ • K-L colors show presence of dusty disk Furlan et al. 2006

  9. Usage of Database • Compared K-L colors of selected stars to the K-L colors from other data sets of the same stars • Stars below 0.4 mag do not have disks and those above do have disks (Edwards et al. 1993)‏

  10. Conclusions • Results show that star systems and circumstellar disks change over time Padgett et al. 1999

  11. Acknowlegements I would like to thank: Mentor - Dr. Lisa Prato Space Grant Director - Dr. Nadine Barlow NASA Space Grant Any Questions?

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