a census of young binary stars and their properties
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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: - PowerPoint PPT PresentationTRANSCRIPT
A Census of Young Binary Stars and their Properties
Kendra KelloggNorthern Arizona University
Dr. Lisa PratoLowell Observatory
Introduction
Our goal:To explore and better understand the properties of
circumstellar disks in T Tauri binary systemsMy job:To organize and update a database containing these data
and analyze them
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
Why disks?
Circumstellar or circumbinary disks are the beginnings of coalesced planetary systems like our own solar system
nasa.gov spaceandtechnology.com
Data and analysis
Used data from published papers Used IDL (Interactive Data Language) for the
analysis
Old Database
New Database
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
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)
Conclusions
Results show that star systems and circumstellar disks change over time
Padgett et al. 1999
Acknowlegements
I would like to thank:Mentor - Dr. Lisa PratoSpace Grant Director - Dr. Nadine BarlowNASA Space Grant
Any Questions?