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Searching for the Youngest Exoplanets

Searching for the Youngest Exoplanets. Jacob N. McLane Northern Arizona University Dr. Lisa Prato Lowell Observatory. Our Project. Identifying Young (~2 Myr ) Planet Hosts Refine Planetary Formation and Evolution Few examples of planets around young stars

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Searching for the Youngest Exoplanets

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  1. Searching for the Youngest Exoplanets Jacob N. McLane Northern Arizona University Dr. Lisa Prato Lowell Observatory

  2. Our Project • Identifying Young (~2 Myr) Planet Hosts • Refine Planetary Formation and Evolution • Few examples of planets around young stars • Most found through direct imaging • Ages of 10’s of Myr • Radial Velocity (RV) Survey Marois et al. 2008

  3. Complications • Star formation regions are distant (>100 pc) • Faint, especially in visible wavelengths, because of extinction • Strong magnetic fields, massive starspots • Circumstellar disks

  4. Solutions • Use longer integration times • Observe the targets at multiple wavelengths

  5. Data Gathering • 2.7 Meter Harlan J. Smith Telescope at McDonald Observatory • Remote Observation with NASA Infrared Telescope Facility (IRTF) Credit: Taylor S. Chonis Credit: McDonald Observatory

  6. Data Reduction • Near Infrared Spectrograph (NIRSPEC) at Keck II • CSHELL at NASA’s IRTF • NIRSPEC data were reduced with REDSPEC • CSHELL data were reduced using code from Dr. Chris Crockett Credit: W.M. Keck Observatory

  7. Fitting Process

  8. CI Tau 9.49329 Day Orbital Period

  9. PTFO 8-8695 0.4 Day Orbital Period van Eyken et al. 2012

  10. Going Forward • Large amount of data still to be reduced • Includes both host candidates and new targets • Continuing the survey

  11. Acknowledgements • Dr. Christopher Crockett • Dr. Cristopher Johns-Krull • Wei Chen • NASA • Arizona Space Grant Consortium • NAU Space Grant • Dr. Lisa Prato

  12. Questions?

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