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LEECH: A 100 Night Exoplanet Imaging Survey at the LBT

Abstract

In February 2013, the LEECH (LBTI Exozodi Exoplanet Common Hunt) survey began its 100-night campaign from the Large Binocular Telescope atop Mount Graham in Arizona. LEECH neatly complements other high-contrast planet imaging efforts by observing stars in L' band (3.8 microns) as opposed to the shorter wavelength near-infrared bands (1–2.3 microns). This part of the spectrum offers deeper mass sensitivity for intermediate age (several hundred Myr-old) systems, since their Jovian-mass planets radiate predominantly in the mid-infrared. In this proceedings, we present the science goals for LEECH and a preliminary contrast curve from some early data.

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References

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Beuzit, J.-L., Feldt, M., Dohlen, K., et al. 2008, SPIE, 7014
Hinkley, S., Oppenheimer, B. R., Zimmerman, N., et al. 2011, PASP, 123, 74
Macintosh, B. A., Graham, J. R., Palmer, D. W., et al. 2008, SPIE, 7015
Tamura, M. 2009, AIPC, 1158, 11
Vigan, A., Patience, J., Marois, C., et al. 2012, A&A, 544, A9
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