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A Direct Imaging Survey of Spitzer detected debris disks: Occurrence of giant planets in dusty systems
Tiffany Meshkat, Dimitri Mawet, Marta Bryan +10
We describe a joint high contrast imaging survey for planets at Keck and VLT of the last large sample of debris disks identified by the Spitzer Space Telescope. No new substellar c…
The First Scattered Light Image of the Debris Disk around the Sco-Cen target HD 129590
Elisabeth Matthews, Sasha Hinkley, Arthur Vigan +7
We present the first scattered light image of the debris disk around HD 129590, a ~1.3 M G1V member of the Scorpius Centaurus association with age ~10-16 Myr. The debris di…
No difference in orbital parameters of RV-detected giant planets between 0.1 and 5 au in single vs multi-stellar systems
Henry Ngo, Heather A. Knutson, Marta L. Bryan +8
Our Keck/NIRC2 imaging survey searches for stellar companions around 144 systems with radial velocity (RV) detected giant planets to determine whether stellar binaries influence th…
Evidence that the Directly-Imaged Planet HD 131399 Ab is a Background Star
Eric L. Nielsen, Robert J. De Rosa, Julien Rameau +55
We present evidence that the recently discovered, directly-imaged planet HD 131399 Ab is a background star with non-zero proper motion. From new JHK1L' photometry and spectroscopy…
Project 1640 Observations of Brown Dwarf GJ 758 B: Near-Infrared Spectrum and Atmospheric Modeling
R. Nilsson, A. Veicht, P. A. Giorla Godfrey +23
The nearby Sun-like star GJ 758 hosts a cold substellar companion, GJ 758 B, at a projected separation of 30 AU, previously detected in high-contrast multi-band photometr…
Polarized disk emission from Herbig Ae/Be stars observed using Gemini Planet Imager: HD 144432, HD 150193, HD 163296, and HD 169142
John D. Monnier, T. J. Harries, A. Aarnio +11
In order to look for signs of on-going planet formation in young disks, we carried out the first J-band polarized emission imaging of the Herbig Ae/Be stars HD 150193, HD 163296, a…