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The Keck Planet Imager and Characterizer: Phase I fiber injection unit early performance and commissioning
Evan C. Morris, Jason J. Wang, Jean-Baptiste Ruffio +5
The Keck Planet Imager and Characterizer (KPIC) is an upgrade to the Keck II adaptive optics system and instrument suite with the goal of improving direct imaging and high-resoluti…
GPI 2.0 : Optimizing reconstructor performance in simulations and preliminary contrast estimates
Alexander Madurowicz, Bruce Macintosh, Lisa Poyneer +12
During its move from the mountaintop of Cerro Pachon in Chile to the peak of Mauna Kea in Hawaii, the Gemini Planet Imager will make a pit stop to receive various upgrades, includi…
Spiral Arm Pattern Motion in the SAO 206462 Protoplanetary Disk
Chengyan Xie, Bin Ren, Ruobing Dong +5
Spiral arms have been observed in more than a dozen protoplanetary disks, yet the origin of nearly all systems is under debate. Multi-epoch monitoring of spiral arm morphology offe…
Early High-contrast Imaging Results with Keck/NIRC2-PWFS: The SR 21 Disk
Taichi Uyama, Bin Ren, Dimitri Mawet +22
High-contrast imaging of exoplanets and protoplanetary disks depends on wavefront sensing and correction made by adaptive optics instruments. Classically, wavefront sensing has bee…
Gemini Planet Imager Spectroscopy of the Dusty Substellar Companion HD 206893 B
K. Ward-Duong, J. Patience, K. Follette +55
We present new near-infrared Gemini Planet Imager (GPI) spectroscopy of HD 206893 B, a substellar companion orbiting within the debris disk of its F5V star. The , , , and…
Moderate-Resolution -Band Spectroscopy of Substellar Companion Andromedae b
Kielan K. Wilcomb, Quinn M. Konopacky, Travis S. Barman +5
We present moderate-resolution () band spectra of the "super-Jupiter," Andromedae b. The data were taken with the OSIRIS integral field spectrograph at Keck Obse…