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Simultaneous Linear and Circular Optical Polarimetry of Asteroid (4) Vesta
Sloane J. Wiktorowicz, Larissa A. Nofi
From a single, 3.8-hour observation of asteroid (4) Vesta at phase angle with the POLISH2 polarimeter at the Lick Observatory Shane 3-m telescope, we confirm rotationa…
Gemini Planet Imager Spectroscopy of the HR 8799 planets c and d
Patrick Ingraham, Mark S. Marley, Didier Saumon +43
During the first-light run of the Gemini Planet Imager (GPI) we obtained K-band spectra of exoplanets HR 8799 c and d. Analysis of the spectra indicates that planet d may be warmer…
Connecting the interstellar magnetic field at the heliosphere to the Loop I superbubble
P. C. Frisch, A. Berdyugin, H. O. Funsten +6
The local interstellar magnetic field affects both the heliosphere and the surrounding cluster of interstellar clouds (CLIC). Measurements of linearly polarized starlight provide t…
Toward the Detection of Exoplanet Transits with Polarimetry
Sloane J. Wiktorowicz, Gregory P. Laughlin
In contrast to photometric transits, whose peak signal occurs at mid-transit due to occultation of the brightest region of the disk, polarimetric transits provide a signal upon ing…
The First H-band Spectrum of the Massive Gas Giant Planet beta Pictoris b with the Gemini Planet Imager
Jeffrey Chilcote, Travis Barman, Michael P. Fitzgerald +43
Using the recently installed Gemini Planet Imager (GPI), we have taken the first H-band spectrum of the planetary companion to the nearby young star beta Pictoris. GPI is designed…
Polarimetry with the Gemini Planet Imager: Methods, Performance at First Light, and the Circumstellar Ring around HR 4796A
Marshall D. Perrin, Gaspard Duchene, Max Millar-Blanchaer +41
We present the first results from the polarimetry mode of the Gemini Planet Imager (GPI), which uses a new integral field polarimetry architecture to provide high contrast linear p…