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- Centre National de la Recherche ScientifiqueFR111 papers
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7 papers · 2 filters
Col-OSSOS: Colors of the Interstellar Planetesimal 1I/`Oumuamua
Michele T. Bannister, Megan E. Schwamb, Wesley C. Fraser +10
The recent discovery by Pan-STARRS1 of 1I/2017 U1 (`Oumuamua), on an unbound and hyperbolic orbit, offers a rare opportunity to explore the planetary formation processes of other s…
Variability of the Lowest Mass Objects in the AB Doradus Moving Group
Johanna M. Vos, Katelyn N. Allers, Beth A. Biller +5
We present the detection of [m] photometric variability in two young, L/T transition brown dwarfs, WISE J004701.06+680352.1 (W0047) and 2MASS J2244316+204343 (2M2244) using…
Planet Four: Terrains - Discovery of Araneiforms Outside of the South Polar Layered Deposits
Megan E. Schwamb, Klaus-Michael Aye, Ganna Portyankina +7
We present the results of a systematic mapping of seasonally sculpted terrains on the South Polar region of Mars with the Planet Four: Terrains (P4T) online citizen science project…
Col-OSSOS: z Band Photometry Reveals Three Distinct TNO Surface Types
Rosemary E. Pike, Wesley C. Fraser, Megan E. Schwamb +11
Several different classes of trans-Neptunian objects (TNOs) have been identified based on their optical and near-infrared colors. As part of the Colours of the Outer Solar System O…
Gemini/GMOS Transmission Spectral Survey: Complete Optical Transmission Spectrum of the hot Jupiter WASP-4b
C. M. Huitson, J-. M Desert, J. L. Bean +3
We present the complete optical transmission spectrum of the hot Jupiter WASP-4b from 440-940 nm at R ~ 400-1500 obtained with the Gemini Multi-Object Spectrometers (GMOS); this is…
Improving and Assessing Planet Sensitivity of the GPI Exoplanet Survey with a Forward Model Matched Filter
Jean-Baptiste Ruffio, Bruce Macintosh, Jason J. Wang +49
We present a new matched filter algorithm for direct detection of point sources in the immediate vicinity of bright stars. The stellar Point Spread Function (PSF) is first subtract…