Col-OSSOS: The Colours of the Outer Solar System Origins Survey
Megan E. Schwamb, Wesley C. Fraser, Michele T. Bannister, Michael, Marsset, Rosemary E. Pike, J. J. Kavelaars, Susan D. Benecchi, Matthew J., Lehner, Shiang-Yu Wang, Audrey Thirouin, Audrey Delsanti, Nuno Peixinho,, Kathryn Volk, Mike Alexandersen, Ying-Tung Chen, Brett Gladman

TL;DR
Col-OSSOS provides a detailed, high-precision optical and near-infrared photometric survey of nearly a hundred trans-Neptunian objects, revealing compositional classes and their distribution in the outer Solar System.
Contribution
This study offers the first flux-limited compositional dynamical map of the outer Solar System based on combined optical and near-infrared data of TNOs, with new insights into their taxonomic groups.
Findings
Two taxonomic groups for excited TNOs: neutral and red.
Neutral class outnumbers red with a ratio of 4:1, possibly up to 11:1.
Observations support a primordial disk dominated by neutral-class objects.
Abstract
The Colours of the Outer Solar System Origins Survey (Col-OSSOS) is acquiring near-simultaneous , , and photometry of unprecedented precision with the Gemini North Telescope, targeting nearly a hundred trans-Neptunian objects (TNOs) brighter than mag discovered in the Outer Solar System Origins Survey. Combining the optical and near-infrared photometry with the well-characterized detection efficiency of the Col-OSSOS target sample will provide the first flux-limited compositional dynamical map of the outer Solar System. In this paper, we describe our observing strategy and detail the data reduction processes we employ, including techniques to mitigate the impact of rotational variability. We present optical and near-infrared colors for 35 TNOs. We find two taxonomic groups for the dynamically excited TNOs, the neutral and red classes, which divide at $g-r \simeq…
Peer Reviews
No public reviews on file for this paper yet. If you reviewed it on a platform where reviews are public (OpenReview, ICLR, NeurIPS, ICML), you can paste yours below so the community can read it here.
Videos
No videos yet. Explain this paper in a talk, walkthrough, or lecture? Add one.
