Abstract
We identified known Trans-Neptunian Objects (TNOs) and Centaurs in the complete Dark Energy Survey (DES) year six catalogue (DES Y6) through the Sky Body Tracker (SkyBoT) tool. We classified our data set of 144 objects into a widely used 4-class taxonomic system of TNOs. No such previous classification was available in the literature for most of these objects. From absolute magnitudes and average albedos, an estimation of the diameters of all these objects is obtained. Correlations involving colours, orbital parameters, dynamical classes, and sizes are also discussed. In particular, our largest reddest object has a diameter of 390+−5368 km and our largest cold classical, 255+−1719 km. Also, a weak correlation between colour and inclination is found within the population of resonant TNOs in addition to weak correlations between colour and phase slope in different bands.
| Original language | English |
|---|---|
| Pages (from-to) | 460-482 |
| Number of pages | 23 |
| Journal | Monthly Notices of the Royal Astronomical Society |
| Volume | 540 |
| Issue number | 1 |
| DOIs | |
| State | Published - Jun 1 2025 |
Funding
Funding for the DES Projects has been provided by the U.S. Department of Energy, the U.S. National Science Foundation, the Ministry of Science and Education of Spain, the Science and Technology Facilities Council of the United Kingdom, the Higher Education Funding Council for England, the National Center for Supercomputing Applications at the University of Illinois at Urbana-Champaign, the Kavli Institute of Cosmological Physics at the University of Chicago, the Center for Cosmology and Astro-Particle Physics at the Ohio State University, the Mitchell Institute for Fundamental Physics and Astronomy at Texas A&M University, Financiadora de Estudos e Projetos, Fundação Carlos Chagas Filho de Amparo à Pesquisa do Estado do Rio de Janeiro, Conselho Nacional de Desenvolvimento Científico e Tecnológico and the Ministério da Ciência, Tecnologia e Inovação, the Deutsche Forschungsgemeinschaft, and the Collaborating Institutions in the Dark Energy Survey. The DES participants from Spanish institutions are partially supported by MICINN under grants ESP2017-89838, PGC2018-094773, PGC2018-102021, SEV-2016-0588, SEV-2016-0597, and MDM-2015-0509, some of which include ERDF funds from the European Union. IFAE is partially funded by the CERCA program of the Generalitat de Catalunya. Research leading to these results has received funding from the European Research Council under the European Union’s Seventh Framework Program (FP7/2007-2013) including ERC grant agreements 240672, 291329, and 306478. We acknowledge support from the Brazilian Instituto Nacional de Ciência e Tecnologia (INCT) do e-Universo (CNPq grant 465376/2014-2). FSF acknowledges a CAPES support. This study was financed in part by Coordenação de Aperfeiçoamento de Pessoal de Nível Superior – Brazil (CAPES) – Finance Code 001. This research used computational resources from the Interinstitucional Laboratory of e-Astronomy (LIneA) with financial support from the National Institute of Science and Technology (INCT) of the e-Universo (process no. 465376/2014-2). The following grants are acknowledged: JIBC: CNPq 305917/2019-6 and 306691/2022-1, and FAPERJ 201.681/2019; RCB: FAPERJ E26/202.125/2020; MVB-H: FAPERJ E-26/ 200.480/2020; AP: CNPq 163708/2022-3; VFP: CNPq, PIBIC/ON (process 143944/2022-3); MA: CNPq 427700/2018-3, 310683/2017-3, and 473002/2013-2; PHB: University of Washington College of Arts and Sciences, Department of Astronomy, and the DiRAC Institute; FBR: grant 314772/2020-0; and RVM: CNPq 307368/2021-1. The author acknowledges an anonymous referee for helping improve the text. This manuscript has been authored by Fermi Research Alliance, LLC under contract no. DE-AC02-07CH11359 with the U.S. Department of Energy, Office of Science, Office of High Energy Physics. The DES data management system is supported by the National Science Foundation under grant nos AST-1138766 and AST-1536171. The DES participants from Spanish institutions are partially supported by MICINN under grants ESP2017-89838, PGC2018-094773, PGC2018-102021, SEV-2016-0588, SEV-2016-0597, and MDM-2015-0509, some of which include ERDF funds from the European Union. IFAE is partially funded by the CERCA program of the Generalitat de Catalunya. Research leading to these results has received funding from the European Research Council under the European Union’s Seventh Framework Program (FP7/2007-2013) including ERC grant agreements 240672, 291329, and 306478. We acknowledge support from the Brazilian Instituto Nacional de Ciência e Tecnologia (INCT) do e-Universo (CNPq grant 465376/2014-2). This manuscript has been authored by Fermi Research Alliance, LLC under contract no. DE-AC02-07CH11359 with the U.S. Department of Energy, Office of Science, Office of High Energy Physics. The DES data management system is supported by the National Science Foundation under grant nos AST-1138766 and AST-1536171. This research has made use of the VESPA portal and services ( https://vespa.obspm.fr ) funded by European Union’s under grant agreement no. 871149. Except where explicitly mentioned, data are distributed under Etalab Open License 2.0 (compliant with CC-BY 2.0 license). The Europlanet 2024 Research Infrastructure project has received funding from the European Union’s Horizon 2020 research and innovation programme under grant agreement no. 871149. The Europlanet 2020 Research Infrastructure project has received funding from the European Union’s Horizon 2020 research and innovation programme under grant agreement no. 654208. This work used the EGI Infrastructure with the dedicated support of IN2P3-IRES and CESNET-MCC. VESPA has first been designed in the frame of Europlanet-RI JRA4 work package (IDIS activity). Additional funding was provided in France by the Action Spécifique Observatoire Virtuel and Programme National de Planétologie/INSU.
Keywords
- Kuiper belt: general
- minor planets, asteroids: general
- surveys