Carruba, V;
Camargo, JIB;
Aljbaae, S;
Ferreira, FS;
Lin, E;
Figueiredo-Peixoto, V;
Banda-Huarca, MV;
... Wiseman, P; + view all
(2024)
Main belt asteroids taxonomical information from dark energy survey data.
Monthly Notices of the Royal Astronomical Society
, 527
(3)
pp. 6495-6505.
10.1093/mnras/stad3466.
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Abstract
While proper orbital elements are currently available for more than 1 million asteroids, taxonomical information is still lagging behind. Surveys like SDSS-MOC4 provided preliminary information for more than 100 000 objects, but many asteroids still lack even a basic taxonomy. In this study, we use Dark Energy Survey (DES) data to provide new information on asteroid physical properties. By cross-correlating the new DES data base with other data bases, we investigate how asteroid taxonomy is reflected in DES data. While the resolution of DES data is not sufficient to distinguish between different asteroid taxonomies within the complexes, except for V-type objects, it can provide information on whether an asteroid belongs to the C- or S-complex. Here, machine learning methods optimized through the use of genetic algorithms were used to predict the labels of more than 68 000 asteroids with no prior taxonomic information. Using a high-quality, limited set of asteroids with data on gri slopes and i - z colours, we detected 409 new possible V-type asteroids. Their orbital distribution is highly consistent with that of other known V-type objects.
| Type: | Article |
|---|---|
| Title: | Main belt asteroids taxonomical information from dark energy survey data |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1093/mnras/stad3466 |
| Publisher version: | http://dx.doi.org/10.1093/mnras/stad3466 |
| Language: | English |
| Additional information: | © 2023 The Author(s). Published by Oxford University Press on behalf of Royal Astronomical Society. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/), which permits unrestricted reuse, distribution, and reproduction in any medium, provided the original work is properly cited. |
| Keywords: | catalogues, celestial mechanics, minor planets, asteroids: general |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10184713 |
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