Barstow, JK;
Changeat, Q;
Chubb, KL;
Cubillos, PE;
Edwards, B;
MacDonald, RJ;
Min, M;
(2022)
A retrieval challenge exercise for the Ariel mission.
Experimental Astronomy
10.1007/s10686-021-09821-w.
(In press).
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Abstract
The Ariel mission, due to launch in 2029, will obtain spectroscopic information for 1000 exoplanets, providing an unprecedented opportunity for comparative exoplanetology. Retrieval codes - parameteric atmospheric models coupled with an inversion algorithm - represent the tool of choice for interpreting Ariel data. Ensuring that reliable and consistent results can be produced by these tools is a critical preparatory step for the mission. Here, we present the results of a retrieval challenge. We use five different exoplanet retrieval codes to analyse the same synthetic datasets, and test a) the ability of each to recover the correct input solution and b) the consistency of the results. We find that generally there is very good agreement between the five codes, and in the majority of cases the correct solutions are recovered. This demonstrates the reproducibility of retrievals for transit spectra of exoplanets, even when codes are not previously benchmarked against each other.
| Type: | Article |
|---|---|
| Title: | A retrieval challenge exercise for the Ariel mission |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1007/s10686-021-09821-w |
| Publisher version: | https://doi.org/10.1007/s10686-021-09821-w |
| Language: | English |
| Additional information: | This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. |
| Keywords: | First keyword, Second keyword, More |
| UCL classification: | 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 UCL > Provost and Vice Provost Offices > UCL BEAMS UCL |
| URI: | https://discovery-pp.ucl.ac.uk/id/eprint/10144101 |
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