dc.contributor.author | Lienhard, F | |
dc.contributor.author | Queloz, D | |
dc.contributor.author | Gillon, M | |
dc.contributor.author | Burdanov, A | |
dc.contributor.author | Delrez, L | |
dc.contributor.author | Ducrot, E | |
dc.contributor.author | Handley, W | |
dc.contributor.author | Jehin, E | |
dc.contributor.author | Murray, CA | |
dc.contributor.author | Triaud, AHMJ | |
dc.contributor.author | Gillen, E | |
dc.contributor.author | Mortier, A | |
dc.contributor.author | Rackham, BV | |
dc.date.accessioned | 2021-05-21T08:37:36Z | |
dc.date.available | 2020-07-10 | |
dc.date.available | 2021-05-21T08:37:36Z | |
dc.date.issued | 2020-09-01 | |
dc.identifier.issn | 0035-8711 | |
dc.identifier.uri | https://qmro.qmul.ac.uk/xmlui/handle/123456789/71959 | |
dc.description.abstract | We conducted a global analysis of the TRAPPIST Ultra-Cool Dwarf Transit Survey- A prototype of the SPECULOOS transit search conducted with the TRAPPIST-South robotic telescope in Chile from 2011 to 2017-to estimate the occurrence rate of close-in planets such as TRAPPIST-1b orbiting ultra-cool dwarfs. For this purpose, the photometric data of 40 nearby ultra-cool dwarfs were reanalysed in a self-consistent and fully automated manner starting from the raw images. The pipeline developed specifically for this task generates differential light curves, removes non-planetary photometric features and stellar variability, and searches for transits. It identifies the transits of TRAPPIST-1b and TRAPPIST-1c without any human intervention. To test the pipeline and the potential output of similar surveys, we injected planetary transits into the light curves on a star-by-star basis and tested whether the pipeline is able to detect them. The achieved photometric precision enables us to identify Earth-sized planets orbiting ultra-cool dwarfs as validated by the injection tests. Our planet-injection simulation further suggests a lower limit of 10 per cent on the occurrence rate of planets similar to TRAPPIST-1b with a radius between 1 and 1.3 R⊕ and the orbital period between 1.4 and 1.8 d. | en_US |
dc.format.extent | 3790 - 3808 | |
dc.publisher | Oxford University Press | en_US |
dc.relation.ispartof | Monthly Notices of the Royal Astronomical Society | |
dc.title | Global analysis of the TRAPPIST Ultra-Cool Dwarf Transit Survey | en_US |
dc.type | Article | en_US |
dc.rights.holder | © 2020 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Society | |
dc.identifier.doi | 10.1093/mnras/staa2054 | |
pubs.issue | 3 | en_US |
pubs.notes | Not known | en_US |
pubs.publication-status | Published | en_US |
pubs.volume | 497 | en_US |
dcterms.dateAccepted | 2020-07-10 | |
rioxxterms.funder | Default funder | en_US |
rioxxterms.identifier.project | Default project | en_US |