Global analysis of the TRAPPIST Ultra-Cool Dwarf Transit Survey

  title={Global analysis of the TRAPPIST Ultra-Cool Dwarf Transit Survey},
  author={Florian Lienhard and Didier Queloz and Micha{\"e}l Gillon and Artem Burdanov and Laetitia Delrez and Elsa Ducrot and W. J. Handley and Emmanuel Jehin and C. A. Murray and Amaury H. M. J. Triaud and Edward Gillen and Annelies Mortier and Benjamin V. Rackham},
  journal={Monthly Notices of the Royal Astronomical Society},
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… 

SPECULOOS: Ultracool dwarf transit survey

One of the most promising avenues for the detailed study of temperate Earth-sized exoplanets is the detection of such planets in transit in front of stars small and nearby enough to make possible

Development of the SPECULOOS exoplanet search project

The current status of SPECULOOS is reviewed, its first results, the plans for its development, and its connection to the Transiting Exoplanet Survey Satellite (TESS) and JWST are reviewed.

Planet Hunters TESS III: two transiting planets around the bright G dwarf HD 152843

We report on the discovery and validation of a two-planet system around a bright (V = 8.85 mag) early G dwarf (1.43 R , 1.15 M , TOI 2319) using data from NASA’s Transiting Exoplanet Survey Satellite

TRAPPIST-1h as an Exo-Titan. I. The Role of Assumptions about Atmospheric Parameters in Understanding an Exoplanet Atmosphere

The TRAPPIST-1 system is home to at least seven terrestrial planets and is a target of interest for future James Webb Space Telescope (JWST) observations. Additionally, these planets will be of



Early 2017 observations of TRAPPIST-1 with Spitzer

The recently detected TRAPPIST-1 planetary system, with its seven planets transiting a nearby ultracool dwarf star, offers the first opportunity to perform comparative exoplanetology of temperate

TRAPPIST-1: Global results of the Spitzer Exploration Science Program Red Worlds

With more than 1000 hours of observation from Feb 2016 to Oct 2019, the Spitzer Exploration Program Red Worlds (ID: 13067, 13175 and 14223) exclusively targeted TRAPPIST-1, a nearby (12pc) ultracool

TRAPPIST-UCDTS: A prototype search for habitable planets transiting ultra-cool stars

The ∼1000 nearest ultra-cool stars (spectral type M6 and latter) represent a unique opportunity for the search for life outside solar system. Due to their small luminosity, their habitable zone is


In the effort to characterize the masses, radii, and atmospheres of potentially habitable exoplanets, there is an urgent need to find examples of such planets transiting nearby M dwarfs. The MEarth

Photometry and performance of SPECULOOS-South

SPECULOOS-South, an observatory composed of four independent 1-m robotic telescopes, located at ESO Paranal, Chile, started scientific operation in 2019 January. This Southern hemisphere facility

Evidence for Spin–Orbit Alignment in the TRAPPIST-1 System

In an effort to measure the Rossiter–McLaughlin effect for the TRAPPIST-1 system, we performed high-resolution spectroscopy during transits of planets e, f, and b. The spectra were obtained with the

TRAPPIST: TRAnsiting Planets and PlanetesImals Small Telescope

TRAPPIST is a 60-cm robotic telescope that has been installed in June 2010 at the ESO La Silla Observatory [1]. Operated from Liège (Belgium) it is devoted to the detection and characterisation of

SPECULOOS exoplanet search and its prototype on TRAPPIST

One of the most significant goals of modern science is establishing whether life exists around other suns. The most direct path towards its achievement is the detection and atmospheric

Transiting Exoplanet Survey Satellite

Abstract. The Transiting Exoplanet Survey Satellite (TESS) will search for planets transiting bright and nearby stars. TESS has been selected by NASA for launch in 2017 as an Astrophysics Explorer

Seven temperate terrestrial planets around the nearby ultracool dwarf star TRAPPIST-1

The observations reveal that at least seven planets with sizes and masses similar to those of Earth revolve around TRAPPIST-1, and the six inner planets form a near-resonant chain, such that their orbital periods are near-ratios of small integers.