activity
20192026
most citedSO2, silicate clouds, but no CH4 detected in a warm Neptune

128 citations · 826 across the 29 of their papers we have counts for

collaborators
Showing 2022Show all

12 papers · 1 filter

astro-ph.EP2022★ 10 cited

Exploring the Ability of HST WFC3 G141 to Uncover Trends in Populations of Exoplanet Atmospheres Through a Homogeneous Transmission Survey of 70 Gaseous Planets

Billy Edwards, Quentin Changeat, Angelos Tsiaras +14

We present the analysis of the atmospheres of 70 gaseous extrasolar planets via transit spectroscopy with Hubble's Wide Field Camera 3 (WFC3). For over half of these, we statistica…

astro-ph.EP2022★ 1 cited

Is LTT 1445 Ab a Hycean World or a cold Haber World? Exploring the Potential of Twinkle to Unveil Its Nature

Caprice Phillips, Ji Wang, Billy Edwards +3

We explore the prospects for Twinkle to determine the atmospheric composition of the nearby terrestrial-like planet LTT 1445 Ab, including the possibility of detecting the potentia…

astro-ph.EP2022★ 21 cited

Evidence of Long-Term Period Variations in the Exoplanet Transit Database (ETD)

Simone R. Hagey, Billy Edwards, Aaron C. Boley

We analyze a large number of citizen science data and identify eight Hot Jupiter systems that show evidence for deviations from a constant orbital period: HAT-P-19 b, HAT-P-32 b, T…

astro-ph.EP2022★ 77 cited

ExoClock Project III: 450 new exoplanet ephemerides from ground and space observations

A. Kokori, A. Tsiaras, B. Edwards +214

The ExoClock project has been created with the aim of increasing the efficiency of the Ariel mission. It will achieve this by continuously monitoring and updating the ephemerides o…

astro-ph.IM2022★ 16 cited

Twinkle -- a small satellite spectroscopy mission for the next phase of exoplanet science

Ian Stotesbury, Billy Edwards, Jean-Francois Lavigne +35

With a focus on off-the-shelf components, Twinkle is the first in a series of cost competitive small satellites managed and financed by Blue Skies Space Ltd. The satellite is based…

astro-ph.EP2022★ 2 cited

FRECKLL: Full and Reduced Exoplanet Chemical Kinetics distiLLed

Ahmed Faris Al-Refaie, Olivia Venot, Quentin Changeat +1

We introduce a new Python 1D chemical kinetic code FRECKLL (Full and Reduced Exoplanet Chemical Kinetics distiLLed) to evolve large chemical networks efficiently. FRECKLL employs `…