activity
20182024
most citedAn absolute sodium abundance for a cloud-free 'hot Saturn' exoplanet

162 citations · 345 across the 12 of their papers we have counts for

collaborators

11 papers

astro-ph.EP2024

Aggregation and charging of mineral cloud particles under high-energy irradiation

Nanna Bach-Møller, Christiane Helling, Uffe G. Jørgensen +1

It is known from Earth that ionizing high-energy radiation can lead to ion-induced nucleation of cloud condensation nuclei in the atmosphere. Since the amount of high-energy radiat…

astro-ph.EP2022★ 10 cited

A search for transit timing variations in the HATS-18 planetary system

John Southworth, A. J. Barker, T. C. Hinse +23

HATS-18b is a transiting planet with a large mass and a short orbital period, and is one of the best candidates for the detection of orbital decay induced by tidal effects. We pres…

astro-ph.EP2021★ 17 cited

Transmission spectroscopy with VLT FORS2: a featureless spectrum for the low-density transiting exoplanet WASP-88b

Petros Spyratos, Nikolay Nikolov, John Southworth +10

We present ground-based optical transmission spectroscopy of the low-density hot Jupiter WASP-88b covering the wavelength range 4413-8333 Å with the FORS2 spectrograph on the Very…

astro-ph.EP2020★ 31 cited

Ground-Based Transmission Spectroscopy with FORS2: A featureless optical transmission spectrum and detection of HO for the ultra-hot Jupiter WASP-103b

J. Wilson, N. P. Gibson, N. Nikolov +11

We report ground-based transmission spectroscopy of the highly irradiated and ultra-short period hot-Jupiter WASP-103b covering the wavelength range 400-600 nm using the…

astro-ph.SR2020★ 10 cited

Large-scale changes of the cloud coverage in the Indi Ba,Bb system

J. A. Hitchcock, Ch. Helling, A. Scholz +22

We present the results of 14 nights of \textit{I}-band photometric monitoring of the nearby brown dwarf binary, Indi Ba,Bb. Observations were acquired over 2 months, and total…

astro-ph.EP2020★ 18 cited

OGLE-2017-BLG-0406: Microlens Parallax Reveals Saturn-mass Planet orbiting M-dwarf Host in the Inner Galactic Disk

Yuki Hirao, David P. Bennett, Yoon-Hyun Ryu +93

We report the discovery and analysis of the planetary microlensing event OGLE-2017-BLG-0406, which was observed both from the ground and by the satellite in a solar…