143 citations · 235 across the 9 of their papers we have counts for
9 papers
Searching for helium escape and a low density atmosphere around the 120 Myr old sub-Neptune HIP94235b using CRIRES+
Ava Morrissey, George Zhou, Chelsea X. Huang +6
Atmospheric mass loss is thought to induce the bimodality in the small planet population as we observe it today. Observationally, active mass loss can be traced by excess absorptio…
Open Source High-Resolution Exoplanet Atmosphere Retrievals with POSEIDON
Ruizhe Wang, Ryan J. MacDonald, Neale P. Gibson +1
High-resolution spectroscopy (R > 25,000) has opened new opportunities to characterize exoplanet atmospheres from the ground. By resolving individual lines in planetary emission an…
New perspectives on MASCARA-1b: A combined analysis of pre- and post-eclipse emission data using CRIRES+
Swaetha Ramkumar, Neale P. Gibson, Stevanus K. Nugroho +2
We present high-resolution emission spectroscopy observations of the ultra-hot Jupiter MASCARA-1b with CRIRES+ in the K-band, covering the post-eclipse phases of its orbit. These o…
Assessing methods for telluric removal on atmospheric retrievals of high-resolution optical exoplanetary transmission spectra
Cathal Maguire, Elyar Sedaghati, Neale P. Gibson +2
Recent advancements in ultra-stable ground-based high-resolution spectrographs have propelled ground-based astronomy to the forefront of exoplanet detection and characterisation. R…
Searching for Neutral Hydrogen Escape from the 120 Myr Old Sub-Neptune HIP94235b using HST
Ava Morrissey, George Zhou, Chelsea X. Huang +9
HIP94235 b, a 120 Myr old sub-Neptune, provides us the unique opportunity to study mass loss at a pivotal stage of the system's evolution: the end of a 100 million year (Myr) old p…
High-resolution atmospheric retrievals of WASP-76b transmission spectroscopy with ESPRESSO: Monitoring limb asymmetries across multiple transits
Cathal Maguire, Neale P. Gibson, Stevanus K. Nugroho +4
Direct atmospheric retrievals of exoplanets at high-resolution have recently allowed for a more detailed characterisation of their chemistry and dynamics from the ground. By monito…
How do wavelength correlations affect transmission spectra? Application of a new fast and flexible 2D Gaussian process framework to transiting exoplanet spectroscopy
Mark Fortune, Neale P. Gibson, Daniel Foreman-Mackey +3
The use of Gaussian processes (GPs) is a common approach to account for correlated noise in exoplanet time series, particularly for transmission and emission spectroscopy. This ana…
z'-band Ground-Based Detection of the Secondary Eclipse of WASP-19b
J. R. Burton, C. A. Watson, S. P. Littlefair +4
We present the ground-based detection of the secondary eclipse of the transiting exoplanet WASP-19b. The observations were made in the Sloan z'-band using the ULTRACAM triple-beam…
Probing the haze in the atmosphere of HD 189733b with HST/WFC3 transmission spectroscopy
N. P. Gibson, S. Aigrain, F. Pont +6
We present Hubble Space Telescope near-infrared transmission spectroscopy of the transiting exoplanet HD 189733b, using Wide Field Camera 3. This consists of time-series spectra of…