339 citations · 2.8k across the 52 of their papers we have counts for
53 papers
A dry Venusian interior constrained by atmospheric chemistry
Tereza Constantinou, Oliver Shorttle, Paul B. Rimmer
Venus's climatic history provides powerful constraint on the location of the inner-edge of the liquid-water habitable zone. However, two very different histories of water on Venus…
A Surface Hydrothermal Source of Nitriles and Isonitriles
Paul B. Rimmer, Oliver Shorttle
Giant impacts can generate transient hydrogen-rich atmospheres, reducing atmospheric carbon. The reduced carbon will form hazes that rain out onto the surface and can become incorp…
Astrobiological Potential of Venus Atmosphere Chemical Anomalies and Other Unexplained Cloud Properties
Janusz J. Petkowski, Sara Seager, David H. Grinspoon +7
Long-standing unexplained Venus atmosphere observations and chemical anomalies point to unknown chemistry but also leave room for the possibility of life. The unexplained observati…
Atmospheres as a Window to Rocky Exoplanet Surfaces
Xander Byrne, Oliver Shorttle, Sean Jordan +1
As the characterization of exoplanet atmospheres proceeds, providing insights into atmospheric chemistry and composition, a key question is how much deeper into the planet we might…
Prebiosignature Molecules Can Be Detected in Temperate Exoplanet Atmospheres with JWST
Alastair Claringbold, Paul Rimmer, Sarah Rugheimer +1
The search for biosignatures on exoplanets connects the fields of biology and biochemistry to astronomical observation, with the hope that we might detect evidence of active biolog…
Origins of Life on Exoplanets
Paul B. Rimmer
I show that exoplanets can be used to test origins scenarios. Origins scenarios start with certain initial conditions, proceed via a network of chemical reactions and, if successfu…
The energetic particle environment of a GJ 436 b-like planet
D. Rodgers-Lee, P. B. Rimmer, A. A. Vidotto +8
A key first step to constrain the impact of energetic particles in exoplanet atmospheres is to detect the chemical signature of ionisation due to stellar energetic particles and Ga…
Ammonia and Phosphine in the Clouds of Venus as Potentially Biological Anomalies
Carol E. Cleland, Paul B. Rimmer
We are of the opinion that several anomalies in the atmosphere of Venus provide evidence of yet-unknown processes and systems that are out of equilibrium. The investigation of thes…
Growth and Evolution of Secondary Volcanic Atmospheres: II. The Importance of Kinetics
Philippa Liggins, Sean Jordan, Paul B. Rimmer +1
Volcanism is a major and long-term source of volatile elements such as C and H to Earth's atmosphere, likely has been to Venus's atmosphere, and may be for exoplanets. Models simul…
Proposed energy-metabolisms cannot explain the atmospheric chemistry of Venus
Sean Jordan, Oliver Shorttle, Paul B. Rimmer
Life in the clouds of Venus, if present in sufficiently high abundance, must be affecting the atmospheric chemistry. It has been proposed that abundant Venusian life could obtain e…
Linking atmospheric chemistry of the hot Jupiter HD 209458b to its formation location through infrared transmission and emission spectra
Spandan Dash, Liton Majumdar, Karen Willacy +6
The elemental ratios of carbon, nitrogen, and oxygen in the atmospheres of hot Jupiters may hold clues to their formation locations in the protostellar disc. In this work, we adopt…
Reduced atmospheres of post-impact worlds: The early Earth
J. P. Itcovitz, A. S. P. Rae, R. I. Citron +4
Impacts may have had a significant effect on the atmospheric chemistry of the early Earth. Reduced phases in the impactor (e.g., metallic iron) can reduce the planet's HO inven…
Constraints on the production of phosphine by Venusian volcanoes
William Bains, Oliver Shorttle, Sukrit Ranjan +4
The initial reports of the presence of phosphine in the cloud decks of Venus has led to the suggestion that volcanism was the source of phosphine, through volcanic phosphides eject…
Production of Ammonia Makes Venusian Clouds Habitable and Explains Observed Cloud-Level Chemical Anomalies
William Bains, Janusz J. Petkowski, Paul B. Rimmer +1
The atmosphere of Venus remains mysterious, with many outstanding chemical connundra. These include: the unexpected presence of ~10 ppm O2 in the cloud layers; an unknown compositi…
Venusian phosphine: a 'Wow!' signal in chemistry?
William Bains, Janusz J. Petkowski, Sara Seager +6
The potential detection of ppb levels phosphine (PH3) in the clouds of Venus through millimeter-wavelength astronomical observations is extremely surprising as PH3 is an unexpected…
Starting Life and Searching for Life on Rocky Planets
Paul B Rimmer, Sukrit Ranjan, Sarah Rugheimer
The study of origins of life on Earth and the search for life on other planets are closely linked. Prebiotic chemical scenarios can help prioritize planets as targets for the searc…
Photochemistry of Venus-Like Planets Orbiting K- and M-Dwarf Stars
Sean Jordan, Paul B. Rimmer, Oliver Shorttle +1
Compared to the diversity seen in exoplanets, Venus is a veritable astrophysical twin of the Earth, however its global cloud layer truncates features in transmission spectroscopy,…
Stellar versus Galactic: The intensity of energetic particles at the evolving Earth and young exoplanets
D. Rodgers-Lee, A. A. Vidotto, A. M. Taylor +2
Energetic particles may have been important for the origin of life on Earth by driving the formation of prebiotic molecules. We calculate the intensity of energetic particles, in t…
Low levels of sulphur dioxide contamination of Venusian phosphine spectra
Jane S. Greaves, Paul B. Rimmer, Anita M. S. Richards +7
New analysis is presented of the 1.1 mm wavelength absorption lines in Venus' atmosphere that suggested the presence of phosphine. We retrieve a sulphur dioxide observation from th…
Detectable Abundance of Cyanoacetylene (HCN) Predicted on Reduced Nitrogen-Rich Super-Earth Atmospheres
Paul B. Rimmer, Liton Majumdar, Akshay Priyadarshi +2
We predict that cyanoacetylene (HCN) is produced photochemically in the atmosphere of GJ 1132 b in abundances detectable by the James Webb Space Telescope (JWST), assuming that…
Recovery of Spectra of Phosphine in Venus' Clouds
Jane S. Greaves, Anita M. S. Richards, William Bains +7
We recover PH3 in the atmosphere of Venus in data taken with ALMA, using three different calibration methods. The whole-planet signal is recovered with 5.4σ confidence using Venus…
Ariel: Enabling planetary science across light-years
Giovanna Tinetti, Paul Eccleston, Carole Haswell +313
Ariel, the Atmospheric Remote-sensing Infrared Exoplanet Large-survey, was adopted as the fourth medium-class mission in ESA's Cosmic Vision programme to be launched in 2029. Durin…
Detection of an Atmosphere on a Rocky Exoplanet
Mark R. Swain, Raissa Estrela, Gael M. Roudier +7
We report the detection of an atmosphere on a rocky exoplanet, GJ 1132 b, which is similar to Earth in terms of size and density. The atmospheric transmission spectrum was detected…
Hydroxide salts in the clouds of Venus: their effect on the sulfur cycle and cloud droplet pH
Paul B. Rimmer, Sean Jordan, Tereza Constantinou +4
The depletion of SO and HO in and above the clouds of Venus (45 -- 65 km) cannot be explained by known gas-phase chemistry and the observed composition of the atmosphere. W…