14.2k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Centre National de la Recherche ScientifiqueFR1.2k papers
- California Institute of TechnologyUS1k papers
- Commissariat à l'Énergie Atomique et aux Énergies AlternativesFR744 papers
- University of CambridgeGB676 papers
- University College LondonGB641 papers
- University of TorontoCA603 papers
- National Institute for AstrophysicsIT595 papers
- Sapienza University of RomeIT578 papers
- Stanford UniversityUS550 papers
- European Southern ObservatoryCL540 papers
- Jet Propulsion LaboratoryUS533 papers
- University of ManchesterGB523 papers
79 papers · 1 filter
Ionic Liquid Biospheres
Sara Seager, William Bains, Iaroslav Iakubivskyi +4
Liquid is a fundamental requirement for life as we understand it, but whether that liquid has to be water is not known. We propose the hypothesis that ionic liquids (ILs) and deep…
Exploring Synergies between Twinkle and Ariel: a Pilot Study
Andrea Bocchieri, Luke Booth, Lorenzo V. Mugnai
Launching in 2027 and 2029, respectively, Twinkle and Ariel will conduct the first large-scale homogeneous spectroscopic surveys of the atmospheres of hundreds of diverse exoplanet…
Warm, water-depleted rocky exoplanets with surface ionic liquids: A proposed class for planetary habitability
Rachana Agrawal, Sara Seager, Iaroslav Iakubivskyi +6
The discovery of thousands of exoplanets and the emergence of telescopes capable of exoplanet atmospheric characterization have intensified the search for habitable worlds. Due to…
The Diversity of Exoplanetary Environments and the Search for Signs of Life Beyond Earth
Sara Seager, Janusz J. Petkowski, William Bains
Thousands of exoplanets orbit nearby stars, showcasing a remarkable diversity in mass, size, and orbits. With the James Webb Space Telescope now operational, we are observing exopl…
Prospects for Detecting Signs of Life on Exoplanets in the JWST Era
Sara Seager, Luis Welbanks, Lucas Ellerbroek +2
The search for signs of life in the Universe has entered a new phase with the advent of the James Webb Space Telescope (JWST). Detecting biosignature gases via exoplanet atmosphere…
Limits to dynamic range in GHz-THz single-dish planetary spectra
J S Greaves
When bright solar-system objects are observed by GHz-THz regime telescopes, off-axis signals bounce around locally and re-enter the signal path with a time delay, causing sinusoida…
The Discovery and Evolution of a Possible New Epoch of Cometary Activity by the Centaur (2060) Chiron
Matthew M. Dobson, Megan E. Schwamb, Alan Fitzsimmons +24
Centaurs are small Solar System objects on chaotic orbits in the giant planet region, forming an evolutionary continuum with the Kuiper belt objects and Jupiter-family comets. Some…
Comparing transit spectroscopy pipelines at the catalogue level: evidence for systematic differences
Lorenzo V. Mugnai, Mark R. Swain, Raissa Estrela +1
The challenge of inconsistent results from different data pipelines, even when starting from identical data, is a recognized concern in exoplanetary science. As we transition into…
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…
ARES VI: Viability of one-dimensional retrieval models for transmission spectroscopy characterization of exo-atmospheres in the era of JWST and Ariel
Adam Yassin Jaziri, William Pluriel, Andrea Bocchieri +10
Observed exoplanet transit spectra are usually retrieved using 1D models to determine atmospheric composition while planetary atmospheres are 3D. With the JWST and future space tel…
Stability of 20 Biogenic Amino Acids in Concentrated Sulfuric Acid: Implications for the Habitability of Venus' Clouds
Maxwell D. Seager, Sara Seager, William Bains +1
Scientists have long speculated about the potential habitability of Venus, not at the 700K surface, but in the cloud layers located at 48-60 km altitudes, where temperatures match…
Alternative solvents for life: framework for evaluation, current status and future research
William Bains, Janusz J. Petkowski, Sara Seager
Life is a complex, dynamic chemical system that requires a dense fluid solvent in which to take place. A common assumption is that the most likely solvent for life is liquid water,…
Ejecta Evolution Following a Planned Impact into an Asteroid: The First Five Weeks
Theodore Kareta, Cristina Thomas, Jian-Yang Li +85
The impact of the DART spacecraft into Dimorphos, moon of the asteroid Didymos, changed Dimorphos' orbit substantially, largely from the ejection of material. We present results fr…
Fully fluorinated non-carbon compounds NF3 and SF6 as ideal technosignature gases
Sara Seager, Janusz J. Petkowski, Jingcheng Huang +3
Waste gas products from technological civilizations may accumulate in an exoplanet atmosphere to detectable levels. We propose nitrogen trifluoride (NF3) and sulfur hexafluoride (S…
An extended low-density atmosphere around the Jupiter-sized planet WASP-193 b
Khalid Barkaoui, Francisco J. Pozuelos, Coel Hellier +32
Gas giants transiting bright nearby stars provide crucial insights into planetary system formation and evolution mechanisms. Most of these planets exhibit certain average character…
Venus' Atmospheric Chemistry and Cloud Characteristics Are Compatible with Venusian Life
William Bains, Janusz J. Petkowski, Sara Seager
Venus is Earth's sister planet, with similar mass and density but an uninhabitably hot surface, an atmosphere with a water activity 50-100 times lower than anywhere on Earths' surf…
Splitting of Long-Period Comet C/2018 F4 (PANSTARRS)
Man-To Hui, Michael S. P. Kelley, Denise Hung +4
Long-period comet C/2018 F4 (PANSTARRS) was observed to show duplicity of its inner region in 2020 September, suggestive of a splitting event. We here present analyses of our obser…
Large Uncertainties in the Thermodynamics of Phosphorus (III) Oxide (PO) Have Significant Implications for Phosphorus Species in Planetary Atmospheres
William Bains, Matthew A. Pasek, Sukrit Ranjan +3
Phosphorus (III) oxide (PO) has been suggested to be a major component of the gas phase phosphorus chemistry in the atmospheres of gas giant planets and of Venus. However,…
Orbital Period Change of Dimorphos Due to the DART Kinetic Impact
Cristina A. Thomas, Shantanu P. Naidu, Peter Scheirich +46
The Double Asteroid Redirection Test (DART) spacecraft successfully performed the first test of a kinetic impactor for asteroid deflection by impacting Dimorphos, the secondary of…
Recovering Phosphine in Venus' Atmosphere from SOFIA Observations
Jane S. Greaves, Janusz J. Petkowski, Anita M. S. Richards +3
Searches for phosphine in Venus' atmosphere have sparked a debate. Cordiner et al. 2022 analyse spectra from the Stratospheric Observatory For Infrared Astronomy (SOFIA) and infer…
A LOOK at Outbursts of Comet C/2014 UN (Bernardinelli-Bernstein) Near 20 au
Michael S. P. Kelley, Rosita Kokotanekova, Carrie E. Holt +10
Cometary activity may be driven by ices with very low sublimation temperatures, such as carbon monoxide ice, which can sublimate at distances well beyond 20 au. This point is empha…
Refinement of the convex shape model and tumbling spin state of (99942) Apophis using the 2020-2021 apparition data
H. -J. Lee, M. -J. Kim, A. Marciniak +30
Context. The close approach of the near-Earth asteroid (99942) Apophis to Earth in 2029 will provide a unique opportunity to examine how the physical properties of the asteroid cou…
Asteroid Measurements at Millimeter Wavelengths with the South Pole Telescope
P. M. Chichura, A. Foster, C. Patel +141
We present the first measurements of asteroids in millimeter wavelength (mm) data from the South Pole Telescope (SPT), which is used primarily to study the cosmic microwave backgro…
The DRAKE mission: finding the frequency of life in the Cosmos
Subhajit Sarkar
In the search for life in the Universe, exoplanets represent numerous natural experiments in planet formation, evolution, and the emergence of life. This raises the fascinating pro…