Titan tholins: simulating Titan organic chemistry in the Cassini-Huygens era

ML Cable, SM Hörst, R Hodyss… - Chemical …, 2012 - ACS Publications
Titan is the gem of the Saturnian system, an icy world laden with organics and shrouded in
an auburn haze. Due in large part to the discoveries of the Cassini-Huygens mission to the …

Earth as a tool for astrobiology—a European perspective

Z Martins, H Cottin, JM Kotler, N Carrasco… - Space Science …, 2017 - Springer
Scientists use the Earth as a tool for astrobiology by analyzing planetary field analogues (ie
terrestrial samples and field sites that resemble planetary bodies in our Solar System). In …

Formation of amino acids and nucleotide bases in a Titan atmosphere simulation experiment

SM Hörst, RV Yelle, A Buch, N Carrasco… - Astrobiology, 2012 - liebertpub.com
The discovery of large (> 100 u) molecules in Titan's upper atmosphere has heightened
astrobiological interest in this unique satellite. In particular, complex organic aerosols …

Photochemical haze formation in the atmospheres of super-Earths and mini-Neptunes

C He, SM Hörst, NK Lewis, X Yu, JI Moses… - The Astronomical …, 2018 - iopscience.iop.org
UV radiation can induce photochemical processes in exoplanet atmospheres and produce
haze particles. Recent observations suggest that haze and/or cloud layers could be present …

New experimental constraints on the composition and structure of tholins

E Quirico, G Montagnac, V Lees, PF McMillan, C Szopa… - Icarus, 2008 - Elsevier
Powdered samples of carbon–nitrogen-hydrogen “tholins” that mimic Titan's atmosphere
aerosols were produced under levitation conditions in the laboratory with a dusty plasma …

Optical constants of exoplanet haze analogs from 0.3 to 30 µm: Comparative sensitivity between spectrophotometry and ellipsometry

T Drant, E Garcia-Caurel, Z Perrin… - Astronomy & …, 2024 - aanda.org
We report new optical constants (refractive index, n, and extinction coefficient, k) for
exoplanet haze analogs from 0.3 to 30 µm. The samples were produced in a simulated N 2 …

Sublimation of water ice mixed with silicates and tholins: Evolution of surface texture and reflectance spectra, with implications for comets

O Poch, A Pommerol, B Jost, N Carrasco, C Szopa… - Icarus, 2016 - Elsevier
The surfaces of many objects in the Solar System comprise substantial quantities of water
ice sometimes mixed with minerals and/or organic molecules. The sublimation of the ice …

Titan's atmosphere: An optimal gas mixture for aerosol production?

E Sciamma-O'Brien, N Carrasco, C Szopa, A Buch… - Icarus, 2010 - Elsevier
Here we present the first quantitative study of the gas to solid particle conversion in a Radio
Frequency dusty plasma experiment simulating the complex atmospheric reactivity on Titan …

Chemical characterization of Titan's tholins: solubility, morphology and molecular structure revisited

N Carrasco, I Schmitz-Afonso, JY Bonnet… - The Journal of …, 2009 - ACS Publications
In this work Titan's atmospheric chemistry is simulated using a capacitively coupled plasma
radio frequency discharge in a N2− CH4 stationnary flux. Samples of Titan's tholins are …

Nitrile gas chemistry in Titan's atmosphere

T Gautier, N Carrasco, A Buch, C Szopa… - Icarus, 2011 - Elsevier
This work presents the first study of the gaseous products resulting from the partial
dissociation of methane and nitrogen in the PAMPRE experimental setup simulating Titan's …