Cyril Szopa

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Volatile, isotope, and organic analysis of martian fines with the Mars Curiosity rover.

Laurie A. Leshin, Paul R Mahaffy, +31 authors John P. Grotzinger
Science
2013

Samples from the Rocknest aeolian deposit were heated to ~835°C under helium flow and evolved gases analyzed by Curiosity's Sample Analysis at Mars instrument suite. H2O, SO2, CO2, and O2 were the… (More)

Volatile and Organic Compositions of Sedimentary Rocks in Yellowknife Bay, Gale Crater, Mars

Doug W Ming, P. Douglas Archer, +54 authors R A Yingst
Science
2014

H2O, CO2, SO2, O2, H2, H2S, HCl, chlorinated hydrocarbons, NO, and other trace gases were evolved during pyrolysis of two mudstone samples acquired by the Curiosity rover at Yellowknife Bay within… (More)

The Sample Analysis at Mars Investigation and Instrument Suite

Paul R Mahaffy, Christopher R. Webster, +77 authors Erik Mumm
2012

The Sample Analysis at Mars (SAM) investigation of the Mars Science Laboratory (MSL) addresses the chemical and isotopic composition of the atmosphere and volatiles extracted from solid samples. The… (More)

Investigating the photostability of carboxylic acids exposed to Mars surface ultraviolet radiation conditions.

Fabien Stalport, Patrice J Coll, Cyril Szopa, Hervé Cottin, François Raulin
Astrobiology
2009

The detection and identification of organic molecules on Mars are of primary importance to establish the existence of a possible ancient prebiotic chemistry or even biological activity. The harsh… (More)

Evidence for perchlorates and the origin of chlorinated hydrocarbons detected by SAM at the Rocknest aeolian deposit in Gale Crater

Daniel P Glavin, Caroline Freissinet, +25 authors Paul R Mahaffy
2013

detected by SAM at the Rocknest aeolian deposit in Gale Crater Daniel P. Glavin, Caroline Freissinet, Kristen E. Miller, Jennifer L. Eigenbrode, Anna E. Brunner, Arnaud Buch, Brad Sutter, P. Douglas… (More)

Heterogeneous solid/gas chemistry of organic compounds related to comets, meteorites, Titan, and Mars: Laboratory and in lower Earth orbit experiments

Hervé Cottin, Patrice J Coll, +13 authors A. Brack
2008

To understand the evolution of organic molecules involved in extraterrestrial environments and with exobiological implications, many experimental programs in the laboratory are devoted to… (More)

Titan ’ s atmosphere : an optimal gas mixture for aerosol production ?

E. Sciamma-O’Brien, Nathalie Carrasco, Cyril Szopa, Arnaud Buch, Guy Cernogora
2009

The intense photochemistry that takes place in Titan’s dense atmosphere, mainly composed of N2 and CH4, leads to the production of complex organic molecules and to the subsequent formation of… (More)

Isotope ratios of H, C, and O in CO2 and H2O of the martian atmosphere.

Christopher R. Webster, Paul R Mahaffy, +443 authors María-Paz Zorzano Mier
Science
2013

Stable isotope ratios of H, C, and O are powerful indicators of a wide variety of planetary geophysical processes, and for Mars they reveal the record of loss of its atmosphere and subsequent… (More)

New insights into the structure and chemistry of Titan ’ s tholins via 13 C and 15 N solid state nuclear magnetic resonance spectroscopy

Sylvie Derenne, Christian Coelho, +7 authors Christian Bonhomme
2012

Tholins are complex C,N-containing organic compounds produced in the laboratory. They are considered to provide materials that are analogous to those responsible for the haze observed in Titan’s… (More)

The influence of mineralogy on recovering organic acids from Mars analogue materials using the ‘ ‘ one-pot ’ ’ derivatization experiment on the Sample Analysis at Mars ( SAM ) instrument suite

Fabien Stalport, David Glavin, +8 authors Paul R Mahaffy
2013

The search for complex organic molecules on Mars, including important biomolecules such as amino acids and carboxylic acids, will require a chemical extraction and a derivatization step to transform… (More)

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