Search Publications

The diverse chemistry of protoplanetary disks as revealed by JWST

Kamp, I.; Henning, Th.; Nazari, P. +14 more

Early results from JWST-MIRI programs on low- and high-mass protostars and disks show significant diversity in their mid-infrared spectra, most notably for CO2, H2O and C2H2. Benzene is detected in disks around very low mass stars. Early results from the James Webb Space Telescope-Mid-InfraRed Instrument (JWST-MIRI) guaranteed time programs on pro…

The chemical inventory of the inner regions of planet-forming disks – the JWST/MINDS program

Henning, Thomas; Waters, L. B. F. M.; Güdel, Manuel +40 more

The Mid-InfraRed Instrument/Medium-Resolution Spectrometer (MIRI/MRS) on board the James Webb Space Telescope reveals the rich and diverse chemistry in the planet forming regions around Sun-like and low-mass stars. The understanding of planet formation has changed recently, embracing the new idea of pebble accretion. This means that the influx of …

Untangling the chemical evolution of Titan's atmosphere and surface-from homogeneous to heterogeneous chemistry

Kaiser, Ralf I.; Maksyutenko, Pavlo; Ennis, Courtney +6 more

Formation of NH3 and CH2NH in Titan's upper atmosphere

Smith, M. A.; Lavvas, P.; Vuitton, V. +4 more

Negative ions at Titan and Enceladus: recent results

Johnson, Robert E.; Coates, Andrew J.; Waite, J. Hunter +7 more

Formation of nitriles and imines in the atmosphere of Titan: combined crossed-beam and theoretical studies on the reaction dynamics of excited nitrogen atoms N(2D) with ethane

Balucani, Nadia; Leonori, Francesca; Petrucci, Raffaele +4 more

Upper limits for undetected trace species in the stratosphere of Titan

Bézard, Bruno; Vinatier, Sandrine; Nixon, Conor A. +15 more

In this paper we describe a first quantitative search for several molecules in Titan's stratosphere in Cassini CIRS infrared spectra. These are: ammonia (NH3), methanol (CH3OH), formaldehyde (H2CO), and acetonitrile (CH3CN), all of which are predicted by photochemical models but only the last of which observed, and not in the infrared. We find non…

Mapping Titan's HCN in the far infra-red: implications for photochemistry

Irwin, P. G. J.; Teanby, N. A.; de Kok, R. +1 more

Chemical origins of the Mars ultraviolet dayglow

Slanger, Tom G.; Sharpee, Brian D.; Fox, Jane L. +1 more

Photochemical modeling of Titan atmosphere at the ``10 percent uncertainty horizon''

Carrasco, Nathalie; Hébrard, Eric; Dobrijevic, Michel +2 more