It is generally agreed that hydrogenation reactions dominate chemistry on grain surfaces in cold, dense molecular cores, saturating the molecules present in ice mantles. Aims. We present a study of […]
astrochemistry
Posted inAstrochemistry
In-situ Measurements of the Radiation Stability of Amino Acids at 15-140 K
We present new kinetics data on the radiolytic destruction of amino acids measured in situ with infrared spectroscopy. Samples were irradiated at 15, 100, and 140 K with 0.8-MeV protons, […]
Posted inAstrochemistry, Mars
Glycine's Radiolytic Destruction in Ices: First In-Situ Laboratory Measurements for Mars
We report new laboratory studies of the radiation-induced destruction of glycine-containing ices for a range of temperatures and compositions that allow extrapolation to Martian conditions. In-situ infrared spectroscopy was used […]
Posted inAstrochemistry, Meteorites & Asteroids, Press Release
Organic Matter in the Enstatite Chondrite Sahara 97096 (EH3)
The insoluble organic matter (IOM) of an unequilibrated enstatite chondrite Sahara (SAH) 97096 has been investigated using a battery of analytical techniques. As the enstatite chondrites are thought to have […]
Posted inAstrochemistry
Modeling Complex Organic Molecules in Dense Regions
Recent observations have revealed the existence of Complex Organic Molecules (COMs) in cold dense cores and prestellar cores. The presence of these molecules in such cold conditions is not well […]
Posted inAstrochemistry
Infrared Spectra and Chemical Abundance of Methyl Propionate in Icy Astrochemical Conditions
We carried out an experiment in order to obtain the InfraRed (IR) spectra of methyl propionate (CH3CH2COOCH3) in astrochemical conditions and present the IR spectra for future identification of this […]
Posted inAstrochemistry
Search for Methylamine in High Mass Hot Cores
We aim to detect methylamine, CH3NH2, in a variety of hot cores and use it as a test for the importance of photon-induced chemistry in ice mantles and mobility of […]
Posted inAstrochemistry
Complex organic molecules in protostellar environments in the SKA era
Molecular complexity builds up at each step of the Sun-like star formation process, starting from simple molecules and ending up in large polyatomic species. Complex organic molecules (COMs; such as […]
Posted inAstrochemistry
Astrochemistry at Work in the L1157-B1 Shock: Acetaldehyde Formation
The formation of complex organic molecules (COMs) in protostellar environments is a hotly debated topic. In particular, the relative importance of the gas phase processes as compared to a direct […]
Posted inAstrochemistry, Meteorites & Asteroids
New Insight Into Solar System Transition Disk Phase by Unusual Meteorite Isheyevo
Many aspects of planet formation are controlled by the amount of gas remaining in the natal protoplanetary disk (PPDs). Infrared observations show that PPDs undergo a transition stage at several […]