The interstellar medium contains dust and gas, in which at high densities and cold conditions molecules can proliferate. Interstellar Complex Organic Molecules (iCOMs) are C-bearing species that contain at least […]
astro-ph.GA]
Posted inAstrochemistry
Predicting Binding Energies Of Astrochemically Relevant Molecules Via Machine Learning
The behaviour of molecules in space is to a large extent governed by where they freeze out or sublimate. The molecular binding energy is thus an important parameter for many […]
Posted inAstrochemistry
Millimeter Wave Sspectrum And Search For Vinyl Isocyanate Toward Sgr B2(N) With ALMA
The interstellar detections of isocyanic acid, methyl isocyanate, and very recently also ethyl isocyanate, open the question of the possible detection of vinyl isocyanate in the interstellar medium. The aim […]
Posted inAstrochemistry
Detecting Chiral Asymmetry In The Interstellar Medium Using Propylene-oxide
Life is distinctly homochiral. The origins of this homochirality are under active debate. Recently, propylene-oxide has been detected in the gas-phase interstellar medium (ISM) (McGuire et al. 2016). The enantiomeric […]
Posted inAstrochemistry
New Detections Of Phosphorus Molecules Towards Solar-type Protostars
Phosphorus is a necessary element for life on Earth, but at present we have limited constraints on its chemistry in star- and planet-forming regions: to date, phosphorus carriers have only […]
Posted inAstrochemistry
Laboratory Experiments On The Radiation Astrochemistry Of Water Ice Phases
Water (H2O) ice is ubiquitous component of the universe, having been detected in a variety of interstellar and Solar System environments where radiation plays an important role in its physico-chemical […]
Posted inAstrochemistry
Resolving Desorption Of Complex Organic Molecules In A Hot Core: Transition From Non-thermal To Thermal Desorption Or Two-step Thermal Desorption?
Using the high angular resolution provided by the ALMA interferometre we want to resolve the COM emission in the hot molecular core Sagittarius B2(N1) and thereby shed light on the […]
Posted inAstrochemistry
Formation Of The Simplest Amide In Molecular Clouds: Formamide (NH2CHO) And Its Derivatives In H2O-rich And CO-rich Interstellar Ice Analogs Upon VUV Irradiation
The astronomical detection of formamide (NH2CHO) toward various star-forming regions and in cometary material implies that the simplest amide might have an early origin in dark molecular clouds at low […]
Posted inAstrochemistry
Radical Addition and H Abstraction Reactions in C2H2, C2H4 and C2H6: A Gateway for Ethyl and Vinyl Bearing Molecules in the Interstellar Medium
Recent interstellar detections include a significant number of molecules containing vinyl (C2H3) and ethyl (C2H5) groups in their structure. For several of these molecules, there is not a clear experimental […]
Posted inAstrochemistry
Molecular Precursors Of The RNA-world In Space: New Nitriles In The G+0.693-0.027 Molecular Cloud
Nitriles play a key role as molecular precursors in prebiotic experiments based on the RNA-world scenario for the origin of life. These chemical compounds could have been partially delivered to […]