Results tagged “Astrochemistry”

Fullerenes have been recently detected in various circumstellar and interstellar environments, raising the question of their formation pathway.

Most models of volatile delivery to accreting terrestrial planets assume that the carriers for water are similar in water content to the carbonaceous chondrites in our Solar System.

A research team led by Shuro Takano at NAOJ and Taku Nakajima at Nagoya University observed the spiral galaxy M77 with ALMA and discovered that organic molecules are concentrated in a region surrounding a supermassive black hole at its center.

The high abundances of Complex Organic Molecules (COMs) with respect to methanol, the most abundant COM, detected towards low-mass protostars, tend to be underpredicted by astrochemical models.

We studied the relation between the chemical composition and the type of dust present in a group of 20 Galactic planetary nebulae (PNe) that have high quality optical and infrared spectra.

Formamide (NH2CHO) has been proposed as a pre-biotic precursor with a key role in the emergence of life on Earth. While this molecule has been observed in space, most of its detections correspond to high-mass star-forming regions.

Understanding the collisional properties of ice is important for understanding both the early stages of planet formation and the evolution of planetary ring systems.

Comparison of their chemical compositions shows, to first order, a good agreement between the cometary and interstellar abundances.

It is generally agreed that hydrogenation reactions dominate chemistry on grain surfaces in cold, dense molecular cores, saturating the molecules present in ice mantles.

We present new kinetics data on the radiolytic destruction of amino acids measured in situ with infrared spectroscopy.

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.

The insoluble organic matter (IOM) of an unequilibrated enstatite chondrite Sahara (SAH) 97096 has been investigated using a battery of analytical techniques.

Recent observations have revealed the existence of Complex Organic Molecules (COMs) in cold dense cores and prestellar cores.

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 molecule in the InterStellar Medium (ISM).

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 radicals.

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.

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 formation of COMs on the dust grain surfaces is so far unknown.

Many aspects of planet formation are controlled by the amount of gas remaining in the natal protoplanetary disk (PPDs).

We study the spatial distribution and chemistry of small hydrocarbons in the Orion Bar PDR.

We present fundamental stellar parameters and chemical abundances for a sample of 86 evolved stars with planets and for a control sample of 137 stars without planets.

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