Nitrogen hydrides such as NH3 and N2H+ are widely used by Galactic observers to trace the cold dense regions of the interstellar medium.
interstellar medium
Posted inAstrochemistry, Astrogeology, Comets and Asteroids, Icy Worlds, Imaging & Spectroscopy, Interstellar, Meteorites & Asteroids, Missions & Hardware, Status Report
Oxygen-bearing Organic Molecules In Comet 67P’s Dusty Coma: First Evidence For Abundant Heterocycles
The puzzling complexity of terrestrial biomolecules is driving the search for complex organic molecules in the Interstellar Medium (ISM) and serves as a motivation for many in situ studies of […]
Posted inAstrochemistry, Status Report
Identification Of Interstellar Cyanamide Towards The Hot Molecular Core G358.93-0.03 MM1
The amide-related molecules are essential for the formation of the other complex bio-molecules and an understanding of the prebiotic chemistry in the interstellar medium (ISM).
Posted inAstrochemistry, Astronomy & Telescopes, Imaging & Spectroscopy, Interstellar, Status Report
An Analysis Of The Isomers HCN And HNC In The Evolution Of High-mass Star-forming Regions
The study of molecules and their chemistry in star-forming regions is fundamental to understand the physical process occurring in such regions.
Posted inAstrochemistry, Astrogeology, Astronomy & Telescopes, Interstellar, Status Report
Astrochemical Models Of Interstellar Ices: History Matters
Ice is ubiquitous in the interstellar medium. We model the formation of the main constituents of interstellar ices, including H2O, CO2 , CO, and CH3 OH.
![Central panel: ammonia 14N/ 15N map in L1544. The contours show the total gas density at levels N(H2) = [1, 1.5, 2, 2.5] × 1022 cm−2 , obtained from Herschel SED fitting (Spezzano et al. 2017). The black circles show the three offsets (labelled with capital letters) where we compute average spectra to improve S/N. The averaged 15NH3 (1,1) lines are shown in the surrounding panels (black: observations, red: best-fit models, obtained as described in App. B). These panels are labelled in their top-left corner, whilst in the top-right corners we indicate the measured 14N/ 15N. -- astro-ph.GA](https://i0.wp.com/astrobiology.com/wp-content/uploads/2023/06/Nitrogen.png?resize=1200%2C720&ssl=1)
Posted inAstrochemistry, Astronomy & Telescopes, Imaging & Spectroscopy, Interstellar, Status Report
Nitrogen Fractionation In Ammonia And Its Insights On Nitrogen Chemistry
Context. Observations of 14N/15N in the interstellar medium are becoming more frequent thanks to the increased telescope capabilities. However, interpreting these data is still puzzling. In particular, measurements of 14N/15N […]
Posted inAstrochemistry, Astronomy & Telescopes, Imaging & Spectroscopy, Status Report
A High-resolution Spectroscopic Analysis Of Aminoacrylonitrile And An Interstellar Search Towards G+0.693
Cyanides, ranging from three carbon atoms to PAHs, and alkenyl compounds are abundant in the interstellar medium (ISM). Aminoacrylonitrile (3-Amino-2-propenenitrile, H2N-CH=CH-CN), an alkenyl cyanide, thus represents a promising candidate for […]
Posted inAstrochemistry, Astronomy & Telescopes, Biochemistry & Organic Chemistry, Press Release
First Detection Of Deuterated Methylidyne (CD) In The Interstellar Medium
While the abundance of elemental deuterium is relatively low (D/H ~ a few 1E-5), orders of magnitude higher D/H abundance ratios have been found for many interstellar molecules, enhanced by […]
Posted inAstrochemistry, Astronomy & Telescopes, Imaging & Spectroscopy, Interstellar, Status Report
Theoretical Study on the Potential Existing Forms and Microwave Rotational Spectrum of Short-Chain Fatty Acids in Interstellar Space
Several short-chain fatty acids and their corresponding potential existing hydrated forms are important molecules in interstellar space.
Posted inAstrochemistry, Astronomy & Telescopes, Atmospheres, Climate, Weather, Biochemistry & Organic Chemistry, Imaging & Spectroscopy, Interstellar, Status Report, Titan
Reaction Kinetics Of CN + Toluene And Its Implication On The Productions Of Aromatic Nitriles In The Taurus Molecular Cloud And Titan’s Atmosphere
Reactions between cyano radical and aromatic hydrocarbons are believed to be important pathways for the formation of aromatic nitriles in the interstellar medium (ISM) including those identified in the Taurus […]