The aim of this study is to investigate the chemical evolution from the prestellar phase to the formation of the disk, and to determine the impact that the chemical composition […]
astrochemistry
Posted inAstrochemistry, Press Release
Massive Stars Are Factories for Ingredients to Life
NASA’s telescope on an airplane, the Stratospheric Observatory for Infrared Astronomy, has provided a new glimpse of the chemistry in the inner region surrounding massive young stars where future planets […]
Posted inAstrochemistry, Press Release
Astrochemistry And Compositions Of Planetary Systems
Planets form and obtain their compositions in disks of gas and dust around young stars. The chemical compositions of these planet-forming disks regulate all aspects of planetary compositions from bulk […]
Posted inAstrochemistry, Press Release
Sustained Oscillations In Interstellar Chemistry Models
Non-linear behavior in interstellar chemical models has been recognized for 25 years now. Different mechanisms account for the possibility of multiple fixed-points at steady state, characterized by the ionization degree […]
Posted inAstrochemistry, Comets and Asteroids, Press Release
Infrared Detection Of Aliphatic Organics On A Cometary Nucleus
The ESA Rosetta mission has acquired unprecedented measurements of comet 67/P-Churyumov-Gerasimenko (hereafter 67P) nucleus surface, whose composition, as determined by in situ and remote sensing instruments including VIRTIS (Visible, InfraRed […]
Posted inAstrochemistry, Press Release
Organic Matter In Interstellar Dust Lost At The Approach To The Heliosphere: Exothermic Chemical Reactions Of Free Radicals Ignited By The Sun
Aims. We tackle the conundrums of organic materials missing from interstellar dust when measured inside the Solar System, while undoubtedly existing in the local interstellar cloud (LIC), which surrounds the […]
Posted inAstrochemistry, Press Release
Pair Of Massive Baby Stars Swaddled In Salty Water Vapor
Using the Atacama Large Millimeter/submillimeter Array (ALMA), astronomers spotted a pair of massive baby stars growing in salty cosmic soup. Each star is shrouded by a gaseous disk which includes […]
Posted inAstrochemistry, Press Release
Water Is Trapped In Star Dust
The matter between the stars in a galaxy – called the interstellar medium – consists not only of gas, but also of a great deal of dust. At some point […]
Posted inAstrochemistry, Press Release
Formation Of Interstellar Complex Polycyclic Aromatic Hydrocarbons: Insights From Molecular Dynamics Simulations Of Dehydrogenated Benzene
Small organic molecules are thought to provide building blocks for the formation of complex interstellar polycyclic aromatic hydrocarbons (PAHs). However, the underlying chemical mechanisms remain unclear, particularly concerning the role […]
Posted inAstrochemistry, Press Release
Study Pinpoints Process That Might Have Led To First Organic Molecules
New research led by the American Museum of Natural History and funded by NASA identifies a process that might have been key in producing the first organic molecules on Earth […]