Traces of 2-3 Myr old 60Fe were recently discovered in a manganese crust and in lunar samples. We have found that this signal is extended in time and is present […]
astrochemistry
Detection and Formation of Ethyl Formate In The W51 e2 Hot Molecular Core
The detection of organic molecules with increasing complexity and potential biological relevance is opening the possibility to understand the formation of the building blocks of life in the interstellar medium. […]
The Role of Ice Compositions for Snowlines and the C/N/O Ratios in Active Disks
The elemental compositions of planets define their chemistry, and could potentially be used as beacons for their formation location if the elemental gas and grain ratios of planet birth environments, […]
Pressure-dependent water absorption cross sections for exoplanets and other atmospheres
Many atmospheres (cool stars, brown dwarfs, giant planets, extrasolar planets) are predominately composed of molecular hydrogen and helium. H216O is one of the best measured molecules in extrasolar planetary atmospheres […]
A Simple and Accurate Network for Hydrogen and Carbon Chemistry in the ISM
Chemistry plays an important role in the interstellar medium (ISM), regulating heating and cooling of the gas, and determining abundances of molecular species that trace gas properties in observations. Although […]
Tracing Water Vapor and Ice during Dust Growth
The processes that govern the evolution of dust and water (in the form of vapor or ice) in protoplanetary disks are intimately connected. We have developed a model that simulates […]
Ultraviolet Star Light Plays A Role in Astrochemistry
Life exists in a myriad of wondrous forms, but if you break any organism down to its most basic parts, it’s all the same stuff: carbon atoms connected to hydrogen, […]
Discovery of an Extragalactic Hot Molecular Core
Astronomers have discovered a ‘hot molecular core,’ a cocoon of molecules surrounding a newborn massive star, for the first time outside our galaxy. The discovery, which marks the first important […]
Systematic Theoretical Study on the Interstellar Carbon Chain Molecules
In an effort to further our interest in understanding basic chemistry of interstellar molecules, we carry out here an extensive investigation of the stabilities of interstellar carbon chains; Cn, H2Cn, […]
Photochemistry and Astrochemistry: Photochemical Pathways to Interstellar Complex Organic Molecules
The interstellar medium is characterized by a rich and diverse chemistry. Many of its complex organic molecules are proposed to form through radical chemistry in icy grain mantles. Radicals form […]
