Results 1 to 10 of about 302,506 (166)
Complex organic molecules in strongly UV-irradiated gas. [PDF]
Astron Astrophys, 2017 We investigate the presence of COMs in strongly UV-irradiated interstellar molecular gas. We have carried out a complete millimetre line survey using the IRAM30m telescope towards the edge of the Orion Bar photodissociation region (PDR), close to the H2 dissociation front, a position irradiated by a very intense far-UV (FUV) radiation field.
Cuadrado S +5 more
europepmc +8 more sources
A High-level Ab Initio Study of the Destruction of Methanimine under UV Radiation
The Astrophysical Journal, 2023 The photodecomposition of methanimine (CH _2 NH) in the interstellar medium through several possible pathways is investigated by means of high-level multireference configuration interaction ab initio calculations.
A. Bouallagui +4 more
doaj +1 more source
The SKA as a Prebiotic Molecule Detector
Frontiers in Astronomy and Space Sciences, 2022 One of the theories for the origin of life proposes that a significant fraction of prebiotic material could have arrived to Earth from outer space between 4.1 and 3.8 billion years ago.
Izaskun Jiménez-Serra +8 more
doaj +1 more source
Collisional excitation of complex organic molecules [PDF]
Proceedings of the International Astronomical Union, 2008 AbstractA major difficulty in modelling the infrared and (sub)millimeter spectra of gas-phase complex organic molecules is the lack of state-to-state collisional rate coefficients. Accurate quantum or classical scattering calculations for large polyatomic species are indeed computationally highly challenging, particularly when both rotation and low ...
Alexandre Faure +3 more
openaire +1 more source
Complex organic molecules in protoplanetary disks [PDF]
Astronomy & Astrophysics, 2014 (Abridged) Protoplanetary disks are vital objects in star and planet formation, possessing all the material which may form a planetary system orbiting the new star. We investigate the synthesis of complex organic molecules (COMs) in disks to constrain the achievable chemical complexity and predict species and transitions which may be observable with ...
Walsh, C +7 more
openaire +8 more sources
Non-thermal desorption of complex organic molecules [PDF]
Astronomy & Astrophysics, 2019 No abstract ...
Dartois, E. +7 more
+7 more sources
A numerical approach to model chemistry of complex organic molecules in a protoplanetary disk
Open Astronomy, 2022 Multiphase astrochemical modeling presents a numerical challenge especially for the simulation of objects with the wide range of physical parameters such as protoplanetary disks.
Kiskin Mikhail Yu. +2 more
doaj +1 more source
Frontiers in Astronomy and Space Sciences, 2022 The investigation of reaction mechanisms in the interstellar medium requires the evaluation of reaction rates and branching ratios, which can be effectively obtained in the framework of the ab-initio transition state/master equation formalism.
Vincenzo Barone, Cristina Puzzarini
doaj +1 more source
The Detection of Hot Molecular Cores in the Small Magellanic Cloud
The Astrophysical Journal Letters, 2023 We report the first detection of hot molecular cores in the Small Magellanic Cloud (SMC), a nearby dwarf galaxy with 0.2 solar metallicity. We observed two high-mass young stellar objects in the SMC with the Atacama Large Millimeter/submillimeter Array ...
Takashi Shimonishi +3 more
doaj +1 more source
Synthetic Approaches to Complex Organic Molecules in the Cold Interstellar Medium
Frontiers in Astronomy and Space Sciences, 2022 The observation and synthesis of organic molecules in interstellar space is one of the most exciting and rapidly growing topics in astrochemistry.
Eric Herbst +3 more
doaj +1 more source