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Microscopic simulation of methanol and formaldehyde ice formation in cold dense cores
H. M. Cuppen, E. F. van Dishoeck, E. Herbst +1
Methanol and its precursor formaldehyde are among the most studied organic molecules in the interstellar medium and are abundant in the gaseous and solid phases. We recently develo…
Formation rates of complex organics in UV irradiated CH3OH-rich ices I: Experiments
K. I. Oberg, R. T. Garrod, E. F. van Dishoeck +1
(Abridged) Gas-phase complex organic molecules are commonly detected in the warm inner regions of protostellar envelopes. Recent models show that photochemistry in ices followed by…
Quantification of segregation dynamics in ice mixtures
Karin I. Öberg, Edith C. Fayolle, Herma M. Cuppen +2
(Abridged) The observed presence of pure CO2 ice in protostellar envelopes is attributed to thermally induced ice segregation, but a lack of quantitative experimental data has prev…
The photodissociation and chemistry of CO isotopologues: applications to interstellar clouds and circumstellar disks
R. Visser, E. F. van Dishoeck, J. H. Black
Aims. Photodissociation by UV light is an important destruction mechanism for CO in many astrophysical environments, ranging from interstellar clouds to protoplanetary disks. The a…
High Resolution Mid-Infrared Spectroscopy of NGC 7538 IRS 1: Probing Chemistry in a Massive Young Stellar Object
C. Knez, J. H. Lacy, N. J. Evans +3
We present high resolution (R = 75,000-100,000) mid-infrared spectra of the high-mass embedded young star IRS 1 in the NGC 7538 star-forming region. Absorption lines from many rota…