325 citations · 1.1k across the 20 of their papers we have counts for
20 papers
Water Ice Deposition and Growth in Molecular Clouds
J. M. C. Rawlings, D. A. Williams
In interstellar clouds the deposition of water ice onto grains only occurs at visual extinctions above some threshold value A_th. At extinctions greater than A_th there is a (near-…
A gas-phase primordial origin of O2 in comet 67P/Churyumov-Gerasimenko
Jonathan M. C. Rawlings, Thomas G. Wilson, David A. Williams
Recent observations made by the Rosetta/ROSINA instrument have detected molecular oxygen in the coma of comet 67P/Churyumov-Gerasimenko with abundances at the 1-10% level relative…
A radical route to interstellar propylene formation
J. M. C. Rawlings, D. A. Williams, S. Viti +1
Complex organic molecules, such as propylene (CH3CHCH2), are detected in molecular clouds (such as TMC1) with high fractional abundances (~2.10^{-9}, relative to hydrogen) that can…
Episodic Explosions in Interstellar Ices
J. M. C. Rawlings, D. A. Williams, S. Viti +1
We present a model for the formation of large organic molecules in dark clouds. The molecules are produced in the high density gas-phase that exists immediately after ice mantles a…
Excitation of the aromatic infrared emission bands: Chemical energy in hydrogenated amorphous carbon particles?
Walter W. Duley, David A. Williams
We outline a model for the heating of hydrogenated amorphous (HAC) dust via the release of stored chemical energy and show that this energy (~12 kJ/mole) is sufficient to heat dust…
First observations of CN(2-1), HCO(3-2) and CH(3-2) emission lines in the Perseus cluster: constraints on heating mechanisms in the cluster gas
E. Bayet, S. Viti, T. W. Hartquist +1
We present the first observations of emission lines of CN(2-1), HCO(3-2) and CH(3-2) in the Perseus cluster. We observed at two positions: directly at the central galax…