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Modeling the Lukewarm Corino Phase - is L1527 unique?
George E. Hassel, Eric Herbst, Robin T. Garrod
Sakai et al. have observed long-chain unsaturated hydrocarbons and cyanopolyynes in the low-mass star-forming region L1527, and have attributed this result to a gas-phase ion-molec…
Complex Chemistry in Star-Forming Regions: An Expanded Gas-Grain Warm-up Chemical Model
Robin T. Garrod, Susanna L. Widicus Weaver, Eric Herbst
Gas-phase processes were long thought to be the key formation mechanisms for complex organic molecules in star-forming regions. However, recent experimental and theoretical evidenc…
Forming an Early O-type Star Through Gas Accretion?
Luis A. Zapata, Aina Palau, Paul Ho +4
We present high angular resolution ( 3) and sensitive 1.3 mm continuum, cyanogen (CN) and vinyl cyanide (CHCN) line observations made with the Submillimeter Array…
Molecular Evolution and Star Formation: From Prestellar Cores to Protostellar Cores
Yuri Aikawa, Valentine Wakelam, Robin T. Garrod +1
We investigate molecular evolution in a star-forming core that is initially a hydrostatic starless core and collapses to form a low-mass protostar. The results of a one-dimensional…
Non-thermal desorption from interstellar dust grains via exothermic surface reactions
R. T. Garrod, V. Wakelam, E. Herbst
Aims: The gas-phase abundance of methanol in dark quiescent cores in the interstellar medium cannot be explained by gas-phase chemistry. In fact, the only possible synthesis of thi…
Dense and diffuse gas in dynamically active clouds
R. T. Garrod, D. A. Williams, J. M. C. Rawlings
We investigate the chemical and observational implications of repetitive transient dense core formation in molecular clouds. We allow a transient density fluctuation to form and di…