activity
20012008
most citedNitrogen superfractionation in dense cloud cores

92 citations · 216 across the 7 of their papers we have counts for

collaborators

7 papers

astro-ph2008★ 6 cited

Clouds, Clumps, Cores & Comets - a Cosmic Chemical Connection?

S. B. Charnley, S. D. Rodgers

We discuss the connection between the chemistry of dense interstellar clouds and those characteristics of cometary matter that could be remnants of it. The chemical evolution obser…

astro-ph2008★ 92 cited

Nitrogen superfractionation in dense cloud cores

S. D. Rodgers, S. B. Charnley

We report new calculations of interstellar 15N fractionation. Previously, we have shown that large enhancements of 15N/14N can occur in cold, dense gas where CO is frozen out, but…

astro-ph2007★ 1 cited

Chemical chronology of the Southern Coalsack

S. D. Rodgers, S. B. Charnley, R. G. Smith +1

We demonstrate how the observed H2O ice column densities toward three dense globules in the Southern Coalsack could be used to constrain the ages of these sources. We derive ages o…

astro-ph2007★ 12 cited

Observations of chemical differentiation in clumpy molecular clouds

J. V. Buckle, S. D. Rodgers, E. S. Wirström +4

We have extensively mapped a sample of dense molecular clouds (L1512, TMC-1C, L1262, Per 7, L1389, L1251E) in lines of HC3N, CH3OH, SO and C^{18}O. We demonstrate that a high degre…

astro-ph2002★ 4 cited

Chemical Processes in Cometary Comae

S. B. Charnley, S. D. Rodgers, H. M. Butner +1

Recent developments in the chemical modelling of cometary comae are described. We discuss the cyanide chemistry and present new HCN observations of the recent comet C/2002 C1 (Ikey…

astro-ph2001★ 36 cited

Biomolecules in the Interstellar Medium and Comets

S. B. Charnley, S. D. Rodgers, Y-J. Kuan +1

We review recent studies of organic molecule formation in dense molecular clouds and in comets. We summarise the known organic inventories of molecular clouds and recent comets, pa…