A 330-360 GHz spectral survey of G34.3+0.15. II. Chemical modelling. J/A+A/325/1163 J/A+A/325/1163 330-360GHz spectral lines of G 34.3+0.15. II. A 330-360 GHz spectral survey of G34.3+0.15. II. Chemical modelling. T J Millar G H Macdonald A G Gibb Astron. Astrophys. 325 1163 1997 1997A&A...325.1163M J/A+AS/119/333 : 330-360GHz spectral lines of G 34.3+0.15. (Macdonald+, 1996) Interstellar medium ISM: abundances ISM: individual (G34.3+0.15) ISM: molecules Tables 5 and 6 present calculated column densities (in units of molecules per cm^2^) of various species in the ultracompact core (UCC), the compact core (CC) and the halo, together with the total column density and the observed column density where available. Table 5 gives column densities at a time of 3x10^3yrs in the UCC and CC components and at 10^5yrs in the halo. Table 6 gives column densities at a time of 10^4yrs in the UCC and CC components and 10^5yrs in the halo.
GRS 34.3+0.1518 53 18.4+01 14 58
 *Column densities at 3x10^3^yrs in the UCC and CC components and at 10^5^yrs in the halo. *Column densities at 10^4^yrs in the UCC and CC components and at 10^5^yrs in the halo. Species Chemical species --- N(UCC) Ultracompact core column density cm-2 N(CC) Compact core column density cm-2 N(Halo) Halo column density cm-2 N(Tot) Total column density cm-2 l_N(Obs) Limit flag on N(obs) --- N(Obs) Observed column density cm-2 fig1.psEvolution of column densities in the ultracompact core fig2.psEvolution of column densities in the compact core fig3.psEvolution of column densities in the halo fig5.psRadial distributions of many molecules fig6.psRadial distributions of many molecules Tom J. Millar UMIST Patricia Bauer CDS 1997Jun12Tom Millar <tjm@rhea.phy.umist.ac.uk> J_A+A_325_1163.xml