77 citations · 149 across the 6 of their papers we have counts for
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The abundance of SiS in circumstellar envelopes around AGB stars
F. L. Schoeier, J. Bast, H. Olofsson +1
New SiS multi-transition (sub-)millimetre line observations of a sample of AGB stars with varying photospheric C/O-ratios and mass-loss rates are presented. A combination of low- a…
SiO in C-rich circumstellar envelopes of AGB stars: effects of non-LTE chemistry and grain adsorption
F. L. Schoeier, H. Olofsson, A. A. Lundgren
New SiO multi-transition millimetre line observations of a sample of carbon stars, including J=8-7 observations with the APEX telescope, are used to probe the role of non-equilibri…
H2CO and CH3OH abundances in the envelopes around low-mass protostars
J. K. Jorgensen, F. L. Schoeier, E. F. van Dishoeck
This paper presents the third in a series of single-dish studies of molecular abundances in the envelopes around a large sample of 18 low-mass pre- and protostellar objects. It foc…
Properties of detached shells around carbon stars: Evidence of interacting winds
F. L. Schoeier, M. Lindqvist, H. Olofsson
The nature of the mechanism responsible for producing the spectacular, geometrically thin, spherical shells found around some carbon stars has been an enigma for some time. Based o…
Molecular freeze-out as a tracer of the thermal and dynamical evolution of pre- and protostellar cores
J. K. Jorgensen, F. L. Schoeier, E. F. van Dishoeck
Radiative transfer models of multi-transition observations are used to determine molecular abundances as functions of position in pre- and protostellar cores. The data require a "d…
A submillimeter line survey of low-mass protostars: prelude to ALMA and Herschel
E. F. van Dishoeck, J. K. Joergensen, S. Maret +5
The results from a single-dish molecular line survey of a set of 18 deeply embedded young stellar objects are summarized. More than 40 lines from 16 different species were observed…