319 citations · 1.4k across the 22 of their papers we have counts for
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Desorption of hot molecules from photon irradiated interstellar ices
J. D. Thrower, D. J. Burke, M. P. Collings +10
We present experimental measurements of photodesorption from ices of astrophysical relevance. Layers of benzene and water ice were irradiated with a laser tuned to an electronic tr…
Effects of CO2 on H2O band profiles and band strengths in mixed H2O:CO2 ices
Karin I. Oberg, Helen J. Fraser, A. C. Adwin Boogert +4
H2O is the most abundant component of astrophysical ices. In most lines of sight it is not possible to fit both the H2O 3 um stretching, the 6 um bending and the 13 um libration ba…
Infrared spectroscopy of solid CO-CO2 mixtures and layers
F. A. van Broekhuizen, I. M. N. Groot, H. J. Fraser +2
The spectra of pure, mixed and layered CO and CO2 ices have been studied systematically under laboratory conditions using infrared spectroscopy. This work provides improved resolut…
A 3-5m VLT spectroscopic survey of embedded young low mass stars II; OCN
F. A. van Broekhuizen, K. M. Pontoppidan, H. J. Fraser +1
The 4.62m (2164.5 cm) `XCN' band has been detected in the -band spectra of 34 deeply embedded young stellar objects (YSO's), observed with high signal-to-noise and hig…
Probing the Surfaces of Interstellar Dust Grains: The Adsorption of CO at Bare Grain Surfaces
Helen J. Fraser, Suzanne E. Bisschop, Klaus M. Pontoppidan +2
A solid-state feature was detected at around 2175 cm-1 towards 30 embedded young stellar objects in spectra obtained using the ESO VLT-ISAAC. We present results from laboratory stu…
Results from a VLT-ISAAC survey of ices and gas around young stellar objects
K. M. Pontoppidan, H. Fraser, F. L. Schoeier +3
General results from a 3-5 micron spectroscopic survey of nearby low-mass young stellar objects are presented. L and M-band spectra have been obtained of \~50 low mass embedded you…
Thermal Desorption of Water-Ice in the Interstellar Medium
Helen J. Fraser, Mark P. Collings, Martin R. S. McCoustra +1
Water (H2O) ice is an important solid constituent of many astrophysical environments. To comprehend the role of such ices in the chemistry and evolution of dense molecular clouds a…